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authorManuel Pégourié-Gonnard <mpg@elzevir.fr>2011-06-15 21:20:32 +0000
committerManuel Pégourié-Gonnard <mpg@elzevir.fr>2011-06-15 21:20:32 +0000
commitc7d052e5102b248468453da945fb8a8f856dda18 (patch)
treefc9774ad7c981de1b2e17259022e1a5c7d15ed60 /Master/texmf-dist/tex/latex/latexconfig/lualatexquotejobname.lua
parent0ac28632ecbf46fb9ba8891f515e643c70d3293b (diff)
lualatex jobname quoting: mimic web2c's normalize_quotes()
Currently done in the Lua version only. git-svn-id: svn://tug.org/texlive/trunk@22993 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/tex/latex/latexconfig/lualatexquotejobname.lua')
-rw-r--r--Master/texmf-dist/tex/latex/latexconfig/lualatexquotejobname.lua33
1 files changed, 33 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/latex/latexconfig/lualatexquotejobname.lua b/Master/texmf-dist/tex/latex/latexconfig/lualatexquotejobname.lua
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+++ b/Master/texmf-dist/tex/latex/latexconfig/lualatexquotejobname.lua
@@ -0,0 +1,33 @@
+-- $Id: lualatexquotejobname.tex 22957 2011-06-13 20:49:26Z mpg $
+-- Manuel Pegourie-Gonnard, originally written 2010. WTFPL v2.
+--
+-- Used in lualatexquotejobname.tex
+--
+-- Try to replicate web2c's function normalize_quotes() (in lib/texmfmp.c,
+-- non-XeTeX version) as closely as possible (that is, exactly except error
+-- handling).
+--
+-- Cache the results of previous calls, not so much for the speed gain which
+-- probably doesn't matter, but to avoid repeated error messages.
+local jobname_cache = {}
+callback.register('process_jobname', function(jobname)
+ -- use a cached version if available
+ local cached = jobname_cache[jobname]
+ if cached ~= nil then return cached end
+ -- remove the quotes in jobname
+ local clean, n_quotes = jobname:gsub([["]], [[]])
+ -- complain if they wasn't an even number of quotes (aka unbalanced)
+ if n_quotes % 2 ~= 0 then
+ -- this code is executed when jobname is first expanded, which is
+ -- probably too late for an early exit as in web2c's normalize_quotes()
+ -- so, just throw an error without exiting
+ texio.write_nl('! Unbalanced quotes in jobname: ' .. jobname )
+ end
+ -- add quotes around the clean up jobname if necessary
+ if jobname:find(' ') then
+ clean = '"' .. clean .. '"'
+ end
+ -- remember the result before returning
+ jobname_cache[jobname] = clean
+ return clean
+end)