[PEAR-BUG] Req #18687 [Opn]: support RFC5952 compatible format

Edit report at http://pear.php.net/bugs/bug.php?id=18687&edit=1

 ID:               18687
 Updated by:       [email protected]
 Reported By:      koyama at hoge dot org
 Summary:          support RFC5952 compatible format
 Status:           Open
 Type:             Feature/Change Request
 Package:          Net_IPv6
 Operating System: CentOS
 Package Version:  1.2.1
 PHP Version:      5.3.6
-Assigned To:      
+Assigned To:      alexmerz
 Roadmap Versions: 
 New Comment:

-Assigned To:
+Assigned To: alexmerz



Previous Comments:
------------------------------------------------------------------------

[2011-07-26 13:58:28] koyama

Uploading a patch is not working. paste here.

--- IPv6.php    2011-07-26 20:38:19.000000000 +0900
+++ IPv6.php.new        2011-07-26 20:37:46.000000000 +0900
@@ -748,6 +748,32 @@
     }
 
     // }}}
+    // {{{ recommendedFormat()
+    /**
+     * represent IPv6 address in RFC5952 format.
+     *
+     * @param String  $ip a valid IPv6-adress (hex format)
+     *
+     * @return String the recommended representation of IPv6-adress
(hex format)
+     * @access public
+     * @see    compress()
+     * @static
+     * @author koyama at hoge dot org
+     */
+    function recommendedFormat($ip)
+    {
+        $compressed = self::compress($ip, true);
+        // RFC5952 4.2.2
+        // The symbol "::" MUST NOT be used to shorten just one
+        // 16-bit 0 field.
+        if ((substr_count($compressed, ':') == 7) &&
+            (strpos($compressed, '::') !== false)) {
+            $compressed = str_replace('::', ':0:', $compressed);
+        }
+        return $compressed;
+    }
+
+    // }}}
     // {{{ isCompressible()
 
     /**

------------------------------------------------------------------------

[2011-07-26 13:55:17] koyama

Description:
------------
The new RFC5952, has established a recommended text representation of
IPv6 address. The compress () output will conform to it almost a little
different.

In RFC5952 4.2.2, "The symbol "::" MUST NOT be used to shorten just one
16-bit 0 field." I wrote new method for it.

------------------------------------------------------------------------


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Edit this bug report at http://pear.php.net/bugs/bug.php?id=18687&edit=1