Format XML with `xml-but-prettier`

package.json

@@ -84,6 +84,7 @@
     "whatwg-fetch": "0.11.1",
     "worker-loader": "^0.7.1",
     "xml": "1.0.1",
+    "xml-but-prettier": "^1.0.1",
     "yaml-js": "0.2.0"
   },
   "devDependencies": {

src/core/components/response-body.jsx

@@ -1,6 +1,6 @@
 import React from "react"
 import PropTypes from "prop-types"
-import { formatXml } from "core/utils"
+import formatXml from "xml-but-prettier"
 import lowerCase from "lodash/lowerCase"
 
 export default class ResponseBody extends React.Component {
@@ -31,7 +31,9 @@ export default class ResponseBody extends React.Component {
 
       // XML
     } else if (/xml/i.test(contentType)) {
-      body = formatXml(content)
+      body = formatXml(content, {
+        textNodesOnSameLine: true
+      })
       bodyEl = <HighlightCode value={ body } />
 
       // HTML or Plain Text

src/core/utils.js

@@ -155,76 +155,6 @@ export function getList(iterable, keys) {
   return Im.List.isList(val) ? val : Im.List()
 }
 
-// Adapted from http://stackoverflow.com/a/2893259/454004
-// Note: directly ported from CoffeeScript
-export function formatXml (xml) {
-  var contexp, fn, formatted, indent, l, lastType, len, lines, ln, reg, transitions, wsexp
-  reg = /(>)(<)(\/*)/g
-  wsexp = /[ ]*(.*)[ ]+\n/g
-  contexp = /(<.+>)(.+\n)/g
-  xml = xml.replace(/\r\n/g, "\n").replace(reg, "$1\n$2$3").replace(wsexp, "$1\n").replace(contexp, "$1\n$2")
-  formatted = ""
-  lines = xml.split("\n")
-  indent = 0
-  lastType = "other"
-  transitions = {
-    "single->single": 0,
-    "single->closing": -1,
-    "single->opening": 0,
-    "single->other": 0,
-    "closing->single": 0,
-    "closing->closing": -1,
-    "closing->opening": 0,
-    "closing->other": 0,
-    "opening->single": 1,
-    "opening->closing": 0,
-    "opening->opening": 1,
-    "opening->other": 1,
-    "other->single": 0,
-    "other->closing": -1,
-    "other->opening": 0,
-    "other->other": 0
-  }
-  fn = function(ln) {
-    var fromTo, padding, type
-    
-    if (ln.match(/<.+\/>/)) {
-      type = "single"
-    } else if (ln.match(/<\/.+>/)) {
-      type = "closing"
-    } else if (ln.match(/<[^!?].*>/)) {
-      type = "opening"
-    } else {
-      type = "other"
-    }    
-    fromTo = lastType + "->" + type
-    lastType = type
-    padding = ""
-    indent += transitions[fromTo]
-    padding = ((function() {
-      /* eslint-disable no-unused-vars */
-      var m, ref1, results, j
-      results = []
-      for (j = m = 0, ref1 = indent; 0 <= ref1 ? m < ref1 : m > ref1; j = 0 <= ref1 ? ++m : --m) {
-        results.push("  ")
-      }
-      /* eslint-enable no-unused-vars */
-      return results
-    })()).join("")
-    if (fromTo === "opening->closing") {
-      formatted = formatted.substr(0, formatted.length - 1) + ln + "\n"
-    } else {
-      formatted += padding + ln + "\n"
-    }
-  }
-  for (l = 0, len = lines.length; l < len; l++) {
-    ln = lines[l]
-    fn(ln)
-  }
-  return formatted
-}
-
-
 /**
  * Adapted from http://github.com/asvd/microlight
  * @copyright 2016 asvd <heliosframework@gmail.com>

test/core/utils.js

@@ -17,7 +17,6 @@ import {
   getAcceptControllingResponse,
   createDeepLinkPath,
   escapeDeepLinkPath,
-  formatXml,
   sanitizeUrl
 } from "core/utils"
 import win from "core/window"
@@ -888,16 +887,6 @@ describe("utils", function() {
     })
   })
 
-  describe("formatXml", function() {
-    it("simple xml formatting", function() {
-      const startTime = Date.now()
-      const result = formatXml("<xml><name>john doe</name></xml>")
-      let duration = Date.now() - startTime
-      expect(result).toEqual("<xml>\n  <name>john doe</name>\n</xml>\n") 
-      expect(duration).toBeLessThan(5)
-    })    
-  })
-
   describe("sanitizeUrl", function() {
     it("should sanitize a `javascript:` url", function() {
       const res = sanitizeUrl("javascript:alert('bam!')")