Module: Sass::SCSS::RX

Included in:

Parser, Sass::Script::Lexer

Defined in:

.ruby-sass/lib/sass/scss/rx.rb

Overview

Constant Summary

H =

/[0-9a-fA-F]/

NL =

/\n|\r\n|\r|\f/

UNICODE =

/\\#{H}{1,6}[ \t\r\n\f]?/

NONASCII =

/[#{s}]/

ESCAPE =

/#{UNICODE}|\\[ -~#{s}]/

NMSTART =

/[_a-zA-Z]|#{NONASCII}|#{ESCAPE}/

NMCHAR =

/[a-zA-Z0-9_-]|#{NONASCII}|#{ESCAPE}/

STRING1 =

/\"((?:[^\n\r\f\\"]|\\#{NL}|#{ESCAPE})*)\"/

STRING2 =

/\'((?:[^\n\r\f\\']|\\#{NL}|#{ESCAPE})*)\'/

IDENT =

/-*#{NMSTART}#{NMCHAR}*/

NAME =

/#{NMCHAR}+/

STRING =

/#{STRING1}|#{STRING2}/

URLCHAR =

/[#%&*-~]|#{NONASCII}|#{ESCAPE}/

URL =

/(#{URLCHAR}*)/

W =

/[ \t\r\n\f]*/

VARIABLE =

/(\$)(#{Sass::SCSS::RX::IDENT})/

RANGE =

This is more liberal than the spec's definition, but that definition didn't work well with the greediness rules

/(?:#{H}|\?){1,6}/

S =

/[ \t\r\n\f]+/

COMMENT =

%r{/\*([^*]|\*+[^/*])*\**\*/}

SINGLE_LINE_COMMENT =

%r{//.*(\n[ \t]*//.*)*}

CDO =

quote("<!--")

CDC =

quote("-->")

INCLUDES =

quote("~=")

DASHMATCH =

quote("|=")

PREFIXMATCH =

quote("^=")

SUFFIXMATCH =

quote("$=")

SUBSTRINGMATCH =

quote("*=")

HASH =

/##{NAME}/

IMPORTANT =

/!#{W}important/i

UNIT =

A unit is like an IDENT, but disallows a hyphen followed by a digit. This allows “1px-2px” to be interpreted as subtraction rather than “1” with the unit “px-2px”. It also allows “%”.

/-?#{NMSTART}(?:[a-zA-Z0-9_]|#{NONASCII}|#{ESCAPE}|-(?!\.?\d))*|%/

UNITLESS_NUMBER =

/(?:[0-9]+|[0-9]*\.[0-9]+)(?:[eE][+-]?\d+)?/

NUMBER =

/#{UNITLESS_NUMBER}(?:#{UNIT})?/

PERCENTAGE =

/#{UNITLESS_NUMBER}%/

URI =

/url\(#{W}(?:#{STRING}|#{URL})#{W}\)/i

FUNCTION =

/#{IDENT}\(/

UNICODERANGE =

/u\+(?:#{H}{1,6}-#{H}{1,6}|#{RANGE})/i

PLUS =

Defined in www.w3.org/TR/css3-selectors/#lex

/#{W}\+/

GREATER =

/#{W}>/

TILDE =

/#{W}~/

NOT =

quote(":not(", Regexp::IGNORECASE)

URL_PREFIX =

Defined in developer.mozilla.org/en/CSS/@-moz-document as a non-standard version of www.w3.org/TR/css3-conditional/

/url-prefix\(#{W}(?:#{STRING}|#{URL})#{W}\)/i

DOMAIN =

/domain\(#{W}(?:#{STRING}|#{URL})#{W}\)/i

HEXCOLOR =

Custom

/\#[0-9a-fA-F]+/

INTERP_START =

/#\{/

ANY =

/:(-[-\w]+-)?any\(/i

OPTIONAL =

/!#{W}optional/i

IDENT_START =

/-|#{NMSTART}/

IDENT_HYPHEN_INTERP =

/-+(?=#\{)/

STRING1_NOINTERP =

/\"((?:[^\n\r\f\\"#]|#(?!\{)|#{ESCAPE})*)\"/

STRING2_NOINTERP =

/\'((?:[^\n\r\f\\'#]|#(?!\{)|#{ESCAPE})*)\'/

STRING_NOINTERP =

/#{STRING1_NOINTERP}|#{STRING2_NOINTERP}/

STATIC_COMPONENT =

/#{IDENT}|#{STRING_NOINTERP}|#{HEXCOLOR}|[+-]?#{NUMBER}|\!important/i

STATIC_VALUE =

%r(#{STATIC_COMPONENT}(\s*[\s,\/]\s*#{STATIC_COMPONENT})*(?=[;}]))i

STATIC_SELECTOR =

/(#{NMCHAR}|[ \t]|[,>+*]|[:#.]#{NMSTART}){1,50}([{])/i

Class Method Summary (collapse)

• .escape_char(c) ⇒ String

  Escapes a single character for a CSS identifier.

• .escape_ident(str) ⇒ String

  Takes a string and returns a CSS identifier that will have the value of the given string.

• .quote(str, flags = 0) ⇒ Regexp

  Creates a Regexp from a plain text string, escaping all significant characters.

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# File '.ruby-sass/lib/sass/scss/rx.rb', line 34

def self.escape_char(c)
  return "\\%06x" % c.ord unless c =~ %r{[ -/:-~]}
  "\\#{c}"
end

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# File '.ruby-sass/lib/sass/scss/rx.rb', line 14

def self.escape_ident(str)
  return "" if str.empty?
  return "\\#{str}" if str == '-' || str == '_'
  out = ""
  value = str.dup
  out << value.slice!(0...1) if value =~ /^[-_]/
  if value[0...1] =~ NMSTART
    out << value.slice!(0...1)
  else
    out << escape_char(value.slice!(0...1))
  end
  out << value.gsub(/[^a-zA-Z0-9_-]/) {|c| escape_char c}
  out
end

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# File '.ruby-sass/lib/sass/scss/rx.rb', line 46

def self.quote(str, flags = 0)
  Regexp.new(Regexp.quote(str), flags)
end