expadom

An XML DOM Level 2 Core implementation in Lua (with some Level 3 additions), based on the (Lua)Expat parser.

Parsing documents

To parse documents start with the main expadom module;

local parseXml = require("expadom").parseDocument
local doc = parseXml("<root>hello world</root>")

Creating documents

To create documents use the DOMImplementation to create a Document. From there the Document interface can be used to create all sorts of children and build the document;

local DOM = require("expadom.DOMImplementation")()
local doc = DOM:createDocument(nil, "root")
local root = doc.documentElement
root:appendChild(doc:createTextNode("hello world"))

Good to know

Namespaces are tracked on a per Node basis, not in Attributes, see Namespaces.
This is a Lua implementation, so any 0-based indices mentioned in the DOM Level 2 specification will be 1-based in this implementation.
The spec defines "dynamic", and readonly properties, like Node.nextSibling for example. In Lua traditionally properties are static fields on a table. This implementation however stays close to the spec, and has dynamic properties, although this is not very 'lua-ish'.
The only supported encoding is UTF-8. The underlying Expat parser will convert the other common ones to UTF-8, so parsing is covered. But generated output will only be UTF-8.
DTD's are not supported, neither external nor internal subsets.

expadom

Contents

Topics

Modules

Classes

expadom

Parsing documents

Creating documents

Good to know