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rOACCT/node_modules/clean-css/lib/optimizer/restore-from-optimizing.js
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restore-from-optimizing.js
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			var Hack = require('./hack');

			var Marker = require('../tokenizer/marker');

			var ASTERISK_HACK = '*';
			var BACKSLASH_HACK = '\\';
			var IMPORTANT_TOKEN = '!important';
			var UNDERSCORE_HACK = '_';
			var BANG_HACK = '!ie';

			function restoreFromOptimizing(properties, restoreCallback) {
			var property;
			var restored;
			var current;
			var i;

			for (i = properties.length - 1; i >= 0; i--) {
			property = properties[i];

			if (property.dynamic && property.important) {
			restoreImportant(property);
			continue;
			}

			if (property.dynamic) {
			continue;
			}

			if (property.unused) {
			continue;
			}

			if (!property.dirty && !property.important && !property.hack) {
			continue;
			}

			if (property.optimizable && restoreCallback) {
			restored = restoreCallback(property);
			property.value = restored;
			} else {
			restored = property.value;
			}

			if (property.important) {
			restoreImportant(property);
			}

			if (property.hack) {
			restoreHack(property);
			}

			if ('all' in property) {
			current = property.all[property.position];
			current[1][1] = property.name;

			current.splice(2, current.length - 1);
			Array.prototype.push.apply(current, restored);
			}
			}
			}

			function restoreImportant(property) {
			property.value[property.value.length - 1][1] += IMPORTANT_TOKEN;
			}

			function restoreHack(property) {
			if (property.hack[0] == Hack.UNDERSCORE) {
			property.name = UNDERSCORE_HACK + property.name;
			} else if (property.hack[0] == Hack.ASTERISK) {
			property.name = ASTERISK_HACK + property.name;
			} else if (property.hack[0] == Hack.BACKSLASH) {
			property.value[property.value.length - 1][1] += BACKSLASH_HACK + property.hack[1];
			} else if (property.hack[0] == Hack.BANG) {
			property.value[property.value.length - 1][1] += Marker.SPACE + BANG_HACK;
			}
			}

			module.exports = restoreFromOptimizing;