Class: Depager::ASTBuilderExtension::PostRhs1::Parser

Inherits:
LALR::Basis show all
Includes:
Utils::ExtensionSlaveMethods
Defined in:
lib/depager/plugins/ast.rb

Overview

:nodoc:all

Constant Summary collapse

REDUCE_TABLE =

Reduce Table

[
  [ -1, 1 ],
  [ 0, 1 ],
  [ 2, 3 ],
  [ 2, 4 ],
  [ 3, 1 ],
  [ 3, 3 ],
  [ 1, 1 ],
  [ 1, 1 ],
  [ 1, 1 ],
  [ 4, 2 ],
  [ 4, 1 ],
  [ 4, 1 ],
  [ 4, 1 ],
  [ 4, 1 ],
  [ 4, 1 ],
  [ 4, 1 ],
  [ 6, 0 ],
  [ 6, 1 ],
  [ 5, 2 ],
  [ 5, 3 ],
  [ 5, 3 ],
  [ 5, 3 ],
]
TERM_TO_INT =

Term to Int

{
  nil => 0,
  false => 1,
  :ID => 2,
  "(" => 3,
  ")" => 4,
  "," => 5,
  :CONST => 6,
  :SYMBOL => 7,
  :STR => 8,
  :NILNODE => 9,
  :NUMBER => 10,
  :NIL => 11,
  :EMBED => 12,
  "[" => 13,
  "]" => 14,
  :LL => 15,
  "@" => 16,
}
INT_TO_TERM =

Int to Term

[
  nil,
  false,
  :ID,
  "(",
  ")",
  ",",
  :CONST,
  :SYMBOL,
  :STR,
  :NILNODE,
  :NUMBER,
  :NIL,
  :EMBED,
  "[",
  "]",
  :LL,
  "@",
]
ACTION_TABLE =

Action Table

[
  [ nil, nil, 6, nil, nil, nil, 7, 8, 9, 10, 11, 12, nil, 13, nil, nil, nil, ],
  [ ACC, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, 14, 15, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, 16, nil, nil, nil, nil, nil, nil, nil, nil, 18, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, 6, nil, nil, nil, 7, 8, 9, 10, 11, 12, nil, 13, 19, nil, nil, ],
  [ nil, nil, 6, nil, nil, nil, 7, 8, 9, 10, 11, 12, nil, 13, nil, nil, nil, ],
  [ nil, nil, 6, nil, nil, nil, 7, 8, 9, 10, 11, 12, nil, 13, nil, nil, nil, ],
  [ nil, nil, 6, nil, 24, nil, 7, 8, 9, 10, 11, 12, nil, 13, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, 26, nil, nil, nil, nil, nil, nil, nil, nil, 27, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, 14, 15, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, 14, 15, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, 14, 15, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, 28, 26, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, 6, nil, nil, nil, 7, 8, 9, 10, 11, 12, nil, 13, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, 14, 15, ],
]
DEFRED_TABLE =

Default Reduce Table

[
  nil,
  nil,
  -1,
  -6,
  -7,
  -8,
  -16,
  -10,
  -11,
  -12,
  -13,
  -14,
  -15,
  nil,
  nil,
  nil,
  nil,
  -9,
  -17,
  -18,
  nil,
  -4,
  -20,
  -21,
  -2,
  nil,
  nil,
  -19,
  -3,
  -5,
]
DEFRED_AFTER_SHIFT_TABLE = 
[
  nil,
  nil,
  nil,
  -6,
  -7,
  -8,
  nil,
  -10,
  -11,
  -12,
  -13,
  -14,
  -15,
  nil,
  nil,
  nil,
  nil,
  -9,
  -17,
  -18,
  nil,
  nil,
  nil,
  nil,
  -2,
  nil,
  nil,
  -19,
  -3,
  nil,
]
NONTERM_TO_INT =

Nonterm to Int

{
  :start => 0,
  :fnl => 1,
  :node => 2,
  :fnlpair => 3,
  :fact => 4,
  :list => 5,
  :opt_embed => 6,
}
INT_TO_NONTERM =

Int to Nonterm

[
  :start,
  :fnl,
  :node,
  :fnlpair,
  :fact,
  :list,
  :opt_embed,
]
GOTO_TABLE =

Goto Table

[
  [ 1, 2, 4, nil, 3, 5, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, 17, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, 21, 4, 20, 3, 5, nil, ],
  [ nil, 22, 4, nil, 3, 5, nil, ],
  [ nil, 23, 4, nil, 3, 5, nil, ],
  [ nil, 21, 4, 25, 3, 5, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, 29, 4, nil, 3, 5, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
  [ nil, nil, nil, nil, nil, nil, nil, ],
]

Constants inherited from LALR::Parser

LALR::Parser::ACC

Instance Attribute Summary

Attributes included from Utils::ExtensionSlaveMethods

#d_parser, #g_parser, #master

Attributes inherited from LALR::Basis

#action_value, #basis, #file, #line, #lookahead, #parser_size, #stack

Instance Method Summary collapse

Methods included from Utils::ExtensionSlaveMethods

#abort_driver, #do_default, #do_parse

Methods included from Utils::CodeGeneratorMethods

#expand_inline_code, #generate_action_decorator_code, #generate_decorator_code, #parse_block

Methods included from Utils::CommonMethods

#error_exit, #error_message, #expanded_code_delimiter, #file, #full_target_name, #input_path, #inspect, #target_name, #target_namespace, #warning

Methods inherited from LALR::Basis

#abort_driver, #accept, #do_abort_driver, #error, #next_decorator_index, #reduce, #shift

Methods inherited from LALR::Parser

#accept, #error, #parse, #reduce, #shift

Constructor Details

#initialize(g_parser, master) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/depager/plugins/ast.rb', line 929

def initialize g_parser, master
  super()
  @g_parser  = g_parser
  @d_parser  = g_parser.d_parser
  @master    = master
  @decorated = Action.new(self)
end

Instance Method Details

#action_table ⇒ Object 



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# File 'lib/depager/plugins/ast.rb', line 799

def action_table; ACTION_TABLE; end
 


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# File 'lib/depager/plugins/ast.rb', line 948

def banner
  "=>... / Depager::ASTBuilderExtension"
end

#defred_after_shift_table ⇒ Object 



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# File 'lib/depager/plugins/ast.rb', line 868

def defred_after_shift_table; DEFRED_AFTER_SHIFT_TABLE; end

#defred_table ⇒ Object 



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# File 'lib/depager/plugins/ast.rb', line 834

def defred_table; DEFRED_TABLE; end

#do_parse? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/depager/plugins/ast.rb', line 938

def do_parse?
  if @line.match(/^\s*=>/)
     @line = $' 
    true
  else
    false
  end
end

#goto_table ⇒ Object 



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# File 'lib/depager/plugins/ast.rb', line 927

def goto_table; GOTO_TABLE; end

#int_to_nonterm ⇒ Object 



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# File 'lib/depager/plugins/ast.rb', line 892

def int_to_nonterm; INT_TO_NONTERM; end

#int_to_term ⇒ Object 



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# File 'lib/depager/plugins/ast.rb', line 764

def int_to_term; INT_TO_TERM; end

#lex {|nil, nil| ... } ⇒ Object

Yields:

  • (nil, nil) 


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# File 'lib/depager/plugins/ast.rb', line 952

def lex
  begin
    until @line.empty?
      case @line
          when /\A[ \t]+/
            @line = $'
                 

          when /\A\r?\n/
            @line = $'
                 yield nil, nil                 

          when /\A<</
            @line = $'
                 yield token(:LL, $&)          

          when /\A%([a-zA-Z0-9_]+)((::[a-zA-Z0-9_]+)*)/
            @line = $'
                 yield token(:CONST, $1+$2)    

          when /\A%\((.+)\)%/
            @line = $'
                 yield token(:EMBED, $1)       

          when /\Anil/
            @line = $'
                 yield token(:NIL, $&)         

          when /\ANilNode/
            @line = $'
                 yield token(:NILNODE, $&)     

          when /\A[0-9]+/
            @line = $'
                 yield token(:NUMBER, $&.to_i) 

          when /\A:[a-zA-Z0-9_]+/
            @line = $'
                 yield token(:SYMBOL, $&)      

          when /\A[a-zA-Z][a-zA-Z0-9_]*/
            @line = $'
                 yield token(:ID, $&)          

          when /\A'(.+)'/
            @line = $'
                 yield token(:STR, $1)         

          when /\A./
            @line = $'
                 yield token($&, $&)           


      else
        raise RuntimeError, "must not happen #{@line}"
      end
    end
  end while @original_line = @line = file.gets
  yield nil, nil
end

#nonterm_to_int ⇒ Object 



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# File 'lib/depager/plugins/ast.rb', line 880

def nonterm_to_int; NONTERM_TO_INT; end

#reduce_table ⇒ Object 



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# File 'lib/depager/plugins/ast.rb', line 720

def reduce_table; REDUCE_TABLE; end

#term_to_int ⇒ Object 



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# File 'lib/depager/plugins/ast.rb', line 742

def term_to_int; TERM_TO_INT; end