65 function optimizeBackground(property) {  argument
66   var values = property.value;
77 function optimizeBorderRadius(property) {  argument
78   var values = property.value;
92     property.value.splice(spliceAt);
93     property.dirty = true;
168 function optimizeFilter(property) {  argument
169   if (property.value.length == 1) {
170 …property.value[0][1] = property.value[0][1].replace(/progid:DXImageTransform\.Microsoft\.(Alpha|Ch…
175   property.value[0][1] = property.value[0][1]
180 function optimizeFontWeight(property, atIndex) {  argument
181   var value = property.value[atIndex][1];
189   property.value[atIndex][1] = value;
192 function optimizeMultipleZeros(property) {  argument
193   var values = property.value;
197     if (property.name.indexOf('box-shadow') > -1) {
205     property.value.splice(spliceAt);
206     property.dirty = true;
210 function optimizeOutline(property) {  argument
211   var values = property.value;
387   var property, name, type, value;
394     property = _properties[i];
395     name = property.name;
398       propertyToken = property.all[property.position];
400       property.unused = true;
403     if (property.value.length === 0) {
404       propertyToken = property.all[property.position];
406       property.unused = true;
409     if (property.hack && (
410 …(property.hack[0] == Hack.ASTERISK || property.hack[0] == Hack.UNDERSCORE) && !options.compatibili…
411         property.hack[0] == Hack.BACKSLASH && !options.compatibility.properties.ieSuffixHack ||
412         property.hack[0] == Hack.BANG && !options.compatibility.properties.ieBangHack)) {
413       property.unused = true;
416 …) === 0 && (isNegative(property.value[0]) || isNegative(property.value[1]) || isNegative(property.…
417       property.unused = true;
420     if (!options.compatibility.properties.ieFilters && isLegacyFilter(property)) {
421       property.unused = true;
424     if (property.unused) {
428     if (property.block) {
429       optimizeBody(rule, property.value[0][1], context);
437     for (var j = 0, m = property.value.length; j < m; j++) {
438       type = property.value[j][0];
439       value = property.value[j][1];
443         property.unused = true;
449         property.unused = true;
450 …context.warnings.push('Broken URL \'' + value + '\' at ' + formatPosition(property.value[j][2][0])…
491         property.unused = true;
495       property.value[j][1] = value;
499       optimizeMultipleZeros(property);
503       optimizeBackground(property);
505       optimizeBorderRadius(property);
507       optimizeFilter(property);
509       optimizeFontWeight(property, 0);
511       optimizeOutline(property);
620 function isLegacyFilter(property) {  argument
623   if (property.name == 'filter' || property.name == '-ms-filter') {
624     value = property.value[0][1];