Merge pull request #488 from bdjnk/remove-tags-from-toc

prevent html tags from appearing in the toc

components/rendering/src/markdown.rs

@@ -77,16 +77,11 @@ pub fn markdown_to_html(content: &str, context: &RenderContext) -> Result<Render
                     // Header first
                     if in_header {
                         if header_created {
-                            temp_header.push(&text);
+                            temp_header.add_text(&text);
                             return Event::Html(Borrowed(""));
                         }
-                        let id = find_anchor(&anchors, slugify(&text), 0);
-                        anchors.push(id.clone());
-                        // update the header and add it to the list
-                        temp_header.permalink = format!("{}#{}", context.current_page_permalink, id);
-                        temp_header.id = id;
                         // += as we might have some <code> or other things already there
-                        temp_header.title += &text;
+                        temp_header.add_text(&text);
                         header_created = true;
                         return Event::Html(Borrowed(""));
                     }
@@ -182,7 +177,7 @@ pub fn markdown_to_html(content: &str, context: &RenderContext) -> Result<Render
                         } else {
                             format!("<a href=\"{}\" title=\"{}\">", fixed_link, title)
                         };
-                        temp_header.push(&html);
+                        temp_header.add_html(&html);
                         return Event::Html(Borrowed(""));
                     }
 
@@ -190,21 +185,21 @@ pub fn markdown_to_html(content: &str, context: &RenderContext) -> Result<Render
                 }
                 Event::End(Tag::Link(_, _)) => {
                     if in_header {
-                        temp_header.push("</a>");
+                        temp_header.add_html("</a>");
                         return Event::Html(Borrowed(""));
                     }
                     event
                 }
                 Event::Start(Tag::Code) => {
                     if in_header {
-                        temp_header.push("<code>");
+                        temp_header.add_html("<code>");
                         return Event::Html(Borrowed(""));
                     }
                     event
                 }
                 Event::End(Tag::Code) => {
                     if in_header {
-                        temp_header.push("</code>");
+                        temp_header.add_html("</code>");
                         return Event::Html(Borrowed(""));
                     }
                     event
@@ -215,8 +210,13 @@ pub fn markdown_to_html(content: &str, context: &RenderContext) -> Result<Render
                     Event::Html(Borrowed(""))
                 }
                 Event::End(Tag::Header(_)) => {
-                    // End of a header, reset all the things and return the stringified
-                    // version of the header
+                    // End of a header, reset all the things and return the header string
+
+                    let id = find_anchor(&anchors, slugify(&temp_header.title), 0);
+                    anchors.push(id.clone());
+                    temp_header.permalink = format!("{}#{}", context.current_page_permalink, id);
+                    temp_header.id = id;
+
                     in_header = false;
                     header_created = false;
                     let val = temp_header.to_string(context.tera, context.insert_anchor);

components/rendering/src/table_of_contents.rs

@@ -31,6 +31,7 @@ pub struct TempHeader {
     pub id: String,
     pub permalink: String,
     pub title: String,
+    pub html: String,
 }
 
 impl TempHeader {
@@ -40,10 +41,16 @@ impl TempHeader {
             id: String::new(),
             permalink: String::new(),
             title: String::new(),
+            html: String::new(),
         }
     }
 
-    pub fn push(&mut self, val: &str) {
+    pub fn add_html(&mut self, val: &str) {
+        self.html += val;
+    }
+
+    pub fn add_text(&mut self, val: &str) {
+        self.html += val;
         self.title += val;
     }
 
@@ -58,9 +65,9 @@ impl TempHeader {
         };
 
         match insert_anchor {
-            InsertAnchor::None => format!("<h{lvl} id=\"{id}\">{t}</h{lvl}>\n", lvl = self.level, t = self.title, id = self.id),
-            InsertAnchor::Left => format!("<h{lvl} id=\"{id}\">{a}{t}</h{lvl}>\n", lvl = self.level, a = anchor_link, t = self.title, id = self.id),
-            InsertAnchor::Right => format!("<h{lvl} id=\"{id}\">{t}{a}</h{lvl}>\n", lvl = self.level, a = anchor_link, t = self.title, id = self.id),
+            InsertAnchor::None => format!("<h{lvl} id=\"{id}\">{t}</h{lvl}>\n", lvl = self.level, t = self.html, id = self.id),
+            InsertAnchor::Left => format!("<h{lvl} id=\"{id}\">{a}{t}</h{lvl}>\n", lvl = self.level, a = anchor_link, t = self.html, id = self.id),
+            InsertAnchor::Right => format!("<h{lvl} id=\"{id}\">{t}{a}</h{lvl}>\n", lvl = self.level, a = anchor_link, t = self.html, id = self.id),
         }
     }
 }

components/rendering/tests/markdown.rs

@@ -427,6 +427,38 @@ fn can_make_toc() {
     assert_eq!(toc[0].children[1].children.len(), 1);
 }
 
+#[test]
+fn can_ignore_tags_in_toc() {
+    let permalinks_ctx = HashMap::new();
+    let config = Config::default();
+    let context = RenderContext::new(
+        &GUTENBERG_TERA,
+        &config,
+        "https://mysite.com/something",
+        &permalinks_ctx,
+        InsertAnchor::Left,
+    );
+
+    let res = render_content(r#"
+## header with `code`
+
+## [anchor](https://duckduckgo.com/) in header
+
+## **bold** and *italics*
+    "#, &context).unwrap();
+
+    let toc = res.toc;
+
+    assert_eq!(toc[0].id, "header-with-code");
+    assert_eq!(toc[0].title, "header with code");
+
+    assert_eq!(toc[1].id, "anchor-in-header");
+    assert_eq!(toc[1].title, "anchor in header");
+
+    assert_eq!(toc[2].id, "bold-and-italics");
+    assert_eq!(toc[2].title, "bold and italics");
+}
+
 #[test]
 fn can_understand_backtick_in_titles() {
     let permalinks_ctx = HashMap::new();