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authorRyan Harrison <rharrison@chromium.org>2017-11-08 16:02:00 +0000
committerChromium commit bot <commit-bot@chromium.org>2017-11-08 16:02:00 +0000
commit9a93484a61fe0e9b8a4a4c664f596857eb78f819 (patch)
treefac40c1741c1c374df02690d8505a8168fc36e04 /core/fpdftext
parentc064d54cd169390039eedae422bbb132f771d20a (diff)
downloadpdfium-9a93484a61fe0e9b8a4a4c664f596857eb78f819.tar.xz
Make sure that iterator stays in bounds during IsHypen
BUG=chromium:782596,chromium:781804 Change-Id: I020be3cf813221bb8314f045d83014a25cb9a950 Reviewed-on: https://pdfium-review.googlesource.com/18070 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
Diffstat (limited to 'core/fpdftext')
-rw-r--r--core/fpdftext/cpdf_textpage.cpp13
1 files changed, 5 insertions, 8 deletions
diff --git a/core/fpdftext/cpdf_textpage.cpp b/core/fpdftext/cpdf_textpage.cpp
index 6ccadff701..485fba24a8 100644
--- a/core/fpdftext/cpdf_textpage.cpp
+++ b/core/fpdftext/cpdf_textpage.cpp
@@ -1226,20 +1226,17 @@ bool CPDF_TextPage::IsHyphen(wchar_t curChar) const {
return false;
auto iter = curText.rbegin();
- for (; iter != curText.rend() && *iter == 0x20; iter++) {
+ for (; (iter + 1) != curText.rend() && *iter == 0x20; iter++) {
// Do nothing
}
- if (iter != curText.rend()) {
- if (!IsHyphenCode(*iter))
- return false;
+ if (!IsHyphenCode(*iter))
+ return false;
+
+ if ((iter + 1) != curText.rend()) {
iter++;
if (FXSYS_iswalpha(*iter) && FXSYS_iswalpha(*iter))
return true;
- } else {
- iter--;
- if (!IsHyphenCode(*iter))
- return false;
}
const PAGECHAR_INFO* preInfo;