Class: Rattler::Compiler::ParserGenerator::GroupMatch

Inherits:
Parsers::Parser show all
Defined in:
lib/rattler/compiler/parser_generator/group_match.rb

Instance Method Summary collapse

Methods inherited from Parsers::Parser

#&, #>>, #capturing?, #capturing_decidable?, #labeled?, #list, #one_or_more, #optional, parsed, #repeat, #semantic?, #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

Instance Method Details

#capture_count ⇒ Object 



13
14
15
 
# File 'lib/rattler/compiler/parser_generator/group_match.rb', line 13

def capture_count
  num_groups
end

#parse(scanner, rules, scope = ParserScope.empty) ⇒ Object 



17
18
19
20
21
22
23
24
25
26
 
# File 'lib/rattler/compiler/parser_generator/group_match.rb', line 17

def parse(scanner, rules, scope = ParserScope.empty)
  scanner.scan(re) && if num_groups == 1
    yield scope.nest.capture(scanner[1]) if block_given?
    scanner[1]
  else
    rs = (1..num_groups).map {|_| scanner[_] }
    yield scope.nest.capture(*rs) if block_given?
    rs
  end
end

#re ⇒ Object 



9
10
11
 
# File 'lib/rattler/compiler/parser_generator/group_match.rb', line 9

def re
  match.re
end

#sequence? ⇒ Boolean

Returns:

  • (Boolean) 


28
29
30
 
# File 'lib/rattler/compiler/parser_generator/group_match.rb', line 28

def sequence?
  num_groups > 1
end