Class: CmdParse

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

Defined Under Namespace

Classes: Breakpoint, List, MemoEntry, ParseError, Position, RuleInfo, SymbolEntry

Constant Summary collapse

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

Instance Attribute Summary collapse

Class Method 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 7

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

Instance Attribute Details

#failed_rule ⇒ Object (readonly)

Returns the value of attribute failed_rule.



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# File 'app/cmd_parser.rb', line 148

def failed_rule
  @failed_rule
end

#failing_rule_offset ⇒ Object (readonly)

Returns the value of attribute failing_rule_offset.



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

def failing_rule_offset
  @failing_rule_offset
end

#pos ⇒ Object

Returns the value of attribute pos.



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# File 'app/cmd_parser.rb', line 28

def pos
  @pos
end

#result ⇒ Object

Returns the value of attribute result.



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# File 'app/cmd_parser.rb', line 28

def result
  @result
end

#string ⇒ Object (readonly)

Returns the value of attribute string.



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# File 'app/cmd_parser.rb', line 26

def string
  @string
end

Class Method Details

.rule_info(name, rendered) ⇒ Object 



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

def self.rule_info(name, rendered)
  RuleInfo.new(name, rendered)
end

Instance Method Details

#__hyphen_ ⇒ Object

  • sp+



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# File 'app/cmd_parser.rb', line 978

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
  set_failed_rule :__hyphen_ unless _tmp
  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 1848

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

  set_failed_rule :_breakpoint_stmt unless _tmp
  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 1823

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

  set_failed_rule :_breakpoint_stmt_no_condition unless _tmp
  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 910

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

  set_failed_rule :_class_module_chain unless _tmp
  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 758

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

  set_failed_rule :_classvar_identifier unless _tmp
  return _tmp
end

#_condition ⇒ Object

condition = < /.+/ > { text}



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# File 'app/cmd_parser.rb', line 1797

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

  set_failed_rule :_condition unless _tmp
  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 581

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

  set_failed_rule :_constant_identifier unless _tmp
  return _tmp
end

#_dbl_escapes ⇒ Object

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



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# File 'app/cmd_parser.rb', line 995

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

  set_failed_rule :_dbl_escapes unless _tmp
  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 1225

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

  set_failed_rule :_dbl_not_quote unless _tmp
  return _tmp
end

#_dbl_seq ⇒ Object

dbl_seq = < /[^\“]+/ > { text }



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# File 'app/cmd_parser.rb', line 1199

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

  set_failed_rule :_dbl_seq unless _tmp
  return _tmp
end

#_dbl_string ⇒ Object

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



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# File 'app/cmd_parser.rb', line 1284

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

  set_failed_rule :_dbl_string unless _tmp
  return _tmp
end

#_downcase_letter ⇒ Object

downcase_letter = /[a-z]/



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# File 'app/cmd_parser.rb', line 397

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

#_escapes ⇒ Object

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



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# File 'app/cmd_parser.rb', line 1079

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

  set_failed_rule :_escapes unless _tmp
  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 1562

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

  set_failed_rule :_file_colon_line unless _tmp
  return _tmp
end

#_file_pos_sep ⇒ Object

file_pos_sep = (sp+ | “:”)



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# File 'app/cmd_parser.rb', line 1409

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

  set_failed_rule :_file_pos_sep unless _tmp
  return _tmp
end

#_filename ⇒ Object

filename = (dbl_string | not_space_colons)



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# File 'app/cmd_parser.rb', line 1391

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

  set_failed_rule :_filename unless _tmp
  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 627

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

  set_failed_rule :_global_identifier unless _tmp
  return _tmp
end

#_id_separator ⇒ Object

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



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# File 'app/cmd_parser.rb', line 812

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

  set_failed_rule :_id_separator unless _tmp
  return _tmp
end

#_id_symbol ⇒ Object

id_symbol = (letter | “_” | [0-9])



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# File 'app/cmd_parser.rb', line 429

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
    _save1 = self.pos
    _tmp = get_byte
    if _tmp
      unless _tmp >= 48 and _tmp <= 57
        self.pos = _save1
        _tmp = nil
      end
    end
    break if _tmp
    self.pos = _save
    break
  end # end choice

  set_failed_rule :_id_symbol unless _tmp
  return _tmp
end

#_identifier ⇒ Object

identifier = (global_identifier | instance_identifier | classvar_identifier | local_identifier)



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# File 'app/cmd_parser.rb', line 788

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

  set_failed_rule :_identifier unless _tmp
  return _tmp
end

#_if_unless ⇒ Object

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



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# File 'app/cmd_parser.rb', line 1760

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

  set_failed_rule :_if_unless unless _tmp
  return _tmp
end

#_instance_identifier ⇒ Object

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



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# File 'app/cmd_parser.rb', line 716

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

  set_failed_rule :_instance_identifier unless _tmp
  return _tmp
end

#_integer ⇒ Object

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



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# File 'app/cmd_parser.rb', line 1437

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

  set_failed_rule :_integer unless _tmp
  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 849

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

  set_failed_rule :_internal_class_module_chain unless _tmp
  return _tmp
end

#_letter ⇒ Object

letter = (upcase_letter | downcase_letter)



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# File 'app/cmd_parser.rb', line 411

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

  set_failed_rule :_letter unless _tmp
  return _tmp
end

#_line_number ⇒ Object

line_number = integer



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# File 'app/cmd_parser.rb', line 1489

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

#_list_special_targets ⇒ Object

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



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# File 'app/cmd_parser.rb', line 1906

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

  set_failed_rule :_list_special_targets unless _tmp
  return _tmp
end

#_list_stmt ⇒ Object

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



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# File 'app/cmd_parser.rb', line 1943

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(:_sinteger)
      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

  set_failed_rule :_list_stmt unless _tmp
  return _tmp
end

#_local_identifier ⇒ Object

local_identifier = (constant_identifier | vm_identifier)



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# File 'app/cmd_parser.rb', line 698

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

  set_failed_rule :_local_identifier unless _tmp
  return _tmp
end

#_local_internal_identifier ⇒ Object

local_internal_identifier = (constant_identifier | variable_identifier)



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# File 'app/cmd_parser.rb', line 680

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

  set_failed_rule :_local_internal_identifier unless _tmp
  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 1605

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

  set_failed_rule :_location unless _tmp
  return _tmp
end

#_not_space_colon ⇒ Object

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



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# File 'app/cmd_parser.rb', line 1317

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

  set_failed_rule :_not_space_colon unless _tmp
  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 1354

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

  set_failed_rule :_not_space_colons unless _tmp
  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 1526

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

  set_failed_rule :_position unless _tmp
  return _tmp
end

#_sinteger ⇒ Object

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



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# File 'app/cmd_parser.rb', line 1463

def _sinteger

  _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

  set_failed_rule :_sinteger unless _tmp
  return _tmp
end

#_sp ⇒ Object

sp = /[ t]/



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# File 'app/cmd_parser.rb', line 971

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

#_suffix_letter ⇒ Object

suffix_letter = /[=!?]/



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# File 'app/cmd_parser.rb', line 404

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

#_upcase_letter ⇒ Object

upcase_letter = /[A-Z]/



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# File 'app/cmd_parser.rb', line 390

def _upcase_letter
  _tmp = scan(/\A(?-mix:[A-Z])/)
  set_failed_rule :_upcase_letter unless _tmp
  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 524

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

  set_failed_rule :_variable_identifier unless _tmp
  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 457

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

  set_failed_rule :_vm_identifier unless _tmp
  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 1496

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

  set_failed_rule :_vm_offset unless _tmp
  return _tmp
end

#apply(rule) ⇒ Object 



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# File 'app/cmd_parser.rb', line 283

def apply(rule)
  if m = @memoizations[rule][@pos]
    @pos = m.pos
    if !m.set
      m.left_rec = true
      return nil
    end

    @result = m.result

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

    ans = __send__ rule

    lr = m.left_rec

    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
      return grow_lr(rule, nil, start_pos, m)
    else
      return ans
    end

    return ans
  end
end

#apply_with_args(rule, *args) ⇒ Object 



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# File 'app/cmd_parser.rb', line 248

def apply_with_args(rule, *args)
  memo_key = [rule, args]
  if m = @memoizations[memo_key][@pos]
    @pos = m.pos
    if !m.set
      m.left_rec = true
      return nil
    end

    @result = m.result

    return m.ans
  else
    m = MemoEntry.new(nil, @pos)
    @memoizations[memo_key][@pos] = m
    start_pos = @pos

    ans = __send__ rule, *args

    lr = m.left_rec

    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
      return grow_lr(rule, args, start_pos, m)
    else
      return ans
    end

    return ans
  end
end

#current_column(target = pos) ⇒ Object 



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# File 'app/cmd_parser.rb', line 31

def current_column(target=pos)
  if c = string.rindex("\n", target-1)
    return target - c - 1
  end

  target + 1
end

#current_line(target = pos) ⇒ Object 



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# File 'app/cmd_parser.rb', line 39

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

#external_invoke(other, rule, *args) ⇒ Object 



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# File 'app/cmd_parser.rb', line 227

def external_invoke(other, rule, *args)
  old_pos = @pos
  old_string = @string

  @pos = other.pos
  @string = other.string

  begin
    if val = __send__(rule, *args)
      other.pos = @pos
      other.result = @result
    else
      other.set_failed_rule "#{self.class}##{rule}"
    end
    val
  ensure
    @pos = old_pos
    @string = old_string
  end
end

#failure_caret ⇒ Object 



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# File 'app/cmd_parser.rb', line 85

def failure_caret
  l = current_line @failing_rule_offset
  c = current_column @failing_rule_offset

  line = lines[l-1]
  "#{line}\n#{' ' * (c - 1)}^"
end

#failure_character ⇒ Object 



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# File 'app/cmd_parser.rb', line 93

def failure_character
  l = current_line @failing_rule_offset
  c = current_column @failing_rule_offset
  lines[l-1][c-1, 1]
end

#failure_info ⇒ Object 



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# File 'app/cmd_parser.rb', line 73

def failure_info
  l = current_line @failing_rule_offset
  c = current_column @failing_rule_offset

  if @failed_rule.kind_of? Symbol
    info = self.class::Rules[@failed_rule]
    "line #{l}, column #{c}: failed rule '#{info.name}' = '#{info.rendered}'"
  else
    "line #{l}, column #{c}: failed rule '#{@failed_rule}'"
  end
end

#failure_oneline ⇒ Object 



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# File 'app/cmd_parser.rb', line 99

def failure_oneline
  l = current_line @failing_rule_offset
  c = current_column @failing_rule_offset

  char = lines[l-1][c-1, 1]

  if @failed_rule.kind_of? Symbol
    info = self.class::Rules[@failed_rule]
    "@#{l}:#{c} failed rule '#{info.name}', got '#{char}'"
  else
    "@#{l}:#{c} failed rule '#{@failed_rule}', got '#{char}'"
  end
end

#get_byte ⇒ Object 



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# File 'app/cmd_parser.rb', line 171

def get_byte
  if @pos >= @string.size
    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 60

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

#grow_lr(rule, args, start_pos, m) ⇒ Object 



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# File 'app/cmd_parser.rb', line 317

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

    if args
      ans = __send__ rule, *args
    else
      ans = __send__ rule
    end
    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 52

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 150

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

  return nil
end

#parse(rule = nil) ⇒ Object 



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# File 'app/cmd_parser.rb', line 192

def parse(rule=nil)
  # We invoke the rules indirectly via apply
  # instead of by just calling them as methods because
  # if the rules use left recursion, apply needs to
  # manage that.

  if !rule
    apply(:_root)
  else
    method = rule.gsub("-","_hyphen_")
    apply :"_#{method}"
  end
end

#raise_error ⇒ Object

Raises:



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# File 'app/cmd_parser.rb', line 116

def raise_error
  raise ParseError, failure_oneline
end

#scan(reg) ⇒ Object 



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# File 'app/cmd_parser.rb', line 160

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

  return nil
end

#set_failed_rule(name) ⇒ Object 



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# File 'app/cmd_parser.rb', line 141

def set_failed_rule(name)
  if @pos > @failing_rule_offset
    @failed_rule = name
    @failing_rule_offset = @pos
  end
end

#setup_foreign_grammar ⇒ Object

:stopdoc:



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# File 'app/cmd_parser.rb', line 387

def setup_foreign_grammar; end

#setup_parser(str, debug = false) ⇒ Object

Prepares for parsing str. If you define a custom initialize you must call this method before #parse



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# File 'app/cmd_parser.rb', line 15

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

  setup_foreign_grammar
end

#show_error(io = STDOUT) ⇒ Object 



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# File 'app/cmd_parser.rb', line 120

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

  io.puts "On line #{line_no}, column #{col_no}:"

  if @failed_rule.kind_of? Symbol
    info = self.class::Rules[@failed_rule]
    io.puts "Failed to match '#{info.rendered}' (rule '#{info.name}')"
  else
    io.puts "Failed to match rule '#{@failed_rule}'"
  end

  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 64

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