Html5ever (html5ever v0.10.1) View Source

This is an HTML parser written in Rust.

The project provides a NIF - Native Implemented Function. It works on top of a parser of the same name from the Servo project.

By default this lib will try to use a precompiled NIF from the GitHub releases page. This way you don't need to have the Rust toolchain installed. In case no precompiled file is found and the Mix env is production then an error is raised.

You can force the compilation to occur by setting the value of the HTML5EVER_BUILD environment variable to "true" or "1". Alternatively you can also set the application env :build_from_source to true in order to force the build:

config :html5ever, Html5ever, build_from_source: true

This project is possible thanks to Rustler.

Link to this section Summary

Functions

Parses an HTML document from a string and returns a map.

Parses an HTML document from a string.

Link to this section Functions

Parses an HTML document from a string and returns a map.

The map contains the document structure.

Example

iex> Html5ever.flat_parse("<!doctype html><html><body><h1>Hello world</h1></body></html>")
{:ok,
 %{
   nodes: %{
     0 => %{id: 0, parent: nil, type: :document},
     1 => %{id: 1, parent: 0, type: :doctype},
     2 => %{
       attrs: [],
       children: [3, 4],
       id: 2,
       name: "html",
       parent: 0,
       type: :element
     },
     3 => %{
       attrs: [],
       children: [],
       id: 3,
       name: "head",
       parent: 2,
       type: :element
     },
     4 => %{
       attrs: [],
       children: [5],
       id: 4,
       name: "body",
       parent: 2,
       type: :element
     },
     5 => %{
       attrs: [],
       children: [6],
       id: 5,
       name: "h1",
       parent: 4,
       type: :element
     },
     6 => %{contents: "Hello world", id: 6, parent: 5, type: :text}
   },
   root: 0
 }}

Parses an HTML document from a string.

This returns a list of tuples representing the HTML tree.

Example

iex> Html5ever.parse("<!doctype html><html><body><h1>Hello world</h1></body></html>")
{:ok,
 [
   {:doctype, "html", "", ""},
   {"html", [], [{"head", [], []}, {"body", [], [{"h1", [], ["Hello world"]}]}]}
 ]}