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findadv: avoid crash when regexp-based search fails (mitigates #10625).

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Tommaso Cucinotta 2017-04-16 11:27:34 +02:00
parent a1024781bc
commit ecc36be60b
1 changed files with 2 additions and 0 deletions
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2
src/lyxfind.cpp
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@ -961,6 +961,8 @@ int MatchStringAdv::findAux(DocIterator const & cur, int len, bool at_begin) con
LYXERR(Debug::FIND, "Searching in regexp mode: at_begin=" << at_begin);
regex const & p_regexp = at_begin ? regexp : regexp2;
sregex_iterator re_it(str.begin(), str.end(), p_regexp);
if (re_it == std::sregex_iterator())
return 0;
match_results<string::const_iterator> const & m = *re_it;
// Check braces on the segment that matched the entire regexp expression,