From 077ce5cdefea6299fbc3edbf0bacff10b7b72a4d Mon Sep 17 00:00:00 2001
From: nyamatongwe <devnull@localhost>
Date: Mon, 16 Aug 2010 17:11:18 +1000
Subject: Bug #3045386 fixed: Markdown lexer can hang in an infinite loop Fix
 from Colomban Wendling.

---
 lexers/LexMarkdown.cxx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'lexers')

diff --git a/lexers/LexMarkdown.cxx b/lexers/LexMarkdown.cxx
index df081de31..e3ffa6670 100644
--- a/lexers/LexMarkdown.cxx
+++ b/lexers/LexMarkdown.cxx
@@ -103,9 +103,9 @@ static void SetStateAndZoom(const int state, const int length, const int token,
 static bool HasPrevLineContent(StyleContext &sc) {
     int i = 0;
     // Go back to the previous newline
-    while ((--i + sc.currentPos) && !IsNewline(sc.GetRelative(i)))
+    while ((--i + (int)sc.currentPos) >= 0 && !IsNewline(sc.GetRelative(i)))
         ;
-    while (--i + sc.currentPos) {
+    while ((--i + (int)sc.currentPos) >= 0) {
         if (IsNewline(sc.GetRelative(i)))
             break;
         if (!IsASpaceOrTab(sc.GetRelative(i)))
-- 
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