Extract some features for the vc map. This are mainly used for the elements: "vc_link","font-size","google_fonts".

Extract_vc.php

/*
* VC Map Extract String
*/
if ( ! function_exists( 'fts_vc_map_extract_string' ) )
{
  function fts_vc_map_extract_string( $input )
  {
  	$font_elements = explode('|',$input);
  	$final_array =  array();
  	foreach ($font_elements as $font_element) {
  		if( ! empty($font_element)){
  			$new_array = explode(':',$font_element);
  			$final_array[$new_array[0]] = urldecode($new_array[1]);
  		}
  	}
  	return $final_array;
  }
}
/*
* VC Map Google Font Style Array
*/
if ( ! function_exists( 'fts_vc_map_google_font_style' ) )
{
  function fts_vc_map_google_font_style($google_final_array)
  {
  		//var_dump($google_final_array);
  	$font_family = explode(':',$google_final_array['font_family']);
  	$font_style = explode(':',$google_final_array['font_style']);
  	$font_style_final = explode(' ',$font_style[0]);
  	$font_style_final_check = ($font_style_final[1] == 'regular') ? 'normal' : $font_style_final[1];
  	return $font = 'font-family:'.$font_family[0].';font-weight:'.$font_style_final[0].';font-style:'.$font_style_final_check;
  }
}
/*
* VC Map Pixel Checking
*/
if ( ! function_exists( 'fts_vc_map_px_checking' ) )
{
  function fts_vc_map_px_checking($str)
  {
  	$pos = strrpos($str, "px");
  	if ($pos === false) {
  		return $str.'px';
  	}
  	else {
  		return $str;
  	}
  }
}