Upgrade anchor-markdown-header to fix emoji-titled headers (thloren…

…z#232)

* Add test for emoji-titled headers

This provides an example of the problem described in thlorenz#191.

* Upgrade `anchor-markdown-header` to fix emoji-titled headers

Fixes thlorenz#191

package.json

@@ -17,7 +17,7 @@
   "bin": "doctoc.js",
   "dependencies": {
     "@textlint/markdown-to-ast": "^12.1.1",
-    "anchor-markdown-header": "^0.5.7",
+    "anchor-markdown-header": "^0.6.0",
     "htmlparser2": "^7.2.0",
     "minimist": "^1.2.6",
     "underscore": "^1.13.2",

test/fixtures/readme-emoji-headers.md

@@ -0,0 +1,20 @@
+README to test doctoc with emoji-first headers
+
+<!-- START doctoc -->
+<!-- END doctoc -->
+
+# 🔴 or 🟡 - At Risk
+
+# 🔄 Still Need Updates
+
+## ⏱ Past-Due Items
+
+# ➡ ETA Changes This Week
+
+# 🚀 Shipped this week
+
+# 🛠 Availability repair items
+
+# 🎟 Support Tickets
+
+# 🔬 Team-by-team Breakdown: Hello

test/transform-weird-headers.js

@@ -38,3 +38,25 @@ test('\nnameless table headers', function (t) {
   t.end()
 })
 
+test('\nemoji-first header names', function (t) {
+  var content = require('fs').readFileSync(__dirname + '/fixtures/readme-emoji-headers.md', 'utf8');
+  var headers = transform(content);
+
+  t.same(
+      headers.toc.split('\n')
+    , [ '',
+        '- [🔴 or 🟡 - At Risk](#-or----at-risk)',
+        '- [🔄 Still Need Updates](#-still-need-updates)',
+        '  - [⏱ Past-Due Items](#-past-due-items)',
+        '- [➡ ETA Changes This Week](#-eta-changes-this-week)',
+        '- [🚀 Shipped this week](#-shipped-this-week)',
+        '- [🛠 Availability repair items](#-availability-repair-items)',
+        '- [🎟 Support Tickets](#-support-tickets)',
+        '- [🔬 Team-by-team Breakdown: Hello](#-team-by-team-breakdown-hello)',
+        '' ]
+    , 'generates a correct toc when readme has emojis as the first character for headings'
+  )
+
+  t.end()
+})
+