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textsplit: check for underflow while trimming the span

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This commit is contained in:
Jean-Francois Dockes 2014-05-19 18:52:51 +02:00
parent 12acdc4faf
commit 96d99ad6e5
1 changed files with 2 additions and 1 deletions
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3
src/common/textsplit.cpp
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@ -390,7 +390,8 @@ inline bool TextSplit::doemit(bool spanerase, int bp)
case '_':
case '\'':
m_span.resize(m_span.length()-1);
if (m_words_in_span.back().second > m_span.size())
if (m_words_in_span.size() &&
m_words_in_span.back().second > m_span.size())
m_words_in_span.back().second = m_span.size();
if (--bp < 0)
bp = 0;