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-rw-r--r--doc/luaotfload-latex.tex73
1 files changed, 55 insertions, 18 deletions
diff --git a/doc/luaotfload-latex.tex b/doc/luaotfload-latex.tex
index 32ad3cb..e3541c5 100644
--- a/doc/luaotfload-latex.tex
+++ b/doc/luaotfload-latex.tex
@@ -230,48 +230,85 @@
\catcode 32 \othercatcode %% \spaceasciicode
}
+\directlua {
+ document = document or { }
+ document.vrbcatcodesidx = tonumber (\the \vrbcatcodes)
+}
+
\newcatcodetable \literalcatcodes
\setcatcodetable \literalcatcodes {%
\catcodetable \CatcodeTableString
\catcode 32 \activecatcode %% \spaceasciicode
}
+\def \listingsurroundskip {\vskip \baselineskip}
+
\def \beginlisting {%
+ \noindent
\begingroup
\catcodetable \vrbcatcodes
\beginlistingindeed%
}
\directlua {
- local texprint = tex.print
- local stringsub = string.sub
- local backslash = string.char (0x5c)
- document = document or { }
+ local texsprint = tex.sprint
+ local stringis_empty = string.is_empty
+ local stringsub = string.sub
+ local stringgsub = string.gsub
+ %local backslash = unicode.utf8.char (0x200c)
+ local backslash = unicode.utf8.char (0x5c)
+ local escaped = [[\string\string\string\]]
document.printlines = function (buffer)
- for _, line in next, string.explode (buffer, "\noexpand\n") do
- if stringsub (line, 1, 1) == " " then
- line = backslash .. line
+ local lines = string.explode (buffer, "\noexpand\n")
+ print ""
+ for i, line in next, lines do
+ local line = stringgsub (line, backslash, escaped)
+ if stringis_empty (line) then
+ print (i, "listing: <empty line />")
+ texsprint [[\string\listingpar]]
+ else
+ local line = [[\string\beginlistingline]]
+ .. line
+ .. [[\string\endlistingline]]
+ .. [[\string\listingpar]]
+ print (i, "listing: «" .. line .. "»")
+ texsprint (document.vrbcatcodesidx, line)
end
- texprint (-1, line)
- texprint (-1, "")
end
end
}
+\def \listingpar {\endgraf}
+
+\let \endlistingline \relax
+\let \endlisting \relax
+
+\protected \def \beginlistingline{%
+ \leavevmode
+ \begingroup
+ \beginlistinglineindeed%
+}
+
+\def \beginlistinglineindeed #1\endlistingline{%
+ \endgroup
+ \hbox{%
+ \addfontfeature {RawFeature=-tlig;-liga}%% So one can’t just turn them all off at once using the ``Ligatures`` key?
+ \obeyspaces
+ #1}%
+}
+
\def \beginlistingindeed#1\endlisting{%
\endgroup
\begingroup
+ \endgraf
+ \listingsurroundskip
\ttfamily
\small
- \begin {quote}
- \bgroup
- \addfontfeature {RawFeature=-tlig;-liga}%% So one can’t just turn them all off at once using the ``Ligatures`` key?
- \catcodetable \literalcatcodes
- \obeyspaces
- \obeylines
- \directlua{document.printlines ([==[\detokenize {#1}]==])}
- \egroup
- \end {quote}
+ \parindent = 0em
+ \leftskip = 2em
+ \hangindent = 2em
+ \directlua{document.printlines ([==[\detokenize {#1}]==])}%
+ \listingsurroundskip
\endgroup
}