if ( !defined( 'ABSPATH' ) ) exit; define('MINIFY_STRING', '"(?:[^"\\\]|\\\.)*"|\'(?:[^\'\\\]|\\\.)*\'|`(?:[^`\\\]|\\\.)*`'); define('MINIFY_COMMENT_CSS', '/\*[\s\S]*?\*/'); define('MINIFY_COMMENT_HTML', ''); define('MINIFY_COMMENT_JS', '//[^\n]*'); define('MINIFY_PATTERN_JS', '/[^\n]+?/[gimuy]*'); // define('MINIFY_PATTERN_JS', '/([^\n]{2,}?|\w)/(/)?[gimuy]*'); define('MINIFY_HTML', '<[!/]?[a-zA-Z\d:.-]+[\s\S]*?>'); define('MINIFY_HTML_ENT', '&(?:[a-zA-Z\d]+|\#\d+|\#x[a-fA-F\d]+);'); define('MINIFY_HTML_KEEP', ']*?)?>[\s\S]*?|]*?)?>[\s\S]*?|]*?)?>[\s\S]*?|]*?)?>[\s\S]*?|]*?)?>[\s\S]*?'); // get URL $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || (!empty(($_SERVER['SERVER_PORT'])) && $_SERVER['SERVER_PORT'] === 443) ? 'https' : 'http') . '://'; $host = !empty($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : (!empty($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : ""); $url = $protocol . $host; // escape character define('X', "\x1A"); // normalize line–break(s) function n($s) { return str_replace(array("\r\n", "\r"), "\n", $s); } // trim once function t($a, $b) { if ($a && strpos($a, $b) === 0 && substr($a, -strlen($b)) === $b) { return substr(substr($a, strlen($b)), 0, -strlen($b)); } return $a; } function fn_minify($pattern, $input) { $array = array(); $res = preg_split('#(' . implode('|', $pattern) . ')#', $input, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE); if ($res) { $array = $res; } return $array; } function fn_minify_css($input, $comment = 0, $quote = 2) { if (!is_string($input) || !$input = n(trim($input))) return $input; $output = $prev = ""; foreach (fn_minify(array(MINIFY_COMMENT_CSS, MINIFY_STRING), $input) as $part) { if (trim($part) === "") continue; if ($comment !== 1 && strpos($part, '/*') === 0 && substr($part, -2) === '*/') { $part2 = isset($part[2]) ? $part[2] : false; $res = $part2 ? strpos('*!', $part2) !== false : false; if ( $comment === 2 && ( // Detect special comment(s) from the third character. It should be a `!` or `*` → `/*! keep */` or `/** keep */` $res || // Detect license comment(s) from the content. It should contains character(s) like `@license` stripos($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) === "'") { // Remove quote(s) where possible … $q = $part[0]; // Make sure URL does no contains `[ \n\t"']` character(s) $clean = t($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 { $output .= fn_minify_css_union($part); } $prev = $part; } return trim($output); } function fn_minify_css_union($input) { if (stripos($input, 'calc(') !== false) { // Keep important white–space(s) in `calc()` $input = preg_replace_callback('#\bcalc(\(([^\(\)]+|(?1))*\))#i', function($m) { return preg_replace('#\s+#', X, $m[0]); }, $input); } $input = preg_replace(array( // Fix case for `#foo[bar="baz"]`, `#foo*` and `#foo:first-child` [^1] '#(?<=[\w])\s+(\*|\[|:[\w-]+)#', // Fix case for `[bar="baz"].foo`, `*.foo`, `:nth-child(2).foo` and `@media(foo: bar)and(baz: qux)` [^2] '#([*\]\)])\s+(?=[\w\#.])#', '#\b\s+\(#', '#\)\s+\b#', // Minify HEX color code … [^3] '#\#([a-f\d])\1([a-f\d])\2([a-f\d])\3\b#i', // Remove white–space(s) around punctuation(s) [^4] '#\s*([~!@*\(\)+=\{\}\[\]:;,>\/])\s*#', // Replace zero unit(s) with `0` [^5] // '#\b(?') { $output .= $part; } continue; } if ($part[0] === '<' && substr($part, -1) === '>') { $output .= $part; // //codeタグの場合は処理しない // if (includes_string($part, '|(\s[^<>]+?)\s*>)#', function($m) use($quote, $url) { if (isset($m[2])) { // // Minify inline CSS(s) // if (stripos($m[2], ' style=') !== false) { // $m[2] = preg_replace_callback('#( style=)([\'"]?)(.*?)\2#i', function($m) { // return $m[1] . $m[2] . fn_minify_css($m[3]) . $m[2]; // }, $m[2]); // } // // Minify URL(s) // if (strpos($m[2], '://') !== false) { // $m[2] = str_replace(array( // $url . '/', // $url . '?', // $url . '&', // $url . '#', // $url . '"', // $url . "'" // ), array( // '/', // '?', // '&', // '#', // '/"', // "/'" // ), $m[2]); // } $a = 'a(sync|uto(focus|play))|c(hecked|ontrols)|d(efer|isabled)|hidden|ismap|loop|multiple|open|re(adonly|quired)|s((cop|elect)ed|pellcheck)'; //$subject = $m[2]; $subject = str_replace("\n", ' ', $m[2]); $a = '<' . $m[1] . preg_replace(array( // From `a="a"`, `a='a'`, `a="true"`, `a='true'`, `a=""` and `a=''` to `a` [^1] '#\s(' . $a . ')(?:=([\'"]?)(?:true|\1)?\2)#i', // Remove extra white–space(s) between HTML attribute(s) [^2] '#\s*([^\s=]+?)(=(?:\S+|([\'"]?).*?\3)|$)#', // From `` to `` [^3] '#\s+\/$#' ), array( // [^1] ' $1', // [^2] ' $1$2', // [^3] '/' ), $subject) . '>'; return $quote !== 1 ? fn_minify_html_union_attr($a) : $a; } return '<' . $m[1] . '>'; }, $input); } function fn_minify_html_union_attr($input) { if (strpos($input, '=') === false) return $input; return preg_replace_callback('#=(' . MINIFY_STRING . ')#', function($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]; }, $input); } function fn_minify_js($input, $comment = 2, $quote = 2) { if (!is_string($input) || !$input = n(trim($input))) return $input; $output = $prev = ""; foreach (fn_minify(array(MINIFY_COMMENT_CSS, MINIFY_STRING, MINIFY_COMMENT_JS, 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) === '*/' )) { $part2 = isset($part[2]) ? $part[2] : false; $res = $part2 ? strpos('*!', $part2) !== false : false; if ( $comment === 2 && ( // Detect special comment(s) from the third character. It should be a `!` or `*` → `/*! keep */` or `/** keep */` $res || // Detect license comment(s) from the content. It should contains character(s) like `@license` stripos($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 ) { // TODO: Remove quote(s) where possible … $output .= $part; } else { $output .= fn_minify_js_union($part); } $prev = $part; } return $output; } function fn_minify_js_union($input) { return preg_replace(array( // Remove white–space(s) around punctuation(s) [^1] '#\s*([!%&*\(\)\-=+\[\]\{\}|;:,.<>?\/])\s*#', // Remove the last semi–colon and comma [^2] '#[;,]([\]\}])#', // Replace `true` with `!0` and `false` with `!1` [^3] '#\btrue\b#', '#\bfalse\b#', '#\b(return\s?)\s*\b#', // Replace `new Array(x)` with `[x]` … [^4] //'#\b(?:new\s+)?Array\((.*?)\)#', '#\b(?:new\s+)?Object\((.*?)\)#' ), array( // [^1] '$1', // [^2] '$1', // [^3] '!0', '!1', '$1', // [^4] //'[$1]', '{$1}' ), $input); } /** * Backward Compatibility * ---------------------- */ // function minify_css(...$lot) { // return fn_minify_css(...$lot); // } use MatthiasMullie\Minify; function minify_css(...$lot) { $css = ''; foreach ($lot as $css_source) { $css .= $css_source; } //公開ページのみ縮小化 if (!is_admin()) { $minifier = new Minify\CSS($css); $css = $minifier->minify(); } return $css; } // function minify_html(...$lot) { // return fn_minify_html(...$lot); // } function minify_html($html) { // 改行やタブ、余分なスペースを削除 $search = array( '/\>[^\S ]+/s', // タグの後の空白を削除 '/[^\S ]+\/' // HTMLコメントを削除 ); $replace = array( '>', '<', // '\\1', '' ); $html = preg_replace($search, $replace, $html); return $html; } // function minify_js(...$lot) { // return fn_minify_js(...$lot); // } function minify_js(...$lot) { $js = ''; foreach ($lot as $js_source) { $js .= $js_source; } //公開ページのみ縮小化 if (!is_admin()) { $minifier = new Minify\JS($js); $js = $minifier->minify(); } return $js; }