Function doc_keywords

perro_website/build.rs:420–452

(
    slug: &str,
    title: &str,
    area: &str,
    summary: &str,
    headings: &[HeadingOut],
)

    }
    Ok(())
}

fn push_doc(collection: &str, path: &Path, slug: String, out: &mut Vec<DocOut>) -> io::Result<()> {
    push_doc_with_link_slug(collection, path, slug.clone(), slug, out)
}

fn push_doc_with_link_slug(
    collection: &str,
    path: &Path,
    slug: String,
    link_slug: String,
    out: &mut Vec<DocOut>,
) -> io::Result<()> {
    let raw_markdown = fs::read_to_string(path)?;
    let markdown = rewrite_markdown_links(collection, &link_slug, &raw_markdown);
    let title = first_title(&markdown).unwrap_or_else(|| title_from_slug(&slug));
    let area = if collection == "book" {
        "book".to_string()
    } else {
        slug.split('/').next().unwrap_or("docs").to_string()
    };
    let is_history = is_history_page(collection, &slug);
    let nav_group = nav_group(collection, &slug, is_history).to_string();
    let route_path = route_path(collection, &slug);
    let summary = first_para(&markdown);
    let headings = headings(&markdown);
    let html = markdown_html(&markdown);
    let keywords = doc_keywords(&slug, &title, &area, &summary, &headings);
    let search_text = search_text(&slug, &title, &summary, &headings, &markdown);
    out.push(DocOut {
        collection: collection.to_string(),
        slug,
        route_path,
        title,
        area,
        nav_group,