PureHTML.Query.Selector.Tokenizer (PureHTML v0.4.0)

Tokenizes CSS selector strings into a stream of tokens.

Token Types

{:ident, value} - Identifier (tag name, attribute name/value)
{:class, value} - Class selector (.class)
{:id, value} - ID selector (#id)
:star - Universal selector (*)
:open_bracket - Opening bracket for attribute selector
:close_bracket - Closing bracket for attribute selector
:equal - Exact match (=)
:prefix_match - Prefix match (^=)
:suffix_match - Suffix match ($=)
:substring_match - Substring match (*=)
:comma - Selector list separator
{:string, value} - Quoted string
:child - Child combinator (>)
:adjacent_sibling - Adjacent sibling combinator (+)
:general_sibling - General sibling combinator (~)
:whitespace - Whitespace (potential descendant combinator)

Summary

Types

token()

Functions

tokenize(input)

Tokenizes a CSS selector string into a list of tokens.

Types

token()

@type token() ::
  {:ident, String.t()}
  | {:class, String.t()}
  | {:id, String.t()}
  | :star
  | :open_bracket
  | :close_bracket
  | :equal
  | :prefix_match
  | :suffix_match
  | :substring_match
  | :comma
  | {:string, String.t()}
  | :child
  | :adjacent_sibling
  | :general_sibling
  | :whitespace

Functions

tokenize(input)

@spec tokenize(String.t()) :: [token()]

Tokenizes a CSS selector string into a list of tokens.

Examples

iex> PureHTML.Query.Selector.Tokenizer.tokenize("div")
[{:ident, "div"}]

iex> PureHTML.Query.Selector.Tokenizer.tokenize(".class")
[{:class, "class"}]

iex> PureHTML.Query.Selector.Tokenizer.tokenize("#id")
[{:id, "id"}]

iex> PureHTML.Query.Selector.Tokenizer.tokenize("div.foo#bar")
[{:ident, "div"}, {:class, "foo"}, {:id, "bar"}]