NebulaPanel - Control Interface

✏️ Editing: we-minify-html.php

<?php

if ( !defined( 'ABSPATH' ) ) exit;

// HTML Minifier

function we_minify_html() {

ob_start('we_minify_html_output');
}
function we_minify_end() {
	
		ob_end_flush();
}

if( !is_admin() ) {
	if ( !( defined( 'WP_CLI' ) && WP_CLI ) )
	{
		add_action('init', 'we_minify_html', 1);
		add_action('shutdown', 'we_minify_end');
	}
}

function we_minify_html_output($insert) {
	
	// Minify HTML
	
	 $insert = preg_replace_callback('#<([^\/\s<>!]+)(?:\s+([^<>]*?)\s*|\s*)(\/?)>#s', function($matches) {
            return '<' . $matches[1] . preg_replace('#([^\s=]+)(\=([\'"]?)(.*?)\3)?(\s+|$)#s', ' $1$2', $matches[2]) . $matches[3] . '>';
        }, str_replace("\r", "", $insert));

$insert = preg_replace(
            array(
                // t = text
                // o = tag open
                // c = tag close
                // Keep important white-space(s) after self-closing HTML tag(s)
                '#<(img|insert)(>| .*?>)#s',
                // Remove a line break and two or more white-space(s) between tag(s)
                '#()|(>)(?:\n*|\s{2,})(<)|^\s*|\s*$#s',
                '#()|(?<!\>)\s+(<\/.*?>)|(<[^\/]*?>)\s+(?!\<)#s', // t+c || o+t
                '#()|(<[^\/]*?>)\s+(<[^\/]*?>)|(<\/.*?>)\s+(<\/.*?>)#s', // o+o || c+c
                '#()|(<\/.*?>)\s+(\s)(?!\<)|(?<!\>)\s+(\s)(<[^\/]*?\/?>)|(<[^\/]*?\/?>)\s+(\s)(?!\<)#s', // c+t || t+o || o+t -- separated by long white-space(s)
                '#()|(<[^\/]*?>)\s+(<\/.*?>)#s', // empty tag
                '#<(img|insert)(>| .*?>)<\/\1>#s', // reset previous fix
                '#(&nbsp;)&nbsp;(?![<\s])#', // clean up ...
                '#(?<=\>)(&nbsp;)(?=\<)#', // --ibid
                // Remove HTML comment(s) except IE comment(s)
                '#\s*).)*-->\s*|(?<!\>)\n+(?=\<[^!])#s'
            ),
            array(
                '<$1$2</$1>',
                '$1$2$3',
                '$1$2$3',
                '$1$2$3$4$5',
                '$1$2$3$4$5$6$7',
                '$1$2$3',
                '<$1$2',
                '$1 ',
                '$1',
                ""
            ),
        $insert);
		
		
		// Minify CSS

if(strpos($insert, ' style=') !== false) {
            $insert = preg_replace_callback('#<([^<]+?)\s+style=([\'"])(.*?)\2(?=[\/\s>])#s', function($matches) {
                return '<' . $matches[1] . ' style=' . $matches[2] . inline_esteem_minify_css($matches[3]) . $matches[2];
            }, $insert);
        }
        if(strpos($insert, '</style>') !== false) {
          $insert = preg_replace_callback('#<style(.*?)>(.*?)</style>#is', function($matches) {
            return '<style' . $matches[1] .'>'. inline_esteem_minify_css($matches[2]) . '</style>';
          }, $insert);
        }

// Minify Javascript
				
		
        if(strpos($insert, '</script>') !== false) {
          	$insert = preg_replace_callback('#<script(.*?)>(.*?)</script>#is', function($matches) {
            	return '<script' . $matches[1] .'>'. inline_esteem_minify_js($matches[2]) . '</script>';
          	}, $insert);
        }

return ($insert);
}

// CSS Minifier 
function inline_esteem_minify_css($insert) {
    if(trim($insert) === "") return $insert;
    return preg_replace(
        array(
            // Remove comment(s)
            '#("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\')|\/\*(?!\!)(?>.*?\*\/)|^\s*|\s*$#s',
            // Remove unused white-space(s)
            '#("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\'|\/\*(?>.*?\*\/))|\s*+;\s*+(})\s*+|\s*+([*$~^|]?+=|[{};,>~+]|\s*+-(?![0-9\.])|!important\b)\s*+|([[(:])\s++|\s++([])])|\s++(:)\s*+(?!(?>[^{}"\']++|"(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\')*+{)|^\s++|\s++\z|(\s)\s+#si',
            // Replace `0(cm|em|ex|in|mm|pc|pt|px|vh|vw|%)` with `0`
            '#(?<=[\s:])(0)(cm|em|ex|in|mm|pc|pt|px|vh|vw|%)#si',
            // Replace `:0 0 0 0` with `:0`
            '#:(0\s+0|0\s+0\s+0\s+0)(?=[;\}]|\!important)#i',
            // Replace `background-position:0` with `background-position:0 0`
            '#(background-position):0(?=[;\}])#si',
            // Replace `0.6` with `.6`, but only when preceded by `:`, `,`, `-` or a white-space
            '#(?<=[\s:,\-])0+\.(\d+)#s',
            // Minify string value
            '#(\/\*(?>.*?\*\/))|(?<!content\:)([\'"])([a-z_][a-z0-9\-_]*?)\2(?=[\s\{\}\];,])#si',
            '#(\/\*(?>.*?\*\/))|(\burl$)([\'"])([^\s]+?)\3($)#si',
            // Minify HEX color code
            '#(?<=[\s:,\-]\#)([a-f0-6]+)\1([a-f0-6]+)\2([a-f0-6]+)\3#i',
            // Replace `(border|outline):none` with `(border|outline):0`
            '#(?<=[\{;])(border|outline):none(?=[;\}\!])#',
            // Remove empty selector(s)
            '#(\/\*(?>.*?\*\/))|(^|[\{\}])(?:[^\s\{\}]+)\{\}#s'
        ),
        array(
            '$1',
            '$1$2$3$4$5$6$7',
            '$1',
            ':0',
            '$1:0 0',
            '.$1',
            '$1$3',
            '$1$2$4$5',
            '$1$2$3',
            '$1:0',
            '$1$2'
        ),
    $insert);
}

// JavaScript Minifier
function inline_esteem_minify_js($insert) {
    if(trim($insert) === "") return $insert;
    return preg_replace(
        array(
            // Remove comment(s)
            '#\s*("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\')\s*|\s*\/\*(?!\!|@cc_on)(?>[\s\S]*?\*\/)\s*|\s*(?<![\:\=])\/\/.*(?=[\n\r]|$)|^\s*|\s*$#',
            // Remove white-space(s) outside the string and regex
            '#("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\'|\/\*(?>.*?\*\/)|\/(?!\/)[^\n\r]*?\/(?=[\s.,;]|[gimuy]|$))|\s*([!%&*\-=+\[\]\{\}|;:,.<>?\/])\s*#s',
            // Remove the last semicolon
            '#;+\}#',
            // Minify object attribute(s) except JSON attribute(s). From `{'foo':'bar'}` to `{foo:'bar'}`
            '#([\{,])([\'])(\d+|[a-z_][a-z0-9_]*)\2(?=\:)#i',
            // --ibid. From `foo['bar']` to `foo.bar`
            '#([a-z0-9_\)\]])\[([\'"])([a-z_][a-z0-9_]*)\2\]#i'
        ),
        array(
            '$1',
            '$1$2',
            '}',
            '$1$3',
            '$1.$3'
        ),
    $insert);

}
?>

✏️ Editing: we-minify-html.php

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