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Handle combining characters in writeScriptChars

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They were output in the wrong order and thus produced wrong result.
This commit is contained in:
Juergen Spitzmueller 2018-04-20 18:17:18 +02:00
parent a6c6bffbed
commit d77c0707e0
1 changed files with 17 additions and 3 deletions
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20
src/Paragraph.cpp
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@ -330,7 +330,8 @@ public:
/// Output consecutive unicode chars, belonging to the same script as
/// specified by the latex macro \p ltx, to \p os starting from \p i.
/// \return the number of characters written.
int writeScriptChars(otexstream & os, docstring const & ltx,
int writeScriptChars(OutputParams const &, otexstream & os,
docstring const & ltx,
Change const &, Encoding const &,
std::string const, pos_type & i);
@ -965,7 +966,8 @@ bool Paragraph::Private::simpleTeXBlanks(OutputParams const & runparams,
}
int Paragraph::Private::writeScriptChars(otexstream & os,
int Paragraph::Private::writeScriptChars(OutputParams const & runparams,
otexstream & os,
docstring const & ltx,
Change const & runningChange,
Encoding const & encoding,
@ -1022,6 +1024,18 @@ int Paragraph::Private::writeScriptChars(otexstream & os,
// Stop here if there is a font attribute or encoding change.
if (found && cit != end && prev_font != cit->font())
break;
// Check whether we have a combining pair
char_type next_next = '\0';
if (i + 2 < size) {
next_next = text_[i + 2];
if (Encodings::isCombiningChar(next_next)) {
length += latexSurrogatePair(os, next, next_next, runparams) - 1;
i += 2;
continue;
}
}
docstring const latex = encoding.latexChar(next).first;
docstring::size_type const b1 =
latex.find_first_of(from_ascii("{"));
@ -1364,7 +1378,7 @@ void Paragraph::Private::latexSpecialChar(otexstream & os,
fontenc = running_font.language()->fontenc();
if (Encodings::isKnownScriptChar(c, script)
&& prefixIs(latex.first, from_ascii("\\" + script)))
column += writeScriptChars(os, latex.first,
column += writeScriptChars(runparams, os, latex.first,
running_change, encoding,
fontenc, i) - 1;
else if (latex.second