fix support for stylelint (#45)

Author: gucong3000

lib/parser.js

@@ -6,18 +6,25 @@ const docFixer = require("./parse-style");
 const htmlParser = require("./html-parser");
 
 function parser (source, opts) {
+	function filenameMatch (reg) {
+		return opts.from && reg.test(opts.from);
+	}
 	// Skip known style sheet and script files.
-	if (opts.from && /\.(?:(?:\w*c|wx|le|sa|s)ss|styl(?:us)?|m?[jt]sx?|es\d*|pac)(?:\?.*)?$/i.test(opts.from)) {
+	if (filenameMatch(/\.(?:(?:\w*c|wx|le|sa|s)ss|styl(?:us)?|m?[jt]sx?|es\d*|pac)(?:\?.*)?$/i)) {
 		return;
 	}
 
 	source = source && source.toString();
 
 	const styleHtm = htmlParser(source, opts);
+	if (!styleHtm && !filenameMatch(/\.(?:[sx]?html?|[sx]ht|vue|ux|php)(?:\?.*)?$/i)) {
+		return;
+	}
 	const document = new Document();
-	const parseStyle = docFixer(source, opts);
+
 	let index = 0;
 	if (styleHtm) {
+		const parseStyle = docFixer(source, opts);
 		styleHtm.sort((a, b) => {
 			return a.startIndex - b.startIndex;
 		}).forEach(style => {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "postcss-html",
-  "version": "0.20.0",
+  "version": "0.20.1",
   "description": "PostCSS syntax for parsing HTML (and HTML-like)",
   "main": "lib/index.js",
   "scripts": {

test/html.js

@@ -420,7 +420,8 @@ describe("html tests", () => {
 				from: undefined,
 			}
 		).then(result => {
-			expect(result.root.nodes).to.have.lengthOf(0);
+			expect(result.root.nodes).to.have.lengthOf(1);
+			expect(result.root.nodes[0]).to.have.property("type").to.equal("comment");
 		});
 	});
 });