first commit

libraries/vendor/joomla/string/src/phputf8/strcspn.php

@@ -0,0 +1,37 @@
+<?php
+
+/**
+* @package utf8
+*/
+
+//---------------------------------------------------------------
+/**
+* UTF-8 aware alternative to strcspn
+* Find length of initial segment not matching mask
+* Note: requires utf8_strlen and utf8_substr (if start, length are used)
+* @param string
+* @return int
+* @see http://www.php.net/strcspn
+* @see utf8_strlen
+* @package utf8
+*/
+function utf8_strcspn($str, $mask, $start = null, $length = null)
+{
+    if (empty($mask) || strlen($mask) == 0) {
+        return null;
+    }
+
+    $mask = preg_replace('!([\\\\\\-\\]\\[/^])!', '\\\${1}', $mask);
+
+    if ($start !== null || $length !== null) {
+        $str = utf8_substr($str, $start, $length);
+    }
+
+    preg_match('/^[^' . $mask . ']+/u', $str, $matches);
+
+    if (isset($matches[0])) {
+        return utf8_strlen($matches[0]);
+    }
+
+    return 0;
+}