Update unist-util-is

Author: wooorm

lib/search.js

@@ -4,18 +4,18 @@ module.exports = search
 
 var toString = require('mdast-util-to-string')
 var visit = require('unist-util-visit')
-var is = require('unist-util-is')
+var convert = require('unist-util-is/convert')
 var slugs = require('github-slugger')()
 
-var HEADING = 'heading'
+var heading = convert('heading')
 
 // Search a node for a location.
 function search(root, expression, settings) {
   var length = root.children.length
   var depth = null
   var lookingForToc = expression !== null
   var maxDepth = settings.maxDepth || 6
-  var parents = settings.parents || root
+  var parents = convert(settings.parents || root)
   var map = []
   var headingIndex
   var closingIndex
@@ -28,7 +28,7 @@ function search(root, expression, settings) {
 
   // Visit all headings in `root`.  We `slug` all headings (to account for
   // duplicates), but only create a TOC from top-level headings.
-  visit(root, HEADING, onheading)
+  visit(root, 'heading', onheading)
 
   if (headingIndex && !closingIndex) {
     closingIndex = length + 1
@@ -46,7 +46,7 @@ function search(root, expression, settings) {
     var value = toString(child)
     var id = child.data && child.data.hProperties && child.data.hProperties.id
 
-    if (!is(parents, parent)) {
+    if (!parents(parent)) {
       return
     }
 
@@ -74,15 +74,10 @@ function search(root, expression, settings) {
 
 // Check if `node` is the main heading.
 function isOpeningHeading(node, depth, expression) {
-  return (
-    depth === null &&
-    node &&
-    node.type === HEADING &&
-    expression.test(toString(node))
-  )
+  return depth === null && heading(node) && expression.test(toString(node))
 }
 
 // Check if `node` is the next heading.
 function isClosingHeading(node, depth) {
-  return depth && node && node.type === HEADING && node.depth <= depth
+  return depth && heading(node) && node.depth <= depth
 }

package.json

@@ -23,7 +23,7 @@
     "extend": "^3.0.2",
     "github-slugger": "^1.2.1",
     "mdast-util-to-string": "^1.0.5",
-    "unist-util-is": "^2.1.2",
+    "unist-util-is": "^3.0.0",
     "unist-util-visit": "^1.1.0"
   },
   "devDependencies": {