planning

node_modules/remark-stringify/lib/visitors/list-item.js

@@ -0,0 +1,75 @@
+'use strict'
+
+var repeat = require('repeat-string')
+var pad = require('../util/pad')
+
+module.exports = listItem
+
+var lineFeed = '\n'
+var space = ' '
+var leftSquareBracket = '['
+var rightSquareBracket = ']'
+var lowercaseX = 'x'
+
+var ceil = Math.ceil
+var blank = lineFeed + lineFeed
+
+var tabSize = 4
+
+// Stringify a list item.
+//
+// Prefixes the content with a checked checkbox when `checked: true`:
+//
+// ```markdown
+// [x] foo
+// ```
+//
+// Prefixes the content with an unchecked checkbox when `checked: false`:
+//
+// ```markdown
+// [ ] foo
+// ```
+function listItem(node, parent, position, bullet) {
+  var self = this
+  var style = self.options.listItemIndent
+  var marker = bullet || self.options.bullet
+  var spread = node.spread == null ? true : node.spread
+  var checked = node.checked
+  var children = node.children
+  var length = children.length
+  var values = []
+  var index = -1
+  var value
+  var indent
+  var spacing
+
+  while (++index < length) {
+    values[index] = self.visit(children[index], node)
+  }
+
+  value = values.join(spread ? blank : lineFeed)
+
+  if (typeof checked === 'boolean') {
+    // Note: I’d like to be able to only add the space between the check and
+    // the value, but unfortunately github does not support empty list-items
+    // with a checkbox :(
+    value =
+      leftSquareBracket +
+      (checked ? lowercaseX : space) +
+      rightSquareBracket +
+      space +
+      value
+  }
+
+  if (style === '1' || (style === 'mixed' && value.indexOf(lineFeed) === -1)) {
+    indent = marker.length + 1
+    spacing = space
+  } else {
+    indent = ceil((marker.length + 1) / tabSize) * tabSize
+    spacing = repeat(space, indent - marker.length)
+  }
+
+  return value
+    ? marker + spacing + pad(value, indent / tabSize).slice(indent)
+    : marker
+}