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rOACCT/node_modules/clean-css/lib/reader/extract-import-url-and-media.js
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extract-import-url-and-media.js
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			var split = require('../utils/split');

			var BRACE_PREFIX = /^\(/;
			var BRACE_SUFFIX = /\)$/;
			var IMPORT_PREFIX_PATTERN = /^@import/i;
			var QUOTE_PREFIX_PATTERN = /['"]\s{0,31}/;
			var QUOTE_SUFFIX_PATTERN = /\s{0,31}['"]/;
			var URL_PREFIX_PATTERN = /^url\(\s{0,31}/i;
			var URL_SUFFIX_PATTERN = /\s{0,31}\)/i;

			function extractImportUrlAndMedia(atRuleValue) {
			var uri;
			var mediaQuery;
			var stripped;
			var parts;

			stripped = atRuleValue
			.replace(IMPORT_PREFIX_PATTERN, '')
			.trim()
			.replace(URL_PREFIX_PATTERN, '(')
			.replace(URL_SUFFIX_PATTERN, ')')
			.replace(QUOTE_PREFIX_PATTERN, '')
			.replace(QUOTE_SUFFIX_PATTERN, '');

			parts = split(stripped, ' ');

			uri = parts[0]
			.replace(BRACE_PREFIX, '')
			.replace(BRACE_SUFFIX, '');
			mediaQuery = parts.slice(1).join(' ');

			return [uri, mediaQuery];
			}

			module.exports = extractImportUrlAndMedia;