From owner-jsoftware@lists.interlog.com Thu Dec 31 04:45:53 1998 Date: Thu, 31 Dec 1998 10:45:56 +0200 From: Anssi Seppala Subject: Re: Jforum: Event Handlers In-Reply-To: <368AC446.448F@airmail.net> To return the focus to main dialog after return from subdialog use wd 'psel main' I have a convention to use a loop to keep the event handling in the subform. The variable close has value 0 in the loop and the dialog stays in the while. do. end. loop as long as the close variable is 0. The Close button of the subform sets new value for the close variable: ... close=: 0 while. -. close do. wd 'wait' wdhandler '' end. ) ) At 18:24 30.12.1998 -0600, you wrote: >I have a program that uses 2 windows. Let's say mainwin and subwin. >When I open subwin from mainwin it executes wd 'wait'. While it >executes everything is fine until it get's closed with wd 'pclose'. >Mainwin is then displayed again. My problem is, how do I know when I'm >back in mainwin. It doesn't seem to trigger an event, and I need to do >some processing when subwin is done. > >Also, when mainwin invokes subwin with the wd 'wait' the next statement >in the main program is executed. If its waiting on subwin, why does it >continue in mainwin? It doesn't seem to work this way with the mb >common dialogs. How are they coded to achieve a total wait? > >Is there someplace that these messages are stored? If someone has >already answered this it would save me asking again. > >Thanks to everyone in advance. > >---------------------------------------------------------------------------- >---- >J Forum: for information about this list, see >http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Dec 31 10:21:44 1998 Date: Thu, 31 Dec 1998 10:09:10 -0500 From: Murray Eisenberg Organization: Mathematics & Statistics, Univ. of Mass./Amherst Subject: Jforum: JUSER.CNT problem References: With J 4.02a for Win 95/NT, each time when I select "User" from the Help menu, a Windows Help error dialog box pops up with the message: Unable to open the file G:\HELP\WINHLP\JUSER.CNT (G: happens to be my CD-ROM drive.) The file JUSER.CNT is where it ought to be (at least where I think it ought to be) on my hard drive, namely, in J402\System\Extras\help (along with all the other .cnt and other help files). No other selection from the Help menu causes the same Windows Help error message. After I click the OK button in the Windows Help error dialog box, the desired User help does opens. But it's really annoying to have to go through this extra step each time I want to access User help. I prowled around in the Registry but found no entry likely to be causing this problem there. Diagnosis? Cure? -- Murray Eisenberg Internet: murray@math.umass.edu Mathematics & Statistics Dept. Voice: 413-545-2859 (W) University of Massachusetts 413-549-1020 (H) Amherst, MA 01003 Fax: 413-545-1801 -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Dec 31 10:46:39 1998 From: "Bjorn G. Helgason" Subject: Jforum: What happened? Date: Thu, 31 Dec 1998 15:42:05 -0000 Today it is the last day of the year in Iceland. It is customary to stop a bit and look back and reflect on what has been achieved last year and put it in respect to earlier years and make promises for the future. So what happened ? Not very much it seems. We got J to keep in the pocket. When I got J the first time I got a discette from Ken 1990 and I could keep it in my pocket. When I started to look at it I discovered that I could manage to understand about 1% of what was there. I still can only understand about 1% of what is in J. J then was amazingly compact, clean and powerful and had a great future. J is still amazingly compact, clean and powerful and has a great future. So what is new then. Well for one thing it is so much easier now to start using J and learn to use all kinds of very advanvanced features. For another then there are so many others who have already spent some years of learning how to do things that those who experience difficulties have a lot of examples and experienced users to turn to. I think that now finally we have a real opportunity to begin to get a really broader audience. It is like rings on a water. The first waves build a circle that is narrow and then the rings get wider and wider. Even if we have seen very big changes to J during last year then in the light of earlier achievements they only improved an already near perfect product. The mapped file for one is an enourmously important feature but it will probably take a long time before we will see the impact and the importance of it. Getting J to run on a calculator is another very important milestone and it will surely lift J into categories of users and applications we could hardly dream of just a few years ago. The labs, tutorials and demos have been and area that has been lifted to a near perfection and wil have a great effect of spreading the knowledge of how to do things in and with J. The importance of an active web to spread and concentrate knowledge about J and its usage has also come to be during this passing year. I could go on and on about what it is that is most important in making J the most important product advancement this year but mostly it is the combined effect of gradual enhancements that have happend over the years behind great ideas. I thank you all I have had the pleasure of meeting in person or on the net to share the experience of J and its applications. I want to congratulate us all on having this marvelous product and wish us all a great new and coming years. And if you are lucky then this will be the last message you will receive from me this year. Happy new Jer. /Gosi -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Dec 31 11:14:03 1998 From: "Chris Burke" Subject: Re: Jforum: Event Handlers Date: Thu, 31 Dec 1998 11:04:26 -0500 charset="iso-8859-1" >I have a program that uses 2 windows. Let's say mainwin and subwin. >When I open subwin from mainwin it executes wd 'wait'. While it >executes everything is fine until it get's closed with wd 'pclose'. >Mainwin is then displayed again. My problem is, how do I know when I'm >back in mainwin. It doesn't seem to trigger an event, and I need to do >some processing when subwin is done. Define a verb that reinitialises main, say main_return, then have the close handlers of subwin call it. >Also, when mainwin invokes subwin with the wd 'wait' the next statement >in the main program is executed. If its waiting on subwin, why does it >continue in mainwin? It doesn't seem to work this way with the mb >common dialogs. How are they coded to achieve a total wait? Without seeing the code, I'm not sure what is going wrong. However, I suggest you make a couple of changes. First, do not use 'wait' - you would be much better off defining subwin as an owner form (see the form edit dialog for a parent window). This prevents events occuring in mainwin while subwin is active. Second, you should not need any statements after invoking subwin from main. Any such statements should instead be in the main_return verb suggested above. >Is there someplace that these messages are stored? If someone has >already answered this it would save me asking again. The J Forum is not yet stored. We'll get something up and running shortly. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Dec 31 16:10:24 1998 Date: Thu, 31 Dec 1998 14:48:42 -0500 From: Eric Iverson Organization: Iverson Software Inc. Subject: Re: Jforum: Event Handlers References: <368AC446.448F@airmail.net> >Peter Nichols wrote: > When I open subwin from mainwin it executes wd 'wait'.... The short answer is: don't use wd'wait' wait is a holdover from the earliest verion of wd that worked between a task running in DOS and a task running in Windows. I probably should kill it off, but a few residual uses linger on. wait should never be used in a normal GUI application as it is not part of the event model. Chris, in another message, suggests what you should do instead. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Dec 31 16:10:29 1998 Date: Thu, 31 Dec 1998 16:00:52 -0500 From: Eric Iverson Organization: Iverson Software Inc. Subject: Re: Jforum: JUSER.CNT problem References: <368B9396.5A2EF496@math.umass.edu> Murray Eisenberg wrote: > > With J 4.02a for Win 95/NT, each time when I select "User" from the Help > menu, a Windows Help error dialog box pops up with the message: > > Unable to open the file > G:\HELP\WINHLP\JUSER.CNT I've seen variations on this problem and have never been able to track it down and then it would go away. Your message gave a clue and I took another look. The problem is caused by gid files in the \windows\help directory. gid files are hidden files that are 'compiled' help stuff. You need to use something like the DOS dir /ah command to see them and the attrib -h jxxxx.gid to make them visible so you can delete them. Check your \windows\help directory and you will find some j*.gid files. Erase these files and your problem should go away. The problem is that windows help looks for gid files in this directory before looking in the current directory (path of the hlp file it is opening). The bad gid file in the \windows\help directory was probably created browseing the cdrom help files directly from winhelp, in which case it puts the gid file in its own directory. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Dec 31 16:21:49 1998 Date: Thu, 31 Dec 1998 16:12:00 -0500 (EST) From: Olivier Lefevre Subject: Re: Jforum: JUSER.CNT problem In-Reply-To: <368BE604.4E5D@interlog.com> [Long description of the evil ways of WINHLP deleted] Isn't Windows entertainingly crappy? Best wishes for the new year to you all, -- O.L. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Dec 31 18:31:11 1998 Date: Thu, 31 Dec 1998 17:23:55 -0600 From: Peter Nichols Subject: Re: Jforum: What happened? References: <01BE34D4.7CA74280@geisli-32.centrum.is> I agree Bjorn, it's been awesome to begin learning J. I never thought I would find something better than APL, but now I'm totally won over. Once again I feel that I've found a 'tool for thought'. But perhaps best is the quality of the feedback and help I've found in the forum. You guys are great. Thanks for everything. Peter Nichols Bjorn G. Helgason wrote: > > Today it is the last day of the year in Iceland. > It is customary to stop a bit and look back and > reflect on what has been achieved last year and > put it in respect to earlier years and make promises > for the future. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Dec 31 20:51:25 1998 Date: Fri, 01 Jan 1999 03:39:33 +0200 From: Anssi Seppala Subject: Re: Jforum: Event Handlers In-Reply-To: <009501be34d7$529d3500$1e0114d1@xps200> Content-Transfer-Encoding: 8bit Oh NO Chris & Eric, I was a few months ago struggling with wait and succeeded with special "close" loop. Now you are recommending not to use 'wait''. I do not understand, please give me an example. Anssi At 11:04 31.12.1998 -0500, Chris wrote: >First, do not use 'wait' - you would... ------------------------------------------------------------------- Anssi Sepp�l� Konsultti, s�hk�markkinat ja s�hk�njakelu: Sovellukset ja ohjelmistot e-mail: anssi.seppala@enease.fi tel: +358 9 45400550 Enease Oy fax: +358 9 45400551 Mannerheimintie 66 A mob: +358 400 760077 FIN - 00260 HELSINKI, Finland http://www.kolumbus.fi/enease/ -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Dec 31 23:10:07 1998 From: "Chris Burke" Subject: Re: Jforum: Event Handlers Date: Thu, 31 Dec 1998 22:49:59 -0500 charset="iso-8859-1" >I was a few months ago struggling with wait and succeeded with special >"close" loop. Now you are recommending not to use 'wait''. I do not >understand, please give me an example. An example is below. Note that the main form is disabled when the subform is called. However, you can still use the J session. The standard J event handler can be used for pretty well any GUI, and is far easier to use than wait. The only thing that wait gives you that is not immediately available with the standard event handler is that wait disables the rest of the J session until the wait is completed. The only example in the scripts that really uses this feature is the input log dialog box. In this case, wait prevents someone typing in the session while the input log is displayed, so that the two do not get out of synch. Even in this case, the wait is not strictly necessary. Apart from the input log dialog, any remaining examples of wait in the J scripts are likely based on code written when wait was the only mechanism supported, which was true of J up to version 2.04. The example follows. require 'jinput' MAINWIN=: 0 : 0 pc mainwin closeok; xywh 136 8 34 12;cc getname button;cn "Get Name"; xywh 136 23 34 12;cc cancel button;cn "Cancel"; xywh 8 15 29 9;cc label static;cn "Name:"; xywh 37 15 80 9;cc name static;cn ""; pas 6 6;pcenter; rem form end; ) mainwin_run=: 3 : 0 wd MAINWIN wd 'pshow;' ) mainwin_cancel_button=: mainwin_close=: wd bind 'pclose' mainwin_getname_button=: 3 : 0 'Enter your name' conew 'jinput' ) input_result=: 3 : 0 wd 'set name *',y. ) mainwin_run'' -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 1 06:59:11 1999 Date: Fri, 01 Jan 1999 13:40:25 +0200 From: Anssi Seppala Subject: Re: Jforum: Event Handlers In-Reply-To: <002201be353a$292c58a0$550114d1@xps200> Chris, Thanks for your explanation. One thing I do not understand in your example. What mechanism disabes the main form? For my applications it is the most important feature to keep the user in one dialog in time. Therefore the wd'wait' did the job. Now in your example I look at the jinput script, but where is the "disable main form"-command. Or is it default here? Anssi At 22:49 31.12.1998 -0500, you wrote: >>I was a few months ago struggling with wait and succeeded with special >>"close" loop. Now you are recommending not to use 'wait''. I do not >>understand, please give me an example. > >An example is below. Note that the main form is disabled when the subform is >called. However, you can still use the J session. > >The standard J event handler can be used for pretty well any GUI, and is far >easier to use than wait. The only thing that wait gives you that is not >immediately available with the standard event handler is that wait disables >the rest of the J session until the wait is completed. The only example in >the scripts that really uses this feature is the input log dialog box. In >this case, wait prevents someone typing in the session while the input log >is displayed, so that the two do not get out of synch. Even in this case, >the wait is not strictly necessary. > >Apart from the input log dialog, any remaining examples of wait in the J >scripts are likely based on code written when wait was the only mechanism >supported, which was true of J up to version 2.04. > >The example follows. ... -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 1 08:10:39 1999 From: "Chris Burke" Subject: Re: Jforum: Event Handlers Date: Fri, 1 Jan 1999 07:59:21 -0500 charset="iso-8859-1" Anssi >Thanks for your explanation. One thing I do not understand in your example. >What mechanism disabes the main form? > >For my applications it is the most important feature to keep the user in >one dialog in time. Therefore the wd'wait' did the job. Now in your example >I look at the jinput script, but where is the "disable main form"-command. >Or is it default here? The "owner" parameter in the pc command, in this case: pc a dialog owner; See Help|User|Form Editor|Parent. Chris -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 1 08:51:26 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Mac runtime for Pousse? Date: Fri, 1 Jan 1999 13:43:34 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE358D.A6F83DA0" ------ =_NextPart_000_01BE358D.A6F83DA0 Content-Transfer-Encoding: quoted-printable The solution to the problem with the Mac was closer to home than I expected. I started to read about runtime on my Windows=20 system and there it was: "Macintosh The Macintosh doesn't have command line parameters so there is no /rt = parameter. If J is started by double-clicking a script file with a = suffix of .ijr, then J is started as a runtime application. The ijr file = does not have to be an encoded ijr file." Therefore I conclude that my Windows solution for pousse can be made by just renaming pusl.ijs to pusl.ijr on the Mac and it would run by=20 double-clicking on that file on the Mac. It sometimes helps to read the manual. /Gosi ------ =_NextPart_000_01BE358D.A6F83DA0 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IgwNAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABACQAAABSRTogSmZv cnVtOiBNYWMgcnVudGltZSBmb3IgUG91c3NlPwA4DAEFgAMADgAAAM8HAQABAA0AKwAiAAUANwEB IIADAA4AAADPBwEAAQANACUAFAAFACMBAQmAAQAhAAAAQTAyNDhEQkY2NkExRDIxMThCOUEyQ0Ex RkZDMDAwMDAAKwcBA5AGAOADAAASAAAACwAjAAEAAAADACYAAAAAAAsAKQABAAAAAwA2AAAAAABA ADkAgKG2uYw1vgEeAHAAAQAAACQAAABSRTogSmZvcnVtOiBNYWMgcnVudGltZSBmb3IgUG91c3Nl PwACAXEAAQAAABsAAAABvjNW0Y/sEpGpn0cR0ouaLKH/wAAAAI1CaMMAHgAeDAEAAAAFAAAAU01U UAAAAAAeAB8MAQAAABAAAABnb3NpQGNlbnRydW0uaXMAAwAGEOyoKpMDAAcQ+wEAAB4ACBABAAAA ZQAAAFRIRVNPTFVUSU9OVE9USEVQUk9CTEVNV0lUSFRIRU1BQ1dBU0NMT1NFUlRPSE9NRVRIQU5J RVhQRUNURURJU1RBUlRFRFRPUkVBREFCT1VUUlVOVElNRU9OTVlXSU5ET1dTU1kAAAAAAgEJEAEA AABbAgAAVwIAAMcDAABMWkZ1lxiWo/8ACgEPAhUCqAXrAoMAUALyCQIAY2gKwHNldDI3BgAGwwKD MgPFAgBwckJxEeJzdGVtAoMzdwLkBxMCgH0KgAjPCdk78RYPMjU1AoAKgQ2xC2DAbmcxMDM5CvsU URUL8mMAQCAKhVRoZUQgcwbwdXRpAiAg3HRvHCAbcRNQbwJgE+BuIAPwHGAcU00A0B0QYb0EIGMV oBGwBcAcMWgDcA5lCoUcYAORSSBleOZwBZAT0GQuH8ETwArA9yBBHCIWEGEhEAGgCGAFQCxydQIw B3EgHAFtecQgVwuAZG93BCAKhb5zE7MhoCMQHFIWECAdMO0d4joKhQqFIh2xC4AcMNxzaCVsG2Im VyAjIAeQbG4nBUARgHYbgAWgbbsDgSEQbAuAHIEKwGEHgF8T0BGgG5EkhgQgbhxAL8cAICo4IHFm IEorciC2VmIi0CMgdRzRLR4waXRjawuAZyGgG5AFBGYvAxAbgB0jLwF1DdBpeIMigCzgLmlqciwc Up8DoC0LHgEvACIWYXALUP0ukGEb4iBwG2IxAS+EKKL3K6EpBRwxYjMhA6AJ8AWg5w2wIRA0Vi4i Ju8WEAIQ/yTBH9AFoDZgCkANsB9yBUD/IskbpzihHJAIYAQQKVEDkd818QDADbAKhS3RajuQIfHX CfAqcC7CcDuQbDDxBCD/HDE+FQXAHAIdhSRSJPIIYP5sIRAiES3CCoUuDj9jOcHrL5M/aC4lbEkF QBugKoHzB3MbcGxwPoMhYxxiA4GmdQdARD0vRx5QaQqFBRUxAElgAAMAEBAAAAAAAwAREAAAAABA AAcwILwh24s1vgFAAAgwILwh24s1vgEeAD0AAQAAAAUAAABSRTogAAAAANYN ------ =_NextPart_000_01BE358D.A6F83DA0-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 1 10:32:45 1999 Date: Fri, 01 Jan 1999 10:22:11 -0500 From: Murray Eisenberg Organization: Mathematics & Statistics, Univ. of Mass./Amherst Subject: Re: Jforum: JUSER.CNT problem References: <368B9396.5A2EF496@math.umass.edu> <368BE604.4E5D@interlog.com> Diagnosed and cured!! Eric Iverson wrote: > > Murray Eisenberg wrote: > > > > With J 4.02a for Win 95/NT, each time when I select "User" from the Help > > menu, a Windows Help error dialog box pops up with the message: > > > > Unable to open the file > > G:\HELP\WINHLP\JUSER.CNT > > I've seen variations on this problem and have never been able to track > it down and then it would go away. Your message gave a clue and I took > another look. > > The problem is caused by gid files in the \windows\help directory. gid > files are hidden files that are 'compiled' help stuff. You need to use > something like the DOS dir /ah command to see them and the attrib -h > jxxxx.gid to make them visible so you can delete them. > > Check your \windows\help directory and you will find some j*.gid files. > Erase these files and your problem should go away. > > The problem is that windows help looks for gid files in this directory > before looking in the current directory (path of the hlp file it is > opening). The bad gid file in the \windows\help directory was probably > created browseing the cdrom help files directly from winhelp, in which > case it puts the gid file in its own directory. > > -------------------------------------------------------------------------------- > J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -- Murray Eisenberg Internet: murray@math.umass.edu Mathematics & Statistics Dept. Voice: 413-545-2859 (W) University of Massachusetts 413-549-1020 (H) Amherst, MA 01003 Fax: 413-545-1801 -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 1 10:33:50 1999 Date: Fri, 1 Jan 1999 10:24:16 -0500 (EST) From: "Brian M. Schott" Subject: Re: Jforum: What happened? In-Reply-To: <368C078B.728D@airmail.net> Thank you Bjorn and Peter for getting the ball acknowledging the value of this forum and J rolling. I want to push the ball along too. Thank you ISI and J'ugglers. (B=) On Thu, 31 Dec 1998, Peter Nichols wrote: +I agree Bjorn, it's been awesome to begin learning J. I never thought I +would find something better than APL, but now I'm totally won over. +Once again I feel that I've found a 'tool for thought'. But perhaps +best is the quality of the feedback and help I've found in the forum. +You guys are great. Thanks for everything. + +Peter Nichols -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 1 10:52:07 1999 Date: Fri, 1 Jan 1999 10:42:35 -0500 (EST) From: "Brian M. Schott" Subject: RE: Jforum: Mac runtime for Pousse? In-Reply-To: <01BE358D.A6EF15E0@geisli-76.centrum.is> On Fri, 1 Jan 1999, Bjorn G. Helgason wrote: +The Macintosh doesn't have command line parameters so there +is no /rt parameter. If J is started by double-clicking a +script file with a suffix of .ijr, then J is started as a +runtime application. The ijr file does not have to be an +encoded ijr file." +Therefore I conclude that my Windows solution for pousse +can be made by just renaming pusl.ijs to pusl.ijr on the +Mac and it would run by double-clicking on that file on the +Mac. I doubt that simply renaming an .ijs file to an .ijr file will make the resulting script into a runtime file. Rather, I suspect that the file has to be a proper .ijr file (from Windows) first. (B=) -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 1 12:10:37 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Mac runtime for Pousse? Date: Fri, 1 Jan 1999 17:01:58 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE35A8.A7F54700" ------ =_NextPart_000_01BE35A8.A7F54700 From: Brian M. Schott[SMTP:dscbms@panther.Gsu.EDU] > On Fri, 1 Jan 1999, Bjorn G. Helgason wrote: > > > +The Macintosh doesn't have command line parameters so there > > +is no /rt parameter. If J is started by double-clicking a > > +script file with a suffix of .ijr, then J is started as a > > +runtime application. The ijr file does not have to be an > > +encoded ijr file." > I doubt that simply renaming an .ijs file to an .ijr > file will make the resulting script into a runtime file. Well... That is what the J Help claims and I urge you or someone else to try it and if it DOES NOT work please report it. And if it DOES work as I expect it to do then I urge you to report that as well so we know for sure. I will test it myself as soon as I get the opportunity. /Gosi ------ =_NextPart_000_01BE35A8.A7F54700 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+Ih4RAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADAFAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAABR80AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABACQAAABSRTogSmZv cnVtOiBNYWMgcnVudGltZSBmb3IgUG91c3NlPwA4DAEFgAMADgAAAM8HAQABABEAAQA6AAUAKQEB IIADAA4AAADPBwEAAQARAAEAOgAFACkBAQmAAQAhAAAANkIyRDE3NzM5QUExRDIxMThCOUEyQ0Ex RkZDMDAwMDAAHgcBA5AGAMgEAAASAAAACwAjAAEAAAADACYAAAAAAAsAKQABAAAAAwA2AAAAAABA ADkAgL56cag1vgEeAHAAAQAAACQAAABSRTogSmZvcnVtOiBNYWMgcnVudGltZSBmb3IgUG91c3Nl PwACAXEAAQAAABYAAAABvjWocXpzFy1woZoR0ouaLKH/wAAAAAAeAB4MAQAAAAUAAABTTVRQAAAA AB4AHwwBAAAAEAAAAGdvc2lAY2VudHJ1bS5pcwADAAYQMdDzAQMABxBGAgAAHgAIEAEAAABlAAAA RlJPTTpCUklBTk1TQ0hPVFRTTVRQOkRTQ0JNU0BQQU5USEVSR1NVRURVT05GUkksMUpBTjE5OTks QkpPUk5HSEVMR0FTT05XUk9URTorVEhFTUFDSU5UT1NIRE9FU05USEFWRQAAAAACAQkQAQAAAEYD AABCAwAAPAYAAExaRnVio2Eq/wAKAQ8CFQKoBesCgwBQAvIJAgBjaArAc2V0MjcGAAbDAoMyA8UC AHByQnER4nN0ZW0CgzN3AuQHEwKAfQqACM8J2TvxFg8yNTUCgAqBDbELYEBuZzEwMzkK/zFWNgwh E1BvE9BjBUBGPQNhOgrhGesa1gyCIEJzByEDoE0uBgARcBrwdIBbU01UUDpkBPCwYm1zQAqwAjBo BJAALkdzdS5FRFXCXQqLbGkzNg3wC1XLFFEL8mMAQCA+G6ch1Y0a1k8DoBtQaSwgImAySgORMTkl ACRwQmoLBbADoEcd4EhlbGekYXMCICB3GuI6Cod/IX8ijxrWJt8n6Sh/GtYrHlQfcAXQANALgHRv c5BoIGRvB5BuJwVALRGAdi2ABaBtA4FkIO0hAG4tgAqxYQeAE9ARoOogJjAgH2JlKg8rHywv0y0x BAAgbjCgLwAgL9jpHeBJZiSgIDRxE8AKwFMT0C9wYnkuMXUCYGUkLWMhAGNrC4BnIL5hMR8yLzM/ LTEE9WYDEF8tgAPwH2A34DCAdQ3QaQh4IG810C5panL/JHAfYQOgNfsmIDfvOP86D7ktE3J1AjAH cT7QcAtQ/TeAYUKAAiAd4C1iPUE7xL8uQjSRLqUt8DawQrFuPv//QA9BHy0xCfAFoA2wL3BD5rwu Iin/J99IDx0USTbj/wVAH2BDMDCAB3ALUDbQFhD+bjAQN7MDoD0xBCA700VRvU+0ckpvS39MjzvV bAMgvQDAa0UxLXEWEB/AbEKA/zfBBPUt0jxhQlZJ8wqPUezlV9VXJfBsLlpwSlZX1fctYE6BNHF3 TnJVQjXwJeH+cC8AC2EfAEWhL3BN4Ahw+mctgHkIYDzwBcAmMAeAnwIgMQYl8BGwRUJ0cjbQjzww XXMGkGAyRE9FBfDYTk9UJmAFsGsv0DcweyYgVWJwFbFgMVfGV9VBj2CMYaM+sU3gZXhwGxL/YEFF US5APYRdyFfVRVFiZTtOYz6xd1pBMIJo8CBr/zSgB+ACEF6BCHBXt1fVTeDvVKMT0BPAYDJtE7Al 8DXQvz6xJjAmQWUjXgBcRG9C4JcVsUJgPDB5Yv0vRy4AFmlX1RUxAHCwAAADABAQAAAAAAMAERAA AAAAQAAHMKDoH5ynNb4BQAAIMEDmg3GoNb4BHgA9AAEAAAAFAAAAUkU6IAAAAACNcg== ------ =_NextPart_000_01BE35A8.A7F54700-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 1 14:36:38 1999 Date: Fri, 01 Jan 1999 21:11:23 +0200 From: Anssi Seppala Subject: Re: Jforum: Event Handlers In-Reply-To: <000a01be3586$9c002ea0$1d0114d1@xps200> Content-Transfer-Encoding: 8bit Thanks Chris, Finally the problem is solved. I never expected that this could be a form "owner" parameter. Now I have removed all the loops and wd'wait' statements. Anssi PS The benefit of this mistake was however, that I now also understand the eventhandler mechanism. At 07:59 1.1.1999 -0500, you wrote: >The "owner" parameter in the pc command, in this case: > > pc a dialog owner; > >See Help|User|Form Editor|Parent. > >Chris ------------------------------------------------------------------- Anssi Sepp�l� Konsultti, s�hk�markkinat ja s�hk�njakelu: Sovellukset ja ohjelmistot e-mail: anssi.seppala@enease.fi tel: +358 9 45400550 Enease Oy fax: +358 9 45400551 Mannerheimintie 66 A mob: +358 400 760077 FIN - 00260 HELSINKI, Finland http://www.kolumbus.fi/enease/ -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 1 20:02:48 1999 Date: Fri, 1 Jan 1999 19:51:46 -0500 From: Alain Miville de Chene Subject: Jforum: Archival Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by lists.interlog.com id TAA07603 It has been mentioned many times that this list is not archived. If it were an ordinary news group (comp.lang.jsoftware) it would automatically be archived by dejanews and would gain in usefulness. There are many simple and complex questions answered here. Of course it would be a target for spam (we have some balls for you jugglers at www.balls.com) but that may be the price to pay to gain free archival. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 2 09:44:17 1999 Date: Sat, 02 Jan 1999 08:32:27 -0600 From: Steven H Rogers Organization: S H Rogers & Associates Subject: Re: Jforum: Archival References: <199901011952_MC2-6536-A8A0@compuserve.com> Alain Miville de Chene wrote: > > It has been mentioned many times that this list is not archived. If it were > an ordinary news group (comp.lang.jsoftware) it would automatically be > archived by dejanews and would gain in usefulness. There are many simple > and complex questions answered here. Of course it would be a target for > spam (we have some balls for you jugglers at www.balls.com) but that may be > the price to pay to gain free archival. > > -------------------------------------------------------------------------------- > J Forum: for information about this list, see http://www.jsoftware.com/forum.htm A moderated news group would would help with the spam, though it would be a burden for the moderator. -- Steve ----------------------- Steven H. Rogers, Ph.D. Systems Engineer shrogers@ionet.net -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 2 13:10:53 1999 Date: Sat, 02 Jan 1999 11:33:38 -0600 From: Steven H Rogers Organization: S H Rogers & Associates Subject: Re: Jforum: What happened? References: <01BE34D4.7CA74280@geisli-32.centrum.is> Bjorn G. Helgason wrote: > > I think that now finally we have a real opportunity to begin to > get a really broader audience. It is like rings on a water. The > first waves build a circle that is narrow and then the rings get > wider and wider. > > Even if we have seen very big changes to J during last year then > in the light of earlier achievements they only improved an already > near perfect product. > It would be more nearly perfect if the full funcitonality of the Win32 version could be provided for the Unix version. > > Getting J to run on a calculator is another very important milestone > and it will surely lift J into categories of users and applications we > could hardly dream of just a few years ago. > This is indeed good. I ran J for DOS on my HP100LX, though it wasn't very convienient as I had to close down all other applications to free up enough memory for it. When the HP died, I replaced it with a Palm Pilot as I wasn't impressed by the price+performance+bulk combination of the WinCE palmtops. How about J for the Palm OS? It's a bigger market than WinCE. > > The importance of an active web to spread and concentrate knowledge > about J and its usage has also come to be during this passing year. > Speaking of the Web, here's a page that compares several functional languages to IDL and C++ for scientific programming: "http://www.azstarnet.com/~dmcclain/Language%20Study.html". J fares well, though I think it may have been underrated in a couple of categories. > And a Happy New Year to all. -- Steve ---------------------- Steven H. Rogers, Ph.D. Systems Engineer shrogers@ionet.net -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 2 15:34:46 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: What happened? Date: Sat, 2 Jan 1999 20:12:50 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE368D.CEA71E60" ------ =_NextPart_000_01BE368D.CEA71E60 From: Steven H Rogers[SMTP:shrogers@ionet.net] > It would be more nearly perfect if the full funcitonality of the Win32 > version could be provided for the Unix version. What you are refering to is the excellent cooperation between J and the Windowing environment under the Windows. What would be needed on the Unix side is a similar arrangement with X and/or similar Windowing in Unix. In Rome last year some people were talking about experiments with X/J connections and as far as I could understand then they are very promising. So it may not be very long before you begin to hear more about Windowing possibilities in Unix. X as you very probably know has much more possibilities and options than Windows so whatever happens there it is sure to surpass quickly whatever you at the moment have in Windows. On my PC I have dual boot so I can start the PC either in Windows or in Linux. In Linux I can run J and X. Unfortunately my PC is not very powerful so running applications together with X is not as enjoyable as it could be. I see enough though to understand that when I get a more powerful PC what opportunities that will bring. I have also had the privilege to use X on other machines so I do know a fair bit about X. I do agree with you that this is something that needs to be enhanced and I am looking very much forward to see J evolve more in this direction too. In the meantime you do have an excellent J in Unix which allows you aready to do a lot of things you can not do in Windows and it is more questionable whether those features will ever be available in Windows and that has to do with limitations in Windows not J. So I guess what you are asking for is more X interactions in J and I do agree that will be nice. It will probably happen sooner than you expect. /Gosi ------ =_NextPart_000_01BE368D.CEA71E60 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IjEUAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABABsAAABSRTogSmZv cnVtOiBXaGF0IGhhcHBlbmVkPwD2CAEFgAMADgAAAM8HAQACABQADAAyAAYAMQEBIIADAA4AAADP BwEAAgATADYAAwAGACsBAQmAAQAhAAAANjg2NEQxNjI3Q0EyRDIxMThCOUEyQ0ExRkZDMDAwMDAA FAcBA5AGAPAGAAASAAAACwAjAAEAAAADACYAAAAAAAsAKQABAAAAAwA2AAAAAABAADkAwBHURYw2 vgEeAHAAAQAAABsAAABSRTogSmZvcnVtOiBXaGF0IGhhcHBlbmVkPwAAAgFxAAEAAAAWAAAAAb42 jEW7YtFkaaJ8EdKLmiyh/8AAAAAAHgAeDAEAAAAFAAAAU01UUAAAAAAeAB8MAQAAABAAAABnb3Np QGNlbnRydW0uaXMAAwAGEDqsYK0DAAcQlQUAAB4ACBABAAAAZQAAAEZST006U1RFVkVOSFJPR0VS U1NNVFA6U0hST0dFUlNASU9ORVRORVRJVFdPVUxEQkVNT1JFTkVBUkxZUEVSRkVDVElGVEhFRlVM TEZVTkNJVE9OQUxJVFlPRlRIRVdJTjMyVkUAAAAAAgEJEAEAAAB2BQAAcgUAAIcJAABMWkZ1uT5F l/8ACgEPAhUCqAXrAoMAUALyCQIAY2gKwHNldDI3BgAGwwKDMgPFAgBwckJxEeJzdGVtAoMzdwLk BxMCgH0KgAjPCdk78RYPMjU1AoAKgQ2xC2BAbmcxMDM5Cv8xVjYMIRNQbxPQYwVARv0DYToK4Rnr GtYMggYAE9BSdgnwIEgH8WcEkHMAW1NNVFA6c2izA2AeIkBpAiARwC4fccJdCotsaTM2DfALVcsU UQvyYwBAID4bpyGVFRrWSQVAdwhgbGQg2GJlIARgFhAgH3AKwNBseSBwBJBmGxIGkOggdGgkcGYk IAMgJkDwbmNpdAIgB0Am0CUwym8l5FcLgDMyCochP98iTxrWHaARoB9RIAWgJCX5GtF2aQ2wJEAC EAXAJgKKVQMAeCtWLiAgCo+3KPwufyj8VxGABUB5CGD+IArAJHAWECWABRAZECXwDm8lwAQgJgJl eGNl7yZgCfAFQAWgbyVRMnArokkkYHR3CeEgSjLQbuckQDBlJ6VkbwPwM4EJ8PssoANgbgeANMEm oASBNvn8cy4wZTBlMlMkBx9wCYC/LNErsS1HAJANsDPSYTyh/m0DEArBCsA1QBkQE+A0srMD8CYA IFgwZTZRLwWx3z1WN0gLgC1zOb1JA6AIAf8kcAtgE8AykCTxPKBCkiVQPzUQNKAj8ASQJHABkGxr /zNyAaAIYAVANFAlUQdxAjBnBCA+kzBlWC82MAWgbv8fcBsgH1E9ETZhQuAmMD2i/QQgSSvVOKMT wDZSJgE8A/8lMDLiK2ElMDBlGtE9cACQexkQLkBTM8EFQADAJTBu/xrwJFJK0xWgM4EkYC0BJHD7 MqIkYGdA8TOxJhAKwSSSJz72RRM3SHBvBBBpYv8DECbQCJAEIED/RpRIEjKi20rTGtFiAaAlIWtM 4Afg8xGABCBtdRFwJIRRPDZS/zUQR4M2lwOROUVDYSPwMmH3HZEFwBGAcCVQBjEmASSx+0xxM+Fz CHBEYTPAWuEwkMEEEXF1aWNrJSAwZf9ZFzKjBUAmAgRgOFMRgB2gV1ICOU8wg08DoG0lMFDmQ0ix XnNkdQdAJFA1AP8FQFjhSMEDkUmRACAl82Cx3mU+oTjRXsgnYHIwZVIRekwLgHVBUEJCZTNiFXK7 JqA2JVguQC2ALQF0JqD/WTElIWCEM+FM4lQEN4AlYf8kIDBlWOFmkQMARNJZwCDA/2JAR4Qm4B4g Y3M+lGiWSCHxCfBqb3lUkSRwSCFMcf8r5DBlJGBlgTygCeA30Qhg/mc+wCYAcAQzwElLOsJKAv9I wGvxPSFVxWmLYLFZElch/1EwZ6JRtHGkAxBhgTNib2K/XnMHQFjhEYBJ0yxhaSyg/zSgHiBwsxGw UwcrsRrwY4L9AMFoC4AHkWHzN3BU1D0w/0hQOBAkUExxRQRnMEF9eqL+YQnCPoQyonGjJgAz4Vqy /0KRftEzgjJiO4JrsiRSCfCfWCE0cEgBNmB812FtTZHeb0SzStNVcy0BdwsRWyP/b7E2MB2QBvBe kSSTTtJ+4u5kOBBHZDOhb0FvXbQk8P8CMAdxMpN6sXaUA6A0WDYw/1IVWQFcAD7AB0AVoFixMqL/ PvYWEHdAJTAzsX1iTZF0Yf8l4jNxU6RiQkzierFjyTZS/1qET4lb4AeQNWJtw3HxY3P/cFERsCYw JPBnsBYQRgImYf9ZUyRhXoALcAtgbdJjyT74/3GUVTKM1D6TIMA9cAGQR4T7Y8lM4ko5vUxBckGR MUYB/zJqQuBEsy0CkEVsogIwNTH/R3VSETYzfN91WiTBXABvUv91lVRXWaRDYR9hV/UyokVi0xsg Ob0vR1FAaTBlFTECAKVgAAADABAQAAAAAAMAERAAAAAAQAAHMIDptqWJNr4BQAAIMIDptqWJNr4B HgA9AAEAAAAFAAAAUkU6IAAAAAChRQ== ------ =_NextPart_000_01BE368D.CEA71E60-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 2 16:04:42 1999 From: "J Tibollo" Subject: Jforum: Trying to access J.DLL from VB Date: Sun, 13 Dec 1998 14:55:00 -0500 boundary="----=_NextPart_000_000C_01BE26A8.8ED900E0" This is a multi-part message in MIME format. ------=_NextPart_000_000C_01BE26A8.8ED900E0 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I am trying to access j.DLL from VB 6. Here is the defclaration: Declare Function jDo Lib "D:\j.dll" (ByVal Msg As String) As Long Does anyone see anything wrong with the declaration? Does anyone have = the proper declarations for standard DLL access? The error message I get is: "Can't find DLLl entry point jDo in D:\j.dll" This error would suggest that that the function JDo is not in the dll... I got the name jDo from jdll.h ? Any idea of what the problem=20 might be? Regards, J. Tibollo ------=_NextPart_000_000C_01BE26A8.8ED900E0 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I am trying to access = j.DLL from VB=20 6.  Here is the defclaration:
 
Declare Function jDo = Lib=20 "D:\j.dll" (ByVal Msg As String) As Long
 
Does anyone see = anything wrong with=20 the declaration?  Does anyone have the
proper declarations = for =20 standard DLL access?
 
The error message I get = is:
 
"Can't find DLLl = entry point jDo=20 in D:\j.dll"
 
This error would = suggest that that=20 the function JDo is not in the dll...
I got the name jDo from = jdll.h=20 ?  Any idea of what the problem
might be?
 
Regards,
J. = Tibollo
------=_NextPart_000_000C_01BE26A8.8ED900E0-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 2 16:14:09 1999 From: "J Tibollo" Subject: Jforum: Accessing J.DLL from VB Date: Sun, 13 Dec 1998 15:06:08 -0500 boundary="----=_NextPart_000_001F_01BE26AA.1D1BA780" This is a multi-part message in MIME format. ------=_NextPart_000_001F_01BE26AA.1D1BA780 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I have found the problem with the declaration for jDo. I remembered = that function names are case sensitive when accessing 32 bit DLL's so I = tried all permutations. I found that JDo is the correct spelling. A = close examination of jdll.h shows: long _stdcall JDo(char* sentence); I guess I just didn't look closely enough... Thanks just the same... Regards, Joe ------=_NextPart_000_001F_01BE26AA.1D1BA780 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I have found the problem with the = declaration for=20 jDo.  I remembered that function names are case sensitive when = accessing 32=20 bit DLL's so I tried all permutations.  I found that JDo is the = correct=20 spelling.  A close examination of  jdll.h shows:
 
long _stdcall JDo(char* = sentence);
 
I guess I just didn't = look closely=20 enough...  Thanks just the same...
 
Regards,
Joe
------=_NextPart_000_001F_01BE26AA.1D1BA780-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 2 16:57:41 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Trying to access J.DLL from VB Date: Sat, 2 Jan 1999 21:49:50 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE369A.25C9D3C0" ------ =_NextPart_000_01BE369A.25C9D3C0 From: J Tibollo[SMTP:jtibollo@backassociates.com] > Declare Function jDo Lib "D:\j.dll" (ByVal Msg As String) As Long In Jole.bas you have: Public Function jdo(txt As String) As Integer 'execute sentence, return error code Dim v As Variant jdo = js.Do(txt) If jdo Then js.ErrorText jdo, v MsgBox v End If End Function Here is jDo is used in the jdll.ijs jdo=: 'jj.dll JDo i *c'"_ cd <^:(L. = 0:) NB. jdo send sentence to be executed NB. e.g. jdo 'ABC=: i.2 3 4' NB. The examples here assume you have copied J.DLL to JJ.DLL Used in cmd: jcmd=: 3 : 0 jdo 'JDAT=: ',y. jget 'JDAT' ) In the help there is refered to methods: Once the J servers are referenced, you can check the methods available, which are as follows. Break interrupt J execution Clear erases all definitions in J Do execute a J sentence ------ =_NextPart_000_01BE369A.25C9D3C0 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IgoVAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABACsAAABSRTogSmZv cnVtOiBUcnlpbmcgdG8gYWNjZXNzIEouRExMIGZyb20gVkIA0A0BBYADAA4AAADPBwEAAgAVADEA MgAGAFcBASCAAwAOAAAAzwcBAAIAFQAjADIABgBJAQEJgAEAIQAAADcwNjREMTYyN0NBMkQyMTE4 QjlBMkNBMUZGQzAwMDAwAA0HAQOQBgD0BAAAEgAAAAsAIwABAAAAAwAmAAAAAAALACkAAQAAAAMA NgAAAAAAQAA5AMDvb9KZNr4BHgBwAAEAAAArAAAAUkU6IEpmb3J1bTogVHJ5aW5nIHRvIGFjY2Vz cyBKLkRMTCBmcm9tIFZCAAACAXEAAQAAABYAAAABvjaZ0gJi0WRxonwR0ouaLKH/wAAAAAAeAB4M AQAAAAUAAABTTVRQAAAAAB4AHwwBAAAAEAAAAGdvc2lAY2VudHJ1bS5pcwADAAYQ+HD/wgMABxBw AgAAHgAIEAEAAABlAAAARlJPTTpKVElCT0xMT1NNVFA6SlRJQk9MTE9AQkFDS0FTU09DSUFURVND T01ERUNMQVJFRlVOQ1RJT05KRE9MSUIiRDpKRExMIihCWVZBTE1TR0FTU1RSSU5HKUFTTE9OR0lO SgAAAAACAQkQAQAAAGkDAABlAwAA3QUAAExaRnUxy14o/wAKAQ8CFQKoBesCgwBQAvIJAgBjaArA c2V0MjcGAAbDAoMyA8UCAHByQnER4nN0ZW0CgzN3AuQHEwKAfQqACM8J2TvxFg8yNTUCgAqBDbEL YEBuZzEwMzkK/zFWNgwhE1BvE9BjBUBGPQNhOgrhGesa1gyCIEoOIAdgBuEVoFtTTVSQUDpqdB2k QGIA0GRrYQQQb2MHMBPQcxIuBaBtXQqLbGkz/jYN8AtVFFEL8hrWCocha7JjAEAgPiMeGtZEBZCn C2AWEBtAdW4bIGkCIEAgakRvIEwdoCAAIkQ6XFxqLmSBHdAiIChCeVYHQNkF0HNnFLAGQXQFEBkQ 6iko0kwCIGcKjyN8KgXKSQOgSgbwZS4e8AQginkIYCARgHZlOioFSSoFUHUCYGljJllkfG8oDNAF QCjsLGAT0GejBJAqBSdleAWQdRPQjiARsDEBJoBlLCAWEP50CHADoASQA2AFwAWgDbDlKgVEB3Ag dijSKGAHIecCMCoFL5EgPSbgH8AnAJUvwikr9mY141RoCfDXKgU4cDZRRTOCVDHgBUAbL5Ey4HY4 FyihQm948Tm3RW5kN1E66SZmLbx9KgVIBJAmQAQAJuM+gXXnEbA7cAuAIHQ34C+BHdBcLmk2UC28 L5E9G5AnDmonwx1gPsIgKmMnDCJfM8A7cDxeOijkTC42ITA6NuYgnysv8ypPI7hOQkNgNfJIgzJh bztwMmY/kCcQYiZAMeVkd0YlSBIswGdDYDiBNgEnSEFCQ0FxaS4R4DN4IDQnSqlIgzfRShFhvm0L UAeRN+AmMR8xdQeAWy0XM8FwCJA7cEo2cExaTEmySlCDLbxVPzVj9G1kLa1qUtFBcUywG5AnCnZL w0IgQVRBcix5/i41hjEwBUBVY0zmNuYr+HM/ojfgbHA/kj5UFhBmvz5BO3BJwQeAP6AEcHMtrd5P SYM/sR1wEbByLYARoG9PACYxWfQysWQy4C0iY3cDkRFwBZBrP5NapU8Adk8LcAtgAmAy0XdoLtBo 710jLPECEB3Rdx/APU1GJfJCFhBhax0jC4AT0DOA3nUFMR1wMeQ8uEMssArA/x0jBJAfMAeRB0AD IA2xC4C+aSaiBCA/cR1wNBZvZeS9MfVhXIMyhEYlFTEAasAAAAADABAQAAAAAAMAERAAAAAAQAAH MKAZ392XNr4BQAAIMKAZ392XNr4BHgA9AAEAAAAFAAAAUkU6IAAAAABicw== ------ =_NextPart_000_01BE369A.25C9D3C0-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 2 17:12:00 1999 From: "J Tibollo" Subject: Re: Jforum: Trying to access J.DLL from VB Date: Sun, 13 Dec 1998 16:02:56 -0500 charset="iso-8859-1" Bjorn: Thanks for taking the time to respond to my note. I think I have a good handle on the problem. I am trying to see if the "standard" way of calling DLL's is easier than the OLE way. With OLE you have to register J.DLL. When I register J.DLL with JReg.EXE it displays a dialog box. Do you know of anyway to use JReg.exe to quietly register the DLL? Thanks, Regards, Joe PS. So far I have the following declarations: Declare Function JDo Lib "j.dll" (ByVal Msg As String) As Long ' Use with numbers Declare Function JGet Lib "j.dll" (ByVal jName As String, result As Variant) As Long Declare Function JSet Lib "j.dll" (ByVal jName As String, vbvar As Variant) As Long Declare Function JErrorText Lib "j.dll" (ByVal resultcode As Long, vbvar As Variant) As Long ' Use with Strings Declare Function JGetB Lib "j.dll" (ByVal jName As String, result As Variant) As Long Declare Function JSetB Lib "j.dll" (ByVal jName As String, vbvar As Variant) As Long Declare Function JErrorTextB Lib "j.dll" (ByVal resultcode As Long, vbvar As Variant) As Long ' Miscellaneous Declare Function JClear Lib "j.dll" () As Long Declare Function JBreak Lib "j.dll" () As Long Declare Function JIsBusy Lib "j.dll" () As Long /Joe -----Original Message----- From: Bjorn G. Helgason Date: Saturday, January 02, 1999 4:45 PM Subject: RE: Jforum: Trying to access J.DLL from VB >From: J Tibollo[SMTP:jtibollo@backassociates.com] > >> Declare Function jDo Lib "D:\j.dll" (ByVal Msg As String) As Long > >In Jole.bas you have: > >Public Function jdo(txt As String) As Integer >'execute sentence, return error code >Dim v As Variant >jdo = js.Do(txt) >If jdo Then > js.ErrorText jdo, v > MsgBox v >End If >End Function > > >Here is jDo is used in the jdll.ijs > >jdo=: 'jj.dll JDo i *c'"_ cd <^:(L. = 0:) > >NB. jdo send sentence to be executed >NB. e.g. jdo 'ABC=: i.2 3 4' >NB. The examples here assume you have copied J.DLL to JJ.DLL > >Used in cmd: > >jcmd=: 3 : 0 >jdo 'JDAT=: ',y. >jget 'JDAT' >) > >In the help there is refered to methods: > >Once the J servers are referenced, you can check the methods available, which are as follows. > > >Break interrupt J execution >Clear erases all definitions in J >Do execute a J sentence > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 2 21:24:31 1999 Date: Sat, 02 Jan 1999 20:09:12 -0600 From: Steven H Rogers Organization: S H Rogers & Associates Subject: Re: Jforum: What happened? References: <01BE368D.CDCCEB00@geisli-256.centrum.is> Bjorn G. Helgason wrote: > > In Rome last year some people were talking about experiments with > X/J connections and as far as I could understand then they are very > promising. So it may not be very long before you begin to hear more > about Windowing possibilities in Unix. > > X as you very probably know has much more possibilities and options > than Windows so whatever happens there it is sure to surpass quickly > whatever you at the moment have in Windows. > > On my PC I have dual boot so I can start the PC either in Windows or > in Linux. In Linux I can run J and X. Unfortunately my PC is not very powerful > so running applications together with X is not as enjoyable as it could > be. I see enough though to understand that when I get a more powerful > PC what opportunities that will bring. I have also had the privilege to use > X on other machines so I do know a fair bit about X. > > I do agree with you that this is something that needs to be enhanced and > I am looking very much forward to see J evolve more in this direction too. > > In the meantime you do have an excellent J in Unix which allows you > aready to do a lot of things you can not do in Windows and it is more > questionable whether those features will ever be available in Windows > and that has to do with limitations in Windows not J. > > So I guess what you are asking for is more X interactions in J and > I do agree that will be nice. It will probably happen sooner than you expect. > > /Gosi > > ------------------------------------------------------------------------ I suppose that I'm a little greedy, wanting the best of both the MS and Unix versions of J. In addition to exploiting X Windows with J, I'd like to see integration between J and Java. The ability to call J from a shell script is a powerful feature and I can see building applications with the the GUI done in TCL or Python, and numerically intensive parts done in J, perhaps using XML to exchange data between the interface and compute engine. -- Steve ----------------------- Steven H. Rogers, Ph.D. Systems Engineer shrogers@ionet.net -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sun Jan 3 03:50:50 1999 Date: Sun, 03 Jan 1999 09:37:41 +0100 From: "david alis" Subject: Jforum: Editors; Books & Windows GUI References: <01BE368D.CDCCEB00@geisli-256.centrum.is> Re Bjorn G. Helgason: The " Edit|Configure..." main menu option does not provide for the use of a third party text editor against scripts. Is this in fact already possible but not yet documented? Or is this something for the next release? Speaking of which.... have I missed a forum item from ISI about their hopes for 1999 ... technical developments in the pipeline .. etc? Re:Anssi Seppala: None of the topics in the Jeffrey Richter book (Advanced Windows Programming) deals with user-interface issues that Anssi mention. What books would Eric or Chris recommend to help understand their thinking when they implemented the Windows GUI for J? Bjorn G. Helgason wrote: > What you are refering to is the excellent cooperation between J and > the Windowing environment under the Windows. Anssi Seppala wrote: > Thanks Chris, > Finally the problem is solved. I never expected that this could be a form > "owner" parameter. Now I have removed all the loops and wd'wait' statements. > > Anssi > > PS The benefit of this mistake was however, that I now also understand the > eventhandler mechanism. > > At 07:59 1.1.1999 -0500, you wrote: > >The "owner" parameter in the pc command, in this case: > > > > pc a dialog owner; > > > >See Help|User|Form Editor|Parent. > > > >Chris > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sun Jan 3 05:44:47 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Editors; Books & Windows GUI Date: Sun, 3 Jan 1999 10:39:56 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE3705.9C992940" ------ =_NextPart_000_01BE3705.9C992940 From: david alis[SMTP:dalis@balcab.ch] > The " Edit|Configure..." main menu option does not provide for the use > of a third party text editor against scripts. Is this in fact already possible > but not yet documented? Scripts are and have always been straight textfiles and you can edit them as much as you like with any texteditor you prefer. I frequently use Notepad, Emacs or Vi for minor changes and also to use the methods a features available in those editors. I prefer to run my applications as runtime and have done so for years. There is no need to change the scripts to encoded or locked forms to run them in runtime. It is of course close to impossible to do any major changes directly without the devolopment environment. You only need to have one tiny little mistake somewhere and the application stops. For those eventualities I always run the applications with status and/or logs to know how far the application went before failing and sprinkle the code with asserts and heavy use of try and catch. By aiming at running the application without the development environment forces one into more disiplined use of tools and utilities. In a way the devolopment environment is a big debug tool. I would like the debug to allow me to set breakpoints and be able to step through my application from breakpoints. > Or is this something for the next release? Speaking of > which.... have I missed a forum item from ISI about their hopes for > 1999 ... technical developments in the pipeline .. etc? I thought you knew by now that ISI never tell about things to come. Come to think of it they hardly mention the things that are already there. 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Helgason" Subject: Jforum: J man page - Linux - stdin, stdout, echo Date: Sun, 3 Jan 1999 20:22:56 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE3757.12F6D000" ------ =_NextPart_000_01BE3757.12F6D000 Reading through the material that comes with J402 Linux I found in one place some release notes and there stdin,stdout, echo and a few others are mentioned. They are not present when I start J. They are however in the script shell.ijs which is called quite smartly in the samplescript !!! So why not put them in stdlib.ijs so that they will be present when J is started ? I can not find anywhere help with the vocabulary nor the foreign conjunctions. Could we not put at least these two major items into the man pages ? They are not very big and the man pages is probably a good place to display them. I also noticed that the labs directory is not empty ? Is it possible to use labs in Linux ? If so how ? (same question for Tutorials ? Demos ?) /Gosi ------ =_NextPart_000_01BE3757.12F6D000 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IiEUAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADAFAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAABR80AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABAC4AAABKIG1hbiBw YWdlICAtICBMaW51eCAgICAtIHN0ZGluLCBzdGRvdXQsIGVjaG8A6Q0BBYADAA4AAADPBwEAAwAU ABYAOAAAADwBASCAAwAOAAAAzwcBAAMAFAAWADgAAAA8AQEJgAEAIQAAADg0MzI2QTJEM0VBM0Qy MTE4QjlBMkNBMUZGQzAwMDAwABwHAQOQBgBwBAAAEgAAAAsAIwABAAAAAwAmAAAAAAALACkAAQAA AAMANgAAAAAAQAA5AOC1edlWN74BHgBwAAEAAAApAAAAUkU6IEpmb3J1bTogRWRpdG9yczsgQm9v a3MgJiBXaW5kb3dzIEdVSQAAAAACAXEAAQAAABsAAAABvjcFZz19HGrwovQR0ouaLKH/wAAAABFn BXEAHgAeDAEAAAAFAAAAU01UUAAAAAAeAB8MAQAAABAAAABnb3NpQGNlbnRydW0uaXMAAwAGEOi9 WfEDAAcQVQIAAB4ACBABAAAAZQAAAFJFQURJTkdUSFJPVUdIVEhFTUFURVJJQUxUSEFUQ09NRVNX SVRISjQwMkxJTlVYSUZPVU5ESU5PTkVQTEFDRVNPTUVSRUxFQVNFTk9URVNBTkRUSEVSRVNURElO LFNURE9VVCwAAAAAAgEJEAEAAADmAgAA4gIAAFgEAABMWkZ1IUtLpf8ACgEPAhUCqAXrAoMAUALy CQIAY2gKwHNldDI3BgAGwwKDMgPFAgBwckJxEeJzdGVtAoMzdwLkBxMCgH0KgAjPCdk78RYPMjU1 AoAKgQ2xC2DAbmcxMDM5CvsUUX0L8SAKhxnqFXAAQAfwZYRhZAuAZyB0aANgyHVnaBzBZSAAwBPQ 9wciHMEdoCAFoAeCA/Ac0FAgSjQwEeBMC4B1IHggIEkgAhB1bnxkIAuAGqYCIB1wC1Fj1R1wcx6B IBYQbBxgEbD4IG5vE9AEIABwIEAdUWsWECGQdByBLCNxCGB0ZCwgBZBobyLDCoVh/x/wB9EigCMh IrEjQQeAAjBCaSEBZC4gVB1gef8mEyJxITAWEBGwAjAewB1g3wOgH+ATwArABUBKJvAKheMnFyRw d2V2BJAgUh1SBQT1cx1gbGwuaWq5HrFoaRFwIFAEIGMHQFMiECBAcXUe4GUKhXObAMAAIGwnQCrm YW0LUPsHkAUEIS/gBgAkgChgJ0A3J6MkEB1CbSBSI3Fsaf5iLBIttiSAHiMdUSdAA/DZK/AgYiEh J/pKLLIo0/0tMT8KhQqFH+As8AOgJ6LuZguAIEAAcHkoYSoyIgAmcB7EHVJ2byzwYnV9C2ByMHIF wB1SAhAWEGmmZyB3BaBuaiAgYyaS9nMm8AhRbCBAKoAwhx5BZyISMPMiQXR3JIAAwGrbBbEtgW0y JguAdDKyHXLrA6AKsGcHkT8nDCqhJ0B+YjpQIsY/yD7WBCATUG/OYgGgLnElUGdvBHAhNbs/YRyA cwtRJ0AxEi41rv8HQDKhInEsgC0xMtY9EAGg/wQgHIAWEDtgBbAugQQgJ6LvE+AFMCdANZZJBCAe 4CEw3m8EEDHQIhBE8nUiQUhj5yBhH3RAcElmMpIqYTWH/igvER1wLWAHkCaSOgInAO8kEAWwBzFA UkQT4EsQNYDSKTWsL0dLEGkKhRUxAgBScAAAAwAQEAAAAAADABEQAAAAAEAABzAA60wDSze+AUAA CDDgH5LZVje+AR4APQABAAAAAQAAAAAAAABpPA== ------ =_NextPart_000_01BE3757.12F6D000-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sun Jan 3 15:59:49 1999 Date: Sun, 03 Jan 1999 22:32:28 +0200 From: Anssi Seppala Subject: Re: Jforum: Editors; Books & Windows GUI In-Reply-To: <368F2C55.3696FE5E@balcab.ch> References: <01BE368D.CDCCEB00@geisli-256.centrum.is> I have learned all my Windows programming by using the tools provided. The J user manual gives good ideas to start, but I have also missed good references. Instead of thick books I wish a library of many short examples of J GUI applications. The OO system gives here plenty of possibilities to share code. We only need a good quide classifying and indexing examples so that you easily find what you need. Anssi -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sun Jan 3 20:30:15 1999 From: "David Vincent-Jones" Subject: Jforum: Editors Date: Sun, 3 Jan 1999 17:08:42 -0800 When I am debugging I am often frustrated trying to count to a specific line number in a long function. Is there any way to display line numbers during the debug process; it would make the application of stops etc. easier to apply. David V-J -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sun Jan 3 20:38:22 1999 From: "David Vincent-Jones" Subject: Jforum: Operating Systems Date: Sun, 3 Jan 1999 17:13:58 -0800 Are there significant advantages to be gained from NT or Linux over Win'98 in running J. Given the same amount of memory etc. is processing speed much the same? David V-J -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 4 00:32:14 1999 From: "John D. Baker" Subject: Re: Jforum: Operating Systems Date: Mon, 4 Jan 1999 00:18:05 -0500 charset="iso-8859-1" David, For the Last week I have been running J under NT after running it under 95 for years. I have enough experience with how J behaves under 95 to categorically state that it works better under NT for a number of reasons: 1) J is developed on NT machines. All other versions are ports. With rare exceptions something is allways lost in porting. 2) The NT paging system is just a lot better than 95's. Once you start crunching very large arrays you notice the improvement right away. 3) The J programming environment is more useful under NT primarily because the limitations on the size of text windows is far higher. Under 95 I often had to break up scripts into one or more files because the J editor cannot handle large scripts under 95. With NT the limit is much higher. So high that if you hit it your doing something wrong! 4) Some nagging instabilities in the J's menu system do not appear (at least so for) under NT. 5) Running multiple J tasks is very smooth. Last night I ran four J's all executing the OpenGL slide show. On a 400 mhz machine with a few hundred megs of ram even this torture test is smooth. 6) ODBC is much smoother. I've done a lot of ODBC'ing with J and many of of the problems I experienced go away under NT. Yes the OS matters. John Baker bakerjd@kos.net -----Original Message----- From: David Vincent-Jones Date: Sunday, January 03, 1999 8:26 PM Subject: Jforum: Operating Systems >Are there significant advantages to be gained from NT or Linux over Win'98 >in running J. >Given the same amount of memory etc. is processing speed much the same? > >David V-J > > > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 4 00:59:30 1999 From: "John D. Baker" Subject: Re: Jforum: Editors Date: Mon, 4 Jan 1999 00:47:39 -0500 charset="iso-8859-1" >When I am debugging I am often frustrated trying to count to a specific line >number in a long function. >Is there any way to display line numbers during the debug process; it would >make the application of stops etc. easier to apply. The solution to this problem is to forget about line numbers and set stops based on strings in the code. A few years ago I wrote a few stop setting verbs that do this. Take a look at the the attached verb (stopat) NB. J script begins require 'debug' stopat =: 3 : 0 : NB. Sets stops on J code. Stops cannot be set on all NB. comment or blank lines as they are not executed. NB. NB. 'verb' stopat 'thisstr' NB. if. 1 <# jc99 =. 0 decomm jcr x. do. NB. multiple line explicit definition b99 =.(':' = 0{"1 jc99) *. ' ' *./"1 . = }."1 jc99 NB. drop "n : 0" header and closing ")" b99 =. }:@}. b99 [ jc99 =. }:@}. jc99 ln99 =. b99 i. 1 NB. monad/dyad line numbers handles null cases ln99 =. (i. ln99) ; i. 0 >. (#b99) - >:ln99 null99 =. 2 _2 {~ 1 e. b99 NB. delete : monad/dyad delimiter jc99 =. jc99 #~ -. b99 NB. monad/dyad string match masks - all blank lines excluded b99 =. (-. *./"1 ' ' = jc99) *. +./"1 ($ jc99) $ y. E. , jc99 b99 =. null99 {. (0 = ; ln99) <;.1 b99 NB. select matching lines from monad/dyad and set stops dbsq@dbss x. , ' ' , ; 2&A. ' : ' ; ":&.> b99 #&.> ln99 else. NB. tacit or single line explicit dbsq@dbss x. , ' 0 : 0 ' end. ) NB. remove comments from J code decomm =: 3 : 0 1 decomm y. : NB. mask of unquoted comment starts c =. ($y.)$'NB.' E. ,y. c =. +./\"1 c > ~:/\"1 y. e. '''' y. =. ,y. NB. blank out comments y. =. ' ' ((,c)# i. # y.)} y. y. =. y. $~ $c NB. remove blank lines - default if. x. do. y. #~ y. +./ . ~: ' ' end. ) NB. returns a char table representation of a j word jcr =: [: > [: <;._1 (10{a.)"_ , [: 5!:5 < -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 4 01:24:01 1999 Date: Mon, 04 Jan 1999 07:13:07 +0100 From: "david alis" Subject: Re: Jforum: Editors; Books & Windows GUI References: <01BE368D.CDCCEB00@geisli-256.centrum.is> <4.1.19990103222626.009d8820@pop.kolumbus.fi> Anssi Seppala wrote: > I have learned all my Windows programming by using the tools provided. The > J user manual gives good ideas to start, but I have also missed good > references. > > Instead of thick books I wish a library of many short examples of J GUI > applications. The OO system gives here plenty of possibilities to share > code. We only need a good quide classifying and indexing examples so that > you easily find what you need. > > Anssi I dont really want thick books either. But it is a fact that formulating good descriptions of underlying ideas, or setting out basic concepts clearly and simply is extremely difficult. It would be helpful if Eric et al could pass on any good references they had. There are, after all, a lot of thick unhelpful books around. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 4 02:19:14 1999 Date: Mon, 04 Jan 1999 08:06:32 +0100 From: "david alis" Subject: Re: Jforum: Editors; Books & Windows GUI References: <01BE3705.9C918820@geisli-266.centrum.is> (best viewed with fixed pitch) Bjorn G. Helgason wrote: > Scripts are and have always been straight textfiles and you can edit them > as much as you like with any texteditor you prefer. I frequently use > Notepad, Emacs or Vi for minor changes and also to use the methods > a features available in those editors. But the development environment tightly couples the ijx and ijs windows; ctl-w/ctl-e immediately run the active ijs window or the highlighted text.... being able to do this using a more powerful editor than ships with the session manager would enhance both J and such editors simultaneously. > I would like the debug > to allow me to set breakpoints and be able to step through my application > from breakpoints. If you mean that you think that tracing/debuging is difficult, then I agree with you. Chris posted the 'subs' expression on 23rd December.. subs=. [. & ((((e.&) ((# i.@#)@)) (@])) }) (it's been shipped with the scripts for years - a real classic, albeit the most inpenetrable bit of code around). Switching on debug to trace its execution really is no help at all.... _ _ (13!:16)_ NB. switch on the trace q=. 100 subs 200 NB. generate verb q that will replace NB. occurrences of 200 with 100. --------------- 4 conj ------- 100 subs 200 ------------------------------ 100 [. & ((((e.&) ((# i.@#)@)) (@])) }) 200 100&((# i.@#)@(e.&200)@]}) ============================== 100&((# i.@#)@(e.&200)@]}) --------------- 8 is --------- q =. 100&((# i.@#)@(e.&200)@]}) ============================== Even running the new verb, q, with trace isnt all that helpful. q 200 2 3 4 193 200 3 --------------- 0 monad ------ q 200 2 3 4 193 200 3 ------------------------------ 100&((# i.@#)@(e.&200)@]}) 200 2 3 4 193 200 3 100 2 3 4 193 100 3 ============================== 100 2 3 4 193 100 3 ============================== 100 2 3 4 193 100 3 Incidentally, the tree representation of subs gives more support for its analysis than do either of the other display forms. (But you really do need the J font for this to help) -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 4 06:10:27 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Editors; Books & Windows GUI Date: Mon, 4 Jan 1999 09:28:23 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE37D1.EDAEC8E0" ------ =_NextPart_000_01BE37D1.EDAEC8E0 From: david alis[SMTP:dalis@balcab.ch] > Bjorn G. Helgason wrote: > > Scripts are and have always been straight textfiles and you can edit > > them as much as you like with any texteditor you prefer. I frequently > > use Notepad, Emacs or Vi for minor changes and also to use the > > methods a features available in those editors. > But the development environment tightly couples the ijx and ijs windows; > ctl-w/ctl-e immediately run the active ijs window or the highlighted text.... > being able to do this using a more powerful editor than ships with the > session manager would enhance both J and such editors > simultaneously. If you are asking for a direct coupling from an editor to J execution then you would have to put some macro or other logic in your favorite editor to call on J to execute it for you either partly or the whole script. I have heard people doing it with Emacs but I am fairly sure it will be a bit difficult with Notepad. You can surely do it with Excel so I do not see why you should not be able to do it with Word. On way to call J this way is through OLE another to call on the DLL or you can call on the runtime environment. I usually use J straight for most things in Windows and outside editors on running systems to adjust things and to make minor changes. 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WinNT demands more resources than Win95. Win98 is more resource intensive thant Win95 so the difference may be less. Linux outperforms WinNT for most applications on the same hardware and runs well on most anything that runs Win95 well. Linux is more stable than either WinNT or Win9X. A caveat is that you have to be careful with hardware compatibility for both WinNt and Linux. This can be especially troublesome with nameless, generic components. The Linux J distribution doesn't (yet) have a nice session manager or interface to the windowing system like the WinXX versions. This is a bit disappointing since the Linux version of Mathematica has such things. -- Steve ----------------------- Steven H. Rogers, Ph.D. Systems Engineer shrogers@ionet.net -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 4 11:48:27 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Mac runtime for Pousse? Date: Mon, 4 Jan 1999 16:30:06 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE3801.43FF9A60" ------ =_NextPart_000_01BE3801.43FF9A60 From: Brian M. Schott[SMTP:dscbms@panther.Gsu.EDU] > On Fri, 1 Jan 1999, Bjorn G. Helgason wrote: > +The Macintosh doesn't have command line parameters so there > +is no /rt parameter. If J is started by double-clicking a > +script file with a suffix of .ijr, then J is started as a > +runtime application. The ijr file does not have to be an > +encoded ijr file." > +Therefore I conclude that my Windows solution for pousse > +can be made by just renaming pusl.ijs to pusl.ijr on the > +Mac and it would run by double-clicking on that file on the > +Mac. > I doubt that simply renaming an .ijs file to an .ijr > file will make the resulting script into a runtime file. I tested .ijr this morning and it works as promised. No /rt needed I was going to download J402 but discovered that it is not yet available for the Mac so I could not test Pousse but I am now sure it will work as described earlier. /Gosi ------ =_NextPart_000_01BE3801.43FF9A60 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IjIQAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABACQAAABSRTogSmZv cnVtOiBNYWMgcnVudGltZSBmb3IgUG91c3NlPwA4DAEFgAMADgAAAM8HAQAEABAAHgAGAAEAEAEB IIADAA4AAADPBwEABAAQABsAAQABAAgBAQmAAQAhAAAANEJBNUM1QUVGMUEzRDIxMThCOUEyQ0Ex RkZDMDAwMDAARwcBA5AGAEgFAAASAAAACwAjAAEAAAADACYAAAAAAAsAKQABAAAAAwA2AAAAAABA ADkAgBWmfP83vgEeAHAAAQAAACQAAABSRTogSmZvcnVtOiBNYWMgcnVudGltZSBmb3IgUG91c3Nl PwACAXEAAQAAABYAAAABvjf/fEmuxaVMo/ER0ouaLKH/wAAAAAAeAB4MAQAAAAUAAABTTVRQAAAA AB4AHwwBAAAAEAAAAGdvc2lAY2VudHJ1bS5pcwADAAYQvggPXAMABxC+AgAAHgAIEAEAAABlAAAA RlJPTTpCUklBTk1TQ0hPVFRTTVRQOkRTQ0JNU0BQQU5USEVSR1NVRURVT05GUkksMUpBTjE5OTks QkpPUk5HSEVMR0FTT05XUk9URTorVEhFTUFDSU5UT1NIRE9FU05USEFWRQAAAAACAQkQAQAAAMUD AADBAwAAigcAAExaRnUKiz4w/wAKAQ8CFQKoBesCgwBQAvIJAgBjaArAc2V0MjcGAAbDAoMyA8UC AHByQnER4nN0ZW0CgzN3AuQHEwKAfQqACM8J2TvxFg8yNTUCgAqBDbELYMBuZzEwMzkK9AzQeDE0 NA3wC1UUUQvyYwUAQCAKi2xpMTgwOQLRaS0Z8xncC8IxNqsMIRNQbxPQYwVARgNhnjoK4R2rHpYM giBCByE5A6BNLgYAEXAesHRbQFNNVFA6ZATwYlhtc0AKsAIwaASQLgBHc3UuRURVXdkbbTM2Gi8b MT4fZxq1jR6WTwOgHxBpLCAbQDJKA5ExOSjAKDBCagsFsAOgRyGgSGVsZ6RhcwIgIHceojoKh+cl PyZPHpYrVCMwBdAA0AELgHRvc2ggZG/ZB5BuJwVAEYB2LfAFoNJtA4FkIBwwbi3wCrGuYQeAE9AR oCAp8CAjIi5lKp8rryy/KwQAIG6dMRAvACAwSCGgSWYoYD4gNMETwArAE9Av4GJ5RS6hdQJgZS1j HDBj4msLgGcgYTGPMp8zr94rBPUcoDeAKiBpIyA4MIUw8HUN0Gl4IG82IPAuaWpyKDAjIQOgNkuf KeA4PzlPOl8toXJ1AjDbB3E/AHALUDfQYUKQAiD/IaAt0j1xO/QusjThLxUuYLs3AELBbj8vQD9B TysJ8M8FoA2wL+BD9i4iG1ZF7/9G/0gPLcIWEAIQFhA2AC9xn0kwCkANsDEhQ0AgbTcg9lcLgC6w dzDiCkBDUjvw/QWxcAhgBBAxf0vPTN8tsL9DMAOgRZEAwE8hNxFqUUBbBUAWEG4wgDgCcFFAbP89 YQQgRWFWlQXAKgEjIVGPe1KfU68rLhFFsUmBBUB3/QhgbC/gQmE3DzgRV+NPcf88A1fvWP9aD1sY IaBKXSDy/1+vYL8nOE6gN0IFQE9TAJD+bQtQXOBWBwORVtM8A0VhfWiEciP/JQ9k/ycpPAVsewMg AMBrTzIt8BYQI4Bs/0KQOBEE9S5CPJFCZknjCo//Go9xgk6gE9ATwS/gV5MjIJ80wQRgBKBoRFvl cms+8a8EIB6RVkARsGQhoE41BF8wIAmACYBKXE6gdz7hZ+5vOAJFYVABbhWgVUAoYPsaEBHgYlCA LqAEAAWgL1DfFhFPRFwBNMMFQHkRwD8A/nYLcAtgN3FxVVDibsJbgp8xAU6iXFJE0nPSIFBRM/96 c06gMIA04QfgI4BOcVwC/24yddJxVT7hDbAE8kWQL+CeZQrAHDAjQUpcL0cucBZpcVUVMQCFkAAA AAMAEBAAAAAAAwAREAAAAABAAAcwgAyMDv83vgFAAAgwgAyMDv83vgEeAD0AAQAAAAUAAABSRTog AAAAADyW ------ =_NextPart_000_01BE3801.43FF9A60-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 4 12:16:19 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Operating Systems Date: Mon, 4 Jan 1999 16:41:07 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE3801.48A5C9E0" ------ =_NextPart_000_01BE3801.48A5C9E0 From: David Vincent-Jones[SMTP:geomap@galaxynet.com] > Are there significant advantages to be gained from NT or Linux over > Win'98 in running J. > Given the same amount of memory etc. is processing speed much the > same? There is no question about NT being better on memory management than W95 and I have heard that W98 is not much better than W95. NTFS in NT is also far superior to FAT but I do not know much about FAT32 that is in W98 I have heard. Linux is far superior to NT in most respects. X in Linux is also far superior to the Windows in NT. J can do all kinds of neat things in Linux that are not possible in NT. The user interface for J under Linux as distributed lacks most of the nice features it has in NT though. Once J gets X connections then I am sure Linux will become superior in all respects. /Gosi ------ =_NextPart_000_01BE3801.48A5C9E0 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IjkQAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABAB4AAABSRTogSmZv cnVtOiBPcGVyYXRpbmcgU3lzdGVtcwB/CgEFgAMADgAAAM8HAQAEABAAKQAHAAEAHAEBIIADAA4A AADPBwEABAAQAB4AHAABACYBAQmAAQAhAAAANEZBNUM1QUVGMUEzRDIxMThCOUEyQ0ExRkZDMDAw MDAASwcBA5AGAOAEAAASAAAACwAjAAEAAAADACYAAAAAAAsAKQABAAAAAwA2AAAAAABAADkAYM8C BwE4vgEeAHAAAQAAAB4AAABSRTogSmZvcnVtOiBPcGVyYXRpbmcgU3lzdGVtcwAAAAIBcQABAAAA FgAAAAG+OAEG+a7FpVCj8RHSi5osof/AAAAAAB4AHgwBAAAABQAAAFNNVFAAAAAAHgAfDAEAAAAQ AAAAZ29zaUBjZW50cnVtLmlzAAMABhCyWuuzAwAHEIUCAAAeAAgQAQAAAGUAAABGUk9NOkRBVklE VklOQ0VOVC1KT05FU1NNVFA6R0VPTUFQQEdBTEFYWU5FVENPTUFSRVRIRVJFU0lHTklGSUNBTlRB RFZBTlRBR0VTVE9CRUdBSU5FREZST01OVE9STElOVVhPAAAAAAIBCRABAAAAYgMAAF4DAADqBQAA TFpGdYA4kQP/AAoBDwIVAqgF6wKDAFAC8gkCAGNoCsBzZXQyNwYABsMCgzIDxQIAcHJCcRHic3Rl bQKDM3cC5AcTAoB9CoAIzwnZO/EWDzI1NQKACoENsQtgwG5nMTAzOQr0DNB4MTQ0DfALVRRRC/Jj BQBAIAqLbGkxODA5AtFpLRnzGdwLwjE2qwwhE1BvE9BjBUBGA2EeOgrhHaselgyCIERhoHZpZCBW C4BjCfAYdC1KAiAHkFtTTSBUUDpnZQNxcEAiZwdAYXh5IjB0LtkFoG1dCocaXz4kfh6W4QcQZSB0 aASQJ2AAkDZnAwAcoGMAcAVAYWQadihhYSLABCB0byDeYidgIzALgAmAIANSB7CUVCAFsUwLgHV4 KpC+dgSQG1gkryW/HpZXC4D4Jzk4K/8bQC0/HqULgDAgcnVuAwAZECBKci4bbTM2Gi8s/yaZR95p K0ADoCeBJ9BhB4AokMcEYDIABUBvZiAHgARgyHJ5IBHAYy4xsAQgzx6RIcAEEDIyc3AJ4CFw/G11 EXAncjKfM680vyaZ3TcDPwqPGo8+8lQnkzjB2m4pYHEKUBPAaQIgKJD9BuB1BUAqcSmAMjIpgAJA /ytRQkE4BQOBKQEHgChxJ4CjAHA+xVc5NSiQbiFw3EkgEYArQEZgZQsRRRL/LpEu8EF0BUA6A0Nl RSJFwvsyhipwRgXwMcEqcTjBB0DKcylgZgrBc3U5sAUQcwWxKVFGQULhQqFGUGT7KWBH4mtBsAfg OgNCcz7F/UwRMxHgRyM4wTHBR3JGWn8yhj7FKtQ4wUseSmJD4W9fE8Ax4AeQObAe4HM4oFj/MbJR h0rPPsUpUTbSLrFMsM53T0MqcDigSiAoUUyi+wdAAyBrV0EEIDfRIjBHQf8ngDIxT0Mq1EcjCsAn YEfi/T7FcFOAAJACYEFhV8RBIfwgdRGwBcALgEORSxAhwL8qEAWxWCAyAASBKsVhBCB6ZAQAdAUQ TFEp8QtgY/5rBCBTcz7FN9E20gMAXhL3WZEIcAeRaQVAEYBXlSdx6QhgZ2g4oE8hsVgRIsD/VCBU UQWgMhAe0UIxKTEnkP9FVkZQNyBLQSdRKtQD8FjB/ymAI9EnwUtmMcFYslPHUKy0L0dTgGk+xRUx AGuQAAADABAQAAAAAAMAERAAAAAAQAAHMIANAIr/N74BQAAIMIANAIr/N74BHgA9AAEAAAAFAAAA UkU6IAAAAAA0cg== ------ =_NextPart_000_01BE3801.48A5C9E0-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 4 13:43:11 1999 From: "David Vincent-Jones" Subject: Re: Jforum: Operating Systems Date: Mon, 4 Jan 1999 10:17:19 -0800 John; Thanks. I will, due to my nomadic life, be switching this month to a 300 mh. notebook; obviously not an optimal solution but I can bang a mess of memory into it. I hope that when Win 2000 is shipped it will not have the Win '95/'98 overhead. David -----Original Message----- From: John D. Baker Date: January 3, 1999 9:34 PM Subject: Re: Jforum: Operating Systems >David, > >For the Last week I have been running J under NT after running >it under 95 for years. I have enough experience with how J behaves >under 95 to categorically state that it works better under NT for a number >of reasons: > >1) J is developed on NT machines. All other versions are ports. With rare > exceptions something is allways lost in porting. > >2) The NT paging system is just a lot better than 95's. Once you > start crunching very large arrays you notice the improvement right >away. > >3) The J programming environment is more useful under NT primarily because >the > limitations on the size of text windows is far higher. Under 95 I >often had to > break up scripts into one or more files because the J editor cannot >handle > large scripts under 95. With NT the limit is much higher. So high that >if > you hit it your doing something wrong! > >4) Some nagging instabilities in the J's menu system do not appear (at least > so for) under NT. > >5) Running multiple J tasks is very smooth. Last night I ran four J's all >executing the > OpenGL slide show. On a 400 mhz machine with a few hundred megs of > ram even this torture test is smooth. > >6) ODBC is much smoother. I've done a lot of ODBC'ing with J and many of > of the problems I experienced go away under NT. > >Yes the OS matters. >John Baker >bakerjd@kos.net > >-----Original Message----- >From: David Vincent-Jones >To: J Forum >Date: Sunday, January 03, 1999 8:26 PM >Subject: Jforum: Operating Systems > > >>Are there significant advantages to be gained from NT or Linux over Win'98 >>in running J. >>Given the same amount of memory etc. is processing speed much the same? >> >>David V-J >> >> >> >>-------------------------------------------------------------------------- - >----- >>J Forum: for information about this list, see >http://www.jsoftware.com/forum.htm >> > > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 4 13:46:48 1999 From: "David Vincent-Jones" Subject: Re: Jforum: Editors Date: Mon, 4 Jan 1999 10:11:58 -0800 John; Thanks for the idea, most useful, one less frustration. David -----Original Message----- From: John D. Baker Date: January 3, 1999 10:01 PM Subject: Re: Jforum: Editors >>When I am debugging I am often frustrated trying to count to a specific >line >>number in a long function. >>Is there any way to display line numbers during the debug process; it would >>make the application of stops etc. easier to apply. > >The solution to this problem is to forget about line numbers >and set stops based on strings in the code. A few years >ago I wrote a few stop setting verbs that do this. Take a >look at the the attached verb (stopat) > >NB. J script begins > >require 'debug' > >stopat =: 3 : 0 >: >NB. Sets stops on J code. Stops cannot be set on all >NB. comment or blank lines as they are not executed. >NB. >NB. 'verb' stopat 'thisstr' >NB. >if. 1 <# jc99 =. 0 decomm jcr x. do. > > NB. multiple line explicit definition > b99 =.(':' = 0{"1 jc99) *. ' ' *./"1 . = }."1 jc99 > > NB. drop "n : 0" header and closing ")" > b99 =. }:@}. b99 [ jc99 =. }:@}. jc99 > ln99 =. b99 i. 1 > > NB. monad/dyad line numbers handles null cases > ln99 =. (i. ln99) ; i. 0 >. (#b99) - >:ln99 > null99 =. 2 _2 {~ 1 e. b99 > > NB. delete : monad/dyad delimiter > jc99 =. jc99 #~ -. b99 > > NB. monad/dyad string match masks - all blank lines excluded > b99 =. (-. *./"1 ' ' = jc99) *. +./"1 ($ jc99) $ y. E. , jc99 > b99 =. null99 {. (0 = ; ln99) <;.1 b99 > > NB. select matching lines from monad/dyad and set stops > dbsq@dbss x. , ' ' , ; 2&A. ' : ' ; ":&.> b99 #&.> ln99 >else. > > NB. tacit or single line explicit > dbsq@dbss x. , ' 0 : 0 ' >end. >) > >NB. remove comments from J code >decomm =: 3 : 0 >1 decomm y. >: >NB. mask of unquoted comment starts > c =. ($y.)$'NB.' E. ,y. > c =. +./\"1 c > ~:/\"1 y. e. '''' > y. =. ,y. > >NB. blank out comments > y. =. ' ' ((,c)# i. # y.)} y. > y. =. y. $~ $c > >NB. remove blank lines - default > if. x. do. y. #~ y. +./ . ~: ' ' end. >) > >NB. returns a char table representation of a j word >jcr =: [: > [: <;._1 (10{a.)"_ , [: 5!:5 < > > > > > > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 4 14:44:16 1999 Date: Mon, 4 Jan 1999 20:24:24 +0100 (MET) From: Martin Neitzel Subject: Re: Jforum: J man page - Linux - stdin, stdout, echo > So why not put [shell.ijs utils] in stdlib.ijs? I good suggestion. The defined verbs (exit, echo, stdout, getenv, ...) are certainly worthwhile to have around. However, these definitions are not the main purpose of shell.ijs. The main purpose are the lines ARGC=:$ARGV=: 2!:4 '' SCRIPT=:SCRIPT}.~('#!'-:2{.SCRIPT)*>:0{#;._2 SCRIPT=:1!:1]0{ARGV (0 0$0)[3 : SCRIPT]0 exit 0 I believe "exit" is part of the standard definitions, and should really be defined by standard on Unix as well. I'm not so secure where the others should go, at the moment. Martin -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 4 14:49:43 1999 Date: Mon, 4 Jan 1999 20:33:43 +0100 (MET) From: Martin Neitzel Subject: RE: Jforum: What happened? Gosi: > > I have also had the privilege to use X on other machines so I do know > a fair bit about X. Great! > So I guess what you are asking for is more X interactions in J and > I do agree that will be nice. It will probably happen sooner than you expect. Excellent! Martin -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 5 00:45:31 1999 Date: Tue, 5 Jan 1999 00:04:45 -0500 (EST) From: "Brian M. Schott" Subject: RE: Jforum: Mac runtime for Pousse? In-Reply-To: <01BE3801.43F7F940@geisli-363.centrum.is> On Mon, 4 Jan 1999, Bjorn G. Helgason wrote: + +From: Brian M. Schott[SMTP:dscbms@panther.Gsu.EDU] +> On Fri, 1 Jan 1999, Bjorn G. Helgason wrote: +> +The Macintosh doesn't have command line parameters so there +> +is no /rt parameter. If J is started by double-clicking a +> +script file with a suffix of .ijr, then J is started as a +> +runtime application. The ijr file does not have to be an +> +encoded ijr file." Yes I read your quoted info above finally in the J401 Help||User||Runtime . But the context of this sentence is subtle: "While you are debugging a rt file" + +> +Therefore I conclude that my Windows solution for pousse +> +can be made by just renaming pusl.ijs to pusl.ijr on the +> +Mac and it would run by double-clicking on that file on the +> +Mac. I took your comment to mean that you thought you do NOT need to execute wd 'makejr xx.ijs xx.ijr'. But you must execute that to turn something into an ijr file. + + > I doubt that simply renaming an .ijs file to an .ijr +> file will make the resulting script into a runtime file. + +I tested .ijr this morning and it works as promised. No /rt needed + +I was going to download J402 but discovered that it is not yet available +for the Mac so I could not test Pousse but I am now sure it will work +as described earlier. + I tried to use wd 'makejr pousse.ijs pousse.ijr' but continue to get the error "Error in application. Application will terminate." On the other had I was able to get the toy "Hello world" rt to work on my Mac. So it looks like I am missing some detail in my pousse effort. The error seems to be in the required scripts, because I get the error message even when I comment out the final pousse command: pousse '' . +/Gosi + (B=) -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 5 04:28:02 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Mac runtime for Pousse? Date: Tue, 5 Jan 1999 09:20:06 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE388C.DAE57400" ------ =_NextPart_000_01BE388C.DAE57400 From: Brian M. Schott[SMTP:dscbms@panther.Gsu.EDU] > I took your comment to mean that you thought you do > NOT need to execute wd 'makejr xx.ijs xx.ijr'. But you must > execute that to turn something into an ijr file. It is enough to rename the file. You do NOT need to execute makejr. > I tried to use wd 'makejr pousse.ijs pousse.ijr' but > continue to get the error "Error in application. Application > will terminate." That is NOT what I said you should do. > The error seems to be in the required scripts, > because I get the error message even when I comment out the > final pousse command: pousse '' . That is why I said you should make a copy of profile and boot and change them. The first to call the new second and the second to NOT setup the development environment. I said you should follow my instructions for creating pusl.ijs and then you could rename pusl.ijs to pusl.ijr The changes in pusl compared to pousse is to put in a line to run the new profile and the other to remove a call to the session manager. From: Bjorn G. Helgason[SMTP:gosi@centrum.is] > +Therefore I conclude that my Windows solution for pousse > +can be made by just renaming pusl.ijs to pusl.ijr on the > +Mac and it would run by double-clicking on that file on the > +Mac. Here it comes again to the Forum: I changed the pousse.ijs script in two ways to make it run straight. Made a copy and changed the name to pusl.ijs As a first line added 0!:0 <'user\pousse\prof.ijs' NB. add this line before anything else prof.ijs is a copy of profile.ijs with one line changed 0!:0 <'user\pousse\boot.ijs' NB. Change the path to the boot script in boot.ijs I changed one line NB. configure_jcfg_ 0 NB. remove the line by commenting it out and at last in the pusl.ijs changed one line FIXFONT=: '"ISIJ" 10 default' NB. remove the call to SM and replace MAC: and now you can change the name of pusl.ijs to pusl.ijr and double click on pusl.ijr on the Mac. WINDOWS: In windows you set up the properties of the icon to: C:\j402\j.exe /rt user\pousse\pusl.ijs NB. put this in properties of the icon Hope this is getting a bit clearer now. /Gosi ------ =_NextPart_000_01BE388C.DAE57400 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IgMJAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABACQAAABSRTogSmZv cnVtOiBNYWMgcnVudGltZSBmb3IgUG91c3NlPwA4DAEFgAMADgAAAM8HAQAFAAkAFAAGAAIAAQEB IIADAA4AAADPBwEABQAIADYABwACACMBAQmAAQAhAAAANkQzN0Q0QkQ3QkE0RDIxMThCOUEyQ0Ex RkZDMDAwMDAAQgcBA5AGABgIAAASAAAACwAjAAEAAAADACYAAAAAAAsAKQABAAAAAwA2AAAAAABA ADkAIDIqlYw4vgEeAHAAAQAAACQAAABSRTogSmZvcnVtOiBNYWMgcnVudGltZSBmb3IgUG91c3Nl PwACAXEAAQAAABYAAAABvjiMlM691DdvpHsR0ouaLKH/wAAAAAAeAB4MAQAAAAUAAABTTVRQAAAA AB4AHwwBAAAAEAAAAGdvc2lAY2VudHJ1bS5pcwADAAYQ6MUfQQMABxBqBgAAHgAIEAEAAABlAAAA RlJPTTpCUklBTk1TQ0hPVFRTTVRQOkRTQ0JNU0BQQU5USEVSR1NVRURVSVRPT0tZT1VSQ09NTUVO VFRPTUVBTlRIQVRZT1VUSE9VR0hUWU9VRE9OT1RORUVEVE9FWEVDVVRFVwAAAAACAQkQAQAAAJUG AACRBgAA1g4AAExaRnUMfhyH/wAKAQ8CFQKoBesCgwBQAvIJAgBjaArAc2V0MjcGAAbDAoMyA8UC AHByQnER4nN0ZW0CgzN3AuQHEwKAfQqACM8J2TvxFg8yNTUCgAqBDbELYMBuZzEwMzkK9AzQeDE0 NA3wC1UUUQvyYwUAQCAKi2xpMTgwOQLRaS0Z8xncC8IxNqsMIRNQbxPQYwVARgNhnjoK4R2rHpYM giBCByE5A6BNLgYAEXAesHRbQFNNVFA6ZATwYlhtc0AKsAIwaASQLgBHc3UuRURVXckbbTM2Gi0g Ph9nGrUBHpZJIHRvb2sg6nkIYSAFoG0HgAIwJ6HuIAeAA5EjIGEFQCgBKUHJCGBnaCmEZG8Khxpf gyYPHpZOT1QgbgngUmQowmV4BZB1E9AgincuYCcAwGtlagXAYHh4LmlqBCAv43KaJyGgQi7wKZNt dRPAvyrPK98s7y62KVMo0XQIcC0DoHMDcBHAaAuAZyAvC4Ao0QORMIEgHKBsZd4uMa8lswqPGoxJ BUAEAJ0uoG4qAijCFhBuYQeA5ylBLxA3gyBZKnMt7y7y/y90N8Yj/yUPM18geieRCIH3LmMxcC8b cAhgBBA3sDAS80VXMKAgYi7wN98yv0Jf3wWgAjALgApQKMJnEcA8g+cEkANgBcAiRUtzC4A3ANJw C1BpYylwaQIgIaC+QUx4Rv9ID0kfA/BsAyC5E9BybQuAKXA3sCI5P7saj1JCVCliO1E9oncpYl0n kHMLcC5gKaJzKfFs/y5gKqA/T0BfTt9P7yDFVHDfS0YRsBPgBCAo0WIvEEwx4zySFhBxdWkWETYQ BQP8cyxN71kPWh9coEywRGK/J5BK7AeBVaBK4C6gdgnw/1UhY6EnkChWCGBLA15fX29/YH8coDxA AyBFVChDAHBk+x9QaMUnRqA3yFffOM9Sv/cbIlR2VTB5VX8uYC9yNwDlKEFwbxBvZkVAA2A3gv83 AS5gBuAesHGybIURcRkQ/TxzbSGgW3IcoBGgKLNMsP9RMjyhLjAH4BGwSiEuYHHCPzySdWUnsGyF PaIRsXVwbzyDDbBjkBWgcCiDCfB2/12AAiAogiGgVtxvPzdwBvA7FaAH4G1vEAuAE8Bydf8e4Ezh BCACECgxFhBMwTaR+nAxcGwwAmyFddUDoCmivwWgVmI8JX4GKMJ+BXJW3P9bcnL0BCBMMX4CKEJs sS5U32jFO1GBIzsxTEEgHDAuMP8owmyFfKBc5HUicUo8kh6w/yMxO+QEYGOQcJJ0ozWxdiP/BBBM 4RtWA4FjQT8/HZ8er1sfvyDGagWwA6BHIaBIKXhgZ2E2IG4iJGdv+QCQQGMokXygc5AEACPuvwHB bU8AUI4GZt+OBitbce8WEH0xYeJKIWMKQA2wKUTtfDFXC4AqoHcEIDYgCkD/TNJ9I0VUZT+U35Xv lvdMsK8DoFyhAMCYoWJvEGoxcf88FH3KgRpksFzjmw+cH50v7Zb3TQDQcbNpUPF/1IcRy5+BKqB1 AmBlLZhwTKD+azaCoeMpcXFzoe+i/6QP/aUfY3mnbP8m6ZEwl/Gmgd8oUQeRY0ALcYomRgWwkrD+ OnnOcvR19EVZBPVc0qaw/S8gYROwKMNwYqaBhwJ8gf8LcCohN8amAJihcKVxwrMK7zxEgTd+dq3F QbCxc/WGE0efQA2wcnYwITpBsDzyJ0Rhclyt4EVjvaFxUecwAkagvtFOQiGgvDEpQd87UYYTXKCX 0wBweTZkeGD/muetxb5GO0JwrzADA/AjIP+pQS8QhhOzBbyPvZlyAr6G/b8SQ3MHRUApcDvTPJJy A/8E9FbcTDHHhrLZxMd25r8hi0ohHKBnCHBlX2obIPxnX8YgIOPPdL8SiVU8kv+/5G8QKFU2g2Sj VtxxwilxPwtgdDFc1aCXzG6txUZJQFhGT05UPY7AJ4AiSVNJSiIgGTDFeCFmYbBsdCcg48/t/4nm IjBxsxYQC1GSYFbfrm/xGyJNQUOx9q6PjiRxwv87kAfg3B8bQH+DA5Fy+LlE/3ESoK8vsXHC21Wn hChAqAIfqUKhXbeBrZjbVVdJTtBET1dTsfZJY7GZZe9V80rxd8WOAXAEkEpQB5HvcRE8kkygqVJv 3Xjb7433u91gvaBqGhASsO6ALi6x/CAvACBEUr2afhXYR4WCf7+Tg3Lqn+ui7C9TL/PSSL/yYfG1 BCBK4X2zwxBisEKfN6CEMQXA36GMDS9HkiEL86UVMQD6UAAAAAMAEBAAAAAAAwAREAAAAABAAAcw wE3184g4vgFAAAgwwE3184g4vgEeAD0AAQAAAAUAAABSRTogAAAAAO7p ------ =_NextPart_000_01BE388C.DAE57400-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 5 07:51:07 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Mac runtime for Pousse? Date: Tue, 5 Jan 1999 12:37:56 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE38A8.751193E0" ------ =_NextPart_000_01BE38A8.751193E0 From: Bjorn G. Helgason[SMTP:gosi@centrum.is] > in boot.ijs I changed one line > NB. configure_jcfg_ 0 NB. remove the line by commenting it out If you want to then you can just change the boot script by replacing the line with: ConfRT_jcfg_=: 3 : 0 r=.wd'qrt' if. r -: ,'1' do. NB. rtout'runtime' else. NB. rtout'development' configure_jcfg_ 0 end. ) ConfRT_jcfg_'' Then you will be starting the development environment with the configuration if you start pusl.ijs without the /rt and run in runtime if you do. And similarily on the Mac by double clicking on the pusl.ijs will start the development environment with the configuration and double clicking on pusl.ijr will start the runtime version. /Gosi ------ =_NextPart_000_01BE38A8.751193E0 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IiYMAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABACQAAABSRTogSmZv cnVtOiBNYWMgcnVudGltZSBmb3IgUG91c3NlPwA4DAEFgAMADgAAAM8HAQAFAAwAJQA4AAIARwEB IIADAA4AAADPBwEABQAMAB8ABQACAA4BAQmAAQAhAAAAMkQwRkNFQjY4Q0E0RDIxMThCOUEyQ0Ex RkZDMDAwMDAATgcBA5AGACAEAAASAAAACwAjAAEAAAADACYAAAAAAAsAKQABAAAAAwA2AAAAAABA ADkAQB+BOKg4vgEeAHAAAQAAACQAAABSRTogSmZvcnVtOiBNYWMgcnVudGltZSBmb3IgUG91c3Nl PwACAXEAAQAAABsAAAABvjiMlM691DdvpHsR0ouaLKH/wAAAAAaruvEAHgAeDAEAAAAFAAAAU01U UAAAAAAeAB8MAQAAABAAAABnb3NpQGNlbnRydW0uaXMAAwAGEKc7T1YDAAcQJgIAAB4ACBABAAAA ZQAAAEZST006QkpPUk5HSEVMR0FTT05TTVRQOkdPU0lAQ0VOVFJVTUlTSU5CT09USUpTSUNIQU5H RURPTkVMSU5FTkJDT05GSUdVUkVKQ0ZHME5CUkVNT1ZFVEhFTElORUJZQ09NTUUAAAAAAgEJEAEA AACcAgAAmAIAAAUFAABMWkZ15NZ+x/8ACgEPAhUCqAXrAoMAUALyCQIAY2gKwHNldDI3BgAGwwKD MgPFAgBwckJxEeJzdGVtAoMzdwLkBxMCgH0KgAjPCdk78RYPMjU1AoAKgQ2xC2BAbmcxMDM5Cv8x VjYMIRNQbxPQYwVARj0DYToK4RnrGtYMgiBCBmoFsAOgRy4gSGUQbGdhcwIgW1NNIFRQOmdvAJBA Y0EJ8HRydW0uBABd4QqLbGkzNg3wC1UUUeUL8mMAQCA+G6chhRrWXQuAIAbgGvAfoGoEIEkuIBFx GRAJgCACIGUgPyCwJTEKhyEvIj8a1k5CQx3gBaBuZmlnCHBlxF9qJxBnXyAN8B0yLyp0KOIWEARg diVAdGjpJUVieSkRbQeAAjALgO5nI7AFQAhgdB/vIP0lqEMLGSapSWYgeQhgIOZ3AHAFQHRvK4ID oDGS8mMDkWp1E8AklSuDI/LeIAT1LCEWEAtRYyzCK5LvL3UlYwPwK5A6L3UvdQhQKSlAUlQptD0b kDMgAxuQCnZyPS53ZCc6cQAgJy91BpArASAtARuQLCcxJyBkb94uL3Uq4zIgLUAnH3Asod8HgDom HhARsDuvJw2wK2A9FaBwLII6JikvPUZuZG099ik3DzgXJzomL3VU6zJmA/BsAyBiJUATwArATyyz K5I/GUGxdmkDYG7vR3M2siuDQEZhLLACIDo30zGDRjMgcDMwbCQzNrL7LTErgy9K8QBwJQA8wSOy tzzFSkY7iEFMwQCQbQMQ3wrAAxAsMAIgK4NNANAsEp07gHUCYEjxLjBjayzC/0/lSylF0UYzL3VG z0ffSO7/TKNQzi91T+FLJQXAUsgrgz9NZitgEaBJsT32L3UvRxce8S91FTEAXUADABAQAAAAAAMA ERAAAAAAQAAHMGBnZEOnOL4BQAAIMGBnZEOnOL4BHgA9AAEAAAAFAAAAUkU6IAAAAABbJw== ------ =_NextPart_000_01BE38A8.751193E0-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 5 11:22:44 1999 From: "Nichols, Peter" Subject: Jforum: Reading an Excell Spreadsheet Date: Tue, 5 Jan 1999 09:44:35 -0600 Does anyone out there have a function that will read an entire Excel Spreadsheet into a boxed array? Or can someone point me a direction? The XL utilities seem to be for calling J from Excel. Thanks. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 5 12:17:52 1999 From: "Nichols, Peter" Subject: Jforum: Reading Excel Spreadsheets Date: Tue, 5 Jan 1999 10:49:17 -0600 charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by lists.interlog.com id LAA19663 I'm trying to read this spreadsheet and here's what I'm getting. What am I missing? Thanks. Pete xlopen 's:\spr\test.xls' ".&> xlreadr 's:\spr\test.xls USA 1 1 20 20' �domain error: wd � xlcmd'base run ',jm,'!',y. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 5 15:10:35 1999 From: "Nichols, Peter" Subject: RE: Jforum: Reading Excel Spreadsheets Date: Tue, 5 Jan 1999 13:51:57 -0600 charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by lists.interlog.com id OAA19981 Since playing with the xl functions, when I open the project manager it only minimizes down on the toolbar. I can only open it maximized by right clicking. I can't restore it to normal size. I have cold booted since then and it still seems to be stuck. What gives? Thanks -----Original Message----- From: Nichols, Peter [SMTP:pnichols@sprinc.com] Sent: Tuesday, January 05, 1999 10:49 AM To: 'forum@jsoftware.com' Subject: Jforum: Reading Excel Spreadsheets I'm trying to read this spreadsheet and here's what I'm getting. What am I missing? Thanks. Pete xlopen 's:\spr\test.xls' ".&> xlreadr 's:\spr\test.xls USA 1 1 20 20' �domain error: wd � xlcmd'base run ',jm,'!',y. ------------------------------------------------------------------------ -------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 5 16:42:06 1999 From: "John D. Baker" Subject: Re: Jforum: Reading an Excell Spreadsheet Date: Tue, 5 Jan 1999 16:26:36 -0500 charset="iso-8859-1" Peter, >Does anyone out there have a function that will read an entire Excel >Spreadsheet into a boxed array? Or can someone point me a direction? >The XL utilities seem to be for calling J from Excel. Thanks. There are three basic ways to dothis depending on the complexity and size of your spreadsheet. 1) For simple transfers from Excel to J you can use cut and paste. The EXCEL data comes in as character data with TABS delimiting cells and CRLF marking the ends of lines. The primitive J cut ;. conjunction can easily slice and dice such text. There are a number of cut utilities in the standard libraries like (cutopen) that you can also use. 2) A related method firsts exports the data from Excel as a *.csv file. The *.csv file is essentially in the same format as the clipboard with commas replacing tabs as cell delimiters. The same cut based parsing techniques work on this data. The following verb can be used for (1,2) parsecsv =: 3 : 0 ',' parsecsv y. : 'separater cannot be the " character' assertmsg -. x. -: '"' NB. CRLF delimited *.csv text to char table y. =. x. ,. ];._2 y. -. CR NB. bit mask of unquoted " field delimiters b =. -. }. ~:/\ '"' e.~ ' ' , , y. b =. ($y.) $ b *. , x. = y. NB. use masks to cut lines b <;._1"1 y. ) assertmsg =: [ 13!:8 ([: 0&e. ]) $ 12"_ 3) The last method uses ODBC. ODBC can only be used if your spreadsheet is a simple table with a header row at the top of homogeneous columns of data. Unless the sheet is set up in this format it's rare to find a garden variety spreadsheet in this format. The example spreadsheet: \j40x\system\examples\data\jdata.xls illustrates the format. I'd suggest reading the J user manual about ODBC before giving this a try. Hope this helps. John D. Baker bakerjd@kos.net -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 5 17:19:37 1999 From: "Nichols, Peter" Subject: RE: Jforum: Reading an Excell Spreadsheet Date: Tue, 5 Jan 1999 16:02:16 -0600 charset="iso-8859-1" Not quite what I need. I have to be able to automate the process of reading in the spreadsheets. The data is also (of course) not homogenous by columns. I would like something that I can call like this... data=:ReadXL 'c:\filename.xls sheetname 1 1 20 20' The result would be a 20 by 20 matrix with <'' for each empty cell and data for ones that are not empty. Thanks, very much for any info... Pete -----Original Message----- From: John D. Baker [SMTP:bakerjd@kos.net] Sent: Tuesday, January 05, 1999 3:27 PM To: forum@jsoftware.com Subject: Re: Jforum: Reading an Excell Spreadsheet Peter, >Does anyone out there have a function that will read an entire Excel >Spreadsheet into a boxed array? Or can someone point me a direction? >The XL utilities seem to be for calling J from Excel. Thanks. There are three basic ways to dothis depending on the complexity and size of your spreadsheet. 1) For simple transfers from Excel to J you can use cut and paste. The EXCEL data comes in as character data with TABS delimiting cells and CRLF marking the ends of lines. The primitive J cut ;. conjunction can easily slice and dice such text. There are a number of cut utilities in the standard libraries like (cutopen) that you can also use. 2) A related method firsts exports the data from Excel as a *.csv file. The *.csv file is essentially in the same format as the clipboard with commas replacing tabs as cell delimiters. The same cut based parsing techniques work on this data. The following verb can be used for (1,2) parsecsv =: 3 : 0 ',' parsecsv y. : 'separater cannot be the " character' assertmsg -. x. -: '"' NB. CRLF delimited *.csv text to char table y. =. x. ,. ];._2 y. -. CR NB. bit mask of unquoted " field delimiters b =. -. }. ~:/\ '"' e.~ ' ' , , y. b =. ($y.) $ b *. , x. = y. NB. use masks to cut lines b <;._1"1 y. ) assertmsg =: [ 13!:8 ([: 0&e. ]) $ 12"_ 3) The last method uses ODBC. ODBC can only be used if your spreadsheet is a simple table with a header row at the top of homogeneous columns of data. Unless the sheet is set up in this format it's rare to find a garden variety spreadsheet in this format. The example spreadsheet: \j40x\system\examples\data\jdata.xls illustrates the format. I'd suggest reading the J user manual about ODBC before giving this a try. Hope this helps. John D. Baker bakerjd@kos.net ------------------------------------------------------------------------ -------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 5 18:38:52 1999 From: "Chris Burke" Subject: Re: Jforum: Reading Excel Spreadsheets Date: Tue, 5 Jan 1999 18:29:10 -0500 charset="iso-8859-1" Content-Transfer-Encoding: 8bit Peter Nichols writes: >I'm trying to read this spreadsheet and here's what I'm getting. What >am I missing? > >xlopen 's:\spr\test.xls' >".&> xlreadr 's:\spr\test.xls USA 1 1 20 20' >�domain error: wd >� xlcmd'base run ',jm,'!',y. Peter, There are a number of steps needed between open and read. See the example in system\examples\ole\excel\xldemo.ijs. If you have not already done so, download the current version of this directory from http://www.jsoftware.com/scripts.htm Chris -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 5 18:41:45 1999 From: "Chris Burke" Subject: Re: Jforum: Reading Excel Spreadsheets Date: Tue, 5 Jan 1999 18:25:58 -0500 charset="iso-8859-1" >Since playing with the xl functions, when I open the project manager it >only minimizes down on the toolbar. I can only open it maximized by >right clicking. I can't restore it to normal size. I have cold booted >since then and it still seems to be stuck. What gives? Thanks I dont really understand this and suspect that the "restore" size is either very small or very large, and hence confused with minimized or maximized. If this is the case, the problem is easily fixed. The Project Manager dialog is one of several "sticky" dialogs that remember their position when last used. The information for this is found in the global WINPOS_j_ and stored on file in system\extras\config\winpos.ijs. If you want to reset the position for projectmanager or other form, you can do this by either: 1. resize the form, then close it 2. to clear the settings for a single form: wpreset_j_ 'formname' For projectmanager this would be: wpreset_j_ 'jprojectform' 3. to clear the settings for all forms: wpreset_j_ '' You can use these facilities for your own forms, see the "wp..." verbs defined in jadelib.ijs. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 6 00:26:12 1999 From: "Seymour Glass" Subject: Jforum: How do I make sense of J's OpenGL constants? (repost from comp.lang.apl) Date: Wed, 6 Jan 1999 00:12:37 -0500 I stupidly posted this to comp.lang.apl, without reply. I'm posting it to its rightful forum here. ------ I want to write a pixel array in OpenGL. I have my OpenGL spec fresh off the SGI Web site, and I try to issue DrawPixels (width,height,format,type,data) which, according to the example, is something like glDrawPixels (100 100,GL_RGBA,GL_INT);d Doing some poking around, I find that d in this example is 40000 items long, so I suspect that each item of d is one color component, and that GL_RGBA corresponds to the spec's format=RGBA, and GL_INT corresponds to the spec's type=INT. So far so good. My source data has pixels in RGB format, one item per pixel. I want to set format=RGBA and type=UNSIGNED_INT_8_8_8_8_REV. I see nothing in the system\main\gl3.ijs file that resembles this, and I can't figure out how to specify this pixel format. Is there a systematic way to translate the dozens of OpenGL constants to their J equivalents? The J constants seem to have a type and value embedded into one number, so a list of the type codes would be helpful too. Henry Rich -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 6 07:12:01 1999 From: "Bjorn G. Helgason" Subject: Jforum: Elementary question Date: Wed, 6 Jan 1999 11:51:49 -0000 I have one simple thing I want to do in one line ListLocale=: 3 : 0 a=.y.{,;:names 6 names__a'' ) ListLocale 0 NB. This one works fine The question is how do I do this in one line? Something like this: ListLocale2=: 3 : 0 names__(y.{,;:names 6)'' ) ListLocale2 0 NB. This one is missing something /Gosi -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 6 11:43:33 1999 From: "J Tibollo" Subject: Re: Jforum: Elementary question Date: Wed, 6 Jan 1999 11:31:01 -0500 charset="iso-8859-1" Gosi: How about this: listlocale=: 3 : 0 ". 'names_',(>y.{,;:names 6),'_ ''''' ) Regards, Joe -----Original Message----- From: Bjorn G. Helgason Date: Wednesday, January 06, 1999 6:54 AM Subject: Jforum: Elementary question >I have one simple thing I want to do in one line > >ListLocale=: 3 : 0 > a=.y.{,;:names 6 > names__a'' >) >ListLocale 0 NB. This one works fine > >The question is how do I do this in one line? > >Something like this: > >ListLocale2=: 3 : 0 > names__(y.{,;:names 6)'' >) >ListLocale2 0 NB. This one is missing something > >/Gosi > > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 6 12:20:08 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Elementary question Date: Wed, 6 Jan 1999 17:08:48 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE3998.434721E0" ------ =_NextPart_000_01BE3998.434721E0 From: J Tibollo[SMTP:jtibollo@backassociates.com] > How about this: > > listlocale=: 3 : 0 > ". 'names_',(>y.{,;:names 6),'_ ''''' > ) This works in one line but it is not the line I am looking for Number one: I want indirect addressing to the locale ( __ ) Number two: I do not want to use execute ( ". ) I think I have seen the solution to this but I am not sure. /Gosi ------ =_NextPart_000_01BE3998.434721E0 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+Ig4RAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABACAAAABSRTogSmZv cnVtOiBFbGVtZW50YXJ5IHF1ZXN0aW9uAGwLAQWAAwAOAAAAzwcBAAYAEQAIADAAAwApAQEggAMA DgAAAM8HAQAGABAAOAAFAAMALQEBCYABACEAAAAwODc4RTY1ODg4QTVEMjExOEI5QTJDQTFGRkMw MDAwMAAXBwEDkAYAjAMAABIAAAALACMAAQAAAAMAJgAAAAAACwApAAEAAAADADYAAAAAAEAAOQBg PoM5lzm+AR4AcAABAAAAIAAAAFJFOiBKZm9ydW06IEVsZW1lbnRhcnkgcXVlc3Rpb24AAgFxAAEA AAAWAAAAAb45lzj8WOZ4CaWIEdKLmiyh/8AAAAAAHgAeDAEAAAAFAAAAU01UUAAAAAAeAB8MAQAA ABAAAABnb3NpQGNlbnRydW0uaXMAAwAGEHvt5QIDAAcQEAEAAB4ACBABAAAAZQAAAEZST006SlRJ Qk9MTE9TTVRQOkpUSUJPTExPQEJBQ0tBU1NPQ0lBVEVTQ09NSE9XQUJPVVRUSElTOkxJU1RMT0NB TEU9OjM6MCJOQU1FUywoWSw7Ok5BTUVTNiksKVRISVNXT1IAAAAAAgEJEAEAAAAOAgAACgIAAOUD AABMWkZ1c0wYYf8ACgEPAhUCqAXrAoMAUALyCQIAY2gKwHNldDI3BgAGwwKDMgPFAgBwckJxEeJz dGVtAoMzdwLkBxMCgH0KgAjPCdk78RYPMjU1AoAKgQ2xC2BAbmcxMDM5Cv8xVjYMIRNQbxPQYwVA Rj0DYToK4RnrGtYMgiBKDiAHYAbhFaBbU01UkFA6anQdpEBiANBka2EEEG9jBzAT0HMSLgWgbV0K i2xpM142DfALVRRRC/JjAEAgzj4bpyHFGtZIbwfgAaDTCGAFQHRoBAA6Cochb98ifxrWJP8mDycf ICDwE8AlFaBjB0BlPRuQMyA/G5AKeCi/Kc8q1y+iIi4QICduYQeBXycsACg+eS5ceyw7AjowQyA2 KSwnX98wIDISLI8tny6vKTJvC+KXKBgLGTNZVCSxIHcFsNZrBCALgCACIGUrUTnh2mIkcWk6gQQg bhrwJJEVOfVJJDBtK1Bvb2t5C4BnIAIQBcA3BTcFTr51BtAEkDnCG5A70HcAcDE6gW5kaRYQGyFh ZM5kFhAEEDxidG87NCuzcCAoIF8x8DWWPcV0ezlAPmJkQEA7Aj6jQDF18RGwIGV4BZAkcEDyMAHP NZY3BTvQJKFuazvBEYD+djnwEbAJ8DszH1AKQB5wvwIgQCQ5ETpiO9M7AnMIcMRlLjzsL0dvAJA3 BQUVMQBLQAAAAwAQEAAAAAADABEQAAAAAEAABzAgA0RzlTm+AUAACDAgA0RzlTm+AR4APQABAAAA BQAAAFJFOiAAAAAAnO0= ------ =_NextPart_000_01BE3998.434721E0-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 6 14:04:21 1999 Date: Wed, 6 Jan 1999 19:27:41 +0100 (MET) From: Martin Neitzel Subject: Jforum: Comparative Language Evaluation paper, covering J There just appeared a _very_ good article on the web: D.McClain: A Comparison of Programming Languages for Scientific Processing http://www.azstarnet.com/~dmcclain/LanguageStudy.html This article is of the "scientific/practical" flavour and very well done. The author describes his catalogue of evaluation criteria and subjects various languages to them: IDL, C/C++, Fortran, Dylan, SML, CAML, Erlang, Clean, Haskell, Lisp, Mathematica, J It concludes with the Final Abstractness Scores for Candidate Languages. Martin PS: After reading the author's job descriptions I'd say that J can now officially termed not just "an extremely cool language" but also as "rocket science" ;-) -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 6 14:34:23 1999 Date: Wed, 6 Jan 1999 20:16:31 +0100 (MET) From: Martin Neitzel Subject: Jforum: simple 15!: demo available I just posted a short announcement to the "juggle" mailing list, but it occured to me only now that also non-Unixers might find the info helpful. So here I go again: The http://juggle.gaertner.de/ pages now feature a minimalistic example how to use 15!:-based calls to dynamic libraries. The library used for the example is the standard TCL 8.0 library. The example is an annotated session log and intentionally simple (rather than elegant). BTW, tcl and tk dlls are also available for Windows, the sample J code is absolutely portable across Unix and Windows. Martin -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 6 16:35:08 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: simple 15!: demo available Date: Wed, 6 Jan 1999 20:18:08 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE39BB.93C9DC20" ------ =_NextPart_000_01BE39BB.93C9DC20 From: Martin Neitzel[SMTP:neitzel@gaertner.de] > I just posted a short announcement to the "juggle" mailing list, > but it occured to me only now that also non-Unixers How do I get on to this "juggle" mailing list? /Gosi ------ =_NextPart_000_01BE39BB.93C9DC20 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IgEVAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABACcAAABSRTogSmZv cnVtOiBzaW1wbGUgMTUhOiBkZW1vIGF2YWlsYWJsZQCvDAEFgAMADgAAAM8HAQAGABQAEgAIAAMA DgEBIIADAA4AAADPBwEABgAUAA8ANAADADcBAQmAAQAhAAAAMjk3OEU2NTg4OEE1RDIxMThCOUEy Q0ExRkZDMDAwMDAAGgcBA5AGABwDAAASAAAACwAjAAEAAAADACYAAAAAAAsAKQABAAAAAwA2AAAA AABAADkAYLfWrLE5vgEeAHAAAQAAACcAAABSRTogSmZvcnVtOiBzaW1wbGUgMTUhOiBkZW1vIGF2 YWlsYWJsZQAAAgFxAAEAAAAWAAAAAb45sazFWOZ4KqWIEdKLmiyh/8AAAAAAHgAeDAEAAAAFAAAA U01UUAAAAAAeAB8MAQAAABAAAABnb3NpQGNlbnRydW0uaXMAAwAGEKJk7cIDAAcQswAAAB4ACBAB AAAAZQAAAEZST006TUFSVElOTkVJVFpFTFNNVFA6TkVJVFpFTEBHQUVSVE5FUkRFSUpVU1RQT1NU RURBU0hPUlRBTk5PVU5DRU1FTlRUT1RIRSJKVUdHTEUiTUFJTElOR0xJU1QsQlVUSVQAAAAAAgEJ EAEAAACVAQAAkQEAANwCAABMWkZ1tHPbY/8ACgEPAhUCqAXrAoMAUALyCQIAY2gKwHNldDI3BgAG wwKDMgPFAgBwckJxEeJzdGVtAoMzdwLkBxMCgH0KgAjPCdk78RYPMjU1AoAKgQ2xC2DAbmcxMDM5 CvQM0HgxNDQN8AtVFFEL8mMFAEAgCotsaTE4MDkC0WktGfMZ3AvCMTarDCETUG8T0GMFQEYDYX46 CuEdqx6WDIIF0ArAdAMLgAexaXR6ZWxbQFNNVFA6biG0QJRnYQSQdCJwci4NsLJdG20zNhovGzE+ H2dDGrUelkkganUTwCAEcG8TwWQgYSBzJmgVsShgbm4IYG5jJxPgCfAFQHRvKbBoZQQgIiewZ2ds ZSLOIADAAxALgGcgHDATwJ4sCock/yYPHpZidQVA4SHAIG9jYwhwKEEpwcMHgC8gbmx5ICkQB+Bl KfBhKNFscynQKRBu1C1VAwB4BJBzI78kzdMbXCwfIEgwcWQp0CeQfmcRwDABKbQEACovKzM/0zQF NAUvRygQaTQFFTECADqwAAAAAwAQEAAAAAADABEQAAAAAEAABzDAaJRbsTm+AUAACDDAaJRbsTm+ AR4APQABAAAABQAAAFJFOiAAAAAAN9I= ------ =_NextPart_000_01BE39BB.93C9DC20-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 6 17:13:59 1999 From: "Seymour Glass" Subject: Re: Jforum: Elementary question Date: Wed, 6 Jan 1999 17:01:01 -0500 After some back and forth with Gosi I arrived at (names@(''"_)@(18!:4) ([ 18!:4) (18!:5)@(''"_)) y.{,;:names 6 which is too wordy for his taste. But I like it, because it means that (]:@(''"_)@(18!:4) ([ 18!:4) (18!:5)@(''"_)) would be a tacit adverb that executes u. on the locale y., which is something I've long sought. Henry Rich -----Original Message----- From: Bjorn G. Helgason Date: Wednesday, January 06, 1999 06:45 Subject: Jforum: Elementary question >I have one simple thing I want to do in one line > >ListLocale=: 3 : 0 > a=.y.{,;:names 6 > names__a'' >) >ListLocale 0 NB. This one works fine > >The question is how do I do this in one line? > >Something like this: > >ListLocale2=: 3 : 0 > names__(y.{,;:names 6)'' >) >ListLocale2 0 NB. This one is missing something > >/Gosi > > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 6 18:13:25 1999 From: smillie@cs.ualberta.ca Subject: Jforum: Some J papers Date: Wed, 6 Jan 1999 16:01:49 -0700 (MST) The following four reports of mine are now available, both as Postscript files for the papers and as text files for the J scripts, at http://www.cs.ualberta.ca/~smillie/Jpage.html "Beginning J", 4 pp. "J Companion for Statistical Calculations", 62 pp. JSP: A J Statistical Package, Second Edition", 3 pp. "J4.01 Windows Programming Examples", 12 pp. Keith Smillie smillie@cs.ualberta.ca -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 6 20:12:48 1999 Date: Thu, 7 Jan 1999 01:54:31 +0100 (MET) From: Martin Neitzel Subject: RE: Jforum: simple 15!: demo available Gosi> How do I get on to this "juggle" mailing list? (1) http://juggle.gaertner.de/ml/ describes the 2 mailing lists and says how to get on the list. (2) At the same place is a simple search interface to query all earlier messages on the list. It is regexp-based, so if you look for messages matching "." you'll get a complete overview. (3) For various reasons, the juggle mailing lists have a policy against the use of most MIME features, notably: - "multipart/attachments" (including zipped J files/packages!) - "multipart/alternate" (ie. content both in plaintext and html) - "application/whatever" The permitted exception is: a single-part MIME type where with Content-Type: text/plain, charset what you want but "us-ascii" strongly suggested, Content-Transfer-Encoding: 7bit, 8bit, or quoted-printable but 7bit recommended and I reserve the right to transform the Transfer-Encoding. So Gosi for example is free to send Icelandic strings without distortion. He would however find the button which prevents his "application/ms-tnef" attachments. I'm appending Gosi original question message so that it becomes clear what impact such msgs would have at, for example, the simple archive search. (4) If you do not have IP connectivity but just email, this will get you started: echo "help" | mail juggle-request@gaertner.de Due to lack of time I cannot explain right now my motivation to outlaw zipped J code on this list. Just include J fragments or files literally. foo =. 'like this' NB. Your editor and/or mouse will bwe very helpful. NB. Don't touch that dreaded "Attach File" button. Martin And here the original mail with it's 1:55 signal to noise ratio. > From owner-jsoftware@lists.interlog.com Wed Jan 6 22:28:06 1999 > From: "Bjorn G. Helgason" > To: "'forum@jsoftware.com'" > Subject: RE: Jforum: simple 15!: demo available > Date: Wed, 6 Jan 1999 20:18:08 -0000 > > > ------ =_NextPart_000_01BE39BB.93C9DC20 > Content-Type: text/plain; charset="us-ascii" > Content-Transfer-Encoding: 7bit > > > From: Martin Neitzel[SMTP:neitzel@gaertner.de] > > I just posted a short announcement to the "juggle" mailing list, > > but it occured to me only now that also non-Unixers > > How do I get on to this "juggle" mailing list? > > /Gosi > > ------ =_NextPart_000_01BE39BB.93C9DC20 > Content-Type: application/ms-tnef > Content-Transfer-Encoding: base64 > > eJ8+IgEVAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG > ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd > AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe > AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA > AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA > AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA > AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABACcAAABSRTogSmZv > cnVtOiBzaW1wbGUgMTUhOiBkZW1vIGF2YWlsYWJsZQCvDAEFgAMADgAAAM8HAQAGABQAEgAIAAMA > DgEBIIADAA4AAADPBwEABgAUAA8ANAADADcBAQmAAQAhAAAAMjk3OEU2NTg4OEE1RDIxMThCOUEy > Q0ExRkZDMDAwMDAAGgcBA5AGABwDAAASAAAACwAjAAEAAAADACYAAAAAAAsAKQABAAAAAwA2AAAA > AABAADkAYLfWrLE5vgEeAHAAAQAAACcAAABSRTogSmZvcnVtOiBzaW1wbGUgMTUhOiBkZW1vIGF2 > YWlsYWJsZQAAAgFxAAEAAAAWAAAAAb45sazFWOZ4KqWIEdKLmiyh/8AAAAAAHgAeDAEAAAAFAAAA > U01UUAAAAAAeAB8MAQAAABAAAABnb3NpQGNlbnRydW0uaXMAAwAGEKJk7cIDAAcQswAAAB4ACBAB > AAAAZQAAAEZST006TUFSVElOTkVJVFpFTFNNVFA6TkVJVFpFTEBHQUVSVE5FUkRFSUpVU1RQT1NU > RURBU0hPUlRBTk5PVU5DRU1FTlRUT1RIRSJKVUdHTEUiTUFJTElOR0xJU1QsQlVUSVQAAAAAAgEJ > EAEAAACVAQAAkQEAANwCAABMWkZ1tHPbY/8ACgEPAhUCqAXrAoMAUALyCQIAY2gKwHNldDI3BgAG > wwKDMgPFAgBwckJxEeJzdGVtAoMzdwLkBxMCgH0KgAjPCdk78RYPMjU1AoAKgQ2xC2DAbmcxMDM5 > CvQM0HgxNDQN8AtVFFEL8mMFAEAgCotsaTE4MDkC0WktGfMZ3AvCMTarDCETUG8T0GMFQEYDYX46 > CuEdqx6WDIIF0ArAdAMLgAexaXR6ZWxbQFNNVFA6biG0QJRnYQSQdCJwci4NsLJdG20zNhovGzE+ > H2dDGrUelkkganUTwCAEcG8TwWQgYSBzJmgVsShgbm4IYG5jJxPgCfAFQHRvKbBoZQQgIiewZ2ds > ZSLOIADAAxALgGcgHDATwJ4sCock/yYPHpZidQVA4SHAIG9jYwhwKEEpwcMHgC8gbmx5ICkQB+Bl > KfBhKNFscynQKRBu1C1VAwB4BJBzI78kzdMbXCwfIEgwcWQp0CeQfmcRwDABKbQEACovKzM/0zQF > NAUvRygQaTQFFTECADqwAAAAAwAQEAAAAAADABEQAAAAAEAABzDAaJRbsTm+AUAACDDAaJRbsTm+ > AR4APQABAAAABQAAAFJFOiAAAAAAN9I= > > ------ =_NextPart_000_01BE39BB.93C9DC20-- > > > -------------------------------------------------------------------------------- > J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 6 20:23:21 1999 Date: Wed, 06 Jan 1999 19:03:27 -0600 From: Steven H Rogers Organization: S H Rogers & Associates Subject: Re: Jforum: simple 15!: demo available References: <01BE39BB.936CC800@geisli-37.centrum.is> "Bjorn G. Helgason" wrote: > From: Martin Neitzel[SMTP:neitzel@gaertner.de] > > I just posted a short announcement to the "juggle" mailing list, > > but it occured to me only now that also non-Unixers > > How do I get on to this "juggle" mailing list? > > /Gosi > > ------------------------------------------------------------------------ > > Part 1.2 Type: application/ms-tnef > Encoding: base64 Purloined from "hhtp://juggle.gaertner.de". " ... juggle@gaertner.de, the list for all kinds of messages about "J under Unix". To subscribe, just send a message with the line subscribe youradress@your.site in the message body (not the "Subject:") to juggle-request@gaertner.de. Your successfull addition will be acknowledged promptly. " There are some other good examples of J on Unix as well. -- Steve -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 6 23:13:32 1999 Date: Wed, 06 Jan 1999 23:01:57 -0500 From: Murray Eisenberg Organization: Mathematics & Statistics, Univ. of Mass./Amherst Subject: Re: Jforum: Some J papers References: <19990106230152Z13211-11899+304@scapa.cs.ualberta.ca> Hello Keith, I clicked on the URL in your posting to forum@jsoftware.com, and your server replied, "The requested URL /~smillie/Jpage.html was not found on this server." smillie@cs.ualberta.ca wrote: > > The following four reports of mine are now > available, both as Postscript files for the > papers and as text files for the J scripts, > at > http://www.cs.ualberta.ca/~smillie/Jpage.html > > "Beginning J", 4 pp. > > "J Companion for Statistical Calculations", 62 pp. > > JSP: A J Statistical Package, Second Edition", 3 pp. > > "J4.01 Windows Programming Examples", 12 pp. > > Keith Smillie > smillie@cs.ualberta.ca > > -------------------------------------------------------------------------------- > J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -- Murray Eisenberg Internet: murray@math.umass.edu Mathematics & Statistics Dept. Voice: 413-545-2859 (W) University of Massachusetts 413-549-1020 (H) Amherst, MA 01003 Fax: 413-545-1801 -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 04:11:34 1999 From: Ajith Prasad Subject: RE: Jforum: Some J papers Date: Thu, 7 Jan 1999 16:48:58 +0800 Importance: high X-Priority: 1 charset="ISO-8859-1" http://www.cs.ualberta.ca/~smillie/Jpage.htm works. -----Original Message----- From: Murray Eisenberg [mailto:murray@math.umass.edu] Sent: Thursday, January 07, 1999 12:02 PM Subject: Re: Jforum: Some J papers Hello Keith, I clicked on the URL in your posting to forum@jsoftware.com, and your server replied, "The requested URL /~smillie/Jpage.html was not found on this server." smillie@cs.ualberta.ca wrote: > > The following four reports of mine are now > available, both as Postscript files for the > papers and as text files for the J scripts, > at > http://www.cs.ualberta.ca/~smillie/Jpage.html > > "Beginning J", 4 pp. > > "J Companion for Statistical Calculations", 62 pp. > > JSP: A J Statistical Package, Second Edition", 3 pp. > > "J4.01 Windows Programming Examples", 12 pp. > > Keith Smillie > smillie@cs.ualberta.ca > > ---------------------------------------------------------------------------- ---- > J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -- Murray Eisenberg Internet: murray@math.umass.edu Mathematics & Statistics Dept. Voice: 413-545-2859 (W) University of Massachusetts 413-549-1020 (H) Amherst, MA 01003 Fax: 413-545-1801 ---------------------------------------------------------------------------- ---- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 04:25:07 1999 Date: Thu, 7 Jan 1999 10:12:17 +0100 (MET) From: Martin Neitzel Subject: Re: Jforum: Some J papers Hello Murray, > http://www.cs.ualberta.ca/~smillie/Jpage.html > The requested URL /~smillie/Jpage.html was not found on this server. Just omit the trailing "l": http://www.cs.ualberta.ca/~smillie/Jpage.htm is fine. (As is http://www.cs.ualberta.ca/~smillie/ ). Martin -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 05:38:44 1999 Date: Thu, 7 Jan 1999 12:22:43 +0200 (EET) From: Oleg Kobchenko Subject: Re: Jforum: Elementary question In-Reply-To: <01ce01be39c0$0ef390e0$23a056d1@seymourg> Here is a message I sent to comp.lang.apl on 1998/06/07. This very much resembles the problem. I used a different approach: an explicit conjunction rather than a tacit train as Greg Heil. The principle problem is that, albeit the pride of J implementation of OOP is the implicit switching of locales in response to `__loc' or `_num_' syntax, as said in the Locales Lab, there is no nice internal mecanism to deal with situations, when `loc' or `num' are an array (collection) or even just a reference (in case of named locales and a=.'locname' as reference). In all other OOP languages there is a familiar thing: if we have a collection and the items have a common method, they can be uniformly iterated over this method. - - - - - - - - - - - - - - - - - - - - - - - - - - artificial polymorphism model as of J 401 (resent) Here is a classic example from OOP. The Locales and OOP labs introduced the syntax convention name__obj -: name_numloc_, where numloc is from nonnegative integers and obj is the name of a noun, with the value of boxed numloc. This is used to simulate references to object instances in J 401. The attached example urges the necessity to generalize obj from a noun name to any expression resulting in numloc. -------------------------------------- shapes.txt artificial polymorphism model as of J v401 directory: user\shapes Load and try the example: load'user\shapes\shapes.ijs' report col Then study it: open'user\shapes\shapes.ijs' Relevant issues: 1. Is it possible to map an argument over verbs in a collection of objects ? 2. Is there a nicer way to express polymorphism ? Like it is done for field__obj <==> name_locale_ (1) Or like in JavaScript: obj.membfunc(par).func(par).field The idea is that in place of 'obj' in (1) there can be anything, not only a litteral name. 3. If it did not skip my attention, maybe it is worth while to generalize the syntax of (1) to allow for more intrinsic polymorphism rather than the examplified 'artificial' one. -------------------------------------- shapes.ijs require'user\shapes\pshape.ijs' require'user\shapes\psquare.ijs' require'user\shapes\ptri.ijs' require'user\shapes\pcircle.ijs' NB. retrieve a noun from object loc=: (,&'_'@[ ,&'_'@, ":@>@]) from=: ".@loc NB. retrieve a verb from object in=: conjunction def '((3 : (m. loc n.))0)y.' NB. define a collection col=: 0 0 conew 'pshape' col=: col,1 0 conew 'psquare' col=: col,0 2 conew 'ptri' col=: col,3 4 conew 'pcircle' col=: col,5 0 conew 'ptri' col=: col,0 6 conew 'psquare' NB. test retrieval mapped over collection 'x' from"_ 0 col 'y' from"_ 0 col 'y' (+&(from"_ 0&col)) 'x' 'y' (;&(from"_ 0&col)) 'x' NB. test atom verbs NB. `: can it be generalized to array of verbs? NB. Like, x=:+:`-:`*:`%: (3 1{x) `: 0 (1 2 3) + ` (< +:`x) 'type' in (0{col) '' 'type' in (1{col) '' report=: verb define r=. ,:;:'No Type X Y' for_i. i.#y. do. ri=.<'test' in (i{y.) i ri=.ri,<'type' in (i{y.) '' ri=.ri,<'x' from i{y. ri=.ri,<'test' in (i{y.) 'y' from i{y. r=. r,ri end. ) -------------------------------------- pshape.ijs coclass'pshape' create=:3 : 0 'x y'=: 2{.y.,0 0 empty'' ) destroy=:codestroy type=: verb def '''shape''' test=: 3 : 'y.' -------------------------------------- pcircle.ijs coclass'pcircle' coextend'pshape' create=: verb define create_pshape_ f. y. ) destroy=: verb define destroy_pshape_ f. y. ) type=: verb def '''circle''' -------------------------------------- psquare.ijs coclass'psquare' coextend'pshape' create=: verb define create_pshape_ f. y. ) destroy=: verb define destroy_pshape_ f. y. ) type=: verb def '''square''' -------------------------------------- ptri.ijs coclass'ptri' coextend'pshape' create=: verb define create_pshape_ f. y. ) destroy=: verb define destroy_pshape_ f. y. ) type=: verb def '''tri''' -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 07:41:48 1999 Date: Thu, 7 Jan 1999 14:29:30 +0200 (EET) From: Oleg Kobchenko Subject: Re: Jforum: Elementary question In-Reply-To: On Thu, 7 Jan 1999, Oleg Kobchenko wrote: > I used a different approach: an explicit conjunction rather than > a tacit train as Greg Heil. rather Henry Rich, oops. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 08:48:33 1999 Date: Thu, 07 Jan 1999 08:30:06 -0500 From: Cliff Reiter Subject: Re: Jforum: Some J papers Organization: Lafayette College Content-type: text/plain; charset=us-ascii References: <19990106230152Z13211-11899+304@scapa.cs.ualberta.ca> <369431B5.D1273B4A@math.umass.edu> Try http://www.cs.ualberta.ca/~smillie/Jpage.htm instead Murray Eisenberg wrote: > > Hello Keith, > > I clicked on the URL in your posting to forum@jsoftware.com, and your > server replied, "The requested URL /~smillie/Jpage.html was not found on > this server." > > smillie@cs.ualberta.ca wrote: > > > > The following four reports of mine are now > > available, both as Postscript files for the > > papers and as text files for the J scripts, > > at > > http://www.cs.ualberta.ca/~smillie/Jpage.html > > -- Clifford A. Reiter Mathematics Department, Lafayette College Easton, PA 18042 USA, 610-330-5277 ^^^ Note new phone exchange http://www.lafayette.edu/~reiterc -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 11:23:00 1999 From: smillie@cs.ualberta.ca Subject: Jforum: Apologies! Date: Thu, 7 Jan 1999 09:09:47 -0700 (MST) I'm sorry about the typo in the URL for my J papers. As some persons pointed out, the correct address is http://www.cs.ualberta.ca/~smillie/Jpage.htm I hope I have it correct this time! Thanks to the people who sent messages to the J forum. Keith -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 12:40:30 1999 Date: Thu, 07 Jan 1999 12:25:22 -0500 From: Eric Iverson Organization: Iverson Software Inc. Subject: Re: Jforum: Elementary question References: Oleg Kobchenko wrote: > In all other OOP languages there is a familiar thing: if we have > a collection and the items have a common method, they can be > uniformly iterated over this method. In J OOP, given a collection of objects, you can't do: method__collection arg and instead must do something like: for_i. collection do. method__i arg end. We agree this is a shortcoming in J OOP and did consider these issues at design time. We decided they introduced significant complexity and chose to ignore them in order to more quickly release the current restricted definition. We did look at it enough to convince ourselves that the current specs do not rule out such extension in the future. If you find yourself doing < for_i. c do. m__i arg end. > a lot, it might indicate a use of objects where arrays should be used. There might be a better design for the application. Possibly the global state data spread across the objects that requires iterations over object methods, should be a single array (possibly in an object) that can be directly manipulated as an array with the full power of J. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 13:24:22 1999 From: "Seymour Glass" Subject: Re: Jforum: Elementary question Date: Thu, 7 Jan 1999 13:05:56 -0500 -----Original Message----- From: Eric Iverson Date: Thursday, January 07, 1999 12:27 Subject: Re: Jforum: Elementary question >If you find yourself doing < for_i. c do. m__i arg end. > a lot, it >might indicate a use of objects where arrays should be used... I have up to now used < for_i. c do. m__i arg end. > (legitimately, I think: I have a collection of objects), and it has annoyed me because (1) if I need the results, I have to collect them manually; (2) it's not a tacit definition, and I like tacit definitions; (3) I didn't learn J just to end up writing a bunch of damn loops. But as a result of this thread I now have: onx_z_ =: ((] ` ]:) `: 6) ~ inlocalesx_z_ =: ((((]: onx) 18!:4)~)"0 _ ([ 18!:4) (18!:5)@(''"_)) which lets me replace the loop with c m inlocalesx arg - all tacit, no execute - and I'm a happy man. Henry Rich -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 14:28:56 1999 Date: Thu, 07 Jan 1999 20:15:38 +0200 From: Anssi Seppala Subject: Re: Jforum: Some J papers In-Reply-To: <19990106230152Z13211-11899+304@scapa.cs.ualberta.ca> Content-Transfer-Encoding: 8bit Is there any change to get these papers in RTF or TXT or Word-format? I have no PS printers and no utility to view PS documents. I'm just a simple WinNT user with MS Office 97. Anssi At 16:01 6.1.1999 -0700, you wrote: > > The following four reports of mine are now >available, both as Postscript files for the >papers and as text files for the J scripts, ------------------------------------------------------------------- Anssi Sepp�l� Konsultti, s�hk�markkinat ja s�hk�njakelu: Sovellukset ja ohjelmistot e-mail: anssi.seppala@enease.fi tel: +358 9 45400550 Enease Oy fax: +358 9 45400551 Mannerheimintie 66 A mob: +358 400 760077 FIN - 00260 HELSINKI, Finland http://www.kolumbus.fi/enease/ -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 15:19:06 1999 From: "Randy MacDonald" Subject: Re: Jforum: Some J papers Date: Thu, 7 Jan 1999 15:07:39 -0500 charset="iso-8859-1" Content-Transfer-Encoding: 8bit The Ghostscript freeware should run on your system. check out .... http://www.cs.wisc.edu/~ghost/ -----Original Message----- From: Anssi Seppala Date: January 7, 1999 3:48 PM Subject: Re: Jforum: Some J papers Is there any change to get these papers in RTF or TXT or Word-format? I have no PS printers and no utility to view PS documents. I'm just a simple WinNT user with MS Office 97. Anssi At 16:01 6.1.1999 -0700, you wrote: > > The following four reports of mine are now >available, both as Postscript files for the >papers and as text files for the J scripts, ------------------------------------------------------------------- Anssi Sepp�l� Konsultti, s�hk�markkinat ja s�hk�njakelu: Sovellukset ja ohjelmistot e-mail: anssi.seppala@enease.fi tel: +358 9 45400550 Enease Oy fax: +358 9 45400551 Mannerheimintie 66 A mob: +358 400 760077 FIN - 00260 HELSINKI, Finland http://www.kolumbus.fi/enease/ ---------------------------------------------------------------------------- ---- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 15:43:48 1999 Date: Thu, 7 Jan 1999 22:28:51 +0200 (EET) From: Oleg Kobchenko Subject: Re: Jforum: Some J papers In-Reply-To: <4.1.19990107201309.00b37890@pop.kolumbus.fi> Content-Transfer-Encoding: 8BIT Look for Ghostview. It is real breath of air for an NT user needing to work with .ps. RTF is not the best choice. .PDF maybe. On Thu, 7 Jan 1999, Anssi Seppala wrote: > Is there any change to get these papers in RTF or TXT or Word-format? I > have no PS printers and no utility to view PS documents. I'm just a simple > WinNT user with MS Office 97. > > Anssi > > > At 16:01 6.1.1999 -0700, you wrote: > > > > The following four reports of mine are now > >available, both as Postscript files for the > >papers and as text files for the J scripts, > > ------------------------------------------------------------------- > Anssi Sepp�l� > Konsultti, s�hk�markkinat ja s�hk�njakelu: Sovellukset ja ohjelmistot > > e-mail: anssi.seppala@enease.fi tel: +358 9 45400550 > Enease Oy fax: +358 9 45400551 > Mannerheimintie 66 A mob: +358 400 760077 > FIN - 00260 HELSINKI, Finland http://www.kolumbus.fi/enease/ > > -------------------------------------------------------------------------------- > J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 16:15:40 1999 Date: Thu, 7 Jan 1999 22:26:54 +0200 (EET) From: Oleg Kobchenko Subject: Re: Jforum: Elementary question In-Reply-To: <026301be3a68$64fd8a60$23a056d1@seymourg> In J OOP, given a collection of objects, you can't do: method__collection arg and instead must do something like: for_i. collection do. method__i arg end. We agree this is a shortcoming in J OOP and did consider these issues at And I do not agree that this is a shortcoming of J OPP. Well, of course the for. loop is a shortcoming of programming style, but with such technique as demonstrated by Henry Rich, (and which may gradualy become a part of the sytax) J has a potential to link the OOP with the `full power' of structured processing. Just consider not only method__(obj1;obj2;obj3) but also (meth1`meth2`meth3)__obj The for. loop is the fate of procedural languages, where are most implementations of OOP. J is functional, i.e. being able to produce and amend methods on the fly (see examples). It is also stucture bulk/scaled processing. Eric Iverson is right, the is no reason to, as a saying goes, shoot sparrows with a canon: when the data permits one shouldn't indulge in objects unnecessarily. But if it doesn't. If we have structures with only a few similar properties, like GUI controls, like all these examples from natural subject areas. Well, in fact J will be able to use the best of the two worlds. And with such structural power that was unseen before in the OOP world. On Thu, 7 Jan 1999, Seymour Glass wrote: > From: Eric Iverson > > >If you find yourself doing < for_i. c do. m__i arg end. > a lot, it > >might indicate a use of objects where arrays should be used... > I have up to now used < for_i. c do. m__i arg end. > (legitimately, > I think: I have a collection of objects), and it has annoyed me > because (1) if I need the results, I have to collect them manually; > (2) it's not a tacit definition, and I like tacit definitions; (3) I > didn't learn J just to end up writing a bunch of damn loops. I can't help but totally concurr with these arguments. > But as a result of this thread I now have: > > onx_z_ =: ((] ` ]:) `: 6) ~ > inlocalesx_z_ =: ((((]: onx) 18!:4)~)"0 _ ([ 18!:4) (18!:5)@(''"_)) When Bjorn's question first appeared I did think of using `cocurrent' and it's counterpart in a tacit fassion as an overt manifestation of what method__obj syntax is supposed to do in the guts of J. But my common sense prevented me from getting it finished reasoning with exhaustive overhead. Henry Rich was bold enough and implemented it in an immaculately compact solution. His inlocalesx works in `rank' style and works best with methods whose results are of the same shape, e.g. (nl 6) #@nl inlocalesx '' (nl 6) $@:>@nl inlocalesx '' NB. (*) A slightely different version will be needed for `boxed' or `each' style to recover for a flaw in (*). Or simply pad-box the method: (nl 6) <@$@:>@nl inlocalesx '' In fact the polymorphism issue, which we were discussing here, is tightly bound to another attribute of OOP: encapsulation, or `iteration in depth'. And I believe that it is another advantage of J to connect the implementation of OOP with namespaces (locales). In K they had to build the whole namespace structure in a fixed tree to provide for encapsulation with a powerful `show' feature. I would suggest that in J the same result can be achieved on the lightweight flat locale structure with recursive incapsulation of objects, plus the ability to reference the same instance from multiple embracing objects. -- olegyk -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 16:18:11 1999 Date: Thu, 07 Jan 1999 23:00:23 +0200 From: Anssi Seppala Subject: Re: Jforum: Some J papers In-Reply-To: <009f01be3a79$61031b80$71307018@randomac.ns.on.rogers.wave. ca> Thanks, With GSview The papers are at least readable although the printing was not succesfull forst time, but I will experiment. Anssi At 15:07 7.1.1999 -0500, you wrote: >The Ghostscript freeware should run on your system. > >check out .... http://www.cs.wisc.edu/~ghost/ -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 17:14:01 1999 From: Joseph Mann Subject: Re: Jforum: Some J papers Date: Thu, 7 Jan 1999 14:46:31 -0700 References: <4.1.19990107225655.00b34a80@pop.kolumbus.fi> Content-Transfer-Encoding: 8bit Not wanting this to descend into a ghostscript forum but ... the ps files wont print and frequently crash ghostscript because of missing fonts. This could be my fault - using linux and not Windows - but it is a RedHat 5.1 standard distribution, for those that care. anybody else have this problem? I usually don't. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 7 17:52:33 1999 From: "John D. Baker" Subject: Re: Jforum: Some J papers Date: Thu, 7 Jan 1999 15:10:15 -0500 charset="iso-8859-1" Keith, >Is there any change to get these papers in RTF or TXT or Word-format? I >have no PS printers and no utility to view PS documents. I'm just a simple >WinNT user with MS Office 97. I second that opinion. Have you consided converting your documents to adobe *.pdf forrmat. It's a short hop from postscript to *.pdf. Especially if you can pick up Acrobat distiller at the heavily discounted "education" cost. It seems *.pdf is becoming the standard format for typeset documents on the web. John Baker bakerjd@kos.net -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From ljdickey Fri Jan 8 12:37:36 1999 Subject: Re: Jforum: Some J papers I think that I can supply ".pdf" files for you, to save you the inconvenience of doing conversions. Would you like that? Lee From smillie@cs.ualberta.ca Fri Jan 8 12:46:14 1999 Subject: Re: Jforum: Some J papers From: smillie@cs.ualberta.ca Date: Fri, 8 Jan 1999 10:45:46 -0700 (MST) In-Reply-To: <199901081737.MAA02119@goedel.math.uwaterloo.ca> from "Lee Dickey" at Jan 8, 99 12:37:37 pm Lee, Thanks for your message. I must be awfully dense but I don't know what ".pdf" files are. Also what conversions do you have in mind? My Postscript files were created with the Apple Laserwriter driver in Windows 95. If there's a better driver, I'd like to know. Compatibility is a problem, and anything you can do to help will be greatly appreciated. Keith From ljdickey Fri Jan 8 15:01:49 1999 Subject: Re: Jforum: Some J papers Dear Keith, PDF stands for "Portable Document Format". I believe that it was invented by the Acrobat group at Adobe. The Acrobat reader is free for the asking (you may download it). Acrobat itself costs something. However there are certain conversion facilities that will take a postscript file (.ps) and turn it into and acrobat file (.pdf). I have used such a tool and have produced the four "pdf" files. They are in the directory ftp://watserv1.uwaterloo.ca/languages/j/help/smillie/ along with several other things you created. I suggest that you download these four files and put them in your directory. Then make these changes in your J page: http://www.cs.ualberta.ca/~smillie/Jpage.htm Where you have these two lines: Postscript file: jbegin.pdf J4.01 script file: jbegin.ijs add one more line so that it looks like this: Postscript file: jbegin.pdf Acrobat file: jbegin.pdf J4.01 script file: jbegin.ijs Make sure the "anchor" or "link" is in place so that the "jbegin.pdf" is clickable. Do the same for the Companion, the Stat Pkg, and the Windows Examples, by adding these lines in the right places: Acrobat file: jcomp.pdf Acrobat file: jsp.pdf Acrobat file: jwinex.pdf (with the appropriate links). Another hint: If your machine "cs.ualberta.ca" is a unix machine, add a link, so that the two names Jpage.htm Jpage.html point to the same content. The command to do this (on my unix machine) is ln Jpage.htm Jpage.html You get one more entry in the list of files, but you don't take up any more space on the disk drive. That way, you won't have to apologize to anyone if you give the "wrong" extender. All the best, Lee From ljdickey@math.uwaterloo.ca Fri Jan 8 15:01:50 1999 From: Lee Dickey Date: Fri, 8 Jan 1999 15:01:49 -0500 (EST) Subject: Re: Jforum: Some J papers Dear Keith, PDF stands for "Portable Document Format". I believe that it was invented by the Acrobat group at Adobe. The Acrobat reader is free for the asking (you may download it). Acrobat itself costs something. However there are certain conversion facilities that will take a postscript file (.ps) and turn it into and acrobat file (.pdf). I have used such a tool and have produced the four "pdf" files. They are in the directory ftp://watserv1.uwaterloo.ca/languages/j/help/smillie/ along with several other things you created. I suggest that you download these four files and put them in your directory. Then make these changes in your J page: http://www.cs.ualberta.ca/~smillie/Jpage.htm Where you have these two lines: Postscript file: jbegin.pdf J4.01 script file: jbegin.ijs add one more line so that it looks like this: Postscript file: jbegin.pdf Acrobat file: jbegin.pdf J4.01 script file: jbegin.ijs Make sure the "anchor" or "link" is in place so that the "jbegin.pdf" is clickable. Do the same for the Companion, the Stat Pkg, and the Windows Examples, by adding these lines in the right places: Acrobat file: jcomp.pdf Acrobat file: jsp.pdf Acrobat file: jwinex.pdf (with the appropriate links). Another hint: If your machine "cs.ualberta.ca" is a unix machine, add a link, so that the two names Jpage.htm Jpage.html point to the same content. The command to do this (on my unix machine) is ln Jpage.htm Jpage.html You get one more entry in the list of files, but you don't take up any more space on the disk drive. That way, you won't have to apologize to anyone if you give the "wrong" extender. All the best, Lee From smillie@cs.ualberta.ca Fri Jan 8 15:43:47 1999 Subject: Re: Jforum: Some J papers From: smillie@cs.ualberta.ca Date: Fri, 8 Jan 1999 13:43:38 -0700 (MST) In-Reply-To: <199901082001.PAA03141@goedel.math.uwaterloo.ca> from "Lee Dickey" at Jan 8, 99 03:01:49 pm Lee, Thanks for your reply. I was thinking that your suggestion would lead to something like you have just outlined. I'll attend to this shortly. Regards, Keith From owner-jsoftware@lists.interlog.com Fri Jan 8 16:03:19 1999 From: "Seymour Glass" Subject: Re: Jforum: Elementary question Date: Fri, 8 Jan 1999 15:50:11 -0500 -----Original Message----- From: Oleg Kobchenko Date: Thursday, January 07, 1999 15:27 Subject: Re: Jforum: Elementary question >...Just consider not only > > method__(obj1;obj2;obj3) > >but also > > (meth1`meth2`meth3)__obj Yes, that is what to shoot for. The problem with the current syntax is that the '__' above really needs to be a conjunction, akin to " or L:, that produces a verb which executes u. in the locales given by n. (or even v.); but __ already means something, so it can't be a conjunction. Maybe ISI will define an Object conjunction O: that does what you want, so you could write method O: (obj0,obj1,obj2) '' or method@(''"_) O: ] obj0,obj1,obj2 or (meth0 ` meth1 ` meth2 `: 0) O: (obj0,obj1,obj2) '' Till then, I agree that what we have is pretty good. Henry Rich -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 9 05:11:18 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Elementary question Date: Sat, 9 Jan 1999 10:04:59 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE3BB7.BD10C780" ------ =_NextPart_000_01BE3BB7.BD10C780 From: Seymour Glass[SMTP:glasss@mindspring.com] > Maybe ISI will define an Object conjunction O: > that does what you want, so you could write > > method O: (obj0,obj1,obj2) '' > > or > > method@(''"_) O: ] obj0,obj1,obj2 > > or > > (meth0 ` meth1 ` meth2 `: 0) O: (obj0,obj1,obj2) '' This sounds good to me. As it turned out then my original question was not so elementary after all. I thought that it was just me being stupid as usual not knowing how to do this in a simple way. It all started because I was thinking about listing not just names in a locale but also some more information about the objects at the same time. Something like having a command like ls and then give it options like ls -lia and get more details. Just knowing the names of objects is not always enough and it can be time consuming to manually issue for example $ # etc on nouns to find their sizes when you have many objects in a locale. Many interesting answer came to follow my simple or not so simple question. Thanks for all who contributed in the forum and others with personal notes. There are obviously quite a few people reading the forum who never contribute directly to the forum. /Gosi ------ =_NextPart_000_01BE3BB7.BD10C780 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IiMKAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABACAAAABSRTogSmZv cnVtOiBFbGVtZW50YXJ5IHF1ZXN0aW9uAGwLAQWAAwAOAAAAzwcBAAkACgAEADsABgAvAQEggAMA DgAAAM8HAQAJAAkALwAZAAYANwEBCYABACEAAAA4QTE0NUQxMkE4QTdEMjExOEI5QTJDQTFGRkMw MDAwMAAdBwEDkAYAEAYAABIAAAALACMAAQAAAAMAJgAAAAAACwApAAEAAAADADYAAAAAAEAAOQAA T0yEtzu+AR4AcAABAAAAIAAAAFJFOiBKZm9ydW06IEVsZW1lbnRhcnkgcXVlc3Rpb24AAgFxAAEA AAAWAAAAAb47t4QqEl0Ui6eoEdKLmiyh/8AAAAAAHgAeDAEAAAAFAAAAU01UUAAAAAAeAB8MAQAA ABAAAABnb3NpQGNlbnRydW0uaXMAAwAGEFOQaVADAAcQmgMAAB4ACBABAAAAZQAAAEZST006U0VZ TU9VUkdMQVNTU01UUDpHTEFTU1NATUlORFNQUklOR0NPTU1BWUJFSVNJV0lMTERFRklORUFOT0JK RUNUQ09OSlVOQ1RJT05POlRIQVRET0VTV0hBVFlPVVdBTlQAAAAAAgEJEAEAAACRBAAAjQQAAM8I AABMWkZ1WEFC7P8ACgEPAhUCqAXrAoMAUALyCQIAY2gKwHNldDI3BgAGwwKDMgPFAgBwckJxEeJz dGVtAoMzdwLkBxMCgH0KgAjPCdk78RYPMjU1AoAKgQ2xC2DAbmcxMDM5CvQM0HgxNDQN8AtVFFEL 8mMFAEAgCotsaTE4MDkC0WktGfMZ3AvCMTarDCETUG8T0GMFQEYDYf46CuEdqx6WDIIGUQbACGEM IEcLYAQQW1NNVIhQOmchwnNAbQuATGRzE1ALgGcuBaBtsl0bbTM2Gi8bMT4k7QMelieATWF5YmUg 0ElTSSAD8GwDIA2xxwuAJ/ADkU9iah7SBaDQbmp1bh7gaQIgKTC2OiTvG0c+H2cmrXQRgKkFQGRv B5F3LdJ5CGCDKEAAcHQsIHNvLqPxBaB1bGQoQAUQE9AKh/8qvyw/HpYwfzGPMp8HgC3AIwRwKmEg KG8pUDAsBTeBMTfCMikgJyf/M680uSvPJq8FsDivNL87X088rz2/Ps821EAoOIAi9l84YDdBXTxh N5s/30Dv/0H/RS8ljztvPH9GD0o/SC8XTJ9Nrx7hKDbSMCBgrzbDG0BShBHgYB9QMEPDPzd/OIkk XysUG1xPbyBUHmgEAC9BKfAjACBnb203EXQvYAeALhtWV1VB/wQgMEAtsAhwKOAwAAhgLaLLCfA2 wHlLgWlnC4AHQHwgcQpQE8AqMi7wBCBucx6wL0JlbBPgCfABkHL9XRBhAYAEkCkAKHBapygw8Tbx dWdoLaVb0V5SKeB7E8A2wSAn4CNBL0BcAHBuaTAAXmFiQHVdkV6Sa/9ekAPwYuE3AAfgWlEuEBtW /y3AWWELgCkAL0AHcAtQJ/D1LvB5Wq5JBUBgEWMBCsDnE9AwACfgY2FiQCfxXkP5ZeFua2LSAaBc chwwXfH/YuFekmIzXYAHgmYzFaBpMPtfEFdVYlyBB0AvUS9QYoHvBGAWEGYhAhByAMAqI2qEv1yx RDIe0QQgLeFvwnNsAfctsAdxWqdTbhFp8mLwHDC2ayfwEYB2akMpoW0DgX8wAHKzbcApAVoxXMJd YHb7boEFQG8FMCoxBCBysldV3XRhLRwwZmBz0mcRwG5E1w2wAZADEHNaoEpiQmRW82/Ca/RvZm/3 WWFekVdV/wdAZvEEIAnwYRJ0g1vRaTD/A6An4XFCKaJjwCLReWFaYbsAcGPRbF0QBAEKUCBuwRkb VmV4bABmsiQgI/le8HRjS4ADoHwhBjFaUdsowXSzaQXAAJB6LjNc0f8usnMBbjEAcF0RcBVXVWxZ /i5azCewg/ELgF/RXeJqUv0AgHdf4WkwcRKBwQbwFaD/B+BdAWaFBbFelWaEV1VdxvdaoFlAAHBr BCB/cmhSLmD7L2ApsXQFEG1xXEFmMW/C/27BffB0gx6wXMARoChBLcD9V1VwjwECIGPkB5CLsocx 3ykAbnFUIHMgCGBzfuFdwPswQWZRZgfRj/B1oGbBFhD8YWR5Ro4zV1WMwijgdUD/iBGNFyiQgmAe 0X7hWlGN93GFzS9HbwCQWswVMQABmeAAAAADABAQAAAAAAMAERAAAAAAQAAHMIBTwQ+1O74BQAAI MIBTwQ+1O74BHgA9AAEAAAAFAAAAUkU6IAAAAADq+w== ------ =_NextPart_000_01BE3BB7.BD10C780-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 9 06:45:34 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Elementary question Date: Sat, 9 Jan 1999 11:43:59 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE3BC5.9A91E000" ------ =_NextPart_000_01BE3BC5.9A91E000 From: Seymour Glass[SMTP:glasss@MINDSPRING.COM] > onx_z_ =: ((] ` ]:) `: 6) ~ > inlocalesx_z_ =: ((((]: onx) 18!:4)~)"0 _ ([ 18!:4) (18!:5)@(''"_)) This is actually quite brilliant and very useful !! /Gosi ------ =_NextPart_000_01BE3BC5.9A91E000 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IjILAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABACAAAABSRTogSmZv cnVtOiBFbGVtZW50YXJ5IHF1ZXN0aW9uAGwLAQWAAwAOAAAAzwcBAAkACwArADsABgBXAQEggAMA DgAAAM8HAQAJAAsAKQAPAAYAKQEBCYABACEAAAA5MjE0NUQxMkE4QTdEMjExOEI5QTJDQTFGRkMw MDAwMAAPBwEDkAYAEAMAABIAAAALACMAAQAAAAMAJgAAAAAACwApAAEAAAADADYAAAAAAEAAOQDg Xu1YxTu+AR4AcAABAAAAIAAAAFJFOiBKZm9ydW06IEVsZW1lbnRhcnkgcXVlc3Rpb24AAgFxAAEA AAAWAAAAAb47xVjcEl0Uk6eoEdKLmiyh/8AAAAAAHgAeDAEAAAAFAAAAU01UUAAAAAAeAB8MAQAA ABAAAABnb3NpQGNlbnRydW0uaXMAAwAGEKA5JvsDAAcQlAAAAB4ACBABAAAAZQAAAEZST006U0VZ TU9VUkdMQVNTU01UUDpHTEFTU1NATUlORFNQUklOR0NPTU9OWFo9OigoOik6NilJTkxPQ0FMRVNY Wj06KCgoKDpPTlgpMTg6NCkpIjAoMTg6NCkoMTg6NSlAKCIAAAAAAgEJEAEAAACTAQAAjwEAAM0C AABMWkZ16994bP8ACgEPAhUCqAXrAoMAUALyCQIAY2gKwHNldDI3BgAGwwKDMgPFAgBwckJxEeJz dGVtAoMzdwLkBxMCgH0KgAjPCdk78RYPMjU1AoAKgQ2xC2DAbmcxMDM5CvQM0HgxNDQN8AtVFFEL 8mMFAEAgCotsaTE4MDkC0WktGfMZ3AvCMTarDCETUG8T0GMFQEYDYf46CuEdqx6WDIIGUQbACGEM IEcLYAQQW1NNVAhQOmchwnNATUkgTkRTUFIi4EcukENPTV0bbTM2Gi89GzE+H2catR6WAiB4XxB6 XyA9H1AoKF3AIGAgXTopKHAfUPo2KMB+CoclDyYfHpYLgP0VoGMHQAeQJ8goQR9QJ6EDKMAcUCE6 NCl+KcgiMCAn8ChbLkUoMAEuUjUpQCgnJyJ4XykpI88k3RtcKd8gPFRoBAAscAQgANB0dYEHQGx5 IHF1aRPQfCBiBRA1gAcwAjA1IG5YZCB2BJA1oHURsGYydQMgISEyxTLFL0cubwCQMsUVMQA5wAAD ABAQAAAAAAMAERAAAAAAQAAHMOCB1/bEO74BQAAIMOCB1/bEO74BHgA9AAEAAAAFAAAAUkU6IAAA AABuxg== ------ =_NextPart_000_01BE3BC5.9A91E000-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sun Jan 10 05:00:23 1999 From: "Bjorn G. Helgason" Subject: Jforum: Switching locale Date: Sun, 10 Jan 1999 09:53:08 -0000 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by lists.interlog.com id EAA06140 I was playing a bit with switching locale to list shapes and such. One thing I can not understand and that is I switch to a locale and want to list contents and it brakes down. If I first make a list in the locale without using that list whatsoever it works. Very strange. Anyone understand this? ls=: 3 : 0 0 ls 0 : a_ls_=.18!:1 [0 b_ls_=:(y.<._1+#a_ls_){a_ls_ out 'locale : ',>b_ls_ 18!:4 [b_ls_ a_ls_=.nl x. out 'name:',(5#' '),'shape:',(5#' '),'count:' out_ls_ &. >[a_ls_ ) b_a_=.'bbb' a_a_=.'aa' aa=.1 2$ 3 4 5 out_z_=:1!:2&2 out_ls_=: 3 : 0 a_out_ls_=. y. 18!:4 [b_ls_ NB. Next line makes this work nl 0 NB. OBS! a line I am not using at all NB. makes the rest work. Very strange ! out_z_ (a_out_ls_),(5#'.'),(": $a_out_ls_~),(5#'.'),(": #a_out_ls_~) (a_out_ls_);($a_out_ls_~);(#a_out_ls_~) ) ls '' locale : a name: shape: count: a.....2.....2 b.....3.....3 out_ls_=: 3 : 0 a_out_ls_=. y. 18!:4 [b_ls_ NB. remove this next line and it brakes down NB. nl 0 NB. what is this line doing to make this work? out_z_ (a_out_ls_),(5#'.'),(": $a_out_ls_~),(5#'.'),(": #a_out_ls_~) (a_out_ls_);($a_out_ls_~);(#a_out_ls_~) ) ls '' locale : a name: shape: count: a.....2.....2 �syntax error: out_ls_ � (a_out_ls_);($a_out_ls_~);(#a_out_ls_~) /Gosi -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sun Jan 10 22:05:37 1999 From: "Seymour Glass" Subject: Re: Jforum: Switching locale Date: Sun, 10 Jan 1999 21:52:44 -0500 After experimentation, I find that in the last line of out_ls_, the a_out_ls_~ is returning a verb. I think it should return a noun (a_a_, in the first invocation). I changed it to ". a_out_ls_ and it returned null, meaning no noun found. This puzzles me, since a_out_ls_~ seems to be recognized in the previous line. It looks to me like a_out_ls_~ is not being executed in the correct locale (viz the locale of the 18!:4), but I have little conviction behind my analysis. Henry Rich -----Original Message----- From: Bjorn G. Helgason Date: Sunday, January 10, 1999 04:46 Subject: Jforum: Switching locale >I was playing a bit with switching locale to list shapes >and such. One thing I can not understand and that is >I switch to a locale and want to list contents and it brakes >down. If I first make a list in the locale without using that >list whatsoever it works. Very strange. Anyone understand this? > >ls=: 3 : 0 >0 ls 0 >: >a_ls_=.18!:1 [0 >b_ls_=:(y.<._1+#a_ls_){a_ls_ >out 'locale : ',>b_ls_ >18!:4 [b_ls_ >a_ls_=.nl x. >out 'name:',(5#' '),'shape:',(5#' '),'count:' >out_ls_ &. >[a_ls_ >) >b_a_=.'bbb' >a_a_=.'aa' > >aa=.1 2$ 3 4 5 >out_z_=:1!:2&2 > >out_ls_=: 3 : 0 >a_out_ls_=. y. >18!:4 [b_ls_ > >NB. Next line makes this work >nl 0 NB. OBS! a line I am not using at all > NB. makes the rest work. Very strange ! > >out_z_ (a_out_ls_),(5#'.'),(": $a_out_ls_~),(5#'.'),(": #a_out_ls_~) >(a_out_ls_);($a_out_ls_~);(#a_out_ls_~) >) > > ls '' >locale : a >name: shape: count: >a.....2.....2 >b.....3.....3 > > > >out_ls_=: 3 : 0 >a_out_ls_=. y. >18!:4 [b_ls_ > >NB. remove this next line and it brakes down >NB. nl 0 NB. what is this line doing to make this work? > >out_z_ (a_out_ls_),(5#'.'),(": $a_out_ls_~),(5#'.'),(": #a_out_ls_~) >(a_out_ls_);($a_out_ls_~);(#a_out_ls_~) >) > > ls '' >locale : a >name: shape: count: >a.....2.....2 >�syntax error: out_ls_ >� (a_out_ls_);($a_out_ls_~);(#a_out_ls_~) > >/Gosi > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 11 05:53:10 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Switching locale Date: Mon, 11 Jan 1999 10:36:09 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE3D4E.6E5BB580" ------ =_NextPart_000_01BE3D4E.6E5BB580 Content-Transfer-Encoding: quoted-printable From: Seymour Glass[SMTP:glasss@mindspring.com] > looks to me like a_out_ls_~ is not being executed in the correct > cale (viz the locale of the 18!:4), but I have little conviction > hind my analysis. When I make the verbs shorter and use short names this does not happen. So I think it appears that the choices of names has a relevance here as well. Plus that the names used were in different locales. Not a simple case to report. There is a purpose in using funny names so they do not likely collide with available names that will be listed. This here is doing pretty much the same: ls=3D: 3 : 0 loc=3D:18!:1 [0 loc=3D:(y.<._1+#loc){loc 18!:4 [loc nam=3D.nl 0 ut &. >[nam ) b_a_=3D.'bbb' a_a_=3D.'aa' ut_z_=3D: 3 : 0 nam1=3D. y. 18!:4 [loc NB. nl 0 NB. now it seems to be ok to remove this line??? (nam1);($nam1~);(#nam1~) ) ls 0 Works fine without the nl 0 in this case !?! But now ill not work with a name like this in the locale being operated = on: loc_a_=3D.'lockk' ls 0 =B3rank error: ut =B3 18!:4[loc =20 /Gosi ------ =_NextPart_000_01BE3D4E.6E5BB580 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IjAKAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABAB0AAABSRTogSmZv cnVtOiBTd2l0Y2hpbmcgbG9jYWxlAP4JAQWAAwAOAAAAzwcBAAsACgAkAAkAAQAaAQEggAMADgAA AM8HAQALAAoAEAArAAEAKAEBCYABACEAAABFQjhFMkZEQzM5QTlEMjExOEI5QTJDQTFGRkMwMDAw MABbBwEDkAYAgAUAABIAAAALACMAAQAAAAMAJgAAAAAACwApAAEAAAADADYAAAAAAEAAOQCgp38z Tj2+AR4AcAABAAAAHQAAAFJFOiBKZm9ydW06IFN3aXRjaGluZyBsb2NhbGUAAAAAAgFxAAEAAAAW AAAAAb49TjLf3C+O7Kk5EdKLmiyh/8AAAAAAHgAeDAEAAAAFAAAAU01UUAAAAAAeAB8MAQAAABAA AABnb3NpQGNlbnRydW0uaXMAAwAGEOVwY2kDAAcQ7gIAAB4ACBABAAAAZQAAAEZST006U0VZTU9V UkdMQVNTU01UUDpHTEFTU1NATUlORFNQUklOR0NPTUxPT0tTVE9NRUxJS0VBT1VUTFNJU05PVEJF SU5HRVhFQ1VURURJTlRIRUNPUlJFQ1RDQUxFKFZJWlQAAAAAAgEJEAEAAAAEBAAAAAQAAOkGAABM WkZ1NsbssP8ACgEPAhUCqAXrAoMAUALyCQIAY2gKwHNldDI3BgAGwwKDMgPFAgBwckJxEeJzdGVt AoMzdwLkBxMCgH0KgAjPCdk78RYPMjU1AoAKgQ2xC2BAbmcxMDM5CvRseGkzNg3wC1UUUQvyY40A QCAKixnQMTgwAtHgaS0xNDQN8AzQHMNZC1kxNgwhE1BvE9Bj9QVARgNhOgrhHZsehgyCZwZRBsAI YSBHC2AEEFtAU01UUDpnIbJzZEBtC4BkcxNQC4Bn8i4FoG1dG10Z/x53CoVIPiAgFaBvawQgdExv IAeAJtBpayeAYQJfCGB0X2xzX34SIAQAIG4eoCBiZfEjMSBleAWQKCAJgCiQ+QOgdGgngAWhFhAe 0CZHhmMHQCeAKHZpeiojMxWgK3NvZiojHEAhOhg0KSwpACggIEkgvRGAdieCAkArkQWgbivQbR7Q aQIgJkdoItEnYHndJ+BuB0ATsAQALgqHGk/7CoUKhVcqQAOgLfAAwCfBkyoyLjByYgQgc2gVsXcE kDBxKeB1EbA05CjAYc8HgQqFKjAooWRvB5Eo0rkRgHBwCfAxBgqFUydQ8y3wNxFuayiQBUA4AhGR /SohYQVAKjM1AC8QB5EswXc2Uy4BBCBhCoUWECuQdr8AcDtwLgAEkCfRBCB3PRDwbC4gUApAOok7 5DWxXyngPiAWEAqFKgFkBpBmvz2xAjAsRTDwB7Ao4WE04H8HcAtQKlEhwDQxJ1AWEHDfFbExCAsZ Mg8gxFQ9oyih/UJgcAhwQ5A1wSoBNbApMrBmdW5uMGA75HMnUP8qMTBgN2AowkPlJ6IwsCph3T5A aQ2wPhAucGgn4D1A/wMQAaArkTvkOqMD8D5AKQH7J5ETwWQ4XUaQKKFGpjdglykyE1ARwHQwYG11 EXC1KiNzNmE6MrwoUD0fQPwzIB9ACnYsUVJALTIbMAJbUrsoeS48Ll+IMSsjLFEpXHssUR9D5S0z U9BVuDZRPS5ulwMgCnYtwSY+YD5bNlFlQ+UpMrxiXyfwV5AnOmJa4CdD5SfwWpNhYXNbFlf3X3pa oFJcNlExnVeQIFTQVe9D5U5CPmD7V7JgVG8H4DnxEbAT4Ccjf01BJwBDNARgLjE3EySAbixlP2PA Q+UoXlIpO9QoJF5SfmSxI2T0WR//UdVSpzMmBbAnERyQY6BLQz8oET8UYLIqAyihQvMhP3ohMrxC LcFhM00RKNJ3/2hxS0U2QyeUNxMqBSxVKRT6bzggcjrAKdECIFE+LGDzWoQsUWtrWxZErBtGJsH1 Z1hcWtAzcCA5wQSQA2D+ch9AKCB0uXRBdvItM1a5pzKtRK8bMC9HR4BpQ+UFFTEAe4ADABAQAAAA AAMAERAAAAAAQAAHMMChunxLPb4BQAAIMMChunxLPb4BHgA9AAEAAAAFAAAAUkU6IAAAAAAxpQ== ------ =_NextPart_000_01BE3D4E.6E5BB580-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 11 13:55:40 1999 From: "Seymour Glass" Subject: Jforum: Re: Date: Mon, 11 Jan 1999 13:38:35 -0500 If you use poly =. 3 _10 3 4 & p. all will be well. I don't know exactly why. Henry Rich -----Original Message----- From: Andromeda Date: Monday, January 11, 1999 13:19 > > lets define a following polynomial : > > poly =. 3 _10 3 4"_ p. ] > > lets further define the first two derivatives : > (of course i've could done it easily by a capped double-fork like > f =. [: }. ] * i.@# but I'm just aiming at the use of D. in combination with p. ) > > drv_1 =. ("0) D.1 > drv_2 =. ("0) D.2 > > dpoly =. poly drv_1 > > then the evaluation around 0 like dpoly _2+i.5 gives as result the vector 26 _4 _10 8 50 , > which is OK. > > Now I define > > ddpoly =. poly drv_2 > > Instead of getting the vector _42 _18 6 30 54 I get a * valence error * > > Can someone explain me what I'm doing wrong ? > > /.....Milan > > ps. > > D.2 works fine with classic "tacit" functions like the cubic polynomial cb =. -. * *: > > ddcb =. cb drv_2 > > ddcb 2 3 4 gives _10 _16 _22 ,that's OK ,too. > > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 11 14:45:42 1999 Date: Mon, 11 Jan 1999 20:54:56 +0200 (EET) From: Oleg Kobchenko Subject: Re: Jforum: Merry Christmas to all! In-Reply-To: <199901050205.DAA01629@miles.gaertner.de> On Tue, 5 Jan 1999, Martin Neitzel wrote: > Oleg Kobchenko: > > > > (, {.) (,~ |.)"1 ({."0 _~ >:@i.@#) |. 'MERRY CHRISTMAS!' > > (|. , {:) (,~ |.)"1 |.\. 'HAPPY NEW YEAR!' ^^^^ > Which exemplifies: another solution may be a tad cuter but if it's > too late it may just become senseless ;-) Yes, yes, yes, this just what I was looking for. I clearly remembered that there is a construction even a primitive that produces partitions of increasing size (the word `prefix' also rang the bell). I had little time and desparately was scanning the page in J Dictionary for prefix. But once and again was lost in `cuboids of rank xxx, whose shape is in such relations to ....'. So I ended up with a self-brewed expression. There was a discussion some time ago in comp.lang.apl about the scientific stiffness of J Dictionary, notwithstanding its completeness, purity and appropriateness. That discussion was around the learning curve of J. Eventually it led to emerging of J Primer, which greatly helped to cure the need for a Gilman and Rose for J. (By the way I would suppose that the learning curve for J of an APLer would compare to the learning curve for Perl of a C programmer with some Unix experience.) Now there is a different, but quite vital need, as the number of J programmers (or as J developers team stubbornly call them `users' -- we are not C users, we are J users!) grow, for a Practical Reference Guide, so that the necessary primitive or construction be easily found. As an example, I have such book published by German branch of IBM on APL/2, organized in three columns: symbol and its name, exaples and description. Although it's in German, which I hardly know, I found it very useful for quick reference. -- olegyk -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 12 09:50:22 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: Switching locale Date: Tue, 12 Jan 1999 14:32:23 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE3E38.A0494680" ------ =_NextPart_000_01BE3E38.A0494680 I have got a few request for explanations of the verb ls ~ seems to be a mistery to many NB. ~ is called evoke and produces contents of the noun Here they come: ls_ls_ =: 3 : 0 NB. Create a verb ls in locale ls NB. call for locale number from the list of locales NB. Ex: in this example ls 0 will give NB. 'a';2;2 and 'b';3;3 loc_ls_=:18!:1 [0 NB. List all locales loc_ls_=:(y.<._1+#loc_ls_){loc NB. Get the y:th locale from the list 18!:4 [loc_ls_ NB. Switch to the y:th locale nam_ls_=.nl 0 NB. Get the list of nouns from the locale ut_ls_ &. >[nam_ls_ NB. Call the verb with each noun ) b_a_=.'bbb' NB. create noun b in locale a a_a_=.'aa' NB. create noun a in locale a ut_ls_=: 3 : 0 NB. Create verb ut in locale ls nam1_ls_=. y. NB. Get the name to work with 18!:4 [loc_ls_ NB. Switch the locale NB. nam1_ls_ contains the name of the noun saved in locale ls NB. nam1_ls_~ produces the contents of the noun NB. ~ is called evoke and produces contents of the noun NB. $ gives the shape NB. # gives the count NB. Ex: a from locale a will be shape 2 count 2 NB. giving 'a';2;2 as the result (nam1_ls_);($nam1_ls_~);(#nam1_ls_~) ) ls_ls_ 0 NB. Call ls in locale ls and get list from first locale nam_a_=.'namm' loc_a_=.'lockk' nam1_a_=.'nammi 1' ls_ls_ 0 These seem to work without problems. /Gosi ------ =_NextPart_000_01BE3E38.A0494680 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+Ig4OAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABAB0AAABSRTogSmZv cnVtOiBTd2l0Y2hpbmcgbG9jYWxlAP4JAQWAAwAOAAAAzwcBAAwADgAgABcAAgAqAQEggAMADgAA AM8HAQAMAA4AFgABAAIACgEBCYABACEAAABFNDU1MzREMzI1QUFEMjExOEI5QTJDQTFGRkMwMDAw MAAcBwEDkAYA7AQAABIAAAALACMAAQAAAAMAJgAAAAAACwApAAEAAAADADYAAAAAAEAAOQBAJJ1e OD6+AR4AcAABAAAAHQAAAFJFOiBKZm9ydW06IFN3aXRjaGluZyBsb2NhbGUAAAAAAgFxAAEAAAAb AAAAAb49TjLf3C+O7Kk5EdKLmiyh/8AAAAA6LjwhAB4AHgwBAAAABQAAAFNNVFAAAAAAHgAfDAEA AAAQAAAAZ29zaUBjZW50cnVtLmlzAAMABhD1mWjfAwAHEKwDAAAeAAgQAQAAAGUAAABJSEFWRUdP VEFGRVdSRVFVRVNURk9SRVhQTEFOQVRJT05TT0ZUSEVWRVJCTFNTRUVNU1RPQkVBTUlTVEVSWVRP TUFOWU5CSVNDQUxMRURFVk9LRUFORFBST0RVQ0VTQ09OVEVOAAAAAAIBCRABAAAAagMAAGYDAABm BwAATFpGdaUk9QD/AAoBDwIVAqgF6wKDAFAC8gkCAGNoCsBzZXQyNwYABsMCgzIDxQIAcHJCcRHi c3RlbQKDM3cC5AcTAoB9CoAIzwnZO/EWDzI1NQKACoENsQtgwG5nMTAzOQr7FFFFC/JjAEAgSSAR gHYQZSBnbwVAYSBmewfRFhBxClATwBuwBbFlwngLUW5hdGkCIAQgYG9mIHRoG0AbMHKQYiBscwqF fiARsMMT4AQgdG8gYhtAG6DmbQQAE9ByeR9SA4EgQDEKhU5CLh7RBAAgY40HQGwJgBywdm9rH6HO biIwE1AEcHVjB5EFoKsCMAnwdB13bghgbgqF/QqFSASQG0AdwSBABaAHgBY6JMweUF8ncSA9Osgg MyAn8DAgKGEhUv5DFhAdIB+iHgUhoAOgFaB/IeEbQB5XIVIh4hxzKiVuvnUG0ASQG7ADYR2zbB/x 5x2CKiQqqkV4J/Ap8R3A8yGxHMBhbQtQKnIoQQPwGSuBZ2kbMSDpJ2EnTDsyMhAioydiMgAzHzLQ JvcqMCeSJ+AxOCHZNBAgWyhRIVJMLXIrcgMt7DOXKHkuPC5fiDErIzOVKVx7KiHNIUNHEcAds3k6 HcAqFncs2wqFNCI0NHAzlSFDU30D8HQRcB9SOP0KhR0Qbfkzwy5uAyA0lTi2LWYkgqcEICzYPap1 dCeTJiFw/D5bPmUolCtyHcc8cTlgFykAPKEkiSkkzGJfYfc+wTKgR2AnKIQFACkDJIK7H4Ap6WEK hUcQRxNhMfD/KHVIChugSO8g1kJUJ+goqe8eA0JQKe8+NDE+lDkgIXCvPzw+YSXRH3B3BbBrRKP/ Os8nkzwbQV4hUlDmI3MLcf8fQVJ2JBke8BshIjBPv1bM/x7gIvcdwiOPJJghXyJvXM+tXd0kMNNY JHMRgHBWav4jYrkFoCSgOrYuxhuhLOLvSRYwhB+RY2MgEeBlI2gwd14ZMOELgGcx2FgkFhBzFHVs OrYoUOYpOyj2JFtnbEEjbIhFnycqTlZ3NVMp3F/TZzjBLWMs02Z+aRGgceE9qj35RxM+YW3OJzMp RxNaIWtrdRYZzPtQ1HSHaTsgdRYKjxocb1bveX93SHaPGmdUHdARsB7zv1LrCGAFQGAhAmAfIS4k zLgvR28AkHvlFTEAg1AAAAMAEBAAAAAAAwAREAAAAABAAAcw4Cuw6zY+vgFAAAgw4Cuw6zY+vgEe AD0AAQAAAAUAAABSRTogAAAAAGJ5 ------ =_NextPart_000_01BE3E38.A0494680-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 12 19:52:09 1999 From: "Mark Leeds" Subject: Jforum: dummy variables in verbs Date: Tue, 12 Jan 1999 19:27:24 -0800 boundary="----=_NextPart_000_002E_01BE3E61.9510AB40" This is a multi-part message in MIME format. ------=_NextPart_000_002E_01BE3E61.9510AB40 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks to everyone who answered my question about replacing columns in matrices. It helped a lot but I have another question. I have a verb likelihood that I define in the following way : likelihood =3D: verb define 'AFGCynr' =3D. y. so the verb has seven parameters with some lines of code below this. ) The verb works if I call it=20 the following way in the ijx file :=20 likelihood A;F;G;C;y;n;r the problem is that I only want A to be a dummy variable in the sense that I also want to be able to call likelihood with the line likelihood X;F;G;C;y;n;r I noticed that if A is still alive in the ijx session, then with this call to likelihood, J still uses this value of A to evaluate the function. It doesn't use X. Is it possible to tell the function likelihood that A is just a dummy variable so that it=20 doesn't use A to evaluate the function.=20 If this is a bad question and you just want to tell me where to read about this, that would be fine also. Thanks a lot. ------=_NextPart_000_002E_01BE3E61.9510AB40 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Thanks to everyone who answered = my
question about = replacing=20 columns in
matrices. It helped a lot but I have = another
question.
 
I have a verb likelihood that I = define in the=20 following way :
 
likelihood =3D: verb = define
 
'AFGCynr' =3D. y.
 
so the verb has seven = parameters
with some lines of code below = this.
 
)
 
The verb works if I call it =
the following way in the ijx file :=20
 
likelihood = A;F;G;C;y;n;r
 
the problem is that I only want A to = be a dummy=20 variable in the sense
that I also = want to be able=20 to call likelihood  with the line
 
likelihood = X;F;G;C;y;n;r
 
I noticed that if A is still alive = in the ijx=20 session, then with this
call to likelihood, J still uses = this value of=20 A
to evaluate = the function. It=20 doesn't use X. Is it possible to tell the
function likelihood that A is just a dummy variable = so that it=20
doesn't use A to evaluate=20 the function.
 
If this is a bad question and you just want to tell = me=20 where
to read about this, that would be fine also. Thanks = a=20 lot.
 
 
------=_NextPart_000_002E_01BE3E61.9510AB40-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 13 03:40:55 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: dummy variables in verbs Date: Wed, 13 Jan 1999 08:30:40 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE3ECF.41444C60" ------ =_NextPart_000_01BE3ECF.41444C60 From: Mark Leeds[SMTP:m.leeds@gte.net] > I have a verb likelihood that I define in the following way : > > likelihood =: verb define > 'AFGCynr' =. y. > > The verb works if I call it > the following way in the ijx file : > > likelihood A;F;G;C;y;n;r > > likelihood X;F;G;C;y;n;r > > I noticed that if A is still alive in the ijx session, then with this > call to likelihood, J still uses this value of A > to evaluate the function. It doesn't use X. Is it possible to tell the > function likelihood that A is just a dummy variable so that it > doesn't use A to evaluate the function. Try to use out to investigate what you are trying to do out=:1!:2&2 likelihood =: verb define out y. 'AFGCynr' =. y. out AFGCynr 'A F G C y n r' =. y. out A out F out G out C out y out n out r ) likelihood 'AHA';'EFF';'GE';'CE';'why';'enn';'err' > > If this is a bad question and you just want to tell me where > to read about this, that would be fine also. Thanks a lot. There is no bad question. What you were doing was creating one noun inside the verb with all the arguments you were passing in them. The name A that you had defined outside the verb was also used inside the verb. There is no A created inside. Notice the difference between 'AFGCynr' =. y. and 'A F G C y n r' =. y. 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In the samples I looked at this attachment takes up about twice the space as the message itself. For example, one of your recent messages had 1325 characters in the body of the message. and the MIME attachment (which I have enclosed) there are an additional 2570 characters. I imagine that this is something that you have control over, via some sort of set-up options. If this is useful to anyone, you probably want to keep it. If not, you might prefer to turn it off. 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Lee Dickey -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 13 17:48:46 1999 Date: Wed, 13 Jan 1999 17:48:02 -0500 From: Howard Peelle Subject: Re: Jforum: Merry Christmas to all! Content-type: text/plain; charset=us-ascii References: Oleg Kobchenko wrote: > ... > > Now there is a different, but quite vital need, as the number of > J programmers (or as J developers team stubbornly call them > `users' -- we are not C users, we are J users!) grow, for a > Practical Reference Guide, so that the necessary primitive or > construction be easily found. ... I have prepared "A Summary of J Language" (17 pages) in a format with Symbol, Name, Definition, Example in columns for verbs (monads, dyads), adverbs, conjunctions, etc. plus brief description of hooks and forks, and scripts. This summary is part of a booklet on "Teaching Secondary Mathematics with J: Workshops" (about 90 pages) which has been used for several years. If you would like a copy, let me know. Howard A. Peelle -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 13 17:50:06 1999 From: "Nichols, Peter" Subject: Jforum: Reading in an Excel Spreadsheet Date: Wed, 13 Jan 1999 16:28:21 -0600 charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by lists.interlog.com id RAA17813 Hello Everyone, I''m still trying to figure out how to read in a spread sheet. This is as far as I'm getting. It does open the spreadsheet but then dies when I call xlreadr. Thanks for any help. require 'system\examples\ole\excel\xlutil.ijs' xl_read=: 3 : 0 wd 'pc excel' NB. parent to hold ole child wd 'cc xl oleautomation:excel.application' NB. create excel.application object wd 'oleset xl base visible 1' NB. set base visible property to 1 wd 'oleget xl base workbooks' NB. get workbooks object as temp wd 'oleid xl wb' NB. temp to permanent as workbooks wd 'olemethod xl wb open s:\spr\test.xls' NB. open workbook wd 'oleget xl base worksheets' NB. get worksheet object as temp wd 'oleid xl ws' NB. temp to permanent as worksheets z=: xlreadr 'wb ws 1 1 20 20' NB. THIS LINE GIVES the ERROR BELOW wd 'olemethod xl base quit' NB. quit ) xl_read '' �domain error: wd � xlcmd'base run ',jm,'!',arg -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From reffy1@airmail.net Wed Jan 13 18:57:40 1999 From: Dick Ulrich Subject: re: Jforum: Apology (Was: tnef files Date: 13 Jan 99 17:47:34 -0600 X-ID: 9AFE1E8177EF11D2A29D00A0CC3A26E2 This is a multi-part message in MIME format. --X-X-X-X-X-X--NeoPlanet-MIME-TEXTandHTML--X-X-X-X-X-X-X10613881-X-X You are forgiven Lee :) Dick Ulrich Download Neoplanet at http://www.neoplanet.com --X-X-X-X-X-X--NeoPlanet-MIME-TEXTandHTML--X-X-X-X-X-X-X10613881-X-X You are forgiven Lee :)

Dick Ulrich


Download NeoPlanet! --X-X-X-X-X-X--NeoPlanet-MIME-TEXTandHTML--X-X-X-X-X-X-X10613881-X-X-- From ljdickey Thu Jan 14 05:44:59 1999 Subject: re: Jforum: Apology (Was: tnef files I have seen that mistake so many times, and know how irritating it can be. One of the things that irritates me about the APL news group is two guys carrying on a personal conversation. From owner-jsoftware@lists.interlog.com Thu Jan 14 13:41:49 1999 Date: Thu, 14 Jan 1999 13:25:35 -0500 From: Les Zielinski Organization: AEtna Canada Subject: Re: Jforum: Merry Christmas to all! References: <369D22A2.AA015EB9@educ.umass.edu> hapeelle@educ.umass.edu wrote: > > Oleg Kobchenko wrote: > > ... > > > > Now there is a different, but quite vital need, as the number of > > J programmers (or as J developers team stubbornly call them > > `users' -- we are not C users, we are J users!) grow, for a > > Practical Reference Guide, so that the necessary primitive or > > construction be easily found. ... > > I have prepared "A Summary of J Language" (17 pages) > in a format with Symbol, Name, Definition, Example > in columns for verbs (monads, dyads), adverbs, conjunctions, > etc. plus brief description of hooks and forks, and scripts. > This summary is part of a booklet on > "Teaching Secondary Mathematics with J: Workshops" > (about 90 pages) which has been used for several years. > If you would like a copy, let me know. > Howard A. Peelle > > -------------------------------------------------------------------------------- > J Forum: for information about this list, see http://www.jsoftware.com/forum.htm I am interested in the "A Summary of J Language". Thanks, Les M. Zielinski -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 14 15:35:23 1999 Date: Thu, 14 Jan 1999 22:12:17 +0200 (EET) From: Oleg Kobchenko Subject: Re: Jforum: Switching locale In-Reply-To: <002c01be3d0d$7790cc80$4ea156d1@seymourg> Content-Type: MULTIPART/MIXED; BOUNDARY="2093029708-1406260380-916344737=:26292" This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. 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Date: Thu, 14 Jan 1999 18:28:17 -0500 charset="iso-8859-1" In a message to the Jforum you wrote: > I have prepared "A Summary of J Language" (17 pages) > in a format with Symbol, Name, Definition, Example > in columns for verbs (monads, dyads), adverbs, conjunctions, > etc. plus brief description of hooks and forks, and scripts. > This summary is part of a booklet on > "Teaching Secondary Mathematics with J: Workshops" > (about 90 pages) which has been used for several years. > If you would like a copy, let me know. I am currently writing an introductory textbook for J whose working title is "J For Actuaries" The materials which you mentioned might be useful to me. Therefore I would like to receive a copy of the summary or better still, the 90 page booklet. Please send me information on how I can acquire a copy? Thank you, Barry Savage mailto:bvsavage@earthlink.net http://www.bsavage.net -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 14 20:42:16 1999 From: Ajith Prasad Subject: RE: Jforum: Merry Christmas to all! Date: Fri, 15 Jan 1999 09:27:56 +0800 Importance: high X-Priority: 1 charset="ISO-8859-1" Would be nice if the booklet is included at the J website together with the other papers/articles shown under "Resources". The website includes a reference to J.E.H. Shaw's homepage: http://www.warwick.ac.uk/statsdept/Staff/JEHS/index.html from where the "Warwick Guide to J" can be downloaded. This seems more detailed than the "J Primer" but less formidable than the "J Introduction and Dictionary". Great to know that a textbook on J applications is in the works. -----Original Message----- From: Barry Savage [mailto:bvsavage@earthlink.net] Sent: Friday, January 15, 1999 7:28 AM Subject: Re: Jforum: Merry Christmas to all! In a message to the Jforum you wrote: > I have prepared "A Summary of J Language" (17 pages) > in a format with Symbol, Name, Definition, Example > in columns for verbs (monads, dyads), adverbs, conjunctions, > etc. plus brief description of hooks and forks, and scripts. > This summary is part of a booklet on > "Teaching Secondary Mathematics with J: Workshops" > (about 90 pages) which has been used for several years. > If you would like a copy, let me know. I am currently writing an introductory textbook for J whose working title is "J For Actuaries" The materials which you mentioned might be useful to me. Therefore I would like to receive a copy of the summary or better still, the 90 page booklet. Please send me information on how I can acquire a copy? Thank you, Barry Savage mailto:bvsavage@earthlink.net http://www.bsavage.net ---------------------------------------------------------------------------- ---- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 15 12:45:38 1999 Date: Fri, 15 Jan 1999 17:35:39 +0200 (EET) From: Oleg Kobchenko Subject: Re: Jforum: Reading in an Excel Spreadsheet In-Reply-To: <01074BD4EEC4D1118E3200805F6542A7177D87@SPRDALLAS2> On Wed, 13 Jan 1999, Nichols, Peter wrote: > Hello Everyone, I''m still trying to figure out how to read in a spread > sheet. This is as far as I'm getting. It does open the spreadsheet but > then dies when I call xlreadr. Thanks for any help. > > > require 'system\examples\ole\excel\xlutil.ijs' > > xl_read=: 3 : 0 > permanent as worksheets > z=: xlreadr 'wb ws 1 1 20 20' NB. THIS LINE GIVES the Your problem is that you pass wb ws into the proc. wb and ws is J internal OLE stubs, they mean nothing to the J macro called jreadr that sits in the Excel VBA code in jmacros.xls. Just get to the VBA debugger and see that the passed values are in fact 'wb?' and 'ws?', which are strings and the required parameters should be ints. The correct call should look like: z=: xlreadr '1 1 1 1 20 20' or simply z=: xlreadr '1 1 20 20' !!! Make sure you have read xlutils.ijs and jmacros.* from beginning to end several times. Here is one magic sequence, I am writing from memory, sorry for possible mistakes: NB. just open this in J NB. step over each line with Ctrl-R reqiuire'system\examples\ole\excel\xlutil.ijs' xlopen'' xlshow'' NB. (optional) xlcmd'jinfo *hello, world!' NB. tester xlcmd'wb add' NB. add new book (i.2 2) xlwriter '1 1' NB.put some stuff there xlreadr'1 1 2 2' NB. get boxed result ".&> xlreadr'1 1 2 2' NB. get unboxed result ('=sum(A1:A2)';'=sum(B1:B2)') xlwriter'3 1' NB. put sums ".&> xlreadr'3 1 1 2' NB. get result +/".&> xlreadr'1 1 2 2' NB. verify it's true xlquit'' NB. exit w/o save -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 15 12:45:44 1999 From: "Simon Garland" Subject: Jforum: http server Date: Fri, 15 Jan 1999 15:38:21 +0100 charset="iso-8859-1" does anyone have a slightly hacked version of the J socket server code that acts as an HTTP server (handles header records, GET/POST etc..)? I'd prefer not to write it myself unless I have too.. /Simon -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 15 12:45:45 1999 Date: Fri, 15 Jan 1999 16:23:27 +0200 (EET) From: Oleg Kobchenko Subject: RE: Jforum: Switching locale In-Reply-To: <01BE3D4E.6DDE9640@geisli-294.centrum.is> NB. Switching locale demo NB. open in J seesion and Ctrl-W over it NB. The problem seems to be eliminated NB. by ANY call in verb 'out_ls_' to a verb NB. in locale `z' w/o the _z_ suffix. NB. Try to apply any of (1-4) changes NB. to see the error dissappear. b_locA_=. 'bbb' NB. init stuff for demo a_locA_=. 'aa' ls=: (3 : 0) smoutput 'locale : ', b_aux_=. 'locA' cocurrent nl 0 ) out_aux_=: (3 : 0) NB. called verb 18!:4 Subject: RE: Jforum: Switching locale In-Reply-To: <01BE3D4E.6DDE9640@geisli-294.centrum.is> (0 : 0) NB. COMMENT Is there a reason for adverbs and conjs defined in a class to fail switching to the object's locale ? If yes, how to circumvent this ? This is really important for such applications as a file reader, having such adverbs as `grep' or `map', which provide iteration over file chunks. They assume a verb that determines pass-through conditions or applies a transformation. The following code demonstrates the problem. ) NB. ------------------------------ user\classes\ptry.ijs coclass'ptry' thisV=: coname thisA1=: 1 : 'u.@coname' thisA2=: 1 : 'u.@thisV' thisC1=: 2 : 'v.@u.@coname' thisC2=: 2 : 'v.@u.@thisV' (0 : 0) NB. COMMENT in base locale: load'user\classes\ptry.ijs' o=. conew 'ptry' > thisV__o'' 0 NB. this true object's locale > thisA1__o'' base NB. no locale switch > thisA2__o'' |value error: thisV | >thisA2__o'' NB. hence class verbs fail > thisC1__o ] '' base NB. ditto > thisC2__o ] '' |value error: thisV | >thisC2__o]'' ) -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 15 20:10:40 1999 From: "Donald Pittenger" Subject: Jforum: Bezier graphs Date: Fri, 15 Jan 1999 16:54:19 -0800 boundary="----=_NextPart_000_0010_01BE40A7.B17F2B10" This is a multi-part message in MIME format. ------=_NextPart_000_0010_01BE40A7.B17F2B10 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Has anyone drawn 2-D Bezier graphs using J version 4? If so, might you post some code and help tips so that I can try such = work? Thanks. Donald Pittenger ------=_NextPart_000_0010_01BE40A7.B17F2B10 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Has anyone drawn 2-D Bezier graphs = using J=20 version 4?
 
If so, might you post some code and = help tips so=20 that I can try such work?
 
Thanks.
 
Donald = Pittenger
------=_NextPart_000_0010_01BE40A7.B17F2B10-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From jkt@pocus.hexagon.com Sat Jan 16 18:35:00 1999 In-Reply-To: <199901131417.JAA03850@math.uwaterloo.ca> Content-Transfer-Encoding: quoted-printable Date: Sat, 16 Jan 1999 15:16:20 -0800 From: "Joey K. Tuttle" Subject: Re: Jforum: Apology (Was: tnef files At 9:17 -0500 1999/01/13, Lee Dickey wrote: >To the readers of Jforum: > >Please accept my apology for sending a message to >the list for a message that was intended for only >one reader. > >Lee Dickey > No apology needed - I'm sure many others feel as you do about the profusion= of garbage (almost an anagram of baggage) that comes along with Email these= days. My pet peeve is HTML - in my mail client, I get an unformated mess,= even though the "clear" text was originally included redundantly in the mes= sage.... Joey Tuttle - Magnacom Corp, Aptos Phone: (831) 685-4777 jkt@hexagon.com FAX: (831) 685-4779 From owner-jsoftware@lists.interlog.com Sun Jan 17 00:14:54 1999 From: "John D. Baker" Subject: Jforum: Project Manager (d) file markings. Date: Sat, 16 Jan 1999 23:57:20 -0500 charset="iso-8859-1" Chris, I've just run across a "feature" of the J project manager that is probably frustrating other users as well. When you mark a file as dev only (d) you cannot place it before an unmarked source file. Eg. I cannot do: sourcefile debuginit (d) standardinit If you try and trick the system by turning off the debug (d) and moving the file to the correct position the instant you turn it back on the (d) goes to the bottom of all non (d)'ed source files. Being able to place debug scripts anywhere in the source sequence and have them executed exactly in the order they appear is very useful for developement. I would suspect that just building the result script in the order the user prescribes is easiar than what the pjm is doing right now. John Baker -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sun Jan 17 13:20:17 1999 From: "Simon Garland" Subject: Jforum: VB "features" Date: Sun, 17 Jan 1999 17:45:26 +0100 charset="iso-8859-1" interesting article at: http://www.vb-zone.com/upload/free/features/vbpj/1999/mckinney/mckinney1.asp #1 -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sun Jan 17 16:51:28 1999 From: "David Vincent-Jones" Subject: Jforum: Counting problem Date: Sun, 17 Jan 1999 13:17:51 -0800 I need to be able to count the occurrence positions of random numbers. The following is obvious: +/\"1(i.6)=/?.15#6 1 1 1 1 1 2 2 2 2 2 2 2 3 4 4 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 1 2 2 2 2 2 2 0 0 0 1 1 1 1 1 1 1 2 2 2 2 3 0 1 1 1 1 1 2 3 3 3 3 4 4 4 4 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 but what I am really looking for is as follows 1 0 0 0 0 2 0 0 0 0 0 0 3 4 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 2 2 2 3 0 1 0 0 0 0 2 3 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 Is there an easy solution that somebody can offer? David V-J -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sun Jan 17 17:25:34 1999 Date: Sun, 17 Jan 1999 17:04:29 -0500 From: Cliff Reiter Subject: Re: Jforum: Counting problem Organization: Lafayette College Content-type: text/plain; charset=us-ascii References: <004901be425f$1f006b00$100881ce@desktop.lafayette.edu> I think that multiplying your partial result by its partial sums works: (*+/\"1)(i.6)=/?.15#6 Best, Cliff David Vincent-Jones wrote: > > I need to be able to count the occurrence positions of random numbers. > The following is obvious: > > +/\"1(i.6)=/?.15#6 > 1 1 1 1 1 2 2 2 2 2 2 2 3 4 4 > 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 > 0 0 1 1 1 1 1 1 1 2 2 2 2 2 2 > 0 0 0 1 1 1 1 1 1 1 2 2 2 2 3 > 0 1 1 1 1 1 2 3 3 3 3 4 4 4 4 > 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 > > but what I am really looking for is as follows > 1 0 0 0 0 2 0 0 0 0 0 0 3 4 0 > 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 > 0 0 1 0 0 0 0 0 0 2 0 0 0 0 0 > 0 0 0 1 0 0 0 0 0 0 2 2 2 2 3 > 0 1 0 0 0 0 2 3 0 0 0 4 0 0 0 > 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 > > Is there an easy solution that somebody can offer? > > David V-J > > -------------------------------------------------------------------------------- > J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -- Clifford A. Reiter Mathematics Department, Lafayette College Easton, PA 18042 USA, 610-330-5277 ^^^ Note new phone exchange http://www.lafayette.edu/~reiterc -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sun Jan 17 22:00:02 1999 From: "David Vincent-Jones" Subject: Re: Jforum: Counting problem Date: Sun, 17 Jan 1999 18:31:08 -0800 ----- Original Message ----- From: Cliff Reiter Sent: January 17, 1999 2:04 PM Subject: Re: Jforum: Counting problem >I think that multiplying your partial result by its partial sums >works: > >(*+/\"1)(i.6)=/?.15#6 > Cliff; Thanks, very simple and just what I needed but...... how does it work ? (*/\"1)(i.6)=/?.15#6 does not look very useful by itself David -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 18 07:54:28 1999 Organization: Voxel From: "Andrew Nikitin" Date: Mon, 18 Jan 1999 11:49:15 +0200 (EET) Subject: Jforum: local variables In early js user was able to define local verb in explicit definition and use it in it without restrictions. Situation now changed: (this is not real script, but pure problem) test=: 3 : 0 f1=.+: f2=.3 : 'f1 f1 y.' f2 y. ) test 3 |value error: f1 | f1 f1 y. So, we can't use defined local verb f1 in local verb f2. I have discovered this when my old scripts refused to work. Is this behaviour change sporadic or it follows some clever reasons? nsg -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 18 09:31:05 1999 Organization: Voxel From: "Andrew Nikitin" Date: Mon, 18 Jan 1999 15:36:08 +0200 (EET) Subject: Jforum: length/angle I have some troubles with using monadic *. (length/angle) primitive. I have experienced this with j402/windows 95 running p100. *.271j1 |domain error | *.271j1 *._271j1 271.002 3.1379 For the most of other (but not all) complex numbers *. seems to work fine. Can anybody explain such strange behaviour of *.? What magical properties does 271j1 have? Please, email me if this result is (or isn't) reproducible on other systems, especially on non wintel platforms. nsg -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 18 10:11:53 1999 Date: Mon, 18 Jan 1999 09:36:40 -0500 From: Cliff Reiter Subject: Re: Jforum: Counting problem Organization: Lafayette College Content-type: text/plain; charset=us-ascii References: <000501be428a$c7c5c660$190881ce@desktop.lafayette.edu> David, (i.6)=/?.15#6 NB. Your random array 1 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 1 0 1 0 0 0 0 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 (+/\"1)(i.6)=/?.15#6 NB. Array of partial row sums 1 1 1 1 1 2 2 2 2 2 2 2 3 4 4 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 1 2 2 2 2 2 2 0 0 0 1 1 1 1 1 1 1 2 2 2 2 3 0 1 1 1 1 1 2 3 3 3 3 4 4 4 4 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 (*+/\"1)(i.6)=/?.15#6 NB. A hook (* +/\"1) that 1 0 0 0 0 2 0 0 0 0 0 0 3 4 0 NB. gives the product of 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 NB. the previous two results 0 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 0 0 0 3 0 1 0 0 0 0 2 3 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 David Vincent-Jones wrote: > > ----- Original Message ----- > From: Cliff Reiter > To: > Sent: January 17, 1999 2:04 PM > Subject: Re: Jforum: Counting problem > > >I think that multiplying your partial result by its partial sums > >works: > > > >(*+/\"1)(i.6)=/?.15#6 > > > > Cliff; > Thanks, very simple and just what I needed but...... > how does it work ? > > (*/\"1)(i.6)=/?.15#6 does not look very useful by itself > > David > -- Clifford A. Reiter Mathematics Department, Lafayette College Easton, PA 18042 USA, 610-330-5277 ^^^ Note new phone exchange http://www.lafayette.edu/~reiterc -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From ljdickey Mon Jan 18 10:15:52 1999 Subject: Re: Jforum: length/angle I tried your number on a unix system using J 3.05. Your error appeared there. Using J7 (1993) on a Mac, no error with this number. From ljdickey Mon Jan 18 10:54:14 1999 Subject: Re: Jforum: Counting problem What is the difference between ? and ?. ? a =. 15#6 ?. a It is hard to tell, by experiment. Lee From reiterc@lafvax.lafayette.edu Mon Jan 18 12:31:01 1999 Date: Mon, 18 Jan 1999 12:30:15 -0500 From: Cliff Reiter Subject: Re: Jforum: Counting problem Reply-to: reiterc@lafvax.lafayette.edu Organization: Lafayette College Content-type: text/plain; charset=us-ascii References: <199901181554.KAA07175@goedel.math.uwaterloo.ca> Lee Dickey wrote: > > What is the difference between ? and ?. > > ? a =. 15#6 > ?. a > > It is hard to tell, by experiment. > > Lee Hi Lee, ?. always begins with the default random seed which allows easy duplication of "random" experiments & sharing of random examples as in recent illustrations. Cliff -- Clifford A. Reiter Mathematics Department, Lafayette College Easton, PA 18042 USA, 610-330-5277 ^^^ Note new phone exchange http://www.lafayette.edu/~reiterc From ljdickey Mon Jan 18 12:42:49 1999 Subject: Re: Jforum: Counting problem Great! Thanks! Lee From owner-jsoftware@lists.interlog.com Mon Jan 18 14:42:37 1999 From: "Roger Hui" Subject: Jforum: Re: local variables Date: Mon, 18 Jan 1999 10:51:47 -0500 charset="iso-8859-1" Andrew Nitkitin writes on Monday, January 18: >In early js user was able to define local verb in explicit definition >and use it in it without restrictions. Situation now changed: (this is not >real script, but pure problem) > >test=: 3 : 0 >f1=.+: >f2=.3 : 'f1 f1 y.' >f2 y. >) > > test 3 >|value error: f1 >| f1 f1 y. > >So, we can't use defined local verb f1 in local verb f2. I have discovered >this when my old scripts refused to work. > >Is this behaviour change sporadic or it follows some clever reasons? This is probably a result of stricter enforcement of the rules. In the above example, the explicit definition f2 began a new scope, wherein names are either strictly local or global. In the circumstance, the name f1 is undefined since it is neither local (not defined in f2) nor global (not defined outside of test or f2). -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 18 16:15:41 1999 Date: Mon, 18 Jan 1999 14:46:31 -0500 From: Cliff Reiter Subject: Jforum: Math Meetings Organization: Lafayette College Content-type: text/plain; charset=us-ascii I thought I'ld let this forum know that Iverson Software had a booth in the exhibit area at the National math meetings in San Antonio Texas last week. The display was very inviting and professional. Anne Faust held down the fort most of the time with Eric spending just a bit of time there. I understand that many of the ISI & Strand folks had conflicting commitments but I think the presence of ISI at the meetings was very important. I hope some great contacts were made. Good work & thanks. My students spoke at the meetings and described some of their J work. The talk was well received. Best, Cliff -- Clifford A. Reiter Mathematics Department, Lafayette College Easton, PA 18042 USA, 610-330-5277 ^^^ Note new phone exchange http://www.lafayette.edu/~reiterc -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 18 16:52:54 1999 From: "Randy MacDonald" Subject: Re: Jforum: http server Date: Mon, 18 Jan 1999 16:40:49 -0500 charset="iso-8859-1" It's probably no more than 40 lines of J given the version I see in the APL+Win package. Is that something you'd pay for? -----Original Message----- From: Simon Garland Date: January 15, 1999 11:13 AM Subject: Jforum: http server >does anyone have a slightly hacked version of the J socket server code that >acts as an HTTP server (handles header records, GET/POST etc..)? I'd prefer >not to write it myself unless I have too.. > >/Simon > > > > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 18 16:57:53 1999 Date: Mon, 18 Jan 1999 22:44:59 +0100 (MET) From: Martin Neitzel Subject: Re: Jforum: length/angle > *.271j1 > |domain error > > Please, email me if this result is (or isn't) reproducible on other systems, > especially on non wintel platforms. Fails the same on the sparcen and rs6000, and yields on Linux/386: *.271j1 271.002 0.00369002 Looks like a reasonable result to me. I'll check out NetBSD & FreeBSD on the 368 later. Martin -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 18 18:00:33 1999 Date: Mon, 18 Jan 1999 16:48:35 -0600 (CST) From: John Howland Subject: Re: Jforum: length/angle In-Reply-To: <199901182144.WAA04827@ohura.gaertner.de> On Mon, 18 Jan 1999, Martin Neitzel wrote: > > *.271j1 > > |domain error > > > > Please, email me if this result is (or isn't) reproducible on other systems, > > especially on non wintel platforms. > > Fails the same on the sparcen and rs6000, and yields on Linux/386: > > *.271j1 > 271.002 0.00369002 My J 3.02 fails on HP-UX and LinuxPPC, but works on Linux/386 > > Looks like a reasonable result to me. I'll check out NetBSD & FreeBSD > on the 368 later. > > Martin > > -------------------------------------------------------------------------------- > J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > ________________________________________________________________ John E. Howland url: http://www.cs.trinity.edu/~jhowland/ Computer Science email: jhowland@ariel.cs.trinity.edu Trinity University voice: (210) 736-7480 715 Stadium Drive fax: (210) 736-7477 San Antonio, Texas 78212-7200 -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 19 02:34:26 1999 From: Andromeda Subject: Jforum: 271j1 Date: Tue, 19 Jan 1999 08:16:55 +0100 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE4384.1457E040" ------ =_NextPart_000_01BE4384.1457E040 The thing with the transform into polar coordinates *. 271j1 produces for me a ?domain error" as well. 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All rights reserved. *. 271j1 |domain error | *.271j1 jkt@pocus$ jkt@pocus$ j2 ld.so: warning: /usr/lib/libc.so.1.8 has older revision than expected 9 J 2.04 Copyright (c) 1990-1995, Iverson Software Inc. All Rights Reserved. *. 271j1 271.002 0.00369002j_2.22045e_16 jkt@pocus$ jkt@pocus$ Interesting... -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 19 03:10:16 1999 From: "=?iso-8859-1?Q?Leo_V=F5handu?=" Subject: Re: Jforum: length/angle Date: Tue, 19 Jan 1999 09:55:25 +0200 charset="iso-8859-1" On Win98 j402 p300 I got 0.999993j 0.00369001 and _0.999993j 0.00369001 -----Original Message----- From: Andrew Nikitin Date: 18. jaanuar 1999. a. 16:37 Subject: Jforum: length/angle >I have some troubles with using monadic *. (length/angle) primitive. >I have experienced this with j402/windows 95 running p100. > > *.271j1 >|domain error >| *.271j1 > *._271j1 >271.002 3.1379 > >For the most of other (but not all) complex numbers *. seems to work fine. > >Can anybody explain such strange behaviour of *.? What magical properties does >271j1 have? > >Please, email me if this result is (or isn't) reproducible on other systems, >especially on non wintel platforms. > > >nsg > > > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 19 03:49:51 1999 >Received: from pc2-rru.oce.nl by smtp02.oce.nl (4.1/SMI-4.1) id AA28945; Tue, 19 Jan 99 09:31:23 +0100 Date: Tue, 19 Jan 1999 09:30:26 +0100 From: Jeroen Teitsma Subject: Re: Jforum: length/angle In-Reply-To: It also seems to be localised problem. *.271.01j1 and 271j0.99 produce the same error (J3.03 and J4.01 for windows on a P166MMX), but *.271.02j1 and *.270.99j1 and *.271j0.98 and *.271j1.01 don't! Jeroen At 14:36 18/01/99 , you wrote: >I have some troubles with using monadic *. (length/angle) primitive. >I have experienced this with j402/windows 95 running p100. > > *.271j1 >|domain error >| *.271j1 > *._271j1 >271.002 3.1379 > >For the most of other (but not all) complex numbers *. seems to work fine. > >Can anybody explain such strange behaviour of *.? What magical properties does >271j1 have? > >Please, email me if this result is (or isn't) reproducible on other systems, >especially on non wintel platforms. > > >nsg > > > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 19 03:56:22 1999 From: "Simon Garland" Subject: Jforum: http server Date: Tue, 19 Jan 1999 09:02:11 +0100 charset="iso-8859-1" pay for? no .. guess I'll have to get round to it myself /Simon -----Original Message----- From: owner-jsoftware@lists.interlog.com [mailto:owner-jsoftware@lists.interlog.com]On Behalf Of Randy MacDonald Sent: 18 January 1999 22:41 Subject: Re: Jforum: http server It's probably no more than 40 lines of J given the version I see in the APL+Win package. Is that something you'd pay for? -----Original Message----- From: Simon Garland Date: January 15, 1999 11:13 AM Subject: Jforum: http server >does anyone have a slightly hacked version of the J socket server code that >acts as an HTTP server (handles header records, GET/POST etc..)? I'd prefer >not to write it myself unless I have too.. > >/Simon > > > > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > ---------------------------------------------------------------------------- ---- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From voxel.kharkov.ua!nsg@voxel.kharkov.ua Tue Jan 19 05:43:36 1999 References: <199901181515.KAA06764@goedel.math.uwaterloo.ca> Organization: Voxel From: "Andrew Nikitin" Date: Mon, 18 Jan 1999 18:24:52 +0200 (EET) Subject: Re: Jforum: length/angle 18-Jan-99 10:15 Lee Dickey wrote: > I tried your number on a unix system using J 3.05. Your error appeared there. > Using J7 (1993) on a Mac, no error with this number. > Thank you for information. I suspect error in pentium builtin coprocessor is reason of the effect. Is it true, that your j305/unix runs on intel-pentium machine? nsg From owner-jsoftware@lists.interlog.com Tue Jan 19 11:28:11 1999 References: <001801be4318$e002ab60$33cb22cf@f3nbp> Organization: Voxel From: "Andrew Nikitin" Date: Tue, 19 Jan 1999 13:32:06 +0200 (EET) Subject: Re: Jforum: Re: local variables 18-Jan-99 10:51 Roger Hui wrote: > > This is probably a result of stricter enforcement of the rules. In the above example, > the explicit definition f2 began a new scope, wherein names are either strictly local or global. > In the circumstance, the name f1 is undefined since it is neither local (not defined in f2) > nor global (not defined outside of test or f2). > So, if definition of f2 wouldn't be explicit (and would be tacit, for example) then it wouldn't begin new scope and we may use f1 in it. I understand this, but such rules allow following strange-looking twins: =============== twin scripts =================== test2=: 3 : 0 f1=. +: f2=. 3 : 'f1 f1 y.' f2 y. ) test3=: 3 : 0 f1=. +: f2=. 13 : 'f1 f1 y.' f2 y. ) ============= Session log ============== test2 4 |value error: f1 | f1 f1 y. test3 4 16 =============== end =================== nsg -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 19 11:34:21 1999 From: "Roger Hui" Subject: Jforum: Re: local variables Date: Tue, 19 Jan 1999 11:21:43 -0500 charset="iso-8859-1" Andrew Nikitin writes on Tuesday, January 19: >So, if definition of f2 wouldn't be explicit (and would be tacit, for example) >then it wouldn't begin new scope and we may use f1 in it. I understand this, >but such rules allow following strange-looking twins: Yup. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 19 15:34:49 1999 Date: Tue, 19 Jan 1999 22:09:03 +0200 (EET) From: Oleg Kobchenko Subject: Re: Jforum: Re: local variables In-Reply-To: There is nothing strange here. `Scope' is applicable to the script itself. The tacit definition creates no script and is just substituted (parenthesized) into the expression. It's like C preprocessor on per-term level. Hence, analogously, no scope for locals. And of course f2 in 3 is just f1@f1, which gets directly substituted, and f2 y. becomes (f1@f1)y. On Tue, 19 Jan 1999, Andrew Nikitin wrote: > So, if definition of f2 wouldn't be explicit (and would be tacit, for example) > then it wouldn't begin new scope and we may use f1 in it. I understand this, > but such rules allow following strange-looking twins: > > =============== twin scripts =================== > test2=: 3 : 0 > f1=. +: > f2=. 3 : 'f1 f1 y.' > f2 y. > ) > > test3=: 3 : 0 > f1=. +: > f2=. 13 : 'f1 f1 y.' > f2 y. > ) -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 20 09:58:14 1999 From: "Nichols, Peter" Subject: Jforum: XL Macros Date: Wed, 20 Jan 1999 08:30:45 -0600 charset="iso-8859-1" I'm running into a problem with the XL macros. I can read worksheets fine as long as the worksheet names don't contain spaces. Unfortunately almost all of the worksheets I need to work with have spaces in their names. Is there an easy fix for this, or do I need to rewrite xlutil? -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 20 10:34:41 1999 References: Organization: Voxel From: "Andrew Nikitin" Date: Wed, 20 Jan 1999 15:57:01 +0200 (EET) Subject: Re: Jforum: Re: local variables 19-Jan-99 22:09 Oleg Kobchenko wrote: > The tacit definition creates no > script and is just substituted (parenthesized) into > the expression. > > It's like C preprocessor on per-term level. I don't think so. Substitution is performed at compile time, while resolution of tacit verbs and verb names in tacit definitions occures at runtime (with all consequences follow). So, analogue with macrosubstitution isn't good. > And of course f2 in 3 is just f1@f1, which gets > directly substituted, and f2 y. becomes (f1@f1)y. Oops, f2 y. "becomes" ([: f1 [: f1 ])y. of course. With some respect to you we may wish it to be equivalent to (f1@:f1)y. of course but not to (f1@f1)y. of course. Leaving purity debates aside: Funny thing of the case is that (13 :) adverb may fail converting its arg to tacit form and leave it explicit for reasons not related to f1. nsg -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 20 10:39:49 1999 Date: Wed, 20 Jan 1999 15:18:50 +0100 From: David Alis Subject: Jforum: OLE question An OLE question... the vb object browser shows the different methods for the jexeserver ... in particular there are 3 varations of set and get; for example get, getb and getm;; what's the difference. The online stuff doesnt seem to explain. Neither does the vb sample vb scripts. dal -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 20 12:48:32 1999 Date: Wed, 20 Jan 1999 19:09:54 +0200 From: Anssi Seppala Subject: Re: Jforum: OLE question In-Reply-To: <36A5E5CA.95262606@balcab.ch> Eric gave me answer to that question a month ago. I repeat it here: The VB object browser for a J server should show the Set/SetB syntax. The syntax of Get/GetB and Set/SetB are the same. Both take a name (used as a name in the J server), and a variant in the client. Get/GetB gets the value from the J name and sets it as the variant value. Set/SetB sets the value of the variant into the J name. The B suffix is a flag that indicates how character string data is treated. Without the B suffix, J strings map to client byte vectors. With the B suffix, J strings map to client BSTRs. BSTR data is convenient in VB, but byte vectors are more convenient in C++ and Java. You can use both in VB, but you will want simple utilities to convert between a byte vector and a BSTR. At 15:18 20.1.1999 +0100, you wrote: > >An OLE question... >the vb object browser shows the different methods for the jexeserver ... > >in particular there are 3 varations of set and get; for example get, >getb and getm;; what's the difference. The online stuff doesnt seem to >explain. Neither does the vb sample vb scripts. >dal > > >---------------------------------------------------------------------------- >---- >J Forum: for information about this list, see >http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 21 17:31:54 1999 From: "Nichols, Peter" Subject: Jforum: Astromomer Day Number Functions Date: Thu, 21 Jan 1999 16:01:33 -0600 There used to be two utilities written in APL for converting between dates (ccyy mm dd) and astronomer day numbers. Does anyone have a J version of them, or do you know where I could find the original source so I can convert them? Thanks in advance. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 21 18:05:44 1999 From: "David Steinbrook" Subject: Re: Jforum: Astromomer Day Number Functions Date: Thu, 21 Jan 1999 14:25:43 -0800 charset="iso-8859-1" require 'dates' todate todayno 19990121 19990121 -----Original Message----- From: Nichols, Peter Date: Thursday, January 21, 1999 14:11 Subject: Jforum: Astromomer Day Number Functions >There used to be two utilities written in APL for converting between dates >(ccyy mm dd) and astronomer day numbers. Does anyone have a J version of >them, or do you know where I could find the original source so I can convert >them? Thanks in advance. > >----------------------------------------------------------------------------- --- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 21 21:26:18 1999 From: "John D. Baker" Subject: Re: Jforum: Astromomer Day Number Functions Date: Thu, 21 Jan 1999 21:13:07 -0500 charset="iso-8859-1" Funny that you should ask: >There used to be two utilities written in APL for converting between dates >(ccyy mm dd) and astronomer day numbers. Does anyone have a J version of >them, or do you know where I could find the original source so I can convert >them? Thanks in advance. The following J verbs do more or less what you want. You may have to fiddle with the input date formats (will we ever stop fiddling with date formats) NB. Julian day numbers from Calendar dates julfrcal =: 3 : 0 NB. Julian dates from calendar dates (*)=. y m d NB. takes 3*n integer tables of dates. NB. vector J NB. scalar BASIC 'y m d' =. y. NB. INPUT "Y,M,D ";Y,M,D g =. 1582 <: y NB. G=1: IF Y<1582 THEN G=0 f =. (d - d1) - 0.5 [ d1 =. <. d NB. D1=INT(D): F=D-D1-0.5 j =. - <. 7 * 4 %~ <.y + 12 %~ m+9 NB. J=-INT(7*(INT((M+9)/12)+Y)/4) NB. IF G=0 THEN 805 s =. * m-9 [ a =. | m-9 NB. S=SGN(M-9): A=ABS(M-9) j3 =. <. y + s * <. a%7 NB. J3=INT(Y+S*INT(A/7)) j3 =. - <. 3r4 * >: <. j3 % 100 NB. J3=-INT((INT(J3/100)+1)*3/4) j =. j + (<.275 * m%9) + d1 + g*j3 NB. 805 J=J+INT(275*M/9)+D1+G*J3 j =. j + 1721027 + (2*g) + 367*y NB. J=J+1721027+2*G+367*Y b =. f >: 0 NB. IF F>=0 THEN 825 f =. f + b [ j =. j - b NB. F=F+1: J=J-1 f + j ) NB. Calendar dates from Julian day numbers: inverse of calfrjul, example call: NB. NB. calfrjul julfrcal |: 10 # ,: 1999 1 1 calfrjul =: 3 : 0 NB. converts Julian day numbers to dates, inverse NB. y. = Julian day numbers NB. x. = optional: NB. 0 - result in form (default) NB. 1 - result in form 0 calfrjul y. : NB. Gregorian Calendar correction b =. 2299161 <: y. jalpha =. <. 36524.25 %~ _0.25 + y. - 1867216 ja =. (y. * -. b) + b * y. + 1 + jalpha - <. 0.25 * jalpha jb =. ja + 1524 jc =. <. 6680.0 + ((jb - 2439870) - 122.1) % 365.25 jd =. <. (365 * jc) + 0.25 * jc je =. <. (jb - jd) % 30.6001 id =. 0.5 + (jb - jd) - <. 30.6001 * je mm =. je - 1 mm =. mm - 12 * mm > 12 iyyy =. jc - 4715 iyyy =. iyyy - mm > 2 iyyy =. iyyy - iyyy <: 0 NB. convert result format if. x. do. 100 #. |: iyyy , mm ,: id else. |: iyyy , mm ,: id end. ) -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 22 02:30:40 1999 >Received: from pc1-jwj.oce.nl by smtp02.oce.nl (4.1/SMI-4.1) id AA24369; Fri, 22 Jan 99 08:12:54 +0100 Date: Fri, 22 Jan 99 08:12:54 +0100 From: jwj@oce.nl (Jan Jacobs) Subject: Jforum: stop-continue ls, is there a way to emulate Basic's ctrl-C and continue commands? One way I can stop a Jscript is by hitting the window close "cross" of the whole session. Another way is to open an arbitrary window -using the files for Windows based object graphics from J by Cliff Reiter: sogwin'...'- and by closing this window the execution stops. Both ways are no solutions for this problem. Does anyone know a solution for this? I use a WIN95 3.03 version; have things changed until now? Jan Jacobs. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 22 07:15:56 1999 Date: Fri, 22 Jan 1999 12:59:43 +0100 (MET) From: Martin Neitzel Subject: Re: Jforum: stop-continue From: jwj@oce.nl (Jan Jacobs) > > is there a way to emulate Basic's ctrl-C and continue commands? Sure. Watch this: J 4.02 Copyright (c) 1990-1998, Iverson Software Inc. All rights reserved. loopdemo =: monad define for_i. i. y. do. 1!:2&2 i NB. write to screen 6!:3 ] 5 NB. 5 seconds delay end. y. ) loopdemo 4 0 1 2 3 4 loopdemo 4 0 1 ^C|break: loopdemo | 6!:3]5 9!:12 '' 5 NB. Unix On a PC running DOS or Windows (any version), J uses Ctrl-Break as the break character. The break is an event which will trigger the debugger or any try./catch. if enabled. Note that a break can only take effect after a J primitive (or, at the discretion of the implementation, even a phrase of a few primitives) has been completed. In the example about, you have to wait until the currently running 5-second delay is completed. Likewise for long running matrix computations, blocking reads from a socket etc. Martin -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 22 10:11:21 1999 From: "Nichols, Peter" Subject: Jforum: Long File Names Date: Fri, 22 Jan 1999 08:47:58 -0600 charset="iso-8859-1" Is there a utility to convert long file names to their dos equivalents? If I have '1999-05-02 data.xls', can I convert that to '1999-05-0~1.xls' ? The reason I ask is that I have to be able to use the xl utilities to read and write excel workbooks that have extended names with spaces in them. Thanks. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 22 11:03:32 1999 Date: Fri, 22 Jan 1999 16:47:05 +0100 (MET) From: Martin Neitzel Subject: Re: Jforum: Long File Names > Is there a utility to convert long file names to their dos equivalents? Are you sure you need this? The FAT/VFAT/FAT32 file sytem drivers will automatically do truncations/conversations/mappings when you use a long name in some way depending on the file system in use. I.e., just the long names for both writing and reading. If I remember correctly, the exact algorithm for filename shortening is documented in the big Windows Resource Kit help file coming on every Windows CD. (Not covered by the installation procedures. Copy it manually from \admin\help\rk or something along these lines.) Martin -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 22 11:12:14 1999 Date: Fri, 22 Jan 1999 10:55:21 -0500 From: David Ness Subject: Re: Jforum: Long File Names References: <01074BD4EEC4D1118E3200805F6542A7177D9A@SPRDALLAS2> Conversion of LFNs into Dos equivalents is a more complex issue than may meet the eye at first. To summarize, which `~n' gets attached to the Dos Filename depends on the `state' of the directory in which the file is created at the moment that the file is first made. Thus a particular `ABCD_EFGH_IJK' might get named `ABCD_E~1' in one directory and `ABCD_E~2' in some other directory, or might get one name at one time and the other name at some other time even in the same directory... IMO the `right' answer is, I say somewhat sadly---and with no respect whatever for the bozos who decided to do things this way when designing Windows---is to avoid use of names that require conversion. Nichols, Peter wrote: > > Is there a utility to convert long file names to their dos equivalents? > If I have '1999-05-02 data.xls', can I convert that to '1999-05-0~1.xls' ? > The reason I ask is that I have to be able to use the xl utilities to read > and write excel workbooks that have extended names with spaces in > them. Thanks. > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 22 11:30:21 1999 From: "J Tibollo" Subject: Re: Jforum: Long File Names Date: Fri, 22 Jan 1999 11:19:42 -0500 charset="iso-8859-1" I am still surprised that J still does not completely support long file names. For example, if you run an application and supply a start up script to the J runtime, the name can be longer than 8.3 but must not contain spaces. Obviously, this has something to do with the way the J interpreter parses the command line. Let's finish the job, and allow the use of long filenames (with spaces) everywhere. J. Tibollo -----Original Message----- From: David Ness Date: Friday, January 22, 1999 10:57 AM Subject: Re: Jforum: Long File Names >Conversion of LFNs into Dos equivalents is a more complex issue than >may meet the eye at first. To summarize, which `~n' gets attached >to the Dos Filename depends on the `state' of the directory in which >the file is created at the moment that the file is first made. Thus >a particular `ABCD_EFGH_IJK' might get named `ABCD_E~1' in one >directory and `ABCD_E~2' in some other directory, or might get one >name at one time and the other name at some other time even in the >same directory... > >IMO the `right' answer is, I say somewhat sadly---and with no respect >whatever for the bozos who decided to do things this way when designing >Windows---is to avoid use of names that require conversion. > >Nichols, Peter wrote: >> >> Is there a utility to convert long file names to their dos equivalents? >> If I have '1999-05-02 data.xls', can I convert that to '1999-05-0~1.xls' ? >> The reason I ask is that I have to be able to use the xl utilities to read >> and write excel workbooks that have extended names with spaces in >> them. Thanks. >> > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 22 11:33:03 1999 From: "Nichols, Peter" Subject: RE: Jforum: Long File Names Date: Fri, 22 Jan 1999 10:07:00 -0600 charset="iso-8859-1" The problem comes in when I'm using the XL Ole utilities. I can't do xlcmd 'wb open s:\1999-01-02 proj data.xls' because it counts everything after each space as a separate argument. -----Original Message----- From: Martin Neitzel [SMTP:neitzel@gaertner.de] Sent: Friday, January 22, 1999 9:47 AM To: forum@jsoftware.com Subject: Re: Jforum: Long File Names > Is there a utility to convert long file names to their dos equivalents? Are you sure you need this? The FAT/VFAT/FAT32 file sytem drivers will automatically do truncations/conversations/mappings when you use a long name in some way depending on the file system in use. I.e., just the long names for both writing and reading. If I remember correctly, the exact algorithm for filename shortening is documented in the big Windows Resource Kit help file coming on every Windows CD. (Not covered by the installation procedures. Copy it manually from \admin\help\rk or something along these lines.) Martin ---------------------------------------------------------------------------- ---- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 22 11:57:28 1999 Date: Fri, 22 Jan 1999 11:41:05 -0500 From: Eric Iverson Organization: Iverson Software Inc. Subject: Re: Jforum: Long File Names References: <01074BD4EEC4D1118E3200805F6542A7177D9A@SPRDALLAS2> Nichols, Peter wrote: > > Is there a utility to convert long file names to their dos equivalents? > If I have '1999-05-02 data.xls', can I convert that to '1999-05-0~1.xls' ? > The reason I ask is that I have to be able to use the xl utilities to read > and write excel workbooks that have extended names with spaces in > them. Thanks. There is a Win32 API call to convert a longname path to a short name path. require 'dll' getshortpath=. 'kernel32 GetShortPathNameA i *c *c i'&(15!:0) >2{getshortpath 'c:\program files\winzip\license.txt';(256#' ');256 c:\PROGRA~1\winzip\license.txt -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 22 12:37:24 1999 From: "Nichols, Peter" Subject: RE: Jforum: Long File Names Date: Fri, 22 Jan 1999 11:14:54 -0600 Thanks Everyone! -----Original Message----- From: Eric Iverson [SMTP:eiverson@interlog.com] Sent: Friday, January 22, 1999 10:41 AM To: forum@jsoftware.com Subject: Re: Jforum: Long File Names Nichols, Peter wrote: > > Is there a utility to convert long file names to their dos equivalents? > If I have '1999-05-02 data.xls', can I convert that to '1999-05-0~1.xls' ? > The reason I ask is that I have to be able to use the xl utilities to read > and write excel workbooks that have extended names with spaces in > them. Thanks. There is a Win32 API call to convert a longname path to a short name path. require 'dll' getshortpath=. 'kernel32 GetShortPathNameA i *c *c i'&(15!:0) >2{getshortpath 'c:\program files\winzip\license.txt';(256#' ');256 c:\PROGRA~1\winzip\license.txt ---------------------------------------------------------------------------- ---- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 23 09:48:12 1999 References: <36A8AA21.3266@interlog.com> Organization: Voxel From: "Andrew Nikitin" Date: Sat, 23 Jan 1999 16:21:35 +0200 (EET) Subject: Jforum: more on length/angle It is known that some ports of j (in particular w95 port) yield domain error on evaluation of *.271j1 I have found more numbers yielding the same: 271j1 391j1 513j1 514j1 518j1 521j1 523j1 524j1 526j1 528j1 533j1 534j1 536j1 542j2 543j1 545j1 554j1 559j1 560j1 567j1 575j1 576j1 587j1 598j1 600j1 601j1 606j1 615j1 616j1 617j1 etc... Let's call these numbers "bad numbers". Then bad number multiplied by power of 2 is bad number. Bad number divided by power of 2 is bad number. In addition to powers of 2 there are another multipliers giving bad number. For example 271j1 * 489 971 978 are all bad numbers. Also 391j1 * 11 21 22 42 43 44 Jeroen Teitsma noticed that not only complex integers produce the effect. In almost every unit square some bad numbers exist: 3122.01j2.02 3.3j0.01 1111.01j1.02 and so on. I think this is bug in math library used by j. (BTW, who knows what library is used?) Is there j primitive, that calculates argument of complex number? nsg -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 23 12:53:32 1999 From: "Roger Hui" Subject: Jforum: Re: more on length/angle Date: Sat, 23 Jan 1999 12:43:37 -0500 charset="iso-8859-1" Re: *.y domain errors reported by Andrew Nitkitin: *. y is defined to be the length and the arc for y. In all cases, the erroneous domain error is due to an attempt to convert to real an arc with a very small imaginery part. You can see this (and also get around the problem for the nonce) by applying f=: 10 12&o."0. Thus: f 271j1 271.002 0.00369002j_2.22045e_16 f 391j1 513j1 391.001 0.00255754j_2.22045e_16 513.001 0.00194932j1.11022e_16 -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 23 14:46:13 1999 Date: Sat, 23 Jan 1999 21:27:51 +0200 (EET) From: Oleg Kobchenko Subject: Re: Jforum: Re: more on length/angle In-Reply-To: <001001be46f7$eb6231a0$e00714d1@f3nbp> On Sat, 23 Jan 1999, Roger Hui wrote: > Re: *.y domain errors reported by Andrew Nitkitin: > > *. y is defined to be the length and the arc for y. In all cases, the erroneous domain error is due > to an attempt to convert to real an arc with a very small imaginery part. You can see this > (and also get around the problem for the nonce) by applying f=: 10 12&o."0. Thus: > > f 271j1 > 271.002 0.00369002j_2.22045e_16 > f 391j1 513j1 > 391.001 0.00255754j_2.22045e_16 > 513.001 0.00194932j1.11022e_16 How can an angle have an imaginary part? (In mathematical sense) -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Sat Jan 23 19:14:12 1999 From: "Roger Hui" Subject: Jforum: Re: more on length/angle Date: Sat, 23 Jan 1999 18:58:28 -0500 charset="iso-8859-1" Roger Hui : > Re: *.y domain errors reported by Andrew Nitkitin: > > *. y is defined to be the length and the arc for y. In all cases, the erroneous domain error is due > to an attempt to convert to real an arc with a very small imaginery part. You can see this > (and also get around the problem for the nonce) by applying f=: 10 12&o."0. Thus: > > f 271j1 > 271.002 0.00369002j_2.22045e_16 > f 391j1 513j1 > 391.001 0.00255754j_2.22045e_16 > 513.001 0.00194932j1.11022e_16 Oleg Kobchenko: >How can an angle have an imaginary part? >(In mathematical sense) Exactly; and that is how I made the error. The arc of y is computed by 0j_1 * ^. * y, a formula derived from Euler's identity. But: * 271j1 0.999993j0.00369001 ^. * 271j1 2.22045e_16j0.00369002 0j_1 * ^. * 271j1 0.00369002j_2.22045e_16 I had assumed that the last quantity would be within fuzz of real, and invoked the code that coerces complex numbers into reals. It is in the coercion that the domain error is signalled. The solution probably is to replace the above formula by one based on _3 o. %~/ +. * y, the arctan of the ratio between the imaginary and real parts of the signum of y. Thus: +. * 271j1 0.999993 0.00369001 %~/ +. * 271j1 0.00369004 _3 o. %~/ +. * 271j1 0.00369002 -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 25 08:46:59 1999 Date: Mon, 25 Jan 1999 15:23:16 +0200 (EET) From: Oleg Kobchenko Subject: Re: Jforum: Re: more on length/angle In-Reply-To: <002b01be472c$48a41ac0$e00714d1@f3nbp> 10 ways of obtaining Complex Arg w(/o) error Z=: 271j1 271j_1 (10 12&o."0) Z NB. (1) using J circle funcs 271.002 0.00369002j_2.22045e_16 NB. strange Im part 271.002 _0.00369002j_2.22045e_16 *. 1e_7&+ Z NB. (2) adding a small number 271.002 0.00369002 271.002 _0.00369002 *. 1e_8&+ Z NB. but a essentially noticible |domain error | *.1e_8&+Z ([ , -&1r2p1@])/@*.@j. Z NB. (3) turn back ] *. ] turn 90deg 271.002 0.00369002 271.002 _0.00369002 (%@[ , -@])/@*.@% 271j1 Z NB. (4) (1/Mag 1/z) , (-Arg 1/z) 271.002 0.00369002 271.002 _0.00369002 (| , _3&o.@%/@|.@+.)"0 Z NB. (5) Arg=atan y/x 271.002 0.00369002 271.002 _0.00369002 (| , {:@*.@*)"0 Z NB. (6) Arg z = Arg +z 271.002 0.00369002 271.002 _0.00369002 (| , {:@+.@^.)"0 Z NB. (7) arg z = Im ln z 271.002 0.00369002 271.002 _0.00369002 (^@{. , {:)@+.@^. Z NB. (8) ln|z| + i arg z = ln z 271.002 0.00369002 271.002 _0.00369002 (% |) 271j1 NB. z/|z| == *z 0.999993j0.00369001 ^.(% |) 271j1 NB. (9) i ln *z = arg z 2.22045e_16j0.00369002 NB. here Re should be 0 ! 0j_1 * ^.(% |) 271j1 NB. this should've been real 0.00369002j_2.22045e_16 *271j1 NB. *z == z/|z| 0.999993j0.00369001 *.*271j1 1 0.00369002 NB. here angle is correct ^.*271j1 NB. (10) 2.22045e_16j0.00369002 NB. here Re should be 0 ! ^.1 NB. | z/|z| | == 1 0 |*271j1 1 12 o. 271j1 NB. the same strange Im part 0.00369002j_2.22045e_16 -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 25 09:29:05 1999 Date: Mon, 25 Jan 1999 16:13:43 +0200 (EET) From: Oleg Kobchenko Subject: Re: Jforum: Re: more on length/angle In-Reply-To: <002b01be472c$48a41ac0$e00714d1@f3nbp> On Sat, 23 Jan 1999, Roger Hui wrote: > Exactly; and that is how I made the error. The arc of y is computed by 0j_1 * ^. * y, a formula derived > from Euler's identity. But: > > * 271j1 > 0.999993j0.00369001 > ^. * 271j1 > 2.22045e_16j0.00369002 > 0j_1 * ^. * 271j1 > 0.00369002j_2.22045e_16 > > I had assumed that the last quantity would be within fuzz of real, and invoked the code that coerces > complex numbers into reals. It is in the coercion that the domain error is signalled. > > The solution probably is to replace the above formula by one based on _3 o. %~/ +. * y, > the arctan of the ratio between the imaginary and real parts of the signum of y. Thus: > > +. * 271j1 > 0.999993 0.00369001 > %~/ +. * 271j1 > 0.00369004 > _3 o. %~/ +. * 271j1 > 0.00369002 It is obvious that ^. erroneously returns non-zero Re part. On unit circle, where *z is, Re@^. is ^.@| and should be equal to zero, in exact notation. Is it because of the truncation of computer numbers that the Re part appears? But, |*271j1 1 So this case when |* is 1 should probably be specifically checked in complex ^. If |* had been other than 1 then behaviour of ^. could have been justified, but it's not. Apart from that, there's nothing wrong with obtaining Arg with ^. -- olegyk -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 25 12:55:40 1999 From: "J Tibollo" Subject: Jforum: Saving Contents of a Locale Date: Mon, 25 Jan 1999 12:46:16 -0500 boundary="----=_NextPart_000_0004_01BE4860.B2A57240" This is a multi-part message in MIME format. ------=_NextPart_000_0004_01BE4860.B2A57240 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Does anyone know whether J has a feature which would allow all names in = a given J locale to be saved / restored to/from disk. This would be = something like the []OR feature that is provided by Dialog APL? Regards, Joe Tibollo ------=_NextPart_000_0004_01BE4860.B2A57240 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Does anyone know whether J has a = feature which=20 would allow all names in a given J locale to be saved / restored  = to/from=20 disk.  This would be something like the []OR feature that is = provided by=20 Dialog APL?
 
Regards,
Joe = Tibollo
------=_NextPart_000_0004_01BE4860.B2A57240-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 25 16:25:36 1999 From: "John D. Baker" Subject: Re: Jforum: Saving Contents of a Locale Date: Mon, 25 Jan 1999 16:11:27 -0500 boundary="----=_NextPart_000_0011_01BE487D.5C729E80" This is a multi-part message in MIME format. ------=_NextPart_000_0011_01BE487D.5C729E80 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Joe, There is no direct facility to do this but it is a simple matter build a boxed list containing the binary representations of all the objects in the locale. This locale list can then be written directly=20 to file.=20 John Baker=20 -----Original Message----- From: J Tibollo To: forum@jsoftware.com Date: Monday, January 25, 1999 12:46 PM Subject: Jforum: Saving Contents of a Locale =20 =20 Does anyone know whether J has a feature which would allow all names = in a given J locale to be saved / restored to/from disk. This would be = something like the []OR feature that is provided by Dialog APL? =20 Regards, Joe Tibollo ------=_NextPart_000_0011_01BE487D.5C729E80 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Joe,
 
There is no direct = facility to do=20 this but
it=20 is a simple matter build a boxed list containing
the binary representations of all the = objects=20 in
the locale.  This locale list = can then be written directly
to file. 
 
John Baker 
-----Original = Message-----
From:=20 J Tibollo <jtibollo@backassociates.com>
To:=20 forum@jsoftware.com = <forum@jsoftware.com>
Dat= e:=20 Monday, January 25, 1999 12:46 PM
Subject: Jforum: = Saving=20 Contents of a Locale

Does anyone know whether J has a = feature=20 which would allow all names in a given J locale to be saved / = restored =20 to/from disk.  This would be something like the []OR feature = that is=20 provided by Dialog APL?
 
Regards,
Joe=20 Tibollo
------=_NextPart_000_0011_01BE487D.5C729E80-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 25 18:17:50 1999 From: "J Tibollo" Subject: Re: Jforum: Saving Contents of a Locale Date: Mon, 25 Jan 1999 18:11:02 -0500 boundary="----=_NextPart_000_001E_01BE488E.116C03C0" This is a multi-part message in MIME format. ------=_NextPart_000_001E_01BE488E.116C03C0 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable John: Can you give me an example. I.E. If I have nouns A B and C and verbs = verb1 verb2 and verb3 - how would I build a boxed list of their binary = representations? Do I need to keep track of the their names as well? = Do the binary representations contain all that is needed in order to = re-establish them in the workspace - similar to APL's []FX? Regards, Joe -----Original Message----- From: John D. Baker To: forum@jsoftware.com Date: Monday, January 25, 1999 4:14 PM Subject: Re: Jforum: Saving Contents of a Locale =20 =20 Joe, =20 There is no direct facility to do this but it is a simple matter build a boxed list containing the binary representations of all the objects in the locale. This locale list can then be written directly=20 to file.=20 =20 John Baker=20 -----Original Message----- From: J Tibollo To: forum@jsoftware.com Date: Monday, January 25, 1999 12:46 PM Subject: Jforum: Saving Contents of a Locale =20 =20 Does anyone know whether J has a feature which would allow all = names in a given J locale to be saved / restored to/from disk. This = would be something like the []OR feature that is provided by Dialog APL? =20 Regards, Joe Tibollo ------=_NextPart_000_001E_01BE488E.116C03C0 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
John:
 
Can you give me an example. I.E. If I have nouns A B = and C and=20 verbs verb1 verb2 and verb3 - how would I build a boxed list of their = binary=20 representations?  Do I need to keep track of the their names as = well? =20 Do the binary representations contain all that is needed in order to=20 re-establish them in the workspace - similar to APL's []FX?
 
Regards,
Joe
-----Original = Message-----
From:=20 John D. Baker <bakerjd@kos.net>
To: = forum@jsoftware.com <forum@jsoftware.com>
Dat= e:=20 Monday, January 25, 1999 4:14 PM
Subject: Re: Jforum: = Saving=20 Contents of a Locale

Joe,
 
There is no direct = facility to=20 do this but
it is a simple matter build a boxed list=20 containing
the binary representations of all = the objects=20 in
the locale.  This locale list=20 can then be written directly =
to file. 
 
John Baker 
-----Original=20 Message-----
From: J Tibollo <jtibollo@backassociates.com>
To:=20 forum@jsoftware.com <forum@jsoftware.com>
Dat= e:=20 Monday, January 25, 1999 12:46 PM
Subject: Jforum: = Saving=20 Contents of a Locale

Does anyone know whether J = has a feature=20 which would allow all names in a given J locale to be saved /=20 restored  to/from disk.  This would be something like = the []OR=20 feature that is provided by Dialog APL?
 
Regards,
Joe=20 Tibollo
------=_NextPart_000_001E_01BE488E.116C03C0-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 25 19:41:47 1999 From: smillie@cs.ualberta.ca Subject: Jforum: A Very Simple Computer Date: Mon, 25 Jan 1999 17:26:56 -0700 (MST) I have implemented a simple machine-language simulator similar to one I have used in introducing machine-language programming in an introductory computer science course. See My J Page at www.cs.ualberta.ca/~smillie/Jpage.htm Keith Smillie smillie@cs.ualberta.ca -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 25 20:58:17 1999 Date: Mon, 25 Jan 1999 20:46:48 -0500 From: David Ness Organization: @Home Network Subject: Re: Jforum: A Very Simple Computer References: <19990126002706Z13238-12906+343@scapa.cs.ualberta.ca> Thank you for your pointer to your new work. I will look at it with interest. As a small sidebar, you might want to include the `http://' on the front of your page pointers. This makes it look like: http://www.cs.ualberta.ca/~smillie/Jpage.htm and has the added advantage that (at least for those of us who use Netscape---and I assume others) that we can directly click on the reference, we don't have to do any cutting and pasting. Thanks again for taking to make your (always interesting) work public to the rest of us... Best regards. smillie@cs.ualberta.ca wrote: > > I have implemented a simple machine-language > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Mon Jan 25 21:51:36 1999 Date: Sat, 23 Jan 1999 11:13:49 -0800 From: Richard Hill Organization: Adaptable Systems Subject: Jforum: Re: linux/j refernece book needed References: <002b01be4638$bdca0980$d60714d1@xps200> For a development project in j under linux/unix is there a recommended text for the linux/unix side? ie a comprenhensive reference text for unix/linux to suit an APL/J developer who comes from dos/windows. (The team is considering transferring an edi processing system from apl/dos to j/linux) -- Richard Hill Adaptable Systems, Melbourne, Australia Tel: Internat+61 3 9555 7222 Fax: Internat+61 3 9589 3220 Email: hillrj@ibm.net -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 26 10:48:03 1999 From: "John D. Baker" Subject: Jforum: Saving locale contents: correction Date: Tue, 26 Jan 1999 10:24:29 -0500 charset="iso-8859-1" Oops: There was a mistake in my previous message the correction is: For nouns you have to use the inverse of 3!:1. (nouns) =: (3!:2)&.> values John D. Baker bakerjd@kos.net -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 26 10:55:48 1999 From: "John D. Baker" Subject: Re: Jforum: Saving Contents of a Locale Date: Tue, 26 Jan 1999 10:16:56 -0500 boundary="----=_NextPart_000_002D_01BE4915.008E28D0" This is a multi-part message in MIME format. ------=_NextPart_000_002D_01BE4915.008E28D0 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Joe, To do this you need two foreign conjunctions: 3!:1 NB. convert to binary representation 5!:5 NB. linar representation I use the binary representation to convert J nouns because it preserves the full precision of numeric values. The linear representation can be used for verbs, adverbs and conjunctions. The following illustrates how to do this: define words in z locale the magic will become clear below. NB. both nc and nl are loaded by the=20 NB. standard J setup but if you're like me NB. you have a non-standard setup. nc_z_ =3D: 4!:0 NB. name class nl_z_ =3D: 3!:0 NB. name list NB. word representation (nouns binary others linear) wrep_z_ =3D: 5!:5@<`(3!:1@:".)@.(0&=3D@(nc@<)) NB. write and read nouns writenoun_z_ =3D: ([: 3!:1 [) (1!:2 ]`<@.(32&>@(3!:0))) ] readnoun_z_ =3D: 3!:2@(1!:1&(]`<@.(32&>@(3!:0)))) NB. save locale as a binary=20 NB. collect names, values and classes of locale objects NB. the locale _j_ suffix (use your locale name) NB. is required to execute in the correct place lvalues =3D. wrep_j_&.> lnames =3D. nl_j_ '' lclasses =3D. nc_j_ lnames NB. store as a single list blob=3D. ( <'_anylocale_') =3D: values For nouns you have to use the inverse of 3!:0. (nouns) =3D: (3!:1)&.> values Hope this helps John Baker -----Original Message----- From: J Tibollo To: forum@jsoftware.com Date: Monday, January 25, 1999 6:10 PM Subject: Re: Jforum: Saving Contents of a Locale =20 =20 John: =20 Can you give me an example. I.E. If I have nouns A B and C and verbs = verb1 verb2 and verb3 - how would I build a boxed list of their binary = representations? Do I need to keep track of the their names as well? = Do the binary representations contain all that is needed in order to = re-establish them in the workspace - similar to APL's []FX? =20 Regards, Joe ------=_NextPart_000_002D_01BE4915.008E28D0 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Joe,
 
To do this you need two foreign=20 conjunctions:
 
3!:1    NB. convert to = binary=20 representation
5!:5    NB. linar=20 representation
 
I use the binary representation to = convert J=20 nouns
because it preserves the full precision = of=20 numeric
values.  The linear representation = can be=20 used
for verbs, adverbs and = conjunctions.  The=20 following
illustrates how to do this: define words = in z=20 locale
the magic will become clear = below.
 
NB. both nc and nl are = loaded by the=20
NB. standard J setup but if you're like=20 me
NB. you have a non-standard = setup.
 
nc_z_ =3D: 4!:0     = NB. name=20 class
nl_z_ =3D: 3!:0     = NB. name=20 list
 
NB. word representation (nouns binary = others=20 linear)
wrep_z_ =3D:=20 5!:5@<`(3!:1@:".)@.(0&=3D@(nc@<))
 
NB. write and read nouns
writenoun_z_ =3D: ([: 3!:1 [) (1!:2=20 ]`<@.(32&>@(3!:0))) ]
readnoun_z_ =3D:=20 3!:2@(1!:1&(]`<@.(32&>@(3!:0))))
 
NB. save locale as a = binary=20
 
NB. collect names, = values and=20 classes of locale objects
NB.=20 the locale _j_ suffix (use your locale name)
NB. is required to execute in the = correct=20 place
lvalues =3D. = wrep_j_&.> lnames=20 =3D. nl_j_ ''
lclasses  =3D. nc_j_ lnames
 
NB. store as a single list
blob=3D.=20 (<lnames),(<lvalues),<lclasses
 
NB. write object to file
(wrep 'blob') writenoun=20 'c:\temp\blob.ijn'
 
NB. read object back from = file
blobcopy =3D. readnoun=20 'c:\temp\blob.ijn'
 
To complete the process you have to = reassign=20 the
values in the list to their associated=20 names.  For
verbs, adverbs and conjunctions in=20 linear
format all you to do is:
 
'names values classes' =3D: = blobcopy
 
(names) =3D: = values  NB. indirect=20 assignment
 
NB. put in arbitrary locale
(names ,&.>=20 <'_anylocale_') =3D: values
 
For nouns you have to use the inverse of = 3!:0.
 
(nouns) =3D: (3!:1)&.> = values
 
 
Hope this helps
 
John Baker
 
-----Original = Message-----
From:=20 J Tibollo <jtibollo@backassociates.com>
To:=20 forum@jsoftware.com = <forum@jsoftware.com>
Dat= e:=20 Monday, January 25, 1999 6:10 PM
Subject: Re: Jforum: = Saving=20 Contents of a Locale

John:
 
Can you give me an example. I.E. If I have nouns = A B and C=20 and verbs verb1 verb2 and verb3 - how would I build a boxed list of = their=20 binary representations?  Do I need to keep track of the their = names as=20 well?  Do the binary representations contain all that is needed = in=20 order to re-establish them in the workspace - similar to APL's=20 []FX?
 
Regards,
Joe
------=_NextPart_000_002D_01BE4915.008E28D0-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 26 11:18:02 1999 From: "J Tibollo" Subject: Re: Jforum: Saving Contents of a Locale Date: Tue, 26 Jan 1999 11:07:03 -0500 boundary="----=_NextPart_000_0015_01BE491C.00BC3980" This is a multi-part message in MIME format. ------=_NextPart_000_0015_01BE491C.00BC3980 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks very much for your note John. Your response is quite complete = and easy to follow. I hope to test this out today. Best Regards, Joe -----Original Message----- From: John D. Baker To: forum@jsoftware.com Date: Tuesday, January 26, 1999 10:20 AM Subject: Re: Jforum: Saving Contents of a Locale =20 =20 Joe, =20 To do this you need two foreign conjunctions: =20 3!:1 NB. convert to binary representation 5!:5 NB. linar representation =20 I use the binary representation to convert J nouns because it preserves the full precision of numeric values. The linear representation can be used for verbs, adverbs and conjunctions. The following illustrates how to do this: define words in z locale the magic will become clear below. =20 NB. both nc and nl are loaded by the=20 NB. standard J setup but if you're like me NB. you have a non-standard setup. =20 nc_z_ =3D: 4!:0 NB. name class nl_z_ =3D: 3!:0 NB. name list =20 NB. word representation (nouns binary others linear) wrep_z_ =3D: 5!:5@<`(3!:1@:".)@.(0&=3D@(nc@<)) =20 NB. write and read nouns writenoun_z_ =3D: ([: 3!:1 [) (1!:2 ]`<@.(32&>@(3!:0))) ] readnoun_z_ =3D: 3!:2@(1!:1&(]`<@.(32&>@(3!:0)))) =20 NB. save locale as a binary=20 =20 NB. collect names, values and classes of locale objects NB. the locale _j_ suffix (use your locale name) NB. is required to execute in the correct place lvalues =3D. wrep_j_&.> lnames =3D. nl_j_ '' lclasses =3D. nc_j_ lnames =20 NB. store as a single list blob=3D. ( <'_anylocale_') =3D: values =20 For nouns you have to use the inverse of 3!:0. =20 (nouns) =3D: (3!:1)&.> values =20 =20 Hope this helps =20 John Baker =20 ------=_NextPart_000_0015_01BE491C.00BC3980 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Thanks very much for your note = John.  Your=20 response is quite complete and easy to follow.  I hope to test this = out=20 today.
 
Best Regards,
Joe
 
-----Original = Message-----
From:=20 John D. Baker <bakerjd@kos.net>
To: = forum@jsoftware.com <forum@jsoftware.com>
Dat= e:=20 Tuesday, January 26, 1999 10:20 AM
Subject: Re: = Jforum: Saving=20 Contents of a Locale

Joe,
 
To do this you need two foreign=20 conjunctions:
 
3!:1    NB. convert = to binary=20 representation
5!:5    NB. linar=20 representation
 
I use the binary representation to = convert J=20 nouns
because it preserves the full = precision of=20 numeric
values.  The linear = representation can be=20 used
for verbs, adverbs and = conjunctions.  The=20 following
illustrates how to do this: define = words in z=20 locale
the magic will become clear=20 below.
 
NB. both nc and nl = are loaded by=20 the
NB. standard J setup but if you're = like=20 me
NB. you have a non-standard=20 setup.
 
nc_z_ =3D: = 4!:0     NB. name=20 class
nl_z_ =3D: = 3!:0     NB. name=20 list
 
NB. word representation (nouns = binary others=20 linear)
wrep_z_ =3D:=20 5!:5@<`(3!:1@:".)@.(0&=3D@(nc@<))
 
NB. write and read = nouns
writenoun_z_ =3D: ([: 3!:1 [) (1!:2=20 ]`<@.(32&>@(3!:0))) ]
readnoun_z_ =3D:=20 3!:2@(1!:1&(]`<@.(32&>@(3!:0))))
 
NB. save locale as a = binary=20
 
NB. collect names, = values and=20 classes of locale objects
NB. the locale _j_ suffix (use your locale=20 name)
NB. is required to execute in the = correct=20 place
lvalues =3D. = wrep_j_&.>=20 lnames =3D. nl_j_ ''
lclasses  =3D. nc_j_ lnames
 
NB. store as a single = list
blob=3D.=20 (<lnames),(<lvalues),<lclasses
 
NB. write object to = file
(wrep 'blob') writenoun=20 'c:\temp\blob.ijn'
 
NB. read object back from = file
blobcopy =3D. readnoun=20 'c:\temp\blob.ijn'
 
To complete the process you have to = reassign=20 the
values in the list to their = associated=20 names.  For
verbs, adverbs and conjunctions in=20 linear
format all you to do = is:
 
'names values classes' =3D:=20 blobcopy
 
(names) =3D: = values  NB.=20 indirect assignment
 
NB. put in arbitrary = locale
(names ,&.>=20 <'_anylocale_') =3D: values
 
For nouns you have to use the = inverse of=20 3!:0.
 
(nouns) =3D: (3!:1)&.>=20 values
 
 
Hope this helps
 
John Baker
 
 
------=_NextPart_000_0015_01BE491C.00BC3980-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 26 11:20:11 1999 Date: Tue, 26 Jan 1999 11:04:38 -0500 From: Eric Iverson Organization: Iverson Software Inc. Subject: Re: Jforum: Saving Contents of a Locale References: <003101be493f$13376f80$01ffde6f@papabear> To J Tibollo: Why do you want a binary representation of a locale? Why not recreate the locale from source scripts? I think the general experience is that we are better off without APL like save/load mechanisms. Although they can be easily built, as John points out, that doesn't mean they are the best solution to a problem. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 26 11:48:45 1999 From: "J Tibollo" Subject: Re: Jforum: Saving Contents of a Locale Date: Tue, 26 Jan 1999 11:35:18 -0500 charset="iso-8859-1" Eric: I am interested in a (Dyalog APL like) []OR function. Here's how I am presently using this: The NEED: Suppose you have an input screen with a dozen or more input fields. What I do is assign the values of each of these fields to variables in a special locale (namespace). Then with one statement I can copy all the contents of the locale to a single component of a file. To restore, it only takes one statement to copy the component, back to the locale. This greatly simplifies the coding and mangement required to store/restore fields. Backward Compatibility: In future if I decide to add a field, I can keep my application backward compatible simply by restoring the component to the target locale and testing for the presence of a certain variable. If it doesn't exist I can simply copy a default value from a mirror 'default' locale. Another method to use to ensure backward compatiblity when new fields are being added, is- 1) copy mirror defaults to production locale 2) copy previous values to production locale from values saved to disk (if a value doesn't exist, the default value in the locale will provide the necessary field value). Also, by mirroring the values in a 'defaults' locale I don't have to worry about the new user who hasn't had a chance to save any values as yet. Discussion: I agree that using Scripts to populate your application with nouns and verbs has a number of advantanges. However, APL has some nice facilities for dealing with Groups, packages, or entire namespaces (in the case of Dyalog) so that you don't have to spend all kinds of code everytime you want to move groups of objects to and from disk. Scripts are OK if you can decide in advance what you need. However, as things change you need some dynamic way of taking a subset of current values and saving/restoring them to/from disk. Why come up with a custom format for stuffing values into a component and then unpacking them later. Wouldn't it be nice to just have a powerful method which picks up everything put in a locale, save them, and restore them later on? Nice and tidy. I hope to write a J script to give me this type of functionality. Regards, Joe -----Original Message----- From: Eric Iverson Date: Tuesday, January 26, 1999 11:07 AM Subject: Re: Jforum: Saving Contents of a Locale >To J Tibollo: > >Why do you want a binary representation of a locale? Why not recreate >the locale from source scripts? I think the general experience is that >we are better off without APL like save/load mechanisms. Although they >can be easily built, as John points out, that doesn't mean they are the >best solution to a problem. > > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 26 11:55:50 1999 From: "J Tibollo" Subject: Jforum: More - on Saving Contents of a locale Date: Tue, 26 Jan 1999 11:39:56 -0500 boundary="----=_NextPart_000_003E_01BE4920.98C23C80" This is a multi-part message in MIME format. ------=_NextPart_000_003E_01BE4920.98C23C80 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Eric: I forgot to mention, that according to the Dyalog people, using the []OR = representation of a namespace is a very quick process, - far quicker = than writing a routine yourself to package the values into some kind of = formatted structure for reading and writing to disk. If J locales can = similarily be converted to binary representations and saved/read to/from = disk, then this would provide an efficient way of reading and writing = groups of variables. Would it be difficult to add such a feature to J? Regards, Joe ------=_NextPart_000_003E_01BE4920.98C23C80 charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Eric:
 
I forgot to mention, that according = to the=20 Dyalog people, using the []OR representation of a namespace is a very = quick=20 process, - far quicker than writing a routine yourself to package the = values=20 into some kind of formatted structure for reading and writing to = disk.  If=20 J locales can similarily be converted to binary representations and = saved/read=20 to/from disk, then this would provide an efficient way of reading and = writing=20 groups of variables.  Would it be difficult to add such a feature = to=20 J?
 
Regards,
Joe
------=_NextPart_000_003E_01BE4920.98C23C80-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 26 14:29:06 1999 From: "Chris Burke" Subject: Re: Jforum: More - on Saving Contents of a locale Date: Tue, 26 Jan 1999 14:15:40 -0500 charset="iso-8859-1" >I forgot to mention, that according to the Dyalog people, using the []OR representation of a namespace is a very quick process, - far quicker than >writing a routine yourself to package the values into some kind of formatted structure for reading and writing to disk. If J locales can similarily be >converted to binary representations and saved/read to/from disk, then this would provide an efficient way of reading and writing groups of variables. >Would it be difficult to add such a feature to J? Joe, In your original msg you asked about saving all the contents of a locale, including verbs. Now you are talking about the variables. Scripts are the right place to store verb (and adverb/conjunction) definitions. Variables can be stored very efficiently with the 3!:1 representation, as described by John Baker and used by J component files. Its easy to store all variables in a locale, for example, the following defines a variable with the representation of all nouns in the j locale: load 'pack' a=. 3!:1 pack_j_ nl_j_ 0 To unpack in locale abc: pdef_abc_ 3!:2 a Chris -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Tue Jan 26 15:59:05 1999 From: "J Tibollo" Subject: Re: Jforum: More - on Saving Contents of a locale Date: Tue, 26 Jan 1999 15:49:08 -0500 charset="iso-8859-1" X-MIMEOLE: Produced By Microsoft MimeOLE V4.72.3155.0 Chris: Thanks for your example. I am only concerned with nouns not verbs. I agree that verbs are better handled using Scripts. Sorry for not being more careful with my explanation in my last note. I haven't had a chance to work throught the examples provided by John and yourself. Thanks for the tips. It seems that saving and restoring all nouns in a given locale is going to be a pleasure in J. Regards, Joe -----Original Message----- From: Chris Burke Date: Tuesday, January 26, 1999 2:19 PM Subject: Re: Jforum: More - on Saving Contents of a locale >>I forgot to mention, that according to the Dyalog people, using the []OR >representation of a namespace is a very quick process, - far quicker than >>writing a routine yourself to package the values into some kind of >formatted structure for reading and writing to disk. If J locales can >similarily be >converted to binary representations and saved/read to/from >disk, then this would provide an efficient way of reading and writing groups >of variables. >Would it be difficult to add such a feature to J? > >Joe, > >In your original msg you asked about saving all the contents of a locale, >including verbs. Now you are talking about the variables. > >Scripts are the right place to store verb (and adverb/conjunction) >definitions. Variables can be stored very efficiently with the 3!:1 >representation, as described by John Baker and used by J component files. > >Its easy to store all variables in a locale, for example, the following >defines a variable with the representation of all nouns in the j locale: > > load 'pack' > a=. 3!:1 pack_j_ nl_j_ 0 > >To unpack in locale abc: > > pdef_abc_ 3!:2 a > >Chris > > > >--------------------------------------------------------------------------- ----- >J Forum: for information about this list, see http://www.jsoftware.com/forum.htm > -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 27 05:49:35 1999 Date: Wed, 27 Jan 1999 12:22:53 +0200 From: Anssi Seppala Subject: Jforum: OLE between APL & J In-Reply-To: <003c01be4960$60456040$1c0114d1@xps200> I am working with both Dyalog APL/W and J. I have a customer who works with VisualBasic and utilises my J and APL/W applications through OLE.

Now I tried for testing purposes to call my Dyalog OLE component from J and did not succeed. Is there anybody who could give a example how a Dyalog OLE component is called from J? It seems that J talks about some sort of hierarchy ahd Dyalog talks something that there is no hierarchy.

Here comes an example. I have a dyalog OLE server named dyalog.test. In test there is a niladic function prog and monadic function qrap.

wd'pc dyaole'    NB. Create a parent control
wd 'cc dy oleautomation:dyalog.test'  NB. attach dyalog.demo OLE to dy
wd 'olemethod ...?   NB. What should be the syntax?

Thanks for any help,
Anssi -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 27 09:11:15 1999 From: bjorn@rvk.is X-Lotus-FromDomain: RVK Date: Wed, 27 Jan 1999 13:56:52 +0000 Subject: Jforum: J402 for the iMac Content-type: text/plain; charset=us-ascii Content-Disposition: inline I am waiting for the J402 to become awailable for the iMac so that I can set up the Pousse to run at the vendors place in order for them to distribute it with their machines. Is it possible to get an indication on when I might expect such an event? /Gosi -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 27 09:34:01 1999 Date: Wed, 27 Jan 1999 15:19:55 +0100 From: David Alis Subject: Re: Jforum: Saving Contents of a Locale References: <003101be493f$13376f80$01ffde6f@papabear> <36ADE796.3858@interlog.com> Eric Iverson wrote: > To J Tibollo: > > Why do you want a binary representation of a locale? Why not recreate > the locale from source scripts? If you want to distribute processing from a central server process to delegate processes running on the same or different machines , being able to pass this type of copy would be useful. Also, in an application that had its user interface in MS Word and was supported by J-OLE and MS Access, it would be a simple matter to use VBA to select an 'appropriate locale-image' from MS Access, pass it to J, invoke the execution and then return to Word. But your question raises a more general issue... hasnt the time come to bring locales into the language proper rather than keep them as side-effects. One of the bigger differences between APL and J is the domain of the assignment operator. In APL, with the exception of Dyalog, it is restricted to data whose type is number, character or boxed. While in J it includes verbs, adverbs and conjunctions. Why not extend it to include locales? As I remember, in early versions of J, box could be modified with fit so that the boxed result carried a prototype with it. I think it went like this.... prototype=: 'this is the header';(i.10);'this is the tail' x=: (x)-: 103 104 105 106 However, the noun y=: 0$x had the property that >!.y would produce prototype. Perhaps you could use local_x=. Subject: Re: Jforum: J402 for the iMac Richard Hill: > > is there a recommended text for the linux/unix side? /Gosi: > > I am waiting for the J402 to become awailable for the iMac Just a reminder that http://juggle.gaertner.de/hitlist/ is open to everyone (Unixers and Windozers alike) to both register such requests and kind of "vote" for requests by spending a bit of virtual money on them. Richard Hill may be pleased to know that at this very moment, he would even be able to push the already filed request "unixman" from position 5 to the top if he dedicates all his 10 "$" to it. So, "X"/"jdict"/"pilot"/"labs" lovers, beware! Martin -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 27 15:00:20 1999 Date: Wed, 27 Jan 1999 21:48:18 +0200 (EET) From: Oleg Kobchenko Subject: Jforum: Mem allocation with dlls [was: LAPACK on Linux in Juggler] In-Reply-To: <36AF208B.1E97FBEC@balcab.ch> \begin{quote} On Thu, 14 Jan 1999 Martin Neitzel wrote: [about LAPACK libs] The access method to such libs (via 15!:0 et.al.) is completely the same under Windows and Unix systems. We not just talking about Linux here but about all other supported Unix systems, too. (Remember the 9!:12 logo on the juggle pages.) On Thu, 14 Jan 1999 Chris Burke wrote: I dont expect any significant problem running them under Linux as long as the dll mechanism is in place. \end{quote} I've had this question before, but it's more important condireing portability to Unix. There are alias verbs in J mema, memf, memr, memw, which handle binary allocated objects for use with dlls. On windows there are three ways for working with such objects: 1 memory handler, returned by ..Alloc 2 memory pointer, returned by ..Lock 3 resource handler, returned by e.g. GreateBitmap, etc. It is obvious that mem? verbs do not deal with 3, but in what way they deal with 1 and 2 is not clear. As an example you can see my clipbrd.ijs, where I had to intermix both the J mem? and winapi Global.. to achieve the result. I noticed that mem? verbs work one way (e.g. reading) with both 1 and 2 and the other way (e.g. writing) only with either 1 or 2. It becomes more interesting on Unix. I think all would be happy to peep into the chemistry of mem? verbs as to their relevance to the system memory hadling procedures. -- olegyk -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Wed Jan 27 16:20:27 1999 From: "Nichols, Peter" Subject: Jforum: Space of Variables Date: Wed, 27 Jan 1999 15:01:31 -0600 How do I find the amount of space a variable is using? Thanks. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 28 01:40:37 1999 From: Ajith Prasad Subject: RE: Jforum: Space of Variables Date: Thu, 28 Jan 1999 14:27:00 +0800 Importance: high X-Priority: 1 charset="ISO-8859-1" The on-line "J Phrases" mentions the following verbs and how they are used: v0=: time=: 6!:2 Time to execute y (or avg of x executes) m1=: space=: 7!:2 Space used to execute y v2=: ts=: 6!:2, 7!:2@] Time and space m1=: 7!:2 is what you need. -----Original Message----- From: Nichols, Peter [mailto:pnichols@sprinc.com] Sent: Thursday, January 28, 1999 5:02 AM Subject: Jforum: Space of Variables How do I find the amount of space a variable is using? Thanks. ---------------------------------------------------------------------------- ---- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 28 07:53:01 1999 From: "Bjorn G. Helgason" Subject: RE: Jforum: J402 for the iMac Date: Wed, 27 Jan 1999 21:38:38 -0000 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BE4ABC.3111A6A0" ------ =_NextPart_000_01BE4ABC.3111A6A0 From: Martin Neitzel[SMTP:neitzel@gaertner.de] > Just a reminder that http://juggle.gaertner.de/hitlist/ is open to everyone This hitlist is a very good idea. I did not know it was for J in general. I thought it was for J Unix only. I have already spent all my virtual money on it. Will I get more later ? /Gosi ------ =_NextPart_000_01BE4ABC.3111A6A0 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+Ig8MAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABwBAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEUAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAABmb3J1bUBqc29mdHdhcmUuY29tAFNNVFAAZm9ydW1AanNvZnR3YXJlLmNvbQAAAAAe AAIwAQAAAAUAAABTTVRQAAAAAB4AAzABAAAAFAAAAGZvcnVtQGpzb2Z0d2FyZS5jb20AAwAVDAEA AAADAP4PBgAAAB4AATABAAAAFgAAACdmb3J1bUBqc29mdHdhcmUuY29tJwAAAAIBCzABAAAAGQAA AFNNVFA6Rk9SVU1ASlNPRlRXQVJFLkNPTQAAAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAA AAAAAxs0AQiABwAYAAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABAB4AAABSRTogSmZv cnVtOiBKNDAyIGZvciB0aGUgaU1hYwAACQEFgAMADgAAAM8HAQAbABUAJgAmAAMAVgEBIIADAA4A AADPBwEAGwAVACEABQADADABAQmAAQAhAAAANEVFMDlERTcyRUI2RDIxMThCOUEyQ0ExRkZDMDAw MDAASAcBA5AGAFQDAAASAAAACwAjAAEAAAADACYAAAAAAAsAKQABAAAAAwA2AAAAAABAADkAIINP Zj1KvgEeAHAAAQAAAB4AAABSRTogSmZvcnVtOiBKNDAyIGZvciB0aGUgaU1hYwAAAAIBcQABAAAA FgAAAAG+Sj1mPued4E+2LhHSi5osof/AAAAAAB4AHgwBAAAABQAAAFNNVFAAAAAAHgAfDAEAAAAQ AAAAZ29zaUBjZW50cnVtLmlzAAMABhAvsUZ0AwAHEPcAAAAeAAgQAQAAAGUAAABGUk9NOk1BUlRJ Tk5FSVRaRUxTTVRQOk5FSVRaRUxAR0FFUlRORVJERUpVU1RBUkVNSU5ERVJUSEFUSFRUUDovL0pV R0dMRUdBRVJUTkVSREUvSElUTElTVC9JU09QRU5UT0VWAAAAAAIBCRABAAAA1wEAANMBAAATAwAA TFpGdSarWrb/AAoBDwIVAqgF6wKDAFAC8gkCAGNoCsBzZXQyNwYABsMCgzIDxQIAcHJCcRHic3Rl bQKDM/cC5AcTAoM0A0UTNQdtAoP2NRLMFMV9CoAIzwnZAoAHCoENsQtgbmcxMDOyOQr/MTYMIRNQ bxPQ6mMFQEYDYToK4RxbHUY3DIIF0ArAdAuAB7FpdAB6ZWxbU01UUEQ6biBkQGdhBJB06SEgci4N sF0KjwuRFWGFC/EgImtsaTM2DfA9Izw+HhcUUQvyHUZKddETwCBhIBnQbQuABIEsIHQRgAVAaAJA cDoALy9qdWdnbGVyLiGpL2ggcCTgE8AvYiAEACBvcAnwKKBvqCBldgSQeQIgZSJv/SN/VCqgBCAq pSsiKAAr8jggZ28EcCsgDbBhLiMkBixlSSBkMEAgbjkdYCBrMeAH4CBwIHduYQQgAhAFwEorIAOg Z38J8ASQB0AwhzGAKLAIYGcrKQAybFUDAHgrUG5svHkuMK4RgCvwJ/BsGdC0YWQv0HMrcSfhbAMg 0m0v0HZpACB1B0A44N8sMS/QAiAyYTZ2VwMQAyDfMYAzcAVABGAZ0CALYBPQxQXAPzCsL0dvAJAs ZQUY8QA+IAADABAQAAAAAAMAERAAAAAAQAAHMGCOPqA8Sr4BQAAIMGCOPqA8Sr4BHgA9AAEAAAAF AAAAUkU6IAAAAABo3Q== ------ =_NextPart_000_01BE4ABC.3111A6A0-- -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 28 08:43:31 1999 Date: Thu, 28 Jan 1999 08:31:21 -0500 From: Cliff Reiter Subject: Re: Jforum: Space of Variables Organization: Lafayette College Content-type: text/plain; charset=us-ascii References: <01074BD4EEC4D1118E3200805F6542A7177DA7@SPRDALLAS2.lafayette.edu> Nichols, Peter wrote: > > How do I find the amount of space a variable is using? > Thanks. > I take this to mean the space required for the binary representation of the variable. Consider: 3!:1 y Convert to Binary Representation. A string of the binary representa-tion of a noun y. The result is machine-dependent. I'm using an NT machine. a=.?1000$1000 $3!:1 a 4020 a=.?10000$1000 $3!:1 a 40020 But note this seems to be expensive in execution space in the sense that it isn't just a look up of a pointer. 7!:2 '$3!:1 a' where 7!:2 is space to execute 66688 Anyone suggest a better way? -- Clifford A. Reiter Mathematics Department, Lafayette College Easton, PA 18042 USA, 610-330-5277 ^^^ Note new phone exchange http://www.lafayette.edu/~reiterc -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Thu Jan 28 11:17:53 1999 From: "Roger Hui" Subject: Jforum: Re: Space of Variables Date: Thu, 28 Jan 1999 10:58:21 -0500 charset="iso-8859-1" Cliff Reiter writes on Thursday, January 29: >I take this to mean the space required for the binary representation >of the variable. Consider: > >3!:1 y Convert to Binary Representation. A string of the binary >representa-tion of a noun y. The result is machine-dependent. I'm >using an NT machine. > > a=.?1000$1000 > $3!:1 a >4020 > a=.?10000$1000 > $3!:1 a >40020 > >But note this seems to be expensive in execution space in the sense >that it isn't just a look up of a pointer. > > 7!:2 '$3!:1 a' where 7!:2 is space to execute >66688 > >Anyone suggest a better way? The function bb=: #@(3!:1) can be computed more cheaply as follows: bytes=: bhdr + brav bhdr =: 4: * 4: + #@] brav =: bpe@[ * (>.&.(%&4)@>:@(*/@]) ` (*/@])) @. (2&<@[) bpe =: (1 2 4 8 16&i.) { 1 1 4 8 16"_ t bytes s computes the number of bytes for an array of type t and shape s. This quantity is the number of bytes for the header plus that for the ravelled values. bhr s produces the bytes required by the header of an array with shape s, and t brav s is the bytes for the ravelled value for an array of type t and shape s. Subfunction bpe t produces the bytes per element, given a simple type t (1 boolean, 2 literal, 4 integer, 8 floating point, 16 complex). The bytes per element for other types is not computable. (There are extra bytes not accounted for in 3!:1, used by the J memory management code and the OS memory management code, but it would not be very productive to worry about that.) 4 bytes 1000 4020 bb 1000$1234 4020 4 bytes 10000 40020 bb 10000$1234 40020 8 bytes 2 3 4 220 bb o. i.2 3 4 220 2 bytes $x=. 'deipnosophist' 36 bb x 36 2 bytes 2 3 4 56 bb 2 3 4$x 56 -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 29 10:40:45 1999 Date: Fri, 29 Jan 1999 17:05:39 +0200 From: Anssi Seppala Subject: Jforum: JDLLServer registry entries ? In-Reply-To: <4.1.19990127120154.00a97510@pop.kolumbus.fi> References: <003c01be4960$60456040$1c0114d1@xps200> Content-Transfer-Encoding: 8bit Hi everybody, JREG.EXE does the registration well, but it pops up a dialog "Do you want to register...?". I have two questions: Is there a way to run JREG silent and without pop-up query? What are the registry entries if I would prefer to run regedit by myself during the installation? Thanks for any help, Anssi ------------------------------------------------------------------- Anssi Sepp�l� Konsultti, s�hk�markkinat ja s�hk�njakelu: Sovellukset ja ohjelmistot e-mail: anssi.seppala@enease.fi tel: +358 9 45400550 Enease Oy fax: +358 9 45400551 Mannerheimintie 66 A mob: +358 400 760077 FIN - 00260 HELSINKI, Finland http://www.kolumbus.fi/enease/ -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 29 11:27:55 1999 References: <010901be4ad7$3f3c67e0$360b14d1@f3nbp> Organization: Voxel From: "Andrew Nikitin" Date: Fri, 29 Jan 1999 17:07:41 +0200 (EET) Subject: Jforum: error messages Some errors in J are being marked by the circumflex: +/#'fsdfsdfsd |open quote | +/#'fsdfsdfsd | ^ Some of them, in contrary to previous case, are being marked by additional space before them: +/#(1 2+ |syntax error | +/#( 1 2+ Does this mean something special, or not? nsg -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 29 11:36:54 1999 From: "Roger Hui" Subject: Jforum: Re: error messages Date: Fri, 29 Jan 1999 11:19:25 -0500 charset="iso-8859-1" Andrew Nikitin writes on Friday, January 29: >Some errors in J are being marked by the circumflex: > > +/#'fsdfsdfsd >|open quote >| +/#'fsdfsdfsd >| ^ > >Some of them, in contrary to previous case, are being marked by additional >space before them: > > +/#(1 2+ >|syntax error >| +/#( 1 2+ > >Does this mean something special, or not? Not. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm From owner-jsoftware@lists.interlog.com Fri Jan 29 12:27:11 1999 Date: Fri, 29 Jan 1999 12:08:45 -0500 From: Eric Iverson Organization: Iverson Software Inc. Subject: Re: Jforum: JDLLServer registry entries ? References: <003c01be4960$60456040$1c0114d1@xps200> <4.1.19990129165233.009fd950@pop.kolumbus.fi> Anssi Seppala wrote: > JREG.EXE does the registration well, but it pops up a dialog "Do you want > to register...?". I have two questions: > > Is there a way to run JREG silent and without pop-up query? jreg.exe can register both the JDLLServer and the JEXEServer. Both j.exe and j.dll are 'self registering'. If you call j.exe with a /register parameter it will register itself and close. The j.dll is a little more complicated as you must load the dll and then call its DllSelfRegister method. There is an MS utilility called regsvr32.exe that can be used to register dlls. Do regsvr32.exe /? for documentation. -------------------------------------------------------------------------------- J Forum: for information about this list, see http://www.jsoftware.com/forum.htm