fix: spaces before code block

src/markdownHeaders.test.ts

@@ -65,3 +65,24 @@ test('headers after code highlighting', () => {
     slug: 'like-this',
   });
 });
+
+test('spaces before code block', () => {
+  const headers = markdownHeaders(
+    readFileSync('./test/86-spaces_before_code_block.md', 'utf-8'),
+  );
+  expect(headers.length).toBe(2);
+  expect(headers[0]).toEqual({
+    html: 'spaces before code blocks',
+    level: 1,
+    lineno: 0,
+    number: '1',
+    slug: 'spaces-before-code-blocks',
+  });
+  expect(headers[1]).toEqual({
+    html: 'Comment',
+    level: 1,
+    lineno: 13,
+    number: '2',
+    slug: 'comment',
+  });
+});

src/markdownHeaders.ts

@@ -7,11 +7,12 @@ const markdownit = require('markdown-it')({ html: true })
 function isHeader(line: string, context: any) {
   // check code block
   if (!line.match(/(?:```)(?:.+?)(?:```)/)) {
-    if (line.match(/(?:^```)/)) {
+    if (line.match(/(?:^\s{0,3}```)/)) {
       context.flagBlock = !context.flagBlock;
       return false;
     }
   }
+
   // check comment block
   if (line.match(/(?:<!--)/) && !line.match(/(?:-->)/)) {
     context.flagComment = true;
@@ -21,6 +22,7 @@ function isHeader(line: string, context: any) {
     context.flagComment = false;
     return false;
   }
+
   if (context.flagBlock || context.flagComment) return false;
 
   if (!line.match(/^ {0,3}#/)) return false;

test/86-spaces_before_code_block.md

@@ -0,0 +1,17 @@
+# spaces before code block
+
+ ```bash
+# Comment
+echo 1
+```
+
+   ```bash
+# Comment
+echo 1
+```
+
+    ```bash
+# Comment
+echo 1
+```
+