Class: Regexp::Parser

Inherits:
Object
  • Object
show all
Includes:
Expression, Expression::UnicodeProperty, Syntax
Defined in:
lib/regexp_parser/parser.rb,
lib/regexp_parser/version.rb

Defined Under Namespace

Classes: ParserError, UnknownTokenError, UnknownTokenTypeError

Constant Summary collapse

VERSION = 
'0.4.13'

Constants included from Syntax

Syntax::VERSIONS, Syntax::VERSION_FORMAT, Syntax::VERSION_REGEXP

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Syntax

new, supported?, version_class

Methods included from Expression

parsed

Class Method Details

.parse(input, syntax = "ruby/#{RUBY_VERSION}", &block) ⇒ Object 



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# File 'lib/regexp_parser/parser.rb', line 21

def self.parse(input, syntax = "ruby/#{RUBY_VERSION}", &block)
  new.parse(input, syntax, &block)
end

Instance Method Details

#parse(input, syntax = "ruby/#{RUBY_VERSION}", &block) ⇒ Object 



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# File 'lib/regexp_parser/parser.rb', line 25

def parse(input, syntax = "ruby/#{RUBY_VERSION}", &block)
  @nesting = [@root = @node = Root.new(options_from_input(input))]

  @options_stack = [@root.options]
  @switching_options = false
  @conditional_nesting = []

  Regexp::Lexer.scan(input, syntax) do |token|
    parse_token token
  end

  if block_given?
    block.call @root
  else
    @root
  end
end