Class: CmdParse

Inherits:
Object
  • Object
show all
Defined in:
app/cmd_parser.rb

Defined Under Namespace

Modules: EnhancedErrors Classes: Breakpoint, LeftRecursive, List, MemoEntry, Position, SymbolEntry

Constant Summary collapse

DEFAULT_OPTS = 
{
  :debug=>false, 
  :file_exists_proc => Proc.new{|filename|
      File.readable?(filename) && !File.directory?(filename)
  }
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(str, opts = {}) ⇒ CmdParse

This is distinct from setup_parser so that a standalone parser can redefine #initialize and still have access to the proper parser setup code.



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# File 'app/cmd_parser.rb', line 18

def initialize(str, debug=false)
  setup_parser(str, debug)
end

Instance Attribute Details

#expected_string ⇒ Object (readonly)

Returns the value of attribute expected_string.



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# File 'app/cmd_parser.rb', line 23

def expected_string
  @expected_string
end

#failing_offset ⇒ Object (readonly)

Returns the value of attribute failing_offset.



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# File 'app/cmd_parser.rb', line 23

def failing_offset
  @failing_offset
end

#pos ⇒ Object

Returns the value of attribute pos.



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# File 'app/cmd_parser.rb', line 24

def pos
  @pos
end

#result ⇒ Object (readonly)

Returns the value of attribute result.



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# File 'app/cmd_parser.rb', line 23

def result
  @result
end

#string ⇒ Object (readonly)

Returns the value of attribute string.



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# File 'app/cmd_parser.rb', line 22

def string
  @string
end

Instance Method Details

#__hyphen_ ⇒ Object

  • sp+



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# File 'app/cmd_parser.rb', line 899

def __hyphen_
  _save = self.pos
  _tmp = apply(:_sp)
  if _tmp
      while true
              _tmp = apply(:_sp)
          break unless _tmp
        end
        _tmp = true
      else
        self.pos = _save
      end
  return _tmp
end

#_breakpoint_stmt ⇒ Object

breakpoint_stmt = (location:loc - if_unless:iu - condition:cond { Breakpoint.new(loc, iu == ‘unless’, cond) } | breakpoint_stmt_no_condition)



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# File 'app/cmd_parser.rb', line 1724

def _breakpoint_stmt
              
  _save = self.pos
                  while true # choice
                
  _save1 = self.pos
                    while true # sequence
                      _tmp = apply(:_location)
                      loc = @result
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      _tmp = apply(:__hyphen_)
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      _tmp = apply(:_if_unless)
                      iu = @result
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      _tmp = apply(:__hyphen_)
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      _tmp = apply(:_condition)
                      cond = @result
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      @result = begin;                     
   Breakpoint.new(loc, iu == 'unless', cond)
; end
                      _tmp = true
                      unless _tmp
                        self.pos = _save1
                      end
                      break
                    end # end sequence

                    break if _tmp
                    self.pos = _save
                    _tmp = apply(:_breakpoint_stmt_no_condition)
                    break if _tmp
                    self.pos = _save
                    break
                  end # end choice

  return _tmp
end

#_breakpoint_stmt_no_condition ⇒ Object

breakpoint_stmt_no_condition = location:loc { Breakpoint.new(loc, false, ‘true’) }



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# File 'app/cmd_parser.rb', line 1700

def _breakpoint_stmt_no_condition
              
  _save = self.pos
                  while true # sequence
                    _tmp = apply(:_location)
                    loc = @result
                    unless _tmp
                      self.pos = _save
                      break
                    end
                    @result = begin;                   
Breakpoint.new(loc, false, 'true')
; end
                    _tmp = true
                    unless _tmp
                      self.pos = _save
                    end
                    break
                  end # end sequence

  return _tmp
end

#_class_module_chain ⇒ Object

class_module_chain = (< identifier:parent id_separator:sep internal_class_module_chain:child > { SymbolEntry.new(parent.type, text, [parent, child, sep]) } | identifier)



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# File 'app/cmd_parser.rb', line 833

def _class_module_chain

  _save = self.pos
  while true # choice

  _save1 = self.pos
    while true # sequence
      _text_start = self.pos
  
  _save2 = self.pos
      while true # sequence
        _tmp = apply(:_identifier)
        parent = @result
        unless _tmp
          self.pos = _save2
          break
        end
        _tmp = apply(:_id_separator)
        sep = @result
        unless _tmp
          self.pos = _save2
          break
        end
        _tmp = apply(:_internal_class_module_chain)
        child = @result
        unless _tmp
          self.pos = _save2
        end
        break
      end # end sequence

      if _tmp
        text = get_text(_text_start)
      end
      unless _tmp
        self.pos = _save1
        break
      end
      @result = begin;     
       SymbolEntry.new(parent.type, text, [parent, child, sep])
    ; end
      _tmp = true
      unless _tmp
        self.pos = _save1
      end
      break
    end # end sequence

    break if _tmp
    self.pos = _save
    _tmp = apply(:_identifier)
    break if _tmp
    self.pos = _save
    break
  end # end choice

  return _tmp
end

#_classvar_identifier ⇒ Object

classvar_identifier = “@@” local_identifier:id { SymbolEntry.new(:classvar, id) }



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# File 'app/cmd_parser.rb', line 685

def _classvar_identifier

  _save = self.pos
  while true # sequence
    _tmp = match_string("@@")
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:_local_identifier)
    id = @result
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;   
   SymbolEntry.new(:classvar, id)
  ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  return _tmp
end

#_condition ⇒ Object

condition = < /.+/ > { text}



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# File 'app/cmd_parser.rb', line 1675

def _condition
              
  _save = self.pos
                  while true # sequence
                    _text_start = self.pos
                    _tmp = scan(/\A(?-mix:.+)/)
                    if _tmp
                      text = get_text(_text_start)
                    end
                    unless _tmp
                      self.pos = _save
                      break
                    end
                    @result = begin;                    text; end
                    _tmp = true
                    unless _tmp
                      self.pos = _save
                    end
                    break
                  end # end sequence

  return _tmp
end

#_constant_identifier ⇒ Object

constant_identifier = < upcase_letter id_symbol* > { SymbolEntry.new(:constant, text) }



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# File 'app/cmd_parser.rb', line 513

def _constant_identifier

  _save = self.pos
  while true # sequence
    _text_start = self.pos

  _save1 = self.pos
    while true # sequence
      _tmp = apply(:_upcase_letter)
      unless _tmp
        self.pos = _save1
        break
      end
      while true
        _tmp = apply(:_id_symbol)
        break unless _tmp
      end
      _tmp = true
      unless _tmp
        self.pos = _save1
      end
      break
    end # end sequence

    if _tmp
      text = get_text(_text_start)
    end
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;    
    SymbolEntry.new(:constant, text)
  ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  return _tmp
end

#_dbl_escapes ⇒ Object

dbl_escapes = (“\"” { ‘“’ } | ”\n“ { ”n“ } | ”\t“ { ”t“ } | ”\\“ { ”\“ })



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# File 'app/cmd_parser.rb', line 915

def _dbl_escapes
  
  _save = self.pos
      while true # choice
    
  _save1 = self.pos
        while true # sequence
          _tmp = match_string("\\\"")
          unless _tmp
            self.pos = _save1
            break
          end
          @result = begin;          '"' ; end
          _tmp = true
          unless _tmp
            self.pos = _save1
          end
          break
        end # end sequence

        break if _tmp
        self.pos = _save
    
  _save2 = self.pos
        while true # sequence
          _tmp = match_string("\\n")
          unless _tmp
            self.pos = _save2
            break
          end
          @result = begin;          "\n" ; end
          _tmp = true
          unless _tmp
            self.pos = _save2
          end
          break
        end # end sequence

        break if _tmp
        self.pos = _save
    
  _save3 = self.pos
        while true # sequence
          _tmp = match_string("\\t")
          unless _tmp
            self.pos = _save3
            break
          end
          @result = begin;          "\t" ; end
          _tmp = true
          unless _tmp
            self.pos = _save3
          end
          break
        end # end sequence

        break if _tmp
        self.pos = _save
    
  _save4 = self.pos
        while true # sequence
          _tmp = match_string("\\\\")
          unless _tmp
            self.pos = _save4
            break
          end
          @result = begin;          "\\" ; end
          _tmp = true
          unless _tmp
            self.pos = _save4
          end
          break
        end # end sequence

        break if _tmp
        self.pos = _save
        break
      end # end choice

  return _tmp
end

#_dbl_not_quote ⇒ Object

dbl_not_quote = (dbl_escapes | dbl_seq)+:ary { ary }



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# File 'app/cmd_parser.rb', line 1142

def _dbl_not_quote
  
  _save = self.pos
      while true # sequence
        _save1 = self.pos
        _ary = []
    
  _save2 = self.pos
        while true # choice
          _tmp = apply(:_dbl_escapes)
          break if _tmp
          self.pos = _save2
          _tmp = apply(:_dbl_seq)
          break if _tmp
          self.pos = _save2
          break
        end # end choice

        if _tmp
            _ary << @result
            while true
                      
  _save3 = self.pos
            while true # choice
              _tmp = apply(:_dbl_escapes)
              break if _tmp
              self.pos = _save3
              _tmp = apply(:_dbl_seq)
              break if _tmp
              self.pos = _save3
              break
            end # end choice

                _ary << @result if _tmp
                break unless _tmp
              end
              _tmp = true
              @result = _ary
            else
              self.pos = _save1
            end
            ary = @result
            unless _tmp
              self.pos = _save
              break
            end
            @result = begin;            ary ; end
            _tmp = true
            unless _tmp
              self.pos = _save
            end
            break
          end # end sequence

  return _tmp
end

#_dbl_seq ⇒ Object

dbl_seq = < /[^\“]+/ > { text }



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# File 'app/cmd_parser.rb', line 1117

def _dbl_seq
  
  _save = self.pos
      while true # sequence
        _text_start = self.pos
        _tmp = scan(/\A(?-mix:[^\\"]+)/)
        if _tmp
          text = get_text(_text_start)
        end
        unless _tmp
          self.pos = _save
          break
        end
        @result = begin;        text ; end
        _tmp = true
        unless _tmp
          self.pos = _save
        end
        break
      end # end sequence

  return _tmp
end

#_dbl_string ⇒ Object

dbl_string = “"” dbl_not_quote:ary “"” { ary.join }



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# File 'app/cmd_parser.rb', line 1200

def _dbl_string
      
  _save = self.pos
          while true # sequence
            _tmp = match_string("\"")
            unless _tmp
              self.pos = _save
              break
            end
            _tmp = apply(:_dbl_not_quote)
            ary = @result
            unless _tmp
              self.pos = _save
              break
            end
            _tmp = match_string("\"")
            unless _tmp
              self.pos = _save
              break
            end
            @result = begin;            ary.join ; end
            _tmp = true
            unless _tmp
              self.pos = _save
            end
            break
          end # end sequence

  return _tmp
end

#_downcase_letter ⇒ Object

downcase_letter = /[a-z]/



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# File 'app/cmd_parser.rb', line 336

def _downcase_letter
  _tmp = scan(/\A(?-mix:[a-z])/)
  return _tmp
end

#_escapes ⇒ Object

escapes = (“\"” { ‘“’ } | ”\n“ { ”n“ } | ”\t“ { ”t“ } | ”\ “ { ” “ } | ”\:“ { ”:“ } | ”\\“ { ”\“ })



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# File 'app/cmd_parser.rb', line 998

def _escapes
  
  _save = self.pos
      while true # choice
    
  _save1 = self.pos
        while true # sequence
          _tmp = match_string("\\\"")
          unless _tmp
            self.pos = _save1
            break
          end
          @result = begin;          '"' ; end
          _tmp = true
          unless _tmp
            self.pos = _save1
          end
          break
        end # end sequence

        break if _tmp
        self.pos = _save
    
  _save2 = self.pos
        while true # sequence
          _tmp = match_string("\\n")
          unless _tmp
            self.pos = _save2
            break
          end
          @result = begin;          "\n" ; end
          _tmp = true
          unless _tmp
            self.pos = _save2
          end
          break
        end # end sequence

        break if _tmp
        self.pos = _save
    
  _save3 = self.pos
        while true # sequence
          _tmp = match_string("\\t")
          unless _tmp
            self.pos = _save3
            break
          end
          @result = begin;          "\t" ; end
          _tmp = true
          unless _tmp
            self.pos = _save3
          end
          break
        end # end sequence

        break if _tmp
        self.pos = _save
    
  _save4 = self.pos
        while true # sequence
          _tmp = match_string("\\ ")
          unless _tmp
            self.pos = _save4
            break
          end
          @result = begin;          " " ; end
          _tmp = true
          unless _tmp
            self.pos = _save4
          end
          break
        end # end sequence

        break if _tmp
        self.pos = _save
    
  _save5 = self.pos
        while true # sequence
          _tmp = match_string("\\:")
          unless _tmp
            self.pos = _save5
            break
          end
          @result = begin;          ":" ; end
          _tmp = true
          unless _tmp
            self.pos = _save5
          end
          break
        end # end sequence

        break if _tmp
        self.pos = _save
    
  _save6 = self.pos
        while true # sequence
          _tmp = match_string("\\\\")
          unless _tmp
            self.pos = _save6
            break
          end
          @result = begin;          "\\" ; end
          _tmp = true
          unless _tmp
            self.pos = _save6
          end
          break
        end # end sequence

        break if _tmp
        self.pos = _save
        break
      end # end choice

  return _tmp
end

#_file_colon_line ⇒ Object

file_colon_line = file_no_colon:file &{ File.exist?(file) } “:” position:pos { Position.new(:file, file, pos.position_type, pos.position) }



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# File 'app/cmd_parser.rb', line 1443

def _file_colon_line
              
  _save = self.pos
                  while true # sequence
                    _tmp = apply(:_file_no_colon)
                    file = @result
                    unless _tmp
                      self.pos = _save
                      break
                    end
                    _save1 = self.pos
                    _tmp = begin;  File.exist?(file) ; end
                    self.pos = _save1
                    unless _tmp
                      self.pos = _save
                      break
                    end
                    _tmp = match_string(":")
                    unless _tmp
                      self.pos = _save
                      break
                    end
                    _tmp = apply(:_position)
                    pos = @result
                    unless _tmp
                      self.pos = _save
                      break
                    end
                    @result = begin;                    
Position.new(:file, file, pos.position_type, pos.position) 
; end
                    _tmp = true
                    unless _tmp
                      self.pos = _save
                    end
                    break
                  end # end sequence

  return _tmp
end

#_file_pos_sep ⇒ Object

file_pos_sep = (sp+ | “:”)



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# File 'app/cmd_parser.rb', line 1321

def _file_pos_sep
          
  _save = self.pos
              while true # choice
                _save1 = self.pos
                _tmp = apply(:_sp)
                if _tmp
                    while true
                                          _tmp = apply(:_sp)
                        break unless _tmp
                      end
                      _tmp = true
                    else
                      self.pos = _save1
                    end
                    break if _tmp
                    self.pos = _save
                    _tmp = match_string(":")
                    break if _tmp
                    self.pos = _save
                    break
                  end # end choice

  return _tmp
end

#_filename ⇒ Object

filename = (dbl_string | not_space_colons)



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# File 'app/cmd_parser.rb', line 1304

def _filename
          
  _save = self.pos
              while true # choice
                _tmp = apply(:_dbl_string)
                break if _tmp
                self.pos = _save
                _tmp = apply(:_not_space_colons)
                break if _tmp
                self.pos = _save
                break
              end # end choice

  return _tmp
end

#_global_identifier ⇒ Object

global_identifier = < “$” (constant_identifier | variable_identifier) > { SymbolEntry.new(:global, text) }



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# File 'app/cmd_parser.rb', line 558

def _global_identifier

  _save = self.pos
  while true # sequence
    _text_start = self.pos

  _save1 = self.pos
    while true # sequence
      _tmp = match_string("$")
      unless _tmp
        self.pos = _save1
        break
      end
  
  _save2 = self.pos
      while true # choice
        _tmp = apply(:_constant_identifier)
        break if _tmp
        self.pos = _save2
        _tmp = apply(:_variable_identifier)
        break if _tmp
        self.pos = _save2
        break
      end # end choice

      unless _tmp
        self.pos = _save1
      end
      break
    end # end sequence

    if _tmp
      text = get_text(_text_start)
    end
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;   
    SymbolEntry.new(:global, text)
  ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  return _tmp
end

#_id_separator ⇒ Object

id_separator = < (“::” | “.”) > { text }



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# File 'app/cmd_parser.rb', line 737

def _id_separator

  _save = self.pos
  while true # sequence
    _text_start = self.pos

  _save1 = self.pos
    while true # choice
      _tmp = match_string("::")
      break if _tmp
      self.pos = _save1
      _tmp = match_string(".")
      break if _tmp
      self.pos = _save1
      break
    end # end choice

    if _tmp
      text = get_text(_text_start)
    end
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;    text ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  return _tmp
end

#_id_symbol ⇒ Object

id_symbol = (letter | “_” | [0-9])



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# File 'app/cmd_parser.rb', line 365

def _id_symbol

  _save = self.pos
  while true # choice
    _tmp = apply(:_letter)
    break if _tmp
    self.pos = _save
    _tmp = match_string("_")
    break if _tmp
    self.pos = _save
    _tmp = get_byte
    if _tmp
        unless _tmp >= 48 and _tmp <= 57
          fail_range('0', '9')
          _tmp = nil
        end
    end
    break if _tmp
    self.pos = _save
    break
  end # end choice

  return _tmp
end

#_identifier ⇒ Object

identifier = (global_identifier | instance_identifier | classvar_identifier | local_identifier)



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# File 'app/cmd_parser.rb', line 714

def _identifier

  _save = self.pos
  while true # choice
    _tmp = apply(:_global_identifier)
    break if _tmp
    self.pos = _save
    _tmp = apply(:_instance_identifier)
    break if _tmp
    self.pos = _save
    _tmp = apply(:_classvar_identifier)
    break if _tmp
    self.pos = _save
    _tmp = apply(:_local_identifier)
    break if _tmp
    self.pos = _save
    break
  end # end choice

  return _tmp
end

#_if_unless ⇒ Object

if_unless = < (“if” | “unless”) > { text }



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# File 'app/cmd_parser.rb', line 1639

def _if_unless
              
  _save = self.pos
                  while true # sequence
                    _text_start = self.pos
                
  _save1 = self.pos
                    while true # choice
                      _tmp = match_string("if")
                      break if _tmp
                      self.pos = _save1
                      _tmp = match_string("unless")
                      break if _tmp
                      self.pos = _save1
                      break
                    end # end choice

                    if _tmp
                      text = get_text(_text_start)
                    end
                    unless _tmp
                      self.pos = _save
                      break
                    end
                    @result = begin;                    text ; end
                    _tmp = true
                    unless _tmp
                      self.pos = _save
                    end
                    break
                  end # end sequence

  return _tmp
end

#_instance_identifier ⇒ Object

instance_identifier = < “@” local_identifier > { SymbolEntry.new(:instance, text) }



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# File 'app/cmd_parser.rb', line 644

def _instance_identifier

  _save = self.pos
  while true # sequence
    _text_start = self.pos

  _save1 = self.pos
    while true # sequence
      _tmp = match_string("@")
      unless _tmp
        self.pos = _save1
        break
      end
      _tmp = apply(:_local_identifier)
      unless _tmp
        self.pos = _save1
      end
      break
    end # end sequence

    if _tmp
      text = get_text(_text_start)
    end
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;   
    SymbolEntry.new(:instance, text)
  ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  return _tmp
end

#_integer ⇒ Object

integer = < /[0-9]+/ > { text.to_i }



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# File 'app/cmd_parser.rb', line 1348

def _integer
              
  _save = self.pos
                  while true # sequence
                    _text_start = self.pos
                    _tmp = scan(/\A(?-mix:[0-9]+)/)
                    if _tmp
                      text = get_text(_text_start)
                    end
                    unless _tmp
                      self.pos = _save
                      break
                    end
                    @result = begin;                    text.to_i ; end
                    _tmp = true
                    unless _tmp
                      self.pos = _save
                    end
                    break
                  end # end sequence

  return _tmp
end

#_internal_class_module_chain ⇒ Object

internal_class_module_chain = (< local_internal_identifier:parent id_separator:sep internal_class_module_chain:child > { SymbolEntry.new(parent.type, text, [parent, child, sep]) } | local_identifier)



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# File 'app/cmd_parser.rb', line 773

def _internal_class_module_chain

  _save = self.pos
  while true # choice

  _save1 = self.pos
    while true # sequence
      _text_start = self.pos
  
  _save2 = self.pos
      while true # sequence
        _tmp = apply(:_local_internal_identifier)
        parent = @result
        unless _tmp
          self.pos = _save2
          break
        end
        _tmp = apply(:_id_separator)
        sep = @result
        unless _tmp
          self.pos = _save2
          break
        end
        _tmp = apply(:_internal_class_module_chain)
        child = @result
        unless _tmp
          self.pos = _save2
        end
        break
      end # end sequence

      if _tmp
        text = get_text(_text_start)
      end
      unless _tmp
        self.pos = _save1
        break
      end
      @result = begin;     
       SymbolEntry.new(parent.type, text, [parent, child, sep])
    ; end
      _tmp = true
      unless _tmp
        self.pos = _save1
      end
      break
    end # end sequence

    break if _tmp
    self.pos = _save
    _tmp = apply(:_local_identifier)
    break if _tmp
    self.pos = _save
    break
  end # end choice

  return _tmp
end

#_letter ⇒ Object

letter = (upcase_letter | downcase_letter)



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# File 'app/cmd_parser.rb', line 348

def _letter

  _save = self.pos
  while true # choice
    _tmp = apply(:_upcase_letter)
    break if _tmp
    self.pos = _save
    _tmp = apply(:_downcase_letter)
    break if _tmp
    self.pos = _save
    break
  end # end choice

  return _tmp
end

#_line_number ⇒ Object

line_number = integer



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# File 'app/cmd_parser.rb', line 1373

def _line_number
                  _tmp = apply(:_integer)
  return _tmp
end

#_list_special_targets ⇒ Object

list_special_targets = < (“.” | “-”) > { text }



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# File 'app/cmd_parser.rb', line 1781

def _list_special_targets
              
  _save = self.pos
                  while true # sequence
                    _text_start = self.pos
                
  _save1 = self.pos
                    while true # choice
                      _tmp = match_string(".")
                      break if _tmp
                      self.pos = _save1
                      _tmp = match_string("-")
                      break if _tmp
                      self.pos = _save1
                      break
                    end # end choice

                    if _tmp
                      text = get_text(_text_start)
                    end
                    unless _tmp
                      self.pos = _save
                      break
                    end
                    @result = begin;                    text ; end
                    _tmp = true
                    unless _tmp
                      self.pos = _save
                    end
                    break
                  end # end sequence

  return _tmp
end

#_list_stmt ⇒ Object

list_stmt = ((list_special_targets | location):loc - integer:int? { List.new(loc, int) } | (list_special_targets | location):loc { List.new(loc, nil) })



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# File 'app/cmd_parser.rb', line 1817

def _list_stmt
              
  _save = self.pos
                  while true # choice
                
  _save1 = self.pos
                    while true # sequence
                  
  _save2 = self.pos
                      while true # choice
                        _tmp = apply(:_list_special_targets)
                        break if _tmp
                        self.pos = _save2
                        _tmp = apply(:_location)
                        break if _tmp
                        self.pos = _save2
                        break
                      end # end choice

                      loc = @result
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      _tmp = apply(:__hyphen_)
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      _save3 = self.pos
                      _tmp = apply(:_integer)
                      int = @result
                      unless _tmp
                        _tmp = true
                        self.pos = _save3
                      end
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      @result = begin;                     
List.new(loc, int)
; end
                      _tmp = true
                      unless _tmp
                        self.pos = _save1
                      end
                      break
                    end # end sequence

                    break if _tmp
                    self.pos = _save
                
  _save4 = self.pos
                    while true # sequence
                  
  _save5 = self.pos
                      while true # choice
                        _tmp = apply(:_list_special_targets)
                        break if _tmp
                        self.pos = _save5
                        _tmp = apply(:_location)
                        break if _tmp
                        self.pos = _save5
                        break
                      end # end choice

                      loc = @result
                      unless _tmp
                        self.pos = _save4
                        break
                      end
                      @result = begin;                     
List.new(loc, nil)
; end
                      _tmp = true
                      unless _tmp
                        self.pos = _save4
                      end
                      break
                    end # end sequence

                    break if _tmp
                    self.pos = _save
                    break
                  end # end choice

  return _tmp
end

#_local_identifier ⇒ Object

local_identifier = (constant_identifier | vm_identifier)



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# File 'app/cmd_parser.rb', line 627

def _local_identifier

  _save = self.pos
  while true # choice
    _tmp = apply(:_constant_identifier)
    break if _tmp
    self.pos = _save
    _tmp = apply(:_vm_identifier)
    break if _tmp
    self.pos = _save
    break
  end # end choice

  return _tmp
end

#_local_internal_identifier ⇒ Object

local_internal_identifier = (constant_identifier | variable_identifier)



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# File 'app/cmd_parser.rb', line 610

def _local_internal_identifier

  _save = self.pos
  while true # choice
    _tmp = apply(:_constant_identifier)
    break if _tmp
    self.pos = _save
    _tmp = apply(:_variable_identifier)
    break if _tmp
    self.pos = _save
    break
  end # end choice

  return _tmp
end

#_location ⇒ Object

location = (position | < filename >:file &{ @file_exists_proc.call(file) } file_pos_sep position:pos { Position.new(:file, file, pos.position_type, pos.position) } | < filename >:file &{ @file_exists_proc.call(file) } { Position.new(:file, file, nil, nil) } | class_module_chain?:fn file_pos_sep position:pos { Position.new(:fn, fn, pos.position_type, pos.position) } | class_module_chain?:fn { Position.new(:fn, fn, nil, nil) })



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# File 'app/cmd_parser.rb', line 1485

def _location
              
  _save = self.pos
                  while true # choice
                    _tmp = apply(:_position)
                    break if _tmp
                    self.pos = _save
                
  _save1 = self.pos
                    while true # sequence
                      _text_start = self.pos
                      _tmp = apply(:_filename)
                      if _tmp
                        text = get_text(_text_start)
                      end
                      file = @result
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      _save2 = self.pos
                      _tmp = begin;  @file_exists_proc.call(file) ; end
                      self.pos = _save2
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      _tmp = apply(:_file_pos_sep)
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      _tmp = apply(:_position)
                      pos = @result
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      @result = begin;                     
    Position.new(:file, file, pos.position_type, pos.position)
  ; end
                      _tmp = true
                      unless _tmp
                        self.pos = _save1
                      end
                      break
                    end # end sequence

                    break if _tmp
                    self.pos = _save
                
  _save3 = self.pos
                    while true # sequence
                      _text_start = self.pos
                      _tmp = apply(:_filename)
                      if _tmp
                        text = get_text(_text_start)
                      end
                      file = @result
                      unless _tmp
                        self.pos = _save3
                        break
                      end
                      _save4 = self.pos
                      _tmp = begin;  @file_exists_proc.call(file) ; end
                      self.pos = _save4
                      unless _tmp
                        self.pos = _save3
                        break
                      end
                      @result = begin;                     
    Position.new(:file, file, nil, nil)
  ; end
                      _tmp = true
                      unless _tmp
                        self.pos = _save3
                      end
                      break
                    end # end sequence

                    break if _tmp
                    self.pos = _save
                
  _save5 = self.pos
                    while true # sequence
                      _save6 = self.pos
                      _tmp = apply(:_class_module_chain)
                      @result = nil unless _tmp
                      unless _tmp
                        _tmp = true
                        self.pos = _save6
                      end
                      fn = @result
                      unless _tmp
                        self.pos = _save5
                        break
                      end
                      _tmp = apply(:_file_pos_sep)
                      unless _tmp
                        self.pos = _save5
                        break
                      end
                      _tmp = apply(:_position)
                      pos = @result
                      unless _tmp
                        self.pos = _save5
                        break
                      end
                      @result = begin;                     
    Position.new(:fn, fn, pos.position_type, pos.position)
  ; end
                      _tmp = true
                      unless _tmp
                        self.pos = _save5
                      end
                      break
                    end # end sequence

                    break if _tmp
                    self.pos = _save
                
  _save7 = self.pos
                    while true # sequence
                      _save8 = self.pos
                      _tmp = apply(:_class_module_chain)
                      @result = nil unless _tmp
                      unless _tmp
                        _tmp = true
                        self.pos = _save8
                      end
                      fn = @result
                      unless _tmp
                        self.pos = _save7
                        break
                      end
                      @result = begin;                     
    Position.new(:fn, fn, nil, nil)
  ; end
                      _tmp = true
                      unless _tmp
                        self.pos = _save7
                      end
                      break
                    end # end sequence

                    break if _tmp
                    self.pos = _save
                    break
                  end # end choice

  return _tmp
end

#_not_space_colon ⇒ Object

not_space_colon = (escapes | < /[^ tn:]/ > { text })



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# File 'app/cmd_parser.rb', line 1232

def _not_space_colon
      
  _save = self.pos
          while true # choice
            _tmp = apply(:_escapes)
            break if _tmp
            self.pos = _save
        
  _save1 = self.pos
            while true # sequence
              _text_start = self.pos
              _tmp = scan(/\A(?-mix:[^ \t\n:])/)
              if _tmp
                text = get_text(_text_start)
              end
              unless _tmp
                self.pos = _save1
                break
              end
              @result = begin;              text ; end
              _tmp = true
              unless _tmp
                self.pos = _save1
              end
              break
            end # end sequence

            break if _tmp
            self.pos = _save
            break
          end # end choice

  return _tmp
end

#_not_space_colons ⇒ Object

not_space_colons = not_space_colon+:ary { ary.join }



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# File 'app/cmd_parser.rb', line 1268

def _not_space_colons
      
  _save = self.pos
          while true # sequence
            _save1 = self.pos
            _ary = []
            _tmp = apply(:_not_space_colon)
            if _tmp
                _ary << @result
                while true
                                  _tmp = apply(:_not_space_colon)
                    _ary << @result if _tmp
                    break unless _tmp
                  end
                  _tmp = true
                  @result = _ary
                else
                  self.pos = _save1
                end
                ary = @result
                unless _tmp
                  self.pos = _save
                  break
                end
                @result = begin;                ary.join ; end
                _tmp = true
                unless _tmp
                  self.pos = _save
                end
                break
              end # end sequence

  return _tmp
end

#_position ⇒ Object

position = (vm_offset | line_number:l { Position.new(nil, nil, :line, l) })



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# File 'app/cmd_parser.rb', line 1408

def _position
              
  _save = self.pos
                  while true # choice
                    _tmp = apply(:_vm_offset)
                    break if _tmp
                    self.pos = _save
                
  _save1 = self.pos
                    while true # sequence
                      _tmp = apply(:_line_number)
                      l = @result
                      unless _tmp
                        self.pos = _save1
                        break
                      end
                      @result = begin;                      
Position.new(nil, nil, :line, l) 
; end
                      _tmp = true
                      unless _tmp
                        self.pos = _save1
                      end
                      break
                    end # end sequence

                    break if _tmp
                    self.pos = _save
                    break
                  end # end choice

  return _tmp
end

#_sp ⇒ Object

sp = /[ t]/



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# File 'app/cmd_parser.rb', line 893

def _sp
  _tmp = scan(/\A(?-mix:[ \t])/)
  return _tmp
end

#_suffix_letter ⇒ Object

suffix_letter = /[=!?]/



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# File 'app/cmd_parser.rb', line 342

def _suffix_letter
  _tmp = scan(/\A(?-mix:[=!?])/)
  return _tmp
end

#_upcase_letter ⇒ Object

upcase_letter = /[A-Z]/



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# File 'app/cmd_parser.rb', line 330

def _upcase_letter
  _tmp = scan(/\A(?-mix:[A-Z])/)
  return _tmp
end

#_variable_identifier ⇒ Object

variable_identifier = < (downcase_letter | “_”) id_symbol* > { SymbolEntry.new(:variable, text) }



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# File 'app/cmd_parser.rb', line 457

def _variable_identifier

  _save = self.pos
  while true # sequence
    _text_start = self.pos

  _save1 = self.pos
    while true # sequence
  
  _save2 = self.pos
      while true # choice
        _tmp = apply(:_downcase_letter)
        break if _tmp
        self.pos = _save2
        _tmp = match_string("_")
        break if _tmp
        self.pos = _save2
        break
      end # end choice

      unless _tmp
        self.pos = _save1
        break
      end
      while true
        _tmp = apply(:_id_symbol)
        break unless _tmp
      end
      _tmp = true
      unless _tmp
        self.pos = _save1
      end
      break
    end # end sequence

    if _tmp
      text = get_text(_text_start)
    end
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;    
    SymbolEntry.new(:variable, text)
  ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  return _tmp
end

#_vm_identifier ⇒ Object

vm_identifier = < (downcase_letter | “_”) id_symbol* suffix_letter? > { SymbolEntry.new(:variable, text) }



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# File 'app/cmd_parser.rb', line 391

def _vm_identifier

  _save = self.pos
  while true # sequence
    _text_start = self.pos

  _save1 = self.pos
    while true # sequence
  
  _save2 = self.pos
      while true # choice
        _tmp = apply(:_downcase_letter)
        break if _tmp
        self.pos = _save2
        _tmp = match_string("_")
        break if _tmp
        self.pos = _save2
        break
      end # end choice

      unless _tmp
        self.pos = _save1
        break
      end
      while true
        _tmp = apply(:_id_symbol)
        break unless _tmp
      end
      _tmp = true
      unless _tmp
        self.pos = _save1
        break
      end
      _save4 = self.pos
      _tmp = apply(:_suffix_letter)
      unless _tmp
        _tmp = true
        self.pos = _save4
      end
      unless _tmp
        self.pos = _save1
      end
      break
    end # end sequence

    if _tmp
      text = get_text(_text_start)
    end
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;    
    SymbolEntry.new(:variable, text)
  ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  return _tmp
end

#_vm_offset ⇒ Object

vm_offset = “@” integer:int { Position.new(nil, nil, :offset, int) }



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# File 'app/cmd_parser.rb', line 1379

def _vm_offset
              
  _save = self.pos
                  while true # sequence
                    _tmp = match_string("@")
                    unless _tmp
                      self.pos = _save
                      break
                    end
                    _tmp = apply(:_integer)
                    int = @result
                    unless _tmp
                      self.pos = _save
                      break
                    end
                    @result = begin;                   
  Position.new(nil, nil, :offset, int)
; end
                    _tmp = true
                    unless _tmp
                      self.pos = _save
                    end
                    break
                  end # end sequence

  return _tmp
end

#add_failure(obj) ⇒ Object 



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# File 'app/cmd_parser.rb', line 110

def add_failure(obj)
  @expected_string = obj
  @failing_offset = @pos if @pos > @failing_offset
end

#apply(rule) ⇒ Object 



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# File 'app/cmd_parser.rb', line 237

def apply(rule)
  if m = @memoizations[rule][@pos]
    m.inc!

    prev = @pos
    @pos = m.pos
    if m.ans.kind_of? LeftRecursive
      m.ans.detected = true
      return nil
    end

    @result = m.result

    return m.ans
  else
    lr = LeftRecursive.new(false)
    m = MemoEntry.new(lr, @pos)
    @memoizations[rule][@pos] = m
    start_pos = @pos

    ans = __send__ rule

    m.move! ans, @pos, @result

    # Don't bother trying to grow the left recursion
    # if it's failing straight away (thus there is no seed)
    if ans and lr.detected
      return grow_lr(rule, start_pos, m)
    else
      return ans
    end

    return ans
  end
end

#current_column(target = pos) ⇒ Object

STANDALONE START



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# File 'app/cmd_parser.rb', line 27

def current_column(target=pos)
  offset = 0
  string.each_line do |line|
    len = line.size
    return (target - offset) if offset + len >= target
    offset += len
  end

  -1
end

#current_line(target = pos) ⇒ Object 



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# File 'app/cmd_parser.rb', line 38

def current_line(target=pos)
  cur_offset = 0
  cur_line = 0

  string.each_line do |line|
    cur_line += 1
    cur_offset += line.size
    return cur_line if cur_offset >= target
  end

  -1
end

#enhance_errors! ⇒ Object 



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# File 'app/cmd_parser.rb', line 200

def enhance_errors!
  extend EnhancedErrors
end

#error_expectation ⇒ Object 



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# File 'app/cmd_parser.rb', line 57

def error_expectation
  error_pos = failing_offset()
  line_no = current_line(error_pos)
  col_no = current_column(error_pos)

  expected = expected_string()

  prefix = nil

  case expected
  when String
    prefix = expected.inspect
  when Range
    prefix = "to be between #{expected.begin} and #{expected.end}"
  when Array
    prefix = "to be one of #{expected.inspect}"
  when nil
    prefix = "anything (no more input)"
  else
    prefix = "unknown"
  end

  return "Expected #{prefix} at line #{line_no}, column #{col_no} (offset #{error_pos})"
end

#fail_range(start, fin) ⇒ Object 



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# File 'app/cmd_parser.rb', line 127

def fail_range(start,fin)
  @pos -= 1

  add_failure Range.new(start, fin)
end

#get_byte ⇒ Object 



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# File 'app/cmd_parser.rb', line 146

def get_byte
  if @pos >= @string.size
    add_failure nil
    return nil
  end

  s = @string.getbyte @pos
  @pos += 1
  s
end

#get_text(start) ⇒ Object 



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# File 'app/cmd_parser.rb', line 97

def get_text(start)
  @string[start..@pos-1]
end

#grow_lr(rule, start_pos, m) ⇒ Object 



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# File 'app/cmd_parser.rb', line 273

def grow_lr(rule, start_pos, m)
  while true
    @pos = start_pos
    @result = m.result

    ans = __send__ rule
    return nil unless ans

    break if @pos <= m.pos

    m.move! ans, @pos, @result
  end

  @result = m.result
  @pos = m.pos
  return m.ans
end

#lines ⇒ Object 



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# File 'app/cmd_parser.rb', line 51

def lines
  lines = []
  string.each_line { |l| lines << l }
  lines
end

#match_string(str) ⇒ Object 



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# File 'app/cmd_parser.rb', line 115

def match_string(str)
  len = str.size
  if @string[pos,len] == str
    @pos += len
    return str
  end

  add_failure(str)

  return nil
end

#parse ⇒ Object 



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# File 'app/cmd_parser.rb', line 204

def parse
  _root ? true : false
end

#scan(reg) ⇒ Object 



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# File 'app/cmd_parser.rb', line 133

def scan(reg)
  if m = reg.match(@string[@pos..-1])
    width = m.end(0)
    @pos += width
    return true
  end

  add_failure reg

  return nil
end

#setup_parser(str, debug = false) ⇒ Object

STANDALONE START



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# File 'app/cmd_parser.rb', line 3

def setup_parser(str, debug=false)
  @string = str
  @pos = 0
  @memoizations = Hash.new { |h,k| h[k] = {} }
  @result = nil
  @failing_offset = -1
  @expected_string = []

  enhance_errors! if debug
end

#show_error(io = STDOUT) ⇒ Object 



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# File 'app/cmd_parser.rb', line 82

def show_error(io=STDOUT)
  error_pos = failing_offset()
  line_no = current_line(error_pos)
  col_no = current_column(error_pos)

  io.puts error_expectation()
  io.puts "Got: #{string[error_pos,1].inspect}"
  line = lines[line_no-1]
  io.puts "=> #{line}"
  io.print(" " * (col_no + 3))
  io.puts "^"
end

#show_pos ⇒ Object 



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# File 'app/cmd_parser.rb', line 101

def show_pos
  width = 10
  if @pos < width
    "#{@pos} (\"#{@string[0,@pos]}\" @ \"#{@string[@pos,width]}\")"
  else
    "#{@pos} (\"... #{@string[@pos - width, width]}\" @ \"#{@string[@pos,width]}\")"
  end
end