md4c

commit 3ec2a19596cdd1131046193509ca26ccc4f05d9a
parent f9b4cb8f6e33d04b9940cb6e77ea6987e1888b88
Author: Martin Mitas <mity@morous.org>
Date:   Thu, 15 Dec 2016 23:57:58 +0100

md_analyze_backtick: Ensire that code span opener and closer do not overlap.

Diffstat:
M
md4c/md4c.c
 | 
6
++++--

1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/md4c/md4c.c b/md4c/md4c.c
@@ -2685,8 +2685,10 @@ md_analyze_backtick(MD_CTX* ctx, int mark_index)
              * itself to swallow it. */
             while(CH(opener->end) == _T(' ')  ||  ISNEWLINE(opener->end))
                 opener->end++;
-            while(CH(mark->beg-1) == _T(' ')  ||  ISNEWLINE(mark->beg-1))
-                mark->beg--;
+            if(mark->beg > opener->end) {
+                while(CH(mark->beg-1) == _T(' ')  ||  ISNEWLINE(mark->beg-1))
+                    mark->beg--;
+            }
 
             /* Done. */
             return;