feat(cover-page): add support for subtitle and revision infos

.gitignore

@@ -5,3 +5,4 @@ node_modules/
 !/test/fixtures/*docinfo*-pdf.html
 /test/output/visual-comparison-workdir/
 build
+.idea/

lib/document/document-converter.js

@@ -486,9 +486,19 @@ ${faDom.css()}
     if (node.getDocumentTitle()) {
       const doc = node.getDocument()
       if (this.hasTitlePage(doc)) {
+        const docTitle = node.getDocument().getDocumentTitle({ partition: true })
+        const title = docTitle.hasSubtitle() ? `<h1>${docTitle.getMain()}</h1><h2>${docTitle.getSubtitle()}</h2>` : `<h1>${docTitle.getCombined()}</h1>`
+        const formattedAuthors = `${this.formatAuthorsInfos(node.getDocument().getAuthors())}`
+        const formattedRevisionInfos = this.formatRevisionInfos(node.getDocument())
+        let titlePageContent = `${title}`
+        if (formattedAuthors || formattedAuthors) {
+          titlePageContent += `<div class="cover-details">
+  ${formattedAuthors}
+  ${formattedRevisionInfos}
+</div>`
+        }
         return `<div id="cover" class="title-page front-matter">
-  <h1>${node.getDocumentTitle()}</h1>
-  <h2>${node.getDocument().getAuthor()}</h2>
+    ${titlePageContent}
 </div>`
       }
       return `<div class="title-document">
@@ -498,6 +508,34 @@ ${faDom.css()}
     return ''
   }
 
+  /**
+   * returns a string that contains the formatted authors infos
+   * @param {Asciidoctor.Document.Author[]} authors
+   * @return {string}
+   */
+  formatAuthorsInfos (authors) {
+    return authors.map((author, index) => {
+      if (author.getEmail()) return `<span class="author">${author.getName()} &lt<a class="email" href="mailto:${author.getEmail()}">${author.getEmail()}</a>&gt</span>`
+      else return `<span class="author">${author.getName()}</span>`
+    }).reduce((previousValue, currentValue) => previousValue.concat(`\r\n${currentValue}`), '')
+  }
+
+  /**
+   * returns a string that contains the formatted revision infos
+   * @param {Asciidoctor.Document} document
+   * @return {string}
+   */
+  formatRevisionInfos (document) {
+    let res = ''
+    if (document.getRevisionNumber() || document.getRevisionDate()) {
+      res += '<span class="revinfos">'
+      if (document.getRevisionNumber()) res += `\r\n<span id="revnumber">Version ${document.getRevisionNumber()}</span>`
+      if (document.getRevisionDate()) res += `\r\n<span id="revdate">${document.getRevisionDate()}</span>`
+      res += '</span>'
+    }
+    return res
+  }
+
   /**
    * Generate an (hidden) outline otherwise Chrome won't generate "Dests" fields and we won't be able to generate a PDF outline.
    */