Initial commit

#pma/libraries/stringMb.lib.php

@@ -0,0 +1,76 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/** String Functions for phpMyAdmin
+ *
+ * If mb_* functions don't exist, we create the ones we need and they'll use the
+ * standard string functions.
+ *
+ * All mb_* functions created by PMA should behave as mb_* functions.
+ *
+ * @package PhpMyAdmin
+ */
+if (! defined('PHPMYADMIN')) {
+    exit;
+}
+
+if (!@function_exists('mb_ord')) {
+    /**
+     * Perform a regular expression match
+     *
+     * Take care: might not work with lookbehind expressions.
+     *
+     * @param string $pattern Pattern to search for
+     * @param string $subject Input string
+     * @param int    $offset  Start from search
+     *
+     * @return int 1 if matched, 0 if doesn't, false on failure
+     */
+    function mb_preg_strpos($pattern, $subject, $offset = 0)
+    {
+        $matches = array();
+        $bFind = preg_match(
+            $pattern, mb_substr($subject, $offset), $matches, PREG_OFFSET_CAPTURE
+        );
+        if (1 !== $bFind) {
+            return false;
+        }
+
+        return $matches[1][1] + $offset;
+    }
+
+    /**
+     * Get the ordinal value of a string
+     *
+     * @param string $string the string for which ord is required
+     *
+     * @return int the ord value
+     */
+    function mb_ord($string)
+    {
+        if (false === $string || null === $string || '' === $string) {
+            return 0;
+        }
+
+        $str = mb_convert_encoding($string, "UCS-4BE", "UTF-8");
+        $substr = mb_substr($str, 0, 1, "UCS-4BE");
+        $val = unpack("N", $substr);
+        return $val[1];
+    }
+
+    /**
+     * Get the character of an ASCII
+     *
+     * @param int $ascii the ASCII code for which character is required
+     *
+     * @return string the character
+     */
+    function mb_chr($ascii)
+    {
+        return mb_convert_encoding(
+            pack("N", $ascii),
+            mb_internal_encoding(),
+            'UCS-4BE'
+        );
+    }
+
+}