Broke the header link wrapping out into smaller functions
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@ -87,7 +87,7 @@ impl HtmlHandlebars {
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Ok(())
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}
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/// Create an index.html from the first element in SUMMARY.md
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/// Create an index.html from the first element in SUMMARY.md
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fn render_index(&self, book: &MDBook, ch: &Chapter, destination: &Path) -> Result<(), Box<Error>> {
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debug!("[*]: index.html");
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@ -399,59 +399,73 @@ fn build_header_links(html: String, filename: &str) -> String {
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regex
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.replace_all(&html, |caps: &Captures| {
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let level = &caps[1];
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let text = &caps[2];
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let mut id = text.to_string();
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let repl_sub = vec![
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"<em>",
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"</em>",
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"<code>",
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"</code>",
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"<strong>",
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"</strong>",
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"<",
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">",
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"&",
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"'",
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""",
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];
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for sub in repl_sub {
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id = id.replace(sub, "");
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}
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let id = id.chars()
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.filter_map(|c| if c.is_alphanumeric() || c == '-' || c == '_' {
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if c.is_ascii() {
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Some(c.to_ascii_lowercase())
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} else {
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Some(c)
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}
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} else if c.is_whitespace() && c.is_ascii() {
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Some('-')
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} else {
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None
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})
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.collect::<String>();
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let level = caps[1].parse().expect(
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"Regex should ensure we only ever get numbers here",
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);
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let id_count = *id_counter.get(&id).unwrap_or(&0);
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id_counter.insert(id.clone(), id_count + 1);
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let id = if id_count > 0 {
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format!("{}-{}", id, id_count)
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} else {
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id
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};
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format!(
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"<a class=\"header\" href=\"{filename}#{id}\" id=\"{id}\"><h{level}>{text}</h{level}></a>",
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level = level,
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id = id,
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text = text,
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filename = filename
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)
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wrap_header_with_link(level, &caps[2], &mut id_counter, filename)
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})
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.into_owned()
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}
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fn wrap_header_with_link(level: usize, content: &str, id_counter: &mut HashMap<String, usize>, filename: &str)
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-> String {
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let id = id_from_content(content);
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let id_count = *id_counter.get(&id).unwrap_or(&0);
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id_counter.insert(id.clone(), id_count + 1);
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let id = if id_count > 0 {
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format!("{}-{}", id, id_count)
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} else {
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id
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};
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format!(
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r#"<a class="header" href="{filename}#{id}" id="{id}"><h{level}>{text}</h{level}></a>"#,
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level = level,
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id = id,
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text = content,
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filename = filename
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)
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}
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fn id_from_content(content: &str) -> String {
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let mut content = content.to_string();
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// Skip any tags or html-encoded stuff
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let repl_sub = vec![
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"<em>",
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"</em>",
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"<code>",
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"</code>",
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"<strong>",
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"</strong>",
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"<",
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">",
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"&",
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"'",
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""",
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];
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for sub in repl_sub {
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content = content.replace(sub, "");
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}
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content.chars()
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.filter_map(|c| if c.is_alphanumeric() || c == '-' || c == '_' {
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if c.is_ascii() {
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Some(c.to_ascii_lowercase())
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} else {
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Some(c)
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}
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} else if c.is_whitespace() && c.is_ascii() {
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Some('-')
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} else {
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None
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})
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.collect()
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}
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// anchors to the same page (href="#anchor") do not work because of
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// <base href="../"> pointing to the root folder. This function *fixes*
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// that in a very inelegant way
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