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--[[
Copyright 2019 ARATA Mizuki
This file is part of ClutTeX.
ClutTeX 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.
ClutTeX 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 ClutTeX. If not, see <http://www.gnu.org/licenses/>.
]]
local string = string
local table = table
local function dounsafechar(c)
if c == " " then
return "_"
else
return string.format("_%02x", c:byte(1))
end
end
local function escapejobname(name)
return (string.gsub(name, "[%s\"$%%&'();<>\\^`|]", dounsafechar))
end
local function handlespecialchar(s)
return (string.gsub(s, "[%\\%%^%{%}%~%#]", "~\\%1"))
end
local function handlespaces(s)
return (string.gsub(s, " +", function(s) return string.rep(" ", #s, "~") end))
end
local function handlenonascii(s)
return (string.gsub(s, "[\x80-\xFF]+", "\\detokenize{%1}"))
end
local function safeinput(name, engine)
local escaped = handlespaces(handlespecialchar(name))
if engine.name == "pdftex" or engine.name == "pdflatex" then
escaped = handlenonascii(escaped)
end
if name == escaped then
return string.format("\\input\"%s\"", name)
else
return string.format("\\begingroup\\escapechar-1\\let~\\string\\edef\\x{\"%s\" }\\expandafter\\endgroup\\expandafter\\input\\x", escaped)
end
end
return {
escapejobname = escapejobname,
safeinput = safeinput,
}
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