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Bug 1068218: Don't pass lone surrogates to GetDirectionFromChar, r=ehsan

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This commit is contained in:
Simon Montagu 2014-09-19 00:18:47 -07:00
parent ec1e4bc2cd
commit 7462d278ae
1 changed files with 8 additions and 5 deletions
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13
content/base/src/DirectionalityUtils.cpp
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@ -320,12 +320,15 @@ GetDirectionFromText(const char16_t* aText, const uint32_t aLength,
current++;
}
Directionality dir = GetDirectionFromChar(ch);
if (dir != eDir_NotSet) {
if (aFirstStrong) {
*aFirstStrong = current;
// Just ignore lone surrogates
if (!IS_SURROGATE(ch)) {
Directionality dir = GetDirectionFromChar(ch);
if (dir != eDir_NotSet) {
if (aFirstStrong) {
*aFirstStrong = current;
}
return dir;
}
return dir;
}
}