Escape tag search string

Fixes moodlehq#63
stronk7 · Nov 20, 2020 · 8a13076 · 8a13076
1 parent f6592aa
commit 8a13076
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/file.php b/file.php
@@ -1150,7 +1150,7 @@ public function get_line_number(local_moodlecheck_file $file, $substring = null)
         if ($substring === null) {
             return $line0;
         } else {
-            $chunks = preg_split('!' . $substring . '!', $this->originaltoken[1]);
+            $chunks = preg_split('!' . preg_quote($substring, '!') . '!', $this->originaltoken[1]);
             if (count($chunks) > 1) {
                 $lines = preg_split('/\n/', $chunks[0]);
                 return $line0 + count($lines) - 1;