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Make nsFind::Find handle empty string searches.

master
Fedor 2019-06-12 13:43:31 +03:00
parent e53bfec76a
commit e0c3ac5fb4
1 changed files with 5 additions and 0 deletions
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5
embedding/components/find/nsFind.cpp
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@ -966,6 +966,11 @@ nsFind::Find(const char16_t* aPatText, nsIDOMRange* aSearchRange,
const char16_t* patStr = patAutoStr.get();
int32_t patLen = patAutoStr.Length() - 1;
// If this function is called with an empty string, we should early exit.
if (patLen < 0) {
return NS_OK;
}
// current offset into the pattern -- reset to beginning/end:
int32_t pindex = (mFindBackward ? patLen : 0);