💾 Archived View for tilde.pink › ~smallbird › tweetogemini.gmi captured on 2024-03-21 at 16:16:01. Gemini links have been rewritten to link to archived content
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Converts Twine's Twee markup to a series of navigable Gemini files so you can put your choose-your-own adventure games in Gemini space. Works best with simple games without macros, styling, scripting, or variables (basically, ones that function by using links only).
Copy this code to a file called gemitwee.php. Used like `php gemitwee.php twee_file.twee output_dir`
<?php
// converts twee markup to gemini files
// note: does not consider markup, formatting, etc. most gemini clients will not parse
// markdown and instead leave it verbatim. this works best with games that use no logic
// and don't rely on styling, macros, or additional scripting to work.
if ($argc < 2) {
echo "Error: No twee file provided in arguments";
die(1);
}
if ($argv[1] == "--help") {
echo "SYNTAX: php gemitwee.php twee_file_name.twee [output_directory]\n";
die(1);
}
$gamefile = explode("\n", file_get_contents($argv[1]));
if (!$gamefile) {
echo 'Error: File not read. Check permissions and file format';
die(1);
}
$buffer = "";
$sections = array();
$currentheader = "";
$endbuffer = "";
$results = array();
$footnotecounter = 1;
$start;
foreach ($gamefile as $i => $line) {
$results[$i] = array();
preg_match('/:: (.+)\s?[\[{<]/', $line, $results[$i]['header']);
if (count($results[$i]['header']) > 0) {
// this is a section header
print_r('Header: '.$currentheader."\n");
if ($currentheader != "" && (!preg_match('/\[stylesheet\]/', $line, $results[$i]['stylesheet']) || !preg_match('/\[script\]/', $line, $results[$i]['script']))) {
// skip and dump buffer if this is a stylesheet or script block
// then write the content
$sections[$currentheader] = $buffer;
if ($endbuffer != "") {
$sections[$currentheader] .= "\n".$endbuffer;
}
}
// reset variables
$footnotecounter = 1;
$endbuffer = "";
$buffer = "";
$currentheader = trim($results[$i]['header'][1]);
if (preg_match('/\[Start\]/', $currentheader, $isstart) == 1) {
// if this is the start block, remember that
$start = trim($currentheader);
}
$sections[$currentheader] = "";
} else {
// add line to buffer
preg_match('/^\[\[(.+)->(.+)\]\]$/', $line, $results[$i]['standalone']);
if (count($results[$i]['standalone']) > 0) {
// this is a link on its own line
$line = "=> !!".$results[$i]['standalone'][2]."!! ".$results[$i]['standalone'][1]."\n";
}
preg_match('/^\[\[(.+)\]\]$/', $line, $results[$i]['standalone_noarrow']);
if (count($results[$i]['standalone_noarrow']) > 0) {
// this is a link on its own line
$line = "=> !!".$results[$i]['standalone_noarrow'][1]."!! ".$results[$i]['standalone_noarrow'][1]."\n";
}
$c = preg_match_all('/\[\[([\w\d\s,\.:!\"?+-]+)->([\w\d\s,\.:!\"?+-]+)\]\]/', $line, $results[$i]['inline_arrow']);
if ($c > 0) {
// this is a link in the middle of a line. we'll add a footnote
for ($j = 0; $j < count($results[$i]['inline_arrow'][0]); $j++) {
$linktext = $results[$i]['inline_arrow'][1][$j];
$line = str_replace($results[$i]['inline_arrow'][0][$j], "$linktext"."[$footnotecounter]", $line);
$endbuffer .= "=> !!".$results[$i]['inline_arrow'][2][$j]."!! [$footnotecounter] ".$results[$i]['inline_arrow'][1][$j]."\n";
$footnotecounter++;
}
}
$c = preg_match_all('/\[\[([\w\d\s,\.:!\"?+-]+)\]\]/', $line, $results[$i]['inline_noarrow']);
if ($c > 0) {
// this is a link in the middle of a line. we'll add a footnote
for ($k = 0; $k < count($results[$i]['inline_noarrow'][0]); $k++) {
$linktext = $results[$i]['inline_noarrow'][1][$k];
$line = str_replace($results[$i]['inline_noarrow'][0][$k], "$linktext"."[$footnotecounter]", $line);
$endbuffer .= "=> !!".$results[$i]['inline_noarrow'][1][$k]."!! [$footnotecounter] ".$results[$i]['inline_noarrow'][1][$k]."\n";
$footnotecounter++;
}
}
$buffer .= $line."\n";
}
}
$sections[$currentheader] = $buffer;
if ($endbuffer != "") {
$sections[$currentheader] .= "\n".$endbuffer;
}
$uuids = array();
foreach (array_keys($sections) as $key) {
if ($key == $start) {
$uuids[$key] = "index";
} else {
$uuids[$key] = uniqid("", true);
}
}
foreach($sections as $key=>$section) {
$c = preg_match_all('/!!([\w\s\d\.,:;"-+=]+)!!/', $section, $output_array);
if ($c > 0) {
for ($l = 0; $l < count($output_array[0]); $l++) {
$search = $output_array[0][$l];
$section = str_replace($search, $uuids[$output_array[1][$l]].".gmi", $section);
}
}
file_put_contents(dirname(__FILE__)."/".$argv[2]."/".$uuids[$key].".gmi", $section);
}
echo "\nTwee > Gemini conversion complete.";