planning

node_modules/micromark/dist/tokenize/thematic-break.js

@@ -0,0 +1,53 @@
+'use strict'
+
+var markdownLineEnding = require('../character/markdown-line-ending.js')
+var markdownSpace = require('../character/markdown-space.js')
+var factorySpace = require('./factory-space.js')
+
+var thematicBreak = {
+  name: 'thematicBreak',
+  tokenize: tokenizeThematicBreak
+}
+
+function tokenizeThematicBreak(effects, ok, nok) {
+  var size = 0
+  var marker
+  return start
+
+  function start(code) {
+    effects.enter('thematicBreak')
+    marker = code
+    return atBreak(code)
+  }
+
+  function atBreak(code) {
+    if (code === marker) {
+      effects.enter('thematicBreakSequence')
+      return sequence(code)
+    }
+
+    if (markdownSpace(code)) {
+      return factorySpace(effects, atBreak, 'whitespace')(code)
+    }
+
+    if (size < 3 || (code !== null && !markdownLineEnding(code))) {
+      return nok(code)
+    }
+
+    effects.exit('thematicBreak')
+    return ok(code)
+  }
+
+  function sequence(code) {
+    if (code === marker) {
+      effects.consume(code)
+      size++
+      return sequence
+    }
+
+    effects.exit('thematicBreakSequence')
+    return atBreak(code)
+  }
+}
+
+module.exports = thematicBreak