💾 Archived View for gemini.conman.org › extensions › GLV-1 › handlers › wrap2.lua captured on 2021-12-17 at 13:26:06.
⬅️ Previous capture (2021-12-03)
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-- ************************************************************************
--
-- Another text wrapping experiment.
-- Copyright 2019 by Sean Conner. All Rights Reserved.
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
--
-- Comments, questions and criticisms can be sent to: sean@conman.org
--
-- ************************************************************************
-- luacheck: globals handler
-- luacheck: ignore 611 631
-- RFC-3875
local tonumber = tonumber
local ASCII = [[ !"#$%&'()*+,-./0123456789:;<=>?]]
.. [[@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_]]
.. [[`abcdefghijklmnopqrstuvwxyz{|}~]]
_ENV = {}
-- ************************************************************************
function handler(_,_,_,match,ios)
ios:write("20 text/plain\r\n")
local width = tonumber(match[1]) or 80
for i = 1 , #ASCII do
local line = ""
local p = i
while #line < width do
if p > #ASCII then p = p - #ASCII end
line = line .. (ASCII:sub(p,p + width) .. ASCII:sub(1,p - 1)):sub(1,width)
p = p + #ASCII
end
ios:write(line:sub(1,width),"\r\n")
end
return 20
end
-- ************************************************************************
return _ENV