extract a slice of headingCount

As reported in #1, memory error may happen on line 115. It is not clear why it happens, anyway rewrite code using array_slice
ssahara · May 27, 2019 · 1e137f7 · 1e137f7
1 parent 6f59357
commit 1e137f7
Showing 1 changed file with 2 additions and 5 deletions.
diff --git a/syntax.php b/syntax.php
@@ -110,11 +110,8 @@ function handle($match, $state, $pos, Doku_Handler $handler) {
         }
 
         // build tiered numbers for hierarchical headings
-        $numbers = [];
-        for ($i = $this->startlevel; $i <= $level; $i++) {
-            $numbers[] = $this->headingCount[$i];
-        }
-        if ($numbers) {
+        if ($this->startlevel <= $level) {
+            $numbers = array_slice($this->headingCount, $this->startlevel -1, $level - $this->startlevel +1);
             $tieredNumber = implode('.', $numbers);
             if (count($numbers) == 1) {
                 // append always tailing dot for single tiered number