Tagged 0.7.5

[scuttle] / includes / utf8 / strspn.php

diff --git a/includes/utf8/strspn.php b/includes/utf8/strspn.php
new file mode 100644 (file)
index 0000000..ee0b02e
--- /dev/null
+++ b/includes/utf8/strspn.php
@@ -0,0 +1,36 @@
+<?php
+/**
+* @version $Id: strspn.php,v 1.1 2006/02/25 13:50:17 harryf Exp $
+* @package utf8
+* @subpackage strings
+*/
+
+//---------------------------------------------------------------
+/**
+* UTF-8 aware alternative to strspn
+* Find length of initial segment matching mask
+* Note: requires utf8_strlen and utf8_substr (if start, length are used)
+* @param string
+* @return int
+* @see http://www.php.net/strspn
+* @package utf8
+* @subpackage strings
+*/
+function utf8_strspn($str, $mask, $start = NULL, $length = 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;
+
+}
+