Support WAI-ARIA's role="presentation" inside of WikiText.

[lhc/web/wiklou.git] / includes / Collation.php

diff --git a/includes/Collation.php b/includes/Collation.php
index 7879ebe..301904e 100644 (file)
--- a/includes/Collation.php
+++ b/includes/Collation.php
@@ -408,4 +408,39 @@ class IcuCollation extends Collation {
        static function getICUVersion() {
                return defined( 'INTL_ICU_VERSION' ) ? INTL_ICU_VERSION : false;
        }
+
+       /**
+        * Return the version of Unicode appropriate for the version of ICU library
+        * currently in use, or false when it can't be determined.
+        *
+        * @since 1.21
+        * @return string|false
+        */
+       static function getUnicodeVersionForICU() {
+               $icuVersion = IcuCollation::getICUVersion();
+               if ( !$icuVersion ) {
+                       return false;
+               }
+
+               $versionPrefix = substr( $icuVersion, 0, 3 );
+               // Source: http://site.icu-project.org/download
+               $map = array(
+                       '50.' => '6.2',
+                       '49.' => '6.1',
+                       '4.8' => '6.0',
+                       '4.6' => '6.0',
+                       '4.4' => '5.2',
+                       '4.2' => '5.1',
+                       '4.0' => '5.1',
+                       '3.8' => '5.0',
+                       '3.6' => '5.0',
+                       '3.4' => '4.1',
+               );
+
+               if ( isset( $map[$versionPrefix] ) ) {
+                       return $map[$versionPrefix];
+               } else {
+                       return false;
+               }
+       }
 }