WORDPRESS: Shortcode cleanup function that converts hyphens into underscores

nt_cleanup_shortcode_atts.php

<?php
function nt_cleanup_shortcode_atts ($atts){
	$atts_new = array();
	foreach ($atts as $key => $value) {
		if(is_numeric($key) && substr_count($value, "=")){
			list($key,$value) = explode("=", $value);
			$atts_new[str_replace("-", "_", $key)] = $value;
		}
		$atts_new[$key] = $value;
	}
	return $atts_new;
}
add_shortcode('column', 'nt_column');
function nt_column($atts, $content = null)
{
	if($content == null) return '';


	$atts = shortcode_atts(array(
		'large' => '',
		'small' => '',
		'push' => '',
		'pull' => '',
		'large_centered' => false,
		'small_centered' => false,
		'large_offset' => '',
		'small_offset' => '',
		'class' => '',
		'style' => '',
		'p' => 'true',
	), nt_cleanup_shortcode_atts($atts));
	extract($atts);

	$content = parse_shortcode_content( $content );

	$out = '<div class="columns';
	if( $large || $small ){
		if($large)$out .= ' large-' . $large;
		if($small)$out .= ' small-' . $small;
	} else {
		if($small)$out .= ' small-12' . $small;
	}
	if($push)$out .= ' push-' . $push;
	if($pull)$out .= ' pull-' . $pull;
	if($large_centered)$out .= ' large-centered';
	if($small_centered)$out .= ' small-centered';
	if($large_offset)$out .= ' large-offset-' . $large_offset;
	if($small_offset)$out .= ' small-offset-' . $small_offset;
	if($class)$out .= ' ' . $class;
	$out .= '"';
	if($style)
		$out .= 'style="'. $style .'"';
	$out .= '>';
	if ( $p == 'false' ) $content = preg_replace('#<p>|</p>#', '', $content);
	$out .= $content;
	$out .= '</div>';

	return $out;
}
?>