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Fix bug #8220: tex2lyx crashes on single-character commands

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Fix commit [aa9fed93/lyxgit]: it is never a good idea to call substr(4) on a string without checking its length. Moreover, it is even better in this case to check that the first letters are "text" as the reminder of the code assumes...
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Jean-Marc Lasgouttes 2012-06-25 11:04:56 +02:00
parent 9466967f0e
commit 2a13b02a94
1 changed files with 2 additions and 1 deletions
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src/tex2lyx/text.cpp
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@ -3573,7 +3573,8 @@ void parse_text(Parser & p, ostream & os, unsigned flags, bool outer,
context.font.language, lang);
}
else if (is_known(t.cs().substr(4, string::npos), polyglossia_languages)) {
else if (prefixIs(t.cs(), "text")
&& is_known(t.cs().substr(4), polyglossia_languages)) {
// scheme is \textLANGUAGE{text} where LANGUAGE is in polyglossia_languages[]
string lang;
// We have to output the whole command if it has an option