feat: add support for link attribute

Author: Xenira

lib/index.js

@@ -311,7 +311,9 @@ function hardbreak (str, mark, force, len = str.length) {
 }
 
 function image (_, target, attrlist, _idx, _str, alt = attrlist.split(',')[0] || /(.*\/)?(.*?)($|\.)/.exec(target)[2]) {
-  return '![' + alt + '](' + (this.get('imagesdir') ? this.get('imagesdir') + '/' : '') + target + ')'
+  const link = attrlist.split(',').map((it) => /link="{0,1}(.+?)"{0,1}$/.exec(it)?.[1]).find((it) => it)
+  const image = '![' + alt + '](' + (this.get('imagesdir') ? this.get('imagesdir') + '/' : '') + target + ')'
+  return link ? '[' + image + '](' + link + ')' : image
 }
 
 function isAnyListItem (chr0, str, mode = 'test', match = chr0 in LIST_MARKERS && ListItemRx[mode](str)) {

test/downdoc-test.js

@@ -4311,6 +4311,22 @@ describe('downdoc()', () => {
       `
       expect(downdoc(input)).to.equal(expected)
     })
+
+    it('should wrap image in link if link attribute is set', () => {
+      const input = heredoc`
+      = Title
+
+      image::images/screenshot.png[Screenshot,link=https://example.com]
+      image::images/screenshot.png[Screenshot,link="https://example.com"]
+      `
+      const expected = heredoc`
+      # Title
+
+      [![Screenshot](images/screenshot.png)](https://example.com)
+      [![Screenshot](images/screenshot.png)](https://example.com)
+      `
+      expect(downdoc(input)).to.equal(expected)
+    })
   })
 
   describe('blockquotes', () => {