Merge pull request #862 from notriddle/notriddle/indent-relativity

Check indentation on the closing fence relative to the line

pulldown-cmark/specs/regression.txt

@@ -2525,3 +2525,20 @@ title
 junk</p>
 </blockquote>
 ````````````````````````````````
+
+ISSUE 861
+
+```````````````````````````````` example
+ ~~~
+    ~~~
+.
+<pre><code>   ~~~
+</code></pre>
+````````````````````````````````
+
+```````````````````````````````` example
+ ~~~
+   ~~~
+.
+<pre><code></code></pre>
+````````````````````````````````

pulldown-cmark/src/firstpass.rs

@@ -1148,7 +1148,7 @@ impl<'a, 'b> FirstPass<'a, 'b> {
             }
             line_start.scan_space(indent);
             let mut close_line_start = line_start.clone();
-            if !close_line_start.scan_space(4) {
+            if !close_line_start.scan_space(4 - indent) {
                 let close_ix = ix + close_line_start.bytes_scanned();
                 if let Some(n) = scan_closing_code_fence(&bytes[close_ix..], fence_ch, n_fence_char)
                 {

pulldown-cmark/tests/suite/regression.rs

@@ -3016,3 +3016,26 @@ junk</p>
 
     test_markdown_html(original, expected, false, false, false);
 }
+
+#[test]
+fn regression_test_191() {
+    let original = r##" ~~~
+    ~~~
+"##;
+    let expected = r##"<pre><code>   ~~~
+</code></pre>
+"##;
+
+    test_markdown_html(original, expected, false, false, false);
+}
+
+#[test]
+fn regression_test_192() {
+    let original = r##" ~~~
+   ~~~
+"##;
+    let expected = r##"<pre><code></code></pre>
+"##;
+
+    test_markdown_html(original, expected, false, false, false);
+}