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Diffstat (limited to 'support/cluttex/src/texrunner/safename.lua')
-rw-r--r--support/cluttex/src/texrunner/safename.lua62
1 files changed, 62 insertions, 0 deletions
diff --git a/support/cluttex/src/texrunner/safename.lua b/support/cluttex/src/texrunner/safename.lua
new file mode 100644
index 0000000000..0014b59b92
--- /dev/null
+++ b/support/cluttex/src/texrunner/safename.lua
@@ -0,0 +1,62 @@
+--[[
+ 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,
+}