How to create permalink with monthname instead of using monthnum?

I want to redirect my blog articles like this,

http://www.example.com/blog/2014/september/03/post-name

But in wordpress it only allows me to use month number,

http://www.example.com/blog/2014/09/03/post-name.

I'm searching for this but not found anything useful. Some unanswered posts and they are not even saying, whether It is possible or not. Even in the wordpress documents there is no reference for this. I found the following code but it changes the url but not linking the post page.

<?php
/**
* Plugin Name: Month Name
* Description: Enables the <code>%monthcode%</code> and <code>%monthname%</code> tag for Permalinks.
* Author: Roger Chen
* License: GPLv2
*/

/**
* Enables use of monthname (january, june) and monthcode (jan, jun).
* Supports permalinks in the form of /2016-nov/61742/..slug.. or /2016-november/61742/..slug..
*/
class MonthName {

/**
 * Month Names
 */
public static $monthnames = array(
    'january',
    'february',
    'march',
    'april',
    'may',
    'june',
    'july',
    'august',
    'september',
    'october',
    'november',
    'december',
);

/**
 * Month Codes
 */
public static $monthcodes = array(
    'jan',
    'feb',
    'mar',
    'apr',
    'may',
    'jun',
    'jul',
    'aug',
    'sep',
    'oct',
    'nov',
    'dec',
);

/**
 * Registers all required hooks
 */
public static function init() {
    add_rewrite_tag( '%monthname%', '(' . implode('|', self::$monthnames) . ')' );
    add_rewrite_tag( '%monthcode%', '(' . implode('|', self::$monthcodes) . ')' );
    add_rewrite_rule(
        '^([0-9]{4})-(' . implode( '|', self::$monthnames ) . ')/([0-9]+)/?',
        'index.php?p=$matches[3]',
        'top'
    );
    add_rewrite_rule(
        '^([0-9]{4})-(' . implode( '|', self::$monthcodes ) . ')/([0-9]+)/?',
        'index.php?p=$matches[3]',
        'top'
    );
}
/**
 * Filters the month name and month code tags
 */
public static function filter_post_link( $permalink, $post ) {
    if ( false === strpos( $permalink, '%monthname%' ) && false === strpos( $permalink, '%monthcode%' ) ) {
        return $permalink;
    }

    try {
        $monthindex = intval(get_post_time( 'n', "GMT" == false, $post->ID ));

        $monthname = self::$monthnames[$monthindex - 1];
        $monthcode = self::$monthcodes[$monthindex - 1];

        $permalink = str_replace( '%monthname%', $monthname, $permalink );
        $permalink = str_replace( '%monthcode%', $monthcode, $permalink );

        return $permalink;
    } catch (Exception $e) {
        return $permalink;
    }
}

}

add_action( 'init', array( 'MonthName', 'init' ) );
add_filter( 'post_link', array( 'MonthName', 'filter_post_link' ), 10, 2 );

Somebody please say whether it is possible or not. If possible means, can you please say a way to sort out this issue.

Ok, here's the code. It currently support permalinks of the following format /2014/nov/23/post-name or /2014/november/23/post-name

<?php
/**
* Plugin Name: Month Name Permalink
* Description: Enables use of <code>%monthcode%</code> or <code>%monthname%</code> tags in permalinks to generate a structure like <code>/2014/nov/23/post-name</code> or <code>/2014/november/23/post-name</code>
* Author: Anand Shah
* License: GPLv2
*/

/**
 * Based on the original code by Roger Chen (https://gist.github.com/rogerhub/8306875)
 * Plugin enables use of monthname (january, june) and monthcode (jan, jun) in permalinks
 * Supports permalinks in the form of /2014/nov/23/post-name or /2014/november/23/post-name
*/

class Month_Name_Permalink {

/**
 * Month Names
 */
public static $monthnames = array(
    'january',
    'february',
    'march',
    'april',
    'may',
    'june',
    'july',
    'august',
    'september',
    'october',
    'november',
    'december',
);

/**
 * Month Codes
 */
public static $monthcodes = array(
    'jan',
    'feb',
    'mar',
    'apr',
    'may',
    'jun',
    'jul',
    'aug',
    'sep',
    'oct',
    'nov',
    'dec',
);

/**
 * Registers all required hooks
 */
public static function init() {
    add_rewrite_tag( '%monthname%', '(' . implode('|', self::$monthnames) . ')' );
    add_rewrite_tag( '%monthcode%', '(' . implode('|', self::$monthcodes) . ')' );
    add_rewrite_rule(
        '^([0-9]{4})/(' . implode( '|', self::$monthnames ) . ')/([0-9]{1,2})/(.*)?',
        'index.php?name=$matches[4]',
        'top'
    );
    add_rewrite_rule(
        '^([0-9]{4})/(' . implode( '|', self::$monthcodes ) . ')/([0-9]{1,2})/(.*)?',
        'index.php?name=$matches[4]',
        'top'
    );       

}
/**
 * Filters the month name and month code tags
 */
public static function filter_post_link( $permalink, $post ) {
    if ( false === strpos( $permalink, '%monthname%' ) && false === strpos( $permalink, '%monthcode%' ) ) {
        return $permalink;
    }

    try {
        $monthindex = intval(get_post_time( 'n', "GMT" == false, $post->ID ));

        $monthname = self::$monthnames[$monthindex - 1];
        $monthcode = self::$monthcodes[$monthindex - 1];

        $permalink = str_replace( '%monthname%', $monthname, $permalink );
        $permalink = str_replace( '%monthcode%', $monthcode, $permalink );

        return $permalink;
    } catch (Exception $e) {
        return $permalink;
    }
}

}

add_action( 'init', array( 'Month_Name_Permalink', 'init' ) );
add_filter( 'post_link', array( 'Month_Name_Permalink', 'filter_post_link' ), 10, 2 );