'); define('DTB_MINIFY_COMMENT_JS', '//[^\n]*'); define('DTB_MINIFY_PATTERN_JS', '/[^\n]+?/[gimuy]*'); define('DTB_MINIFY_HTML', '<[!/]?[a-zA-Z\d:.-]+[\s\S]*?>'); define('DTB_MINIFY_HTML_ENT', '&(?:[a-zA-Z\d]+|\#\d+|\#x[a-fA-F\d]+);'); define('DTB_MINIFY_HTML_KEEP', ']*?)?>[\s\S]*?|]*?)?>[\s\S]*?|]*?)?>[\s\S]*?|]*?)?>[\s\S]*?|]*?)?>[\s\S]*?'); $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' ? 'https' : 'http') . '://'; $host = isset($_SERVER['HTTP_HOST']) ? sanitize_text_field( wp_unslash($_SERVER['HTTP_HOST']) ) : (isset($_SERVER['SERVER_NAME']) ? sanitize_text_field( wp_unslash($_SERVER['SERVER_NAME']) ) : ""); $url = $protocol . $host; define('X', "\x1A"); function n($s) { return str_replace(["\r\n", "\r"], "\n", $s); } function t($a, $b) { if ($a && strpos($a, $b) === 0 && substr($a, -strlen($b)) === $b) { return substr(substr($a, strlen($b)), 0, -strlen($b)); } return $a; } function fn_dtb_minify($pattern, $input) { return preg_split('#(' . implode('|', $pattern) . ')#', $input, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE); } function fn_dtb_minify_css($input, $comment = 2, $quote = 2) { if (!is_string($input) || !$input = n(trim($input))) return $input; $output = $prev = ""; foreach (fn_dtb_minify([DTB_MINIFY_COMMENT_CSS, DTB_MINIFY_STRING], $input) as $part) { if (trim($part) === "") continue; if ($comment !== 1 && strpos($part, '/*') === 0 && substr($part, -2) === '*/') { if ( $comment === 2 && ( strpos('*!', $part[2]) !== false || stripos($part, '@licence') !== false || // noun stripos($part, '@license') !== false || // verb stripos($part, '@preserve') !== false ) ) { $output .= $part; } continue; } if ($part[0] === '"' && substr($part, -1) === '"' || $part[0] === "'" && substr($part, -1) === "'") { $q = $part[0]; $clean = t($part, $q); // Trim quote(s) $ok = strcspn($clean, " \n\t\"'") === strlen($clean); if ( $quote !== 1 && ( substr($prev, -4) === 'url(' && preg_match('#\burl\($#', $prev) && $ok || substr($prev, -1) === '=' && preg_match('#^' . $q . '[a-zA-Z_][\w-]*?' . $q . '$#', $part) ) ) { $part = $clean; } $output .= $part; } else { $output .= fn_dtb_minify_css_union($part); } $prev = $part; } return trim($output); } function fn_dtb_minify_css_union($input) { if (stripos($input, 'calc(') !== false) { $input = preg_replace_callback('#\b(calc\()\s*(.*?)\s*\)#i', function($m) { return $m[1] . preg_replace('#\s+#', X, $m[2]) . ')'; }, $input); } $input = preg_replace([ '#(?<=[\w])\s+(\*|\[|:[\w-]+)#', '#([*\]\)])\s+(?=[\w\#.])#', '#\b\s+\(#', '#\)\s+\b#', '#\#([a-f\d])\1([a-f\d])\2([a-f\d])\3\b#i', '#\s*([~!@*\(\)+=\{\}\[\]:;,>\/])\s*#', '#\b(?') { $output .= $part; } continue; } if ($part[0] === '<' && substr($part, -1) === '>') { $output .= fn_dtb_minify_html_union($part, $quote); } else if ($part[0] === '&' && substr($part, -1) === ';' && $part !== '<' && $part !== '>' && $part !== '&') { $output .= html_entity_decode($part); } else { $output .= preg_replace('#\s+#', ' ', $part); } $prev = $part; } $output = str_replace(' |(\s[^<>]+?)\s*>)#', function($m) use($quote, $url) { if (isset($m[2])) { if (stripos($m[2], ' style=') !== false) { $m[2] = preg_replace_callback('#( style=)([\'"]?)(.*?)\2#i', function($m) { return $m[1] . $m[2] . fn_dtb_minify_css($m[3]) . $m[2]; }, $m[2]); } if (strpos($m[2], '://') !== false) { $m[2] = str_replace([ $url . '/', $url . '?', $url . '&', $url . '#', $url . '"', $url . "'" ], [ '/', '?', '&', '#', '/"', "/'" ], $m[2]); } $a = 'a(sync|uto(focus|play))|c(hecked|ontrols)|d(efer|isabled)|hidden|ismap|loop|multiple|open|re(adonly|quired)|s((cop|elect)ed|pellcheck)'; $a = '<' . $m[1] . preg_replace([ '#\s(' . $a . ')(?:=([\'"]?)(?:true|\1)?\2)#i', '#\s*([^\s=]+?)(=(?:\S+|([\'"]?).*?\3)|$)#', '#\s+\/$#' ], [ ' $1', ' $1$2', '/' ], str_replace("\n", ' ', $m[2])) . '>'; return $quote !== 1 ? fn_dtb_minify_html_union_attr($a) : $a; } return '<' . $m[1] . '>'; }, $input); } function fn_dtb_minify_html_union_attr($input) { if (strpos($input, '=') === false) return $input; return preg_replace_callback('#=(' . DTB_MINIFY_STRING . ')#', function($m) { $q = $m[1][0]; if (strpos($m[1], ' ') === false && preg_match('#^' . $q . '[a-zA-Z_][\w-]*?' . $q . '$#', $m[1])) { return '=' . t($m[1], $q); } return $m[0]; }, $input); } function fn_dtb_minify_js($input, $comment = 2, $quote = 2) { if (!is_string($input) || !$input = n(trim($input))) return $input; $output = $prev = ""; foreach (fn_dtb_minify([DTB_MINIFY_COMMENT_CSS, DTB_MINIFY_STRING, DTB_MINIFY_COMMENT_JS, DTB_MINIFY_PATTERN_JS], $input) as $part) { if (trim($part) === "") continue; if ($comment !== 1 && ( strpos($part, '//') === 0 || // Remove inline comment(s) strpos($part, '/*') === 0 && substr($part, -2) === '*/' )) { if ( $comment === 2 && ( strpos('*!', $part[2]) !== false || stripos($part, '@licence') !== false || // noun stripos($part, '@license') !== false || // verb stripos($part, '@preserve') !== false ) ) { $output .= $part; } continue; } if ($part[0] === '/' && (substr($part, -1) === '/' || preg_match('#\/[gimuy]*$#', $part))) { $output .= $part; } else if ( $part[0] === '"' && substr($part, -1) === '"' || $part[0] === "'" && substr($part, -1) === "'" || $part[0] === '`' && substr($part, -1) === '`' // ES6 ) { $output .= $part; } else { $output .= fn_dtb_minify_js_union($part); } $prev = $part; } return $output; } function fn_dtb_minify_js_union($input) { return preg_replace([ '#\s*([!%&*\(\)\-=+\[\]\{\}|;:,.<>?\/])\s*#', '#[;,]([\]\}])#', '#\btrue\b#', '#\bfalse\b#', '#\b(return\s?)\s*\b#', '#\b(?:new\s+)?Array\((.*?)\)#', '#\b(?:new\s+)?Object\((.*?)\)#' ], [ '$1', '$1', '!0', '!1', '$1', '[$1]', '{$1}' ], $input); } function minify_css($lot) { return fn_dtb_minify_css($lot); } function minify_html($lot) { return fn_dtb_minify_html($lot); } function minify_js($lot) { return fn_dtb_minify_js($lot); }