* Added a versionRequired() function to OutputPage, useful for extension

[lhc/web/wiklou.git] / includes / normal / UtfNormalUtil.php

diff --git a/includes/normal/UtfNormalUtil.php b/includes/normal/UtfNormalUtil.php
index 039ac3c..06e0bb4 100644 (file)
--- a/includes/normal/UtfNormalUtil.php
+++ b/includes/normal/UtfNormalUtil.php
@@ -21,10 +21,20 @@
  * Some of these functions are adapted from places in MediaWiki.
  * Should probably merge them for consistency.
  *
- * @package MediaWiki
+ * @package UtfNormal
+ * @access public
  */
 
 /** */
+
+/**
+ * Return UTF-8 sequence for a given Unicode code point.
+ * May die if fed out of range data.
+ *
+ * @param int $codepoint
+ * @return string
+ * @access public
+ */
 function codepointToUtf8( $codepoint ) {
        if($codepoint <         0x80) return chr($codepoint);
        if($codepoint <    0x800) return chr($codepoint >>      6 & 0x3f | 0xc0) .
@@ -40,6 +50,15 @@ function codepointToUtf8( $codepoint ) {
        die("Asked for code outside of range ($codepoint)\n");
 }
 
+/**
+ * Take a series of space-separated hexadecimal numbers representing
+ * Unicode code points and return a UTF-8 string composed of those
+ * characters. Used by UTF-8 data generation and testing routines.
+ *
+ * @param string $sequence
+ * @return string
+ * @access private
+ */
 function hexSequenceToUtf8( $sequence ) {
        $utf = '';
        foreach( explode( ' ', $sequence ) as $hex ) {
@@ -49,6 +68,28 @@ function hexSequenceToUtf8( $sequence ) {
        return $utf;
 }
 
+/**
+ * Take a UTF-8 string and return a space-separated series of hex
+ * numbers representing Unicode code points. For debugging.
+ *
+ * @param string $str
+ * @return string
+ * @access private
+ */
+function utf8ToHexSequence( $str ) {
+       return rtrim( preg_replace( '/(.)/uSe',
+                                   'sprintf("%04x ", utf8ToCodepoint("$1"))',
+                                   $str ) );
+}
+
+/**
+ * Determine the Unicode codepoint of a single-character UTF-8 sequence.
+ * Does not check for invalid input data.
+ *
+ * @param string $char
+ * @return int
+ * @access public
+ */
 function utf8ToCodepoint( $char ) {
        # Find the length
        $z = ord( $char{0} );
@@ -79,10 +120,16 @@ function utf8ToCodepoint( $char ) {
                $z |= ord( $char{$i} ) & 0x3f;
        }
 
-       # Make entity
        return $z;
 }
 
+/**
+ * Escape a string for inclusion in a PHP single-quoted string literal.
+ *
+ * @param string $string
+ * @return string
+ * @access public
+ */
 function escapeSingleString( $string ) {
        return strtr( $string,
                array(