Class: Rattler::Parsers::Token

Inherits:

Parser

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

Includes:

Atomic

Defined in:

lib/rattler/parsers/token.rb

Overview

Token decorates a parser to return the entire matched string

Author:

• Jason Arhart

Instance Method Summary

• #parse(scanner, rules, scope = {}) ⇒ Object

  If the decorated parser matches return the entire matched string, otherwise return a false value.

Methods included from Atomic

#with_ws

Methods inherited from Parser

#&, #capturing?, #labeled?, #one_or_more, #optional, parsed, #skip, #variable_capture_count?, #with_ws, #zero_or_more, #|

Methods inherited from Util::Node

#==, [], #[], #attrs, #can_equal?, #child, #children, #each, #empty?, #eql?, #initialize, #inspect, #method_missing, #name, #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

Instance Method Details

#parse(scanner, rules, scope = {}) ⇒ Object

If the decorated parser matches return the entire matched string, otherwise return a false value.

Returns:

• the matched string, or nil

# File 'lib/rattler/parsers/token.rb', line 25

def parse(scanner, rules, scope = {})
  p = scanner.pos
  child.parse(scanner, rules, scope) && scanner.string[p...(scanner.pos)]
end