XML parser for Deno

Features

Follow XML.com’s Converting between XML and JSON patterns.

• Support basic XML (tags, self-closed tags, nested tags, attributes, …)
• Support XML.parse and XML.stringify
• Support <?xml ?> prolog declaration
• Support <!DOCTYPE> declaration
• Support <![CDATA[ ]] strings
• Support XML entities (&, &, &, …)
• Support revivers for custom parsing
• Auto-group nodes into arrays when same tag is used
• Auto-unwrap nodes when it only has text content

How reliable is deno.land/x/xml? Check parse tests and stringify tests 🧪

Limitations

• Comments are stripped and cannot be recovered
• When using mixed content of texts and child nodes, text node will be stripped and cannot be recovered
• When using mixed group of nodes, XML.stringify(XML.parse())) may result in different order
  • Example: <a><b/><c/><b/></a> will result in <a><b/><b/><c/></a>
  • This may or may not be acceptable depending on your use case

Basic usage

import { parse } from "https://deno.land/x/xml/mod.ts";

console.log(parse(`
  <root>
    <text>hello</text>
    <array>world</array>
    <array>monde</array>
    <array>世界</array>
    <array>🌏</array>
    <number>42</number>
    <boolean>true</boolean>
    <complex attribute="value">content</complex>
  </root>
`));
/*
  Same nodes are grouped into arrays, while numbers and booleans are auto-parsed (can be disabled)
  Nodes with attributes will not be flattened and you'll be able to access them with "@" prefix while
  text nodes are available through "$" key
  {
    text:"hello",
    array:["world", "monde", "世界", "🌏"],
    number:42,
    boolean:true,
    complex:{
      "@attribute":"value",
      $:"content",
    }
  }
*/

import { stringify } from "https://deno.land/x/xml/mod.ts";

console.log(stringify({
  root: {
    text: "hello",
    array: ["world", "monde", "世界", "🌏"],
    number: 42,
    boolean: true,
    complex: {
      "@attribute": "value",
      $: "content",
    },
  },
}));

Revivers

By default, node contents will be converted to:

• null when empty, unless emptyToNull = false
• number when matching finite numbers, unless reviveNumbers = false
• boolean when matching true or false (case insensitive), unless reviveBooleans = false

XML entities (e.g. &, &, &, …) will be unescaped automatically.

You can also provide a custom reviver that will receive key, value and tag.