Init

Author: s0ph1e

.gitignore

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+node_modules
+npm-debug.log

.travis.yml

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+language: node_js
+node_js:
+  - "0.12"
+  - "0.11"
+  - "0.10"
+  - "iojs"
+  - "iojs-v1.0.4"

index.js

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+var parseCssUrls = require('./lib/css-parser');
+module.exports = parseCssUrls;

lib/css-parser.js

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+var _ = require('lodash');
+
+var embeddedRegexp = /data:(.*?);base64,/;
+var commentRegexp = /\/\*([\s\S]*?)\*\//g;
+var urlsRegexp = /((?:@import\s+)?url\s*\(['"]?)(\S*?)(['"]?\s*\))|(@import\s+['"]?)([^;'"]+)/ig;
+
+function isEmbedded (src) {
+	return embeddedRegexp.test(src);
+}
+
+function getUrls (text) {
+	var urls = [];
+	var urlMatch;
+
+	text = text.replace(commentRegexp, '');
+
+	while (urlMatch = urlsRegexp.exec(text)) {
+		// Match 2 group if '[@import] url(path)', match 5 group if '@import path'
+		urls.push(urlMatch[2]||urlMatch[5]);
+	}
+
+	return _.chain(urls)
+		.compact()
+		.reject(isEmbedded)
+		.uniq()
+		.value();
+}
+
+module.exports = getUrls;

package.json

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+{
+  "name": "css-url-parser",
+  "version": "0.1.0",
+  "description": "Parses urls from css file",
+  "main": "index.js",
+  "directories": {
+    "test": "test"
+  },
+  "scripts": {
+    "test": "istanbul cover ./node_modules/mocha/bin/_mocha --report lcovonly -- -R spec && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage"
+  },
+  "keywords": [
+    "parser",
+    "css",
+    "url"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/s0ph1e/node-css-url-parser.git"
+  },
+  "bugs": {
+    "url": "https://github.com/s0ph1e/node-css-url-parser/issues"
+  },
+  "homepage": "https://github.com/s0ph1e/node-css-url-parser",
+  "author": "s0ph1e",
+  "license": "MIT",
+  "dependencies": {
+    "lodash": "^3.7.0"
+  },
+  "devDependencies": {
+    "should": "^6.0.1",
+    "mocha": "^2.2.4",
+    "coveralls": "^2.11.2",
+    "istanbul": "^0.3.7"
+  }
+}

test/css-parser-test.js

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+var parseCssUrls = require('../index');
+
+var should = require('should')
+	describe('Parse css urls', function(){
+		it('should return array of entries from url(...), @import url(...) and @import ...', function(){
+			var text = '\
+				@import url("a.css");                  \
+				@import url(\'b.css\') tv;             \
+				@import url(c.css);                    \
+				@import "d.css" screen;                \
+				@import \'e.css\';                     \
+				@import f.css;                         \
+				.image {                               \
+					background-image: url ("g.css");   \
+					background-image: url (\'h.css\'); \
+					background-image: url (i.css);	   \
+				}                                      \
+			';
+
+			var urls = parseCssUrls(text);
+			urls.should.be.instanceof(Array).and.have.lengthOf(9);
+			urls.should.containEql('a.css');
+			urls.should.containEql('b.css');
+			urls.should.containEql('c.css');
+			urls.should.containEql('d.css');
+			urls.should.containEql('e.css');
+			urls.should.containEql('f.css');
+			urls.should.containEql('g.css');
+			urls.should.containEql('h.css');
+			urls.should.containEql('i.css');
+		});
+
+		it('should exclude duplicated urls', function(){
+			var text = '\
+				@import url("a.css");                \
+				@import a.css;                       \
+				.image { background: url("a.css"); } \
+			';
+
+			var urls = parseCssUrls(text);
+			urls.should.be.instanceof(Array).and.have.lengthOf(1);
+			urls.should.containEql('a.css');
+		});
+
+		it('should ignore base64 encoded urls', function(){
+			var text = '\
+				div.image { \
+					background-image: url(\'data:image/png;base64,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\'); \
+				}           \
+			';
+
+			var urls = parseCssUrls(text);
+			urls.should.be.empty;
+		});
+	});