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: / var / canvas / node_modules / mdast-util-to-hast / lib /

Filename : revert.js

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'use strict'

module.exports = revert

var u = require('unist-builder')
var all = require('./all')

// Return the content of a reference without definition as Markdown.
function revert(h, node) {
  var subtype = node.referenceType
  var suffix = ']'
  var contents
  var head
  var tail

  if (subtype === 'collapsed') {
    suffix += '[]'
  } else if (subtype === 'full') {
    suffix += '[' + (node.label || node.identifier) + ']'
  }

  if (node.type === 'imageReference') {
    return u('text', '![' + node.alt + suffix)
  }

  contents = all(h, node)
  head = contents[0]

  if (head && head.type === 'text') {
    head.value = '[' + head.value
  } else {
    contents.unshift(u('text', '['))
  }

  tail = contents[contents.length - 1]

  if (tail && tail.type === 'text') {
    tail.value += suffix
  } else {
    contents.push(u('text', suffix))
  }

  return contents
}