WIP - add extractor, generate snippet_data

node_modules/remark-parse/lib/tokenize/heading-setext.js

@@ -0,0 +1,102 @@
+'use strict'
+
+module.exports = setextHeading
+
+var lineFeed = '\n'
+var tab = '\t'
+var space = ' '
+var equalsTo = '='
+var dash = '-'
+
+var maxIndent = 3
+
+var equalsToDepth = 1
+var dashDepth = 2
+
+function setextHeading(eat, value, silent) {
+  var self = this
+  var now = eat.now()
+  var length = value.length
+  var index = -1
+  var subvalue = ''
+  var content
+  var queue
+  var character
+  var marker
+  var depth
+
+  // Eat initial indentation.
+  while (++index < length) {
+    character = value.charAt(index)
+
+    if (character !== space || index >= maxIndent) {
+      index--
+      break
+    }
+
+    subvalue += character
+  }
+
+  // Eat content.
+  content = ''
+  queue = ''
+
+  while (++index < length) {
+    character = value.charAt(index)
+
+    if (character === lineFeed) {
+      index--
+      break
+    }
+
+    if (character === space || character === tab) {
+      queue += character
+    } else {
+      content += queue + character
+      queue = ''
+    }
+  }
+
+  now.column += subvalue.length
+  now.offset += subvalue.length
+  subvalue += content + queue
+
+  // Ensure the content is followed by a newline and a valid marker.
+  character = value.charAt(++index)
+  marker = value.charAt(++index)
+
+  if (character !== lineFeed || (marker !== equalsTo && marker !== dash)) {
+    return
+  }
+
+  subvalue += character
+
+  // Eat Setext-line.
+  queue = marker
+  depth = marker === equalsTo ? equalsToDepth : dashDepth
+
+  while (++index < length) {
+    character = value.charAt(index)
+
+    if (character !== marker) {
+      if (character !== lineFeed) {
+        return
+      }
+
+      index--
+      break
+    }
+
+    queue += character
+  }
+
+  if (silent) {
+    return true
+  }
+
+  return eat(subvalue + queue)({
+    type: 'heading',
+    depth: depth,
+    children: self.tokenizeInline(content, now)
+  })
+}