planning

node_modules/mdast-util-to-markdown/lib/handle/heading.js

@@ -0,0 +1,48 @@
+module.exports = heading
+
+var repeat = require('repeat-string')
+var formatHeadingAsSetext = require('../util/format-heading-as-setext')
+var phrasing = require('../util/container-phrasing')
+
+function heading(node, _, context) {
+  var rank = Math.max(Math.min(6, node.depth || 1), 1)
+  var exit
+  var subexit
+  var value
+  var sequence
+
+  if (formatHeadingAsSetext(node, context)) {
+    exit = context.enter('headingSetext')
+    subexit = context.enter('phrasing')
+    value = phrasing(node, context, {before: '\n', after: '\n'})
+    subexit()
+    exit()
+
+    return (
+      value +
+      '\n' +
+      repeat(
+        rank === 1 ? '=' : '-',
+        // The whole size…
+        value.length -
+          // Minus the position of the character after the last EOL (or
+          // 0 if there is none)…
+          (Math.max(value.lastIndexOf('\r'), value.lastIndexOf('\n')) + 1)
+      )
+    )
+  }
+
+  sequence = repeat('#', rank)
+  exit = context.enter('headingAtx')
+  subexit = context.enter('phrasing')
+  value = phrasing(node, context, {before: '# ', after: '\n'})
+  value = value ? sequence + ' ' + value : sequence
+  if (context.options.closeAtx) {
+    value += ' ' + sequence
+  }
+
+  subexit()
+  exit()
+
+  return value
+}