feat: check anchor links

Issue #91

Author: tcort

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changes
 
+## Version 3.10.0
+
+* #91 check anchor links.
+
 ## Version 3.9.3
 
 * #184 fix issue with config loading.  (@kenji-miyake)

index.js

@@ -60,7 +60,7 @@ module.exports = function markdownLinkCheck(markdown, opts, callback) {
         }, markdown);
     }
 
-    const { links } = markdownLinkExtractor(markdown);
+    const { links, anchors } = markdownLinkExtractor(markdown);
     const linksCollection = _.uniq(links);
     const bar = (opts.showProgressBar) ?
         new ProgressBar('Checking... [:bar] :percent', {
@@ -70,6 +70,8 @@ module.exports = function markdownLinkCheck(markdown, opts, callback) {
             total: linksCollection.length
         }) : undefined;
 
+    opts.anchors = anchors;
+
     async.mapLimit(linksCollection, 2, function (link, callback) {
         if (opts.ignorePatterns) {
             const shouldIgnore = opts.ignorePatterns.some(function(ignorePattern) {

package-lock.json

@@ -36,7 +36,7 @@
     "async": "^3.2.3",
     "chalk": "^4.1.2",
     "commander": "^6.2.0",
-    "link-check": "^5.0.3",
+    "link-check": "^5.1.0",
     "lodash": "^4.17.21",
     "markdown-link-extractor": "^2.0.1",
     "needle": "^3.0.0",

package.json

@@ -0,0 +1,15 @@
+# Foo
+
+This is a test.
+
+## Bar
+
+The title is [Foo](#foo).
+
+## Baz
+
+The second section is [Bar](#bar).
+
+## Uh, oh
+
+There is no section named [Potato](#potato).

test/hash-links.md

@@ -339,4 +339,15 @@ describe('markdown-link-check', function () {
             done();
         });
     });
+    it('check hash links', function (done) {
+        markdownLinkCheck(fs.readFileSync(path.join(__dirname, 'hash-links.md')).toString(), {}, function (err, result) {
+            expect(err).to.be(null);
+            expect(result).to.eql([
+                { link: '#foo', statusCode: 200, err: null, status: 'alive' },
+                { link: '#bar', statusCode: 200, err: null, status: 'alive' },
+                { link: '#potato', statusCode: 404, err: null, status: 'dead' },
+            ]);
+            done();
+        });
+    });
 });