Class: Sass::SCSS::StaticParser

Inherits:
Parser
  • Object
show all
Defined in:
lib/sass/scss/static_parser.rb

Overview

A parser for a static SCSS tree. Parses with SCSS extensions, like nested rules and parent selectors, but without dynamic SassScript. This is useful for e.g. parsing selectors after resolving the interpolation.

Direct Known Subclasses

CssParser

Constant Summary

Constants included from RX

RX::ANY, RX::CDC, RX::CDO, RX::COMMENT, RX::DASHMATCH, RX::DOMAIN, RX::ESCAPE, RX::FUNCTION, RX::GREATER, RX::H, RX::HASH, RX::HEXCOLOR, RX::IDENT, RX::IDENT_HYPHEN_INTERP, RX::IDENT_START, RX::IMPORTANT, RX::INCLUDES, RX::INTERP_START, RX::NAME, RX::NL, RX::NMCHAR, RX::NMSTART, RX::NONASCII, RX::NOT, RX::NUMBER, RX::OPTIONAL, RX::PERCENTAGE, RX::PLUS, RX::PREFIXMATCH, RX::RANGE, RX::S, RX::SINGLE_LINE_COMMENT, RX::STATIC_COMPONENT, RX::STATIC_SELECTOR, RX::STATIC_VALUE, RX::STRING, RX::STRING1, RX::STRING1_NOINTERP, RX::STRING2, RX::STRING2_NOINTERP, RX::STRING_NOINTERP, RX::SUBSTRINGMATCH, RX::SUFFIXMATCH, RX::TILDE, RX::UNICODE, RX::UNICODERANGE, RX::UNIT, RX::UNITLESS_NUMBER, RX::URI, RX::URL, RX::URLCHAR, RX::URL_PREFIX, RX::VARIABLE, RX::W

Instance Attribute Summary

Attributes inherited from Parser

#offset

Instance Method Summary collapse

Methods inherited from Parser

#parse, #parse_at_root_query, #parse_declaration_value, #parse_interp_ident, #parse_media_query_list, #parse_supports_clause, #parse_supports_condition

Methods included from RX

escape_ident

Constructor Details

#initialize(str, filename, importer, line = 1, offset = 1, allow_parent_ref = true) ⇒ StaticParser

Returns a new instance of StaticParser.

Parameters:

  • allow_parent_ref (Boolean) (defaults to: true) —

    Whether to allow the parent-reference selector, &, when parsing the document.

See Also:



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# File 'lib/sass/scss/static_parser.rb', line 54

def initialize(str, filename, importer, line = 1, offset = 1, allow_parent_ref = true)
  super(str, filename, importer, line, offset)
  @allow_parent_ref = allow_parent_ref
end

Instance Method Details

#parse_keyframes_selector 



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# File 'lib/sass/scss/static_parser.rb', line 44

def parse_keyframes_selector
  init_scanner!
  sel = expr!(:keyframes_selector)
  expected("keyframes selector") unless @scanner.eos?
  sel
end

#parse_selector ⇒ Selector::CommaSequence

Parses the text as a selector.

Parameters:

  • filename (String, nil) —

    The file in which the selector appears, or nil if there is no such file. Used for error reporting.

Returns:

Raises:



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# File 'lib/sass/scss/static_parser.rb', line 18

def parse_selector
  init_scanner!
  seq = expr!(:selector_comma_sequence)
  expected("selector") unless @scanner.eos?
  seq.line = @line
  seq.filename = @filename
  seq
end

#parse_static_at_root_query ⇒ (Symbol, Array<String>)

Parses a static at-root query.

Returns:

  • ((Symbol, Array<String>)) —

    The type of the query (:with or :without) and the values that are being filtered.

Raises:

  • (Sass::SyntaxError) —

    if there's a syntax error in the query, or if it doesn't take up the entire input string.



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# File 'lib/sass/scss/static_parser.rb', line 33

def parse_static_at_root_query
  init_scanner!
  tok!(/\(/); ss
  type = tok!(/\b(without|with)\b/).to_sym; ss
  tok!(/:/); ss
  directives = expr!(:at_root_directive_list); ss
  tok!(/\)/)
  expected("@at-root query list") unless @scanner.eos?
  return type, directives
end