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specificity.php
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<?php
$all = file_get_contents($argv[1]);
define('OUTPUT_JSON',(isset($argv[2]) && $argv[2] == '--output-json'));
define('OUTPUT_DATA',!OUTPUT_JSON);
// remove comments
// I kept finding a */.some-class in my testing
// credit to http://blog.ostermiller.org/find-comment
$all = preg_replace('/\/\*([^*]|[\r\n\s]|(\*+([^*\/]|[\r\n\s])))*\*+/ms', '', $all);
// turns out it's an actual typo in my test file
// weird shit related to filters ${iefactor} ???
$all = preg_replace('/\$\{.*?\}/ms', '', $all);
// remove @media
$all = preg_replace('/@media[^\{]*?\{/mis', '', $all);
$all = preg_replace('/\}\s*\}/ms', '}', $all);
// destroy all remaining at-rules which break everything
// nested such as @font-face and @keyframes
preg_match_all('/@(-[a-z]+?-)?([a-z-]+)\{(.*?)\}/mis', $all, $match, PREG_SET_ORDER);
foreach($match as $m) $all = str_replace($m[0],'',$all);
// and shit like @import and @charset
$all = preg_replace('/@[a-z0-9-_]+.*?;/ms','', $all);
// grab actual rules
preg_match_all('/([^\{]+?)\s*(\{.*?\})/mis',$all, $match,PREG_SET_ORDER);
// BEGIN DEFINITIONS
$pseudo_elements = [
'after',
'before',
'first-letter',
'first-line',
'selection',
'backdrop',
/** more standards coming soon maybe? realworldvalidator.com/css/pseudoelements*/
'alternate',
'content',
'cue',
'cue-region',
'line-marker',
'marker',
'outside',
/** some vendor-prefix from above source */
'-moz-focus-inner',
'-moz-focus-outer',
'-moz-list-bullet',
'-moz-list-number',
'-moz-placeholder',
'-moz-progress-bar',
'-moz-selection',
'-ms-backdrop',
'-ms-browse',
'-ms-check',
'-ms-clear',
'-ms-expand',
'-ms-fill',
'-ms-fill-lower',
'-ms-fill-upper',
'-ms-reveal',
'-ms-thumb',
'-ms-ticks-after',
'-ms-ticks-before',
'-ms-tooltip',
'-ms-track',
'-ms-value',
'-webkit-calendar-picker-indicator',
'-webkit-color-datetime-edit',
'-webkit-color-datetime-edit-day-field',
'-webkit-color-datetime-edit-fields-wrapper',
'-webkit-color-datetime-edit-month-field',
'-webkit-color-datetime-edit-text',
'-webkit-color-datetime-edit-year-field',
'-webkit-color-swatch',
'-webkit-color-swatch-wrapper',
'-webkit-file-upload-button',
'-webkit-inner-spin-button',
'-webkit-input-placeholder',
'-webkit-keygen-select',
'-webkit-meter-bar',
'-webkit-meter-even-less-good-value',
'-webkit-meter-optimum-value',
'-webkit-meter-suboptimal-value',
'-webkit-ouer-spin-button',
'-webkit-progress-bar',
'-webkit-progress-inner-element',
'-webkit-progress-value',
'-webkit-resizer',
'-webkit-scrollbar',
'-webkit-scrollbar-button',
'-webkit-scrollbar-corner',
'-webkit-scrollbar-thumb',
'-webkit-scrollbar-track',
'-webkit-scrollbar-track-piece',
'-webkit-search-cancel-button',
'-webkit-search-decoration',
'-webkit-search-results-button',
'-webkit-search-results-decoration',
'-webkit-slider-runnable-track',
'-webkit-slider-thumb',
'-webkit-textfield-decoration-container',
'-webkit-validation-bubble',
'-webkit-validation-bubble-arrow',
'-webkit-validation-bubble-arrow-clipper',
'-webkit-validation-bubble-heading',
'-webkit-validation-bubble-message',
'-webkit-validation-bubble-text-block',
/* g-giddy up https://gist.github.com/afabbro/3759334#gistcomment-716299 */
'-webkit-calendar-picker-indicator',
'-webkit-color-swatch',
'-webkit-color-swatch-wrapper',
'-webkit-details-marker',
'-webkit-file-upload-button',
'-webkit-image-inner-element',
'-webkit-inner-spin-button',
'-webkit-input-placeholder',
'-webkit-input-speech-button',
'-webkit-keygen-select',
'-webkit-media-controls-panel',
'-webkit-media-controls-timeline-container',
'-webkit-media-slider-container',
'-webkit-meter-bar',
'-webkit-meter-even-less-good-value',
'-webkit-meter-optimum-value',
'-webkit-meter-suboptimal-value',
'-webkit-progress-bar',
'-webkit-progress-value',
'-webkit-resizer',
'-webkit-resizer:window-inactive',
'-webkit-scrollbar',
'-webkit-scrollbar-button',
'-webkit-scrollbar-button:disabled',
'-webkit-scrollbar-button:double-button:horizontal:end:decrement',
'-webkit-scrollbar-button:double-button:horizontal:end:increment',
'-webkit-scrollbar-button:double-button:horizontal:end:increment:corner-present',
'-webkit-scrollbar-button:double-button:horizontal:start:decrement',
'-webkit-scrollbar-button:double-button:horizontal:start:increment',
'-webkit-scrollbar-button:double-button:vertical:end:decrement',
'-webkit-scrollbar-button:double-button:vertical:end:increment',
'-webkit-scrollbar-button:double-button:vertical:end:increment:corner-present',
'-webkit-scrollbar-button:double-button:vertical:start:decrement',
'-webkit-scrollbar-button:double-button:vertical:start:increment',
'-webkit-scrollbar-button:end',
'-webkit-scrollbar-button:end:decrement',
'-webkit-scrollbar-button:end:increment',
'-webkit-scrollbar-button:horizontal',
'-webkit-scrollbar-button:horizontal:decrement',
'-webkit-scrollbar-button:horizontal:decrement:active',
'-webkit-scrollbar-button:horizontal:decrement:hover',
'-webkit-scrollbar-button:horizontal:decrement:window-inactive',
'-webkit-scrollbar-button:horizontal:end',
'-webkit-scrollbar-button:horizontal:end:decrement',
'-webkit-scrollbar-button:horizontal:end:increment',
'-webkit-scrollbar-button:horizontal:end:increment:corner-present',
'-webkit-scrollbar-button:horizontal:increment',
'-webkit-scrollbar-button:horizontal:increment:active',
'-webkit-scrollbar-button:horizontal:increment:hover',
'-webkit-scrollbar-button:horizontal:increment:window-inactive',
'-webkit-scrollbar-button:horizontal:start',
'-webkit-scrollbar-button:horizontal:start:decrement',
'-webkit-scrollbar-button:horizontal:start:increment',
'-webkit-scrollbar-button:start',
'-webkit-scrollbar-button:start:decrement',
'-webkit-scrollbar-button:start:increment',
'-webkit-scrollbar-button:vertical',
'-webkit-scrollbar-button:vertical:decrement',
'-webkit-scrollbar-button:vertical:decrement:active',
'-webkit-scrollbar-button:vertical:decrement:hover',
'-webkit-scrollbar-button:vertical:decrement:window-inactive',
'-webkit-scrollbar-button:vertical:end',
'-webkit-scrollbar-button:vertical:end:decrement',
'-webkit-scrollbar-button:vertical:end:increment',
'-webkit-scrollbar-button:vertical:end:increment:corner-present',
'-webkit-scrollbar-button:vertical:increment',
'-webkit-scrollbar-button:vertical:increment:active',
'-webkit-scrollbar-button:vertical:increment:hover',
'-webkit-scrollbar-button:vertical:increment:window-inactive',
'-webkit-scrollbar-button:vertical:start',
'-webkit-scrollbar-button:vertical:start:decrement',
'-webkit-scrollbar-button:vertical:start:increment',
'-webkit-scrollbar-corner',
'-webkit-scrollbar-corner:window-inactive',
'-webkit-scrollbar-thumb',
'-webkit-scrollbar-thumb:horizontal',
'-webkit-scrollbar-thumb:horizontal:active',
'-webkit-scrollbar-thumb:horizontal:hover',
'-webkit-scrollbar-thumb:horizontal:window-inactive',
'-webkit-scrollbar-thumb:vertical',
'-webkit-scrollbar-thumb:vertical:active',
'-webkit-scrollbar-thumb:vertical:hover',
'-webkit-scrollbar-thumb:vertical:window-inactive',
'-webkit-scrollbar-track',
'-webkit-scrollbar-track-piece',
'-webkit-scrollbar-track-piece:disabled',
'-webkit-scrollbar-track-piece:end',
'-webkit-scrollbar-track-piece:horizontal:decrement',
'-webkit-scrollbar-track-piece:horizontal:decrement:active',
'-webkit-scrollbar-track-piece:horizontal:decrement:hover',
'-webkit-scrollbar-track-piece:horizontal:end',
'-webkit-scrollbar-track-piece:horizontal:end:corner-present',
'-webkit-scrollbar-track-piece:horizontal:end:double-button',
'-webkit-scrollbar-track-piece:horizontal:end:no-button',
'-webkit-scrollbar-track-piece:horizontal:end:no-button:corner-present',
'-webkit-scrollbar-track-piece:horizontal:end:single-button',
'-webkit-scrollbar-track-piece:horizontal:increment',
'-webkit-scrollbar-track-piece:horizontal:increment:active',
'-webkit-scrollbar-track-piece:horizontal:increment:hover',
'-webkit-scrollbar-track-piece:horizontal:start',
'-webkit-scrollbar-track-piece:horizontal:start:double-button',
'-webkit-scrollbar-track-piece:horizontal:start:no-button',
'-webkit-scrollbar-track-piece:horizontal:start:single-button',
'-webkit-scrollbar-track-piece:start',
'-webkit-scrollbar-track-piece:vertical:decrement',
'-webkit-scrollbar-track-piece:vertical:decrement:active',
'-webkit-scrollbar-track-piece:vertical:decrement:hover',
'-webkit-scrollbar-track-piece:vertical:end',
'-webkit-scrollbar-track-piece:vertical:end:corner-present',
'-webkit-scrollbar-track-piece:vertical:end:double-button',
'-webkit-scrollbar-track-piece:vertical:end:no-button',
'-webkit-scrollbar-track-piece:vertical:end:no-button:corner-present',
'-webkit-scrollbar-track-piece:vertical:end:single-button',
'-webkit-scrollbar-track-piece:vertical:increment',
'-webkit-scrollbar-track-piece:vertical:increment:active',
'-webkit-scrollbar-track-piece:vertical:increment:hover',
'-webkit-scrollbar-track-piece:vertical:start',
'-webkit-scrollbar-track-piece:vertical:start:double-button',
'-webkit-scrollbar-track-piece:vertical:start:no-button',
'-webkit-scrollbar-track-piece:vertical:start:single-button',
'-webkit-scrollbar-track:disabled',
'-webkit-scrollbar-track:horizontal',
'-webkit-scrollbar-track:horizontal:disabled',
'-webkit-scrollbar-track:horizontal:disabled:corner-present',
'-webkit-scrollbar-track:vertical:disabled',
'-webkit-scrollbar-track:vertical:disabled:corner-present',
'-webkit-scrollbar:horizontal',
'-webkit-scrollbar:horizontal:corner-present',
'-webkit-scrollbar:horizontal:window-inactive',
'-webkit-scrollbar:vertical',
'-webkit-scrollbar:vertical:corner-present',
'-webkit-scrollbar:vertical:window-inactive',
'-webkit-search-cancel-button',
'-webkit-search-decoration',
'-webkit-search-results-button',
'-webkit-search-results-decoration',
'-webkit-slider-container',
'-webkit-slider-runnable-track',
'-webkit-slider-thumb',
'-webkit-slider-thumb:disabled',
'-webkit-slider-thumb:hover',
'-webkit-textfield-decoration-container',
'-webkit-validation-bubble',
'-webkit-validation-bubble-arrow',
'-webkit-validation-bubble-arrow-clipper',
'-webkit-validation-bubble-heading',
'-webkit-validation-bubble-message',
'-webkit-validation-bubble-text-block',
'-moz-anonymous-block',
'-moz-anonymous-positioned-block',
/** y-you too https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Mozilla_Extensions **/
'-moz-canvas',
'-moz-cell-content',
'-moz-focus-inner',
'-moz-focus-outer',
'-moz-inline-table',
'-moz-viewport',
'-moz-viewport-scroll',
'-moz-xul-anonymous-block'
];
// Probably some duplicates in this list.
# idgaf
// END DEFINITIONS
$out = [];
$pos = 1;
foreach($match as $m) {
$selectors_list = explode(',', trim($m[1]));
if(OUTPUT_JSON) {
$important = preg_match_all('/!important/i', $m[2]);
}
foreach($selectors_list as $selector) {
// NOTE: sometimes there's random junk at the start of the selectors and I don't know why fgsfds
$selector = trim(preg_replace('/^[^a-z0-9-_\[\*\#\+~\>\:\.\s]+/mis', '', $selector));
if($selector == "")
continue;
$a = $b = $c = 0;
$original_selector = $selector;
/** NOTE: attribute selectors can contain quoted strings which can fuck this all up
* e.g. a[href^="#"] triggers the dumb ID check below.
* so lets just get rid of them first. */
// attributes
$at = 0;
if(strpos($selector,'[') !== false) {
$at = preg_match_all('/\[.*?\]/ms', $selector,$match);
foreach($match as $m) $selector = str_replace($m[0],'',$selector);
}
// ids
$id = 0;
$id_pos = -1;
while(($id_pos = strpos($selector,'#',$id_pos+1)) !== false) $id++;
// classes
$cl = 0;
$cl_pos = -1;
while(($cl_pos = strpos($selector,'.',$cl_pos+1)) !== false) $cl++;
// pseudo
$ps_cl = 0;
$ps_el = 0;
$ps_pos = 0;
$pseudoers = $selector;
while(strlen($pseudoers)) {
if(preg_match('/:{1,2}([a-z0-9-]+)/ims', $pseudoers, $n)) {
$pseudo = $n[1];
/**
* Selectors inside the negation pseudo-class are counted like any other,
* but the negation itself does not count as a pseudo-class.
*/
if($pseudo != 'not') {
if(in_array($pseudo,$pseudo_elements))
$ps_el++;
else
$ps_cl++;
// see below note on $pseudo_classes
}
$pseudoers = str_replace($n[0],'',$pseudoers);
} else {
break;
}
}
// elements
$el = 0;
$elements = trim(preg_replace('/(\*|\>|~|\+)|((#|\.)[a-z0-9-_]+)|(\[.*?\])|(:{1,2}([a-z0-9-]+(\(.*?\))?))/ims', ' ', $selector));
$el = $elements == "" ? 0 : count(preg_split('/\s+/m',$elements));
/**
* 9. Calculating a selector's specificity
*
* A selector's specificity is calculated as follows:
*
* count the number of ID selectors in the selector (= a)
* count the number of class selectors, attributes selectors, and pseudo-classes in the selector (= b)
* count the number of type selectors and pseudo-elements in the selector (= c)
* ignore the universal selector
*
*/
$a = $id;
$b = $cl + $at + $ps_cl;
$c = $el + $ps_el;
/*
* Concatenating the three numbers a-b-c (in a number system with a large base) gives the specificity.
*/
$base36_a = base_convert($a, 10, 36);
$base36_b = base_convert($b, 10, 36);
$base36_c = base_convert($c, 10, 36);
$base36 = $base36_a.$base36_b.$base36_c;
$base10 = base_convert($base36, 36, 10);
if(OUTPUT_JSON) {
$out[] = [
'selector' => preg_replace('/\s+/',' ',trim($original_selector)),
'specificity' => [
'base36' => $base36,
'base10' => $base10,
'tuple' => [0,$a,$b,$c]
],
'position' => $pos,
'important' => $important
// 'elements-debug' => $elements,
// 'a-b-c-debug'=>[$a,$b,$c]
];
} else {
$out[] = "$pos $base10";
}
}
$pos++; // increment here, not per comma-separated-value
}
echo OUTPUT_JSON ? json_encode($out, JSON_PRETTY_PRINT) : implode("\n", $out);
exit(0);
/**
* also from https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Mozilla_Extensions
* but unused because this is taking too long already and I can probably
* assume if it's not in the above list of pseudo element that it's a pseudo class
*/
$pseudo_classes = [
'-moz-any',
'-moz-any-link',
'-moz-bound-element',
'-moz-broken',
'-moz-drag-over',
'-moz-first-node',
'-moz-focusring',
'-moz-full-screen',
'-moz-full-screen-ancestor',
'-moz-handler-blocked',
'-moz-handler-crashed',
'-moz-handler-disabled',
'-moz-last-node',
'-moz-list-bullet',
'-moz-list-number',
'-moz-loading',
'-moz-locale-dir(ltr)',
'-moz-locale-dir(rtl)',
'-moz-lwtheme',
'-moz-lwtheme-brighttext',
'-moz-lwtheme-darktext',
'-moz-native-anonymous Requires Gecko 36',
'-moz-only-whitespace',
'-moz-placeholder',
'-moz-read-only',
'-moz-read-write',
'-moz-suppressed',
'-moz-submit-invalid',
'-moz-system-metric(images-in-menus)',
'-moz-system-metric(mac-graphite-theme)',
'-moz-system-metric(scrollbar-end-backward)',
'-moz-system-metric(scrollbar-end-forward)',
'-moz-system-metric(scrollbar-start-backward)',
'-moz-system-metric(scrollbar-start-forward)',
'-moz-system-metric(scrollbar-thumb-proportional)',
'-moz-system-metric(touch-enabled)',
'-moz-system-metric(windows-default-theme)',
'-moz-tree-checkbox',
'-moz-tree-cell',
'-moz-tree-cell-text',
'-moz-tree-cell-text(hover)',
'-moz-tree-column',
'-moz-tree-drop-feedback',
'-moz-tree-image',
'-moz-tree-indentation',
'-moz-tree-line',
'-moz-tree-progressmeter',
'-moz-tree-row',
'-moz-tree-row(hover)',
'-moz-tree-separator',
'-moz-tree-twisty',
'-moz-ui-invalid',
'-moz-ui-valid',
'-moz-user-disabled',
'-moz-window-inactive'
];