Support for empty Markdown code block (#30)

gucong3000 · Mar 14, 2018 · 22a34d0 · 22a34d0
1 parent 540ada3
commit 22a34d0
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Showing 2 changed files with 31 additions and 3 deletions.
diff --git a/lib/markdown-parser.js b/lib/markdown-parser.js
@@ -13,7 +13,7 @@ module.exports = function (source, opts) {
 	const blocks = findAllAfter(ast, 0, (node) => {
 		if (node.type === "code" && node.lang) {
 			isStructureMD = true;
-			return /^(?:(?:[ps]?c)|le|wx|sa?|sugar)ss$/i.test(node.lang);
+			return /^(?:(?:\w*c)|le|wx|sa?|sugar)ss$/i.test(node.lang);
 		}
 	});
 
@@ -22,7 +22,12 @@ module.exports = function (source, opts) {
 	}
 
 	return blocks.map((block) => {
-		const startIndex = source.indexOf(block.value, block.position.start.offset);
+		let startIndex = source.indexOf(block.lang, block.position.start.offset) + block.lang.length;
+		if (block.value) {
+			startIndex = source.indexOf(block.value, startIndex);
+		} else {
+			startIndex = source.indexOf("\n", startIndex) + 1;
+		}
 		const content = source.slice(startIndex, block.position.end.offset).replace(/[ \t]*`*$/, "");
 		return {
 			startIndex: startIndex,

diff --git a/test/markdown.js b/test/markdown.js
@@ -45,7 +45,30 @@ describe("markdown tests", () => {
 		});
 	});
 
-	it("Without code blocks", function () {
+	it("empty code block", () => {
+		const source = [
+			"hi",
+			"",
+			"```css",
+			"",
+			"```",
+			"",
+		].join("\n");
+		return postcss([
+			root => {
+				const css = root.nodes[0].source;
+				console.log(css);
+				expect(css.input.css).equal("\n");
+				expect(css.start.line).equal(4);
+				expect(css.start.column).equal(1);
+			},
+		]).process(source, {
+			syntax: syntax,
+			from: "empty_code_block.md",
+		});
+	});
+
+	it("without code blocks", function () {
 		return postcss([
 			root => {
 				expect(root.nodes).to.have.lengthOf(0);