Class: Rattler::Parsers::Eof

Inherits:

Parser

• Object
• Util::Node
• Parser
• Rattler::Parsers::Eof

Includes:

Atomic, Singleton

Defined in:

lib/rattler/parsers/eof.rb

Overview

Eof succeeds if there is no more input to parse.

Class Method Summary

• .[] ⇒ Eof

  Return the singleton instance of Eof.

• .parsed(*_) ⇒ Object

Instance Method Summary

• #capturing? ⇒ Object

  true if the parser returns parse results on success, or false if the parser simply returns true on success.

• #parse(scanner, *_) ⇒ Boolean

  Return true if there is no more input to parse.

Methods included from Atomic

#with_ws

Methods inherited from Parser

#&, #>>, #capturing_decidable?, #labeled?, #list, #one_or_more, #optional, #repeat, #semantic?, #sequence?, #skip, #variable_capture_count?, #with_ws, #zero_or_more, #|

Methods included from Runtime::ParserHelper

#select_captures

Methods inherited from Util::Node

#==, #[], #attrs, #can_equal?, #child, #children, #each, #empty?, #eql?, #initialize, #inspect, #method_missing, #name, #pretty_print, #pretty_print_cycle, #respond_to?, #same_contents?, #to_graphviz, #with_attrs, #with_attrs!, #with_children

Constructor Details

This class inherits a constructor from Rattler::Util::Node

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Rattler::Util::Node

Class Method Details

.[] ⇒ Eof

Return the singleton instance of Eof

Returns:

• (Eof) —

  the singleton instance

# File 'lib/rattler/parsers/eof.rb', line 14

def self.[]()
  self.instance
end

.parsed(*_) ⇒ Object

# File 'lib/rattler/parsers/eof.rb', line 19

def self.parsed(*_) #:nodoc:
  self.instance
end

Instance Method Details

#capturing? ⇒ Object

Returns true if the parser returns parse results on success, or false if the parser simply returns true on success.

Returns:

• true if the parser returns parse results on success, or false if the parser simply returns true on success

# File 'lib/rattler/parsers/eof.rb', line 33

def capturing?
  false
end

#parse(scanner, *_) ⇒ Boolean

Return true if there is no more input to parse

Parameters:

• scanner (StringScanner) —

  the scanner for the current parse

• rules (RuleSet) —

  the grammar rules being used for the current parse

• scope (ParserScope) —

  the scope of captured results

Returns:

• (Boolean) —

  true if there is no more input to parse

# File 'lib/rattler/parsers/eof.rb', line 28

def parse(scanner, *_)
  scanner.eos?
end