Less_Parser: Faster skipWhitespace() by using native strspn()

Code change similiar to fe5f50a Change-Id: I190ca66c96a32c6386cd36eadfc8d924f14c3574
wikimedia · Aug 10, 2023 · 7d6bb56 · 7d6bb56
1 parent 1b813d6
commit 7d6bb56
Showing 1 changed file with 2 additions and 8 deletions.
diff --git a/lib/Less/Parser.php b/lib/Less/Parser.php
@@ -840,14 +840,8 @@ public function PeekChar( $tok ) {
 	 */
 	public function skipWhitespace( $length ) {
 		$this->pos += $length;
-
-		for ( ; $this->pos < $this->input_len; $this->pos++ ) {
-			$c = $this->input[$this->pos];
-
-			if ( ( $c !== "\n" ) && ( $c !== "\r" ) && ( $c !== "\t" ) && ( $c !== ' ' ) ) {
-				break;
-			}
-		}
+		// Optimization: Skip over irrelevant chars without slow loop
+		$this->pos += strspn( $this->input, "\n\r\t ", $this->pos );
 	}
 
 	/**