Use ESM

Author: wooorm

index.js

@@ -1,2 +1 @@
-'use strict'
-module.exports = require('./lib')
+export {toXml} from './lib/index.js'

lib/all.js

@@ -1,11 +1,7 @@
-'use strict'
-
-var one = require('./one')
-
-module.exports = all
+import {one} from './one.js'
 
 // Serialize all children of `parent`.
-function all(parent, config) {
+export function all(parent, config) {
   var children = (parent && parent.children) || []
   var index = -1
   var results = []

lib/cdata.js

@@ -1,13 +1,9 @@
-'use strict'
-
-var escape = require('./util-escape')
-
-module.exports = serializeCdataSection
+import {escape} from './util-escape.js'
 
 var unsafe = /]]>/g
 var subset = ['>']
 
 // Serialize a CDATA section.
-function serializeCdataSection(node) {
+export function cdata(node) {
   return '<![CDATA[' + escape(node.value, subset, unsafe) + ']]>'
 }

lib/comment.js

@@ -1,10 +1,6 @@
-'use strict'
-
-var escape = require('./util-escape')
-
-module.exports = serializeComment
+import {escape} from './util-escape.js'
 
 // Serialize a comment.
-function serializeComment(node) {
+export function comment(node) {
   return '<!--' + escape(node.value, ['-']) + '-->'
 }

lib/doctype.js

@@ -1,12 +1,8 @@
-'use strict'
-
-var name = require('./name')
-var value = require('./value')
-
-module.exports = serializeDocumentType
+import {name} from './name.js'
+import {value} from './value.js'
 
 // Serialize a document type.
-function serializeDocumentType(node, config) {
+export function doctype(node, config) {
   var nodeName = name(node.name)
   var pub = node.public
   var sys = node.system

lib/element.js

@@ -1,13 +1,11 @@
-'use strict'
+import {all} from './all.js'
+import {name} from './name.js'
+import {value} from './value.js'
 
-var all = require('./all')
-var name = require('./name')
-var value = require('./value')
-
-module.exports = serializeElement
+var own = {}.hasOwnProperty
 
 // Serialize an element.
-function serializeElement(node, config) {
+export function element(node, config) {
   var nodeName = name(node.name)
   var content = all(node, config)
   var attributes = node.attributes || {}
@@ -17,10 +15,12 @@ function serializeElement(node, config) {
   var result
 
   for (key in attributes) {
-    result = attributes[key]
+    if (own.call(attributes, key)) {
+      result = attributes[key]
 
-    if (result !== null && result !== undefined) {
-      attrs.push(name(key) + '=' + value(result, config))
+      if (result !== null && result !== undefined) {
+        attrs.push(name(key) + '=' + value(result, config))
+      }
     }
   }
 

lib/index.js

@@ -1,14 +1,10 @@
-'use strict'
-
-var one = require('./one')
-
-module.exports = toXml
+import {one} from './one.js'
 
 var quotationMark = '"'
 var apostrophe = "'"
 
 // Serialize the given node.
-function toXml(node, options) {
+export function toXml(node, options) {
   var settings = options || {}
   var quote = settings.quote || quotationMark
   var alternative = quote === quotationMark ? apostrophe : quotationMark
@@ -34,7 +30,7 @@ function toXml(node, options) {
     dangerous: settings.allowDangerousXml,
     close: settings.closeEmptyElements,
     tight: settings.tightClose,
-    quote: quote,
+    quote,
     alternative: smart ? alternative : null
   })
 }

lib/instruction.js

@@ -1,15 +1,11 @@
-'use strict'
-
-var name = require('./name')
-var escape = require('./util-escape')
-
-module.exports = serializeProcessingInstruction
+import {escape} from './util-escape.js'
+import {name} from './name.js'
 
 var unsafe = /\?>/g
 var subset = ['>']
 
 // Serialize a processing instruction.
-function serializeProcessingInstruction(node) {
+export function instruction(node) {
   var nodeName = name(node.name) || 'x'
   var result = escape(node.value, subset, unsafe)
   return '<?' + nodeName + (result ? ' ' + result : '') + '?>'

lib/name.js

@@ -1,11 +1,7 @@
-'use strict'
-
-var escape = require('./util-escape')
-
-module.exports = serializeName
+import {escape} from './util-escape.js'
 
 var subset = ['\t', '\n', ' ', '"', '&', "'", '/', '<', '=', '>']
 
-function serializeName(value) {
+export function name(value) {
   return escape(value, subset)
 }

lib/one.js

@@ -1,22 +1,27 @@
-'use strict'
-
-module.exports = one
+import {all} from './all.js'
+import {element} from './element.js'
+import {text} from './text.js'
+import {comment} from './comment.js'
+import {doctype} from './doctype.js'
+import {instruction} from './instruction.js'
+import {cdata} from './cdata.js'
+import {raw} from './raw.js'
 
 var own = {}.hasOwnProperty
 
 var handlers = {}
 
-handlers.root = require('./all')
-handlers.element = require('./element')
-handlers.text = require('./text')
-handlers.comment = require('./comment')
-handlers.doctype = require('./doctype')
-handlers.instruction = require('./instruction')
-handlers.cdata = require('./cdata')
-handlers.raw = require('./raw')
+handlers.root = all
+handlers.element = element
+handlers.text = text
+handlers.comment = comment
+handlers.doctype = doctype
+handlers.instruction = instruction
+handlers.cdata = cdata
+handlers.raw = raw
 
 // Serialize one node.
-function one(node, config) {
+export function one(node, config) {
   var type = node && node.type
 
   if (!type) {