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Fix output of quote ligatures with TeX font LuaTeX

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Fixes: #10988
(cherry picked from commit 5fce313ffc)
This commit is contained in:
Juergen Spitzmueller 2018-01-21 12:24:02 +01:00
parent 5018d23ff9
commit 17e241c694
1 changed files with 8 additions and 2 deletions
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10
src/insets/InsetQuotes.cpp
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@ -901,15 +901,21 @@ void InsetQuotes::latex(otexstream & os, OutputParams const & runparams) const
if (!runparams.pass_thru) {
// Guard against unwanted ligatures with preceding text
char_type const lastchar = os.lastChar();
// LuaTeX does not respect {} as ligature breaker by design,
// see https://tex.stackexchange.com/q/349725/19291
docstring const nolig =
(runparams.flavor == OutputParams::LUATEX
|| runparams.flavor == OutputParams::DVILUATEX) ?
from_ascii("\\/") : from_ascii("{}");
// !` ?` => !{}` ?{}`
if (prefixIs(qstr, from_ascii("`"))
&& (lastchar == '!' || lastchar == '?'))
os << "{}";
os << nolig;
// ``` ''' ,,, <<< >>>
// => `{}`` '{}'' ,{},, <{}<< >{}>>
if (contains(from_ascii(",'`<>"), lastchar)
&& prefixIs(qstr, lastchar))
os << "{}";
os << nolig;
}
os << qstr;