Class: Sass::SCSS::Parser

### Home Classes Methods

### In Files

- lib/sass/scss/parser.rb

### Parent

Object

### Methods

- ::new
- #parse
- #parse_at_root_query
- #parse_interp_ident
- #parse_media_query_list
- #parse_supports_condition

### Included Modules

- Sass::SCSS::RX

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# Sass::SCSS::Parser

The parser for SCSS. It parses a string of code into a tree of {Sass::Tree::Node}s.

### Constants

DIRECTIVES
EXPR_NAMES
NEWLINE

  Avoid allocating lots of new strings for `tok`. This is important because `tok` is called all the time.

PREFIXED_DIRECTIVES
TOK_NAMES

### Attributes

offset[RW]

Expose for the SASS parser.

### Public Class Methods

new(str, filename, importer, line = 1, offset = 1) click to toggle source

@param str [String, StringScanner] The source document to parse.

    Note that `Parser` *won't* raise a nice error message if this isn't properly parsed;
    for that, you should use the higher-level {Sass::Engine} or {Sass::CSS}.

@param filename [String] The name of the file being parsed. Used for

    warnings and source maps.

@param importer [Sass::Importers::Base] The importer used to import the

    file being parsed. Used for source maps.

@param line [Fixnum] The 1-based line on which the source string appeared,

    if it's part of another document.

@param offset [Fixnum] The 1-based character (not byte) offset in the line on

    which the source string starts. Used for error reporting and sourcemap
    building.

@comment

    rubocop:disable ParameterLists

    # File lib/sass/scss/parser.rb, line 25
    def initialize(str, filename, importer, line = 1, offset = 1)
      # rubocop:enable ParameterLists
      @template = str
      @filename = filename
      @importer = importer
      @line = line
      @offset = offset
      @strs = []
    end

### Public Instance Methods

parse() click to toggle source

Parses an SCSS document.

@return [Sass::Tree::RootNode] The root node of the document tree @raise [Sass::SyntaxError] if there's a syntax error in the document

    # File lib/sass/scss/parser.rb, line 39
    def parse
      init_scanner!
      root = stylesheet
      expected("selector or at-rule") unless root && @scanner.eos?
      root
    end

parse_at_root_query() click to toggle source

Parses an at-root query.

@return [Array<String, Sass::Script;:Tree::Node>] The interpolated query. @raise [Sass::SyntaxError] if there's a syntax error in the query,

    or if it doesn't take up the entire input string.

    # File lib/sass/scss/parser.rb, line 74
    def parse_at_root_query
      init_scanner!
      query = at_root_query
      expected("@at-root query list") unless query && @scanner.eos?
      query
    end

parse_interp_ident() click to toggle source

Parses an identifier with interpolation. Note that this won't assert that the identifier takes up the entire input string; it's meant to be used with `StringScanner`s as part of other parsers.

@return [Array<String, Sass::Script::Tree::Node>, nil]

    The interpolated identifier, or nil if none could be parsed

    # File lib/sass/scss/parser.rb, line 52
    def parse_interp_ident
      init_scanner!
      interp_ident
    end

parse_media_query_list() click to toggle source

Parses a media query list.

@return [Sass::Media::QueryList] The parsed query list @raise [Sass::SyntaxError] if there's a syntax error in the query list,

    or if it doesn't take up the entire input string.

    # File lib/sass/scss/parser.rb, line 62
    def parse_media_query_list
      init_scanner!
      ql = media_query_list
      expected("media query list") unless ql && @scanner.eos?
      ql
    end

parse_supports_condition() click to toggle source

Parses a supports query condition.

@return [Sass::Supports::Condition] The parsed condition @raise [Sass::SyntaxError] if there's a syntax error in the condition,

    or if it doesn't take up the entire input string.

    # File lib/sass/scss/parser.rb, line 86
    def parse_supports_condition
      init_scanner!
      condition = supports_condition
      expected("supports condition") unless condition && @scanner.eos?
      condition
    end

[Validate]

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