Fix some case of pattern parsing errors

We could accidentally hit an off by one string array access
due to improper loop exit when parsing patterns

diff --git a/libxslt/pattern.c b/libxslt/pattern.c
index 8ce74e3..e0aebff 100644 (file)
--- a/libxslt/pattern.c
+++ b/libxslt/pattern.c
@@ -1864,6 +1864,8 @@ xsltCompilePatternInternal(const xmlChar *pattern, xmlDocPtr doc,
                while ((pattern[end] != 0) && (pattern[end] != '"'))
                    end++;
            }
+           if (pattern[end] == 0)
+               break;
            end++;
        }
        if (current == end) {