JezK

Name: test
Start: 2022-11-25
End: 2022-11-25

Edit File: ruby_token.rb

# frozen_string_literal: false
#--
#   irb/ruby-token.rb - ruby tokens
#   	$Release Version: 0.9.5$
#   	$Revision: 11708 $
#   	$Date: 2007-02-12 15:01:19 -0800 (Mon, 12 Feb 2007) $
#   	by Keiju ISHITSUKA(keiju@ruby-lang.org)
#++
# Definitions of all tokens involved in the lexical analysis.
#
# This class is not documented because it is so deep in the internals.

module RDoc::RubyToken
  # :stopdoc:

EXPR_BEG = :EXPR_BEG
  EXPR_MID = :EXPR_MID
  EXPR_END = :EXPR_END
  EXPR_ARG = :EXPR_ARG
  EXPR_FNAME = :EXPR_FNAME
  EXPR_DOT = :EXPR_DOT
  EXPR_CLASS = :EXPR_CLASS

# for ruby 1.4X
  if !defined?(Symbol)
    Symbol = Integer
  end

def set_token_position(line, char)
    @prev_line_no = line
    @prev_char_no = char
  end

class Token
    def initialize(seek, line_no, char_no, text = nil)
      @seek = seek
      @line_no = line_no
      @char_no = char_no
      @text = text
    end

attr_reader :seek
    attr_reader :line_no
    attr_reader :char_no

attr_accessor :text

def ==(other)
      self.class == other.class and
      other.line_no == @line_no and
      other.char_no == @char_no and
      other.text == @text
    end

##
    # Because we're used in contexts that expect to return a token, we set the
    # text string and then return ourselves

def set_text(text)
      @text = text
      self
    end

def inspect # :nodoc:
      klass = self.class.name.split('::').last
      "{%s %d, %d:%d %p}" % [klass, @seek, @line_no, @char_no, @text]
    end

end

class TkNode < Token
    def initialize(seek, line_no, char_no, node = nil)
      super seek, line_no, char_no
      @node = node
    end

attr_reader:node

def ==(other)
      self.class == other.class and
      other.line_no == @line_no and
      other.char_no == @char_no and
      other.node == @node
    end

def set_text text
      @node = text
      self
    end

alias text node

def inspect # :nodoc:
      klass = self.class.name.split('::').last
      "{%s %d, %d:%d %p}" % [klass, @seek, @line_no, @char_no, @node]
    end

end

class TkId < Token
    def initialize(seek, line_no, char_no, name)
      super(seek, line_no, char_no)
      @name = name
    end
    attr_reader:name

def ==(other)
      self.class == other.class and
      other.line_no == @line_no and
      other.char_no == @char_no and
      other.name == @name
    end

def set_text text
      @name = text
      self
    end

alias text name

def inspect # :nodoc:
      klass = self.class.name.split('::').last
      "{%s %d, %d:%d %p}" % [klass, @seek, @line_no, @char_no, @name]
    end

end

class TkKW < TkId
  end

class TkVal < Token
    def initialize(seek, line_no, char_no, value = nil)
      super(seek, line_no, char_no)
      @value = value
    end
    attr_accessor :value

def ==(other)
      self.class == other.class and
      other.line_no == @line_no and
      other.char_no == @char_no and
      other.value == @value
    end

def set_text text
      @value = text
      self
    end

alias text value

def inspect # :nodoc:
      klass = self.class.name.split('::').last
      "{%s %s, %d:%d %p}" % [klass, @seek, @line_no, @char_no, @value]
    end

end

class TkOp < Token
    def initialize(seek, line_no, char_no, name = nil)
      super seek, line_no, char_no
      @name = name
    end

attr_accessor :name

def ==(other)
      self.class == other.class and
      other.line_no == @line_no and
      other.char_no == @char_no and
      other.name == @name
    end

def set_text text
      @name = text
      self
    end

alias text name

def inspect # :nodoc:
      klass = self.class.name.split('::').last
      "{%s %d, %d:%d %p}" % [klass, @seek, @line_no, @char_no, @name]
    end

end

class TkOPASGN < TkOp
    def initialize(seek, line_no, char_no, op)
      super(seek, line_no, char_no)
      op = TkReading2Token[op][0] unless op.kind_of?(Symbol)
      @op = op
      @text = nil
    end

attr_reader:op

def ==(other)
      self.class == other.class and
      other.line_no == @line_no and
      other.char_no == @char_no and
      other.op == @op
    end

def text
      @text ||= "#{TkToken2Reading[op]}="
    end

def inspect # :nodoc:
      klass = self.class.name.split('::').last
      "{%s %d, %d:%d %p}" % [klass, @seek, @line_no, @char_no, @op]
    end

end

class TkUnknownChar < Token
    def initialize(seek, line_no, char_no, name)
      super(seek, line_no, char_no)
      @name = name
    end
    attr_reader:name

def ==(other)
      self.class == other.class and
      other.line_no == @line_no and
      other.char_no == @char_no and
      other.name == @name
    end

def set_text text
      @name = text
      self
    end

alias text name

def inspect # :nodoc:
      klass = self.class.name.split('::').last
      "{%s %d, %d:%d %p}" % [klass, @seek, @line_no, @char_no, @name]
    end

end

class TkError < Token
  end

def Token(token, value = nil)
    value ||= TkToken2Reading[token]

case token
    when String
      if (tk = TkReading2Token[token]).nil?
        IRB.fail TkReading2TokenNoKey, token
      end

tk = Token(tk[0], value)

if tk.kind_of?(TkOp) then
        tk.name = token
      end
    when Symbol
      if (tk = TkSymbol2Token[token]).nil?
        IRB.fail TkSymbol2TokenNoKey, token
      end

tk = Token(tk[0], value)
    else
      if token.instance_method(:initialize).arity == 3 then
        tk = token.new(@prev_seek, @prev_line_no, @prev_char_no)
        tk.set_text value
      else
        tk = token.new(@prev_seek, @prev_line_no, @prev_char_no, value)
      end
    end

tk
  end

TokenDefinitions = [
    [:TkCLASS,      TkKW,  "class",  :EXPR_CLASS],
    [:TkMODULE,     TkKW,  "module", :EXPR_BEG],
    [:TkDEF,        TkKW,  "def",    :EXPR_FNAME],
    [:TkUNDEF,      TkKW,  "undef",  :EXPR_FNAME],
    [:TkBEGIN,      TkKW,  "begin",  :EXPR_BEG],
    [:TkRESCUE,     TkKW,  "rescue", :EXPR_MID],
    [:TkENSURE,     TkKW,  "ensure", :EXPR_BEG],
    [:TkEND,        TkKW,  "end",    :EXPR_END],
    [:TkIF,         TkKW,  "if",     :EXPR_BEG, :TkIF_MOD],
    [:TkUNLESS,     TkKW,  "unless", :EXPR_BEG, :TkUNLESS_MOD],
    [:TkTHEN,       TkKW,  "then",   :EXPR_BEG],
    [:TkELSIF,      TkKW,  "elsif",  :EXPR_BEG],
    [:TkELSE,       TkKW,  "else",   :EXPR_BEG],
    [:TkCASE,       TkKW,  "case",   :EXPR_BEG],
    [:TkWHEN,       TkKW,  "when",   :EXPR_BEG],
    [:TkWHILE,      TkKW,  "while",  :EXPR_BEG, :TkWHILE_MOD],
    [:TkUNTIL,      TkKW,  "until",  :EXPR_BEG, :TkUNTIL_MOD],
    [:TkFOR,        TkKW,  "for",    :EXPR_BEG],
    [:TkBREAK,      TkKW,  "break",  :EXPR_MID],
    [:TkNEXT,       TkKW,  "next",   :EXPR_END],
    [:TkREDO,       TkKW,  "redo",   :EXPR_END],
    [:TkRETRY,      TkKW,  "retry",  :EXPR_END],
    [:TkIN,         TkKW,  "in",     :EXPR_BEG],
    [:TkDO,         TkKW,  "do",     :EXPR_BEG],
    [:TkRETURN,     TkKW,  "return", :EXPR_MID],
    [:TkYIELD,      TkKW,  "yield",  :EXPR_END],
    [:TkSUPER,      TkKW,  "super",  :EXPR_END],
    [:TkSELF,       TkKW,  "self",   :EXPR_END],
    [:TkNIL,        TkKW,  "nil",    :EXPR_END],
    [:TkTRUE,       TkKW,  "true",   :EXPR_END],
    [:TkFALSE,      TkKW,  "false",  :EXPR_END],
    [:TkAND,        TkKW,  "and",    :EXPR_BEG],
    [:TkOR,         TkKW,  "or",     :EXPR_BEG],
    [:TkNOT,        TkKW,  "not",    :EXPR_BEG],
    [:TkIF_MOD,     TkKW],
    [:TkUNLESS_MOD, TkKW],
    [:TkWHILE_MOD,  TkKW],
    [:TkUNTIL_MOD,  TkKW],
    [:TkALIAS,      TkKW,  "alias",    :EXPR_FNAME],
    [:TkDEFINED,    TkKW,  "defined?", :EXPR_END],
    [:TklBEGIN,     TkKW,  "BEGIN",    :EXPR_END],
    [:TklEND,       TkKW,  "END",      :EXPR_END],
    [:Tk__LINE__,   TkKW,  "__LINE__", :EXPR_END],
    [:Tk__FILE__,   TkKW,  "__FILE__", :EXPR_END],

[:TkIDENTIFIER, TkId],
    [:TkFID,        TkId],
    [:TkGVAR,       TkId],
    [:TkCVAR,       TkId],
    [:TkIVAR,       TkId],
    [:TkCONSTANT,   TkId],

[:TkINTEGER,    TkVal],
    [:TkFLOAT,      TkVal],
    [:TkSTRING,     TkVal],
    [:TkHEREDOC,    TkVal],
    [:TkXSTRING,    TkVal],
    [:TkREGEXP,     TkVal],
    [:TkSYMBOL,     TkVal],
    [:TkCHAR,       TkVal],

[:TkDSTRING,    TkNode],
    [:TkDXSTRING,   TkNode],
    [:TkDREGEXP,    TkNode],
    [:TkNTH_REF,    TkNode],
    [:TkBACK_REF,   TkNode],

[:TkUPLUS,      TkOp,   "+@"],
    [:TkUMINUS,     TkOp,   "-@"],
    [:TkPOW,        TkOp,   "**"],
    [:TkCMP,        TkOp,   "<=>"],
    [:TkEQ,         TkOp,   "=="],
    [:TkEQQ,        TkOp,   "==="],
    [:TkNEQ,        TkOp,   "!="],
    [:TkGEQ,        TkOp,   ">="],
    [:TkLEQ,        TkOp,   "<="],
    [:TkANDOP,      TkOp,   "&&"],
    [:TkOROP,       TkOp,   "||"],
    [:TkMATCH,      TkOp,   "=~"],
    [:TkNMATCH,     TkOp,   "!~"],
    [:TkDOT2,       TkOp,   ".."],
    [:TkDOT3,       TkOp,   "..."],
    [:TkAREF,       TkOp,   "[]"],
    [:TkASET,       TkOp,   "[]="],
    [:TkLSHFT,      TkOp,   "<<"],
    [:TkRSHFT,      TkOp,   ">>"],
    [:TkCOLON2,     TkOp,   '::'],
    [:TkCOLON3,     TkOp,   '::'],
    #[:OPASGN,       TkOp],               # +=, -=  etc. #
    [:TkASSOC,      TkOp,   "=>"],
    [:TkQUESTION,   TkOp,   "?"], #?
    [:TkCOLON,      TkOp,   ":"],        #:

[:TkfLPAREN,    Token,  "("], # func( #
    [:TkfLBRACK,    Token,  "["], # func[ #
    [:TkfLBRACE,    Token,  "{"], # func{ #
    [:TkSYMBEG,     Token,  ":"], # :SYMBOL

[:TkAMPER,      TkOp,   "&"],
    [:TkGT,         TkOp,   ">"],
    [:TkLT,         TkOp,   "<"],
    [:TkPLUS,       TkOp,   "+"],
    [:TkSTAR,       TkOp,   "*"],
    [:TkMINUS,      TkOp,   "-"],
    [:TkMULT,       TkOp,   "*"],
    [:TkDIV,        TkOp,   "/"],
    [:TkMOD,        TkOp,   "%"],
    [:TkBITOR,      TkOp,   "|"],
    [:TkBITXOR,     TkOp,   "^"],
    [:TkBITAND,     TkOp,   "&"],
    [:TkBITNOT,     TkOp,   "~"],
    [:TkNOTOP,      TkOp,   "!"],

[:TkBACKQUOTE,  TkOp,   "`"],

[:TkASSIGN,     Token,  "="],
    [:TkDOT,        Token,  "."],
    [:TkLPAREN,     Token,  "("],  #(exp)
    [:TkLBRACK,     Token,  "["],  #[arry]
    [:TkLBRACE,     Token,  "{"],  #{hash}
    [:TkRPAREN,     Token,  ")"],
    [:TkRBRACK,     Token,  "]"],
    [:TkRBRACE,     Token,  "}"],
    [:TkCOMMA,      Token,  ","],
    [:TkSEMICOLON,  Token,  ";"],

[:TkCOMMENT,    TkVal],
    [:TkSPACE,      Token,  " "],
    [:TkNL,         Token,  "\n"],
    [:TkEND_OF_SCRIPT],

[:TkBACKSLASH,  TkUnknownChar,  "\\"],
    [:TkAT,         TkUnknownChar,  "@"],
    [:TkDOLLAR,     TkUnknownChar,  "$"],
  ]

# {reading => token_class}
  # {reading => [token_class, *opt]}
  TkReading2Token = {}
  TkToken2Reading = {}
  TkSymbol2Token = {}

def self.def_token(token_n, super_token = Token, reading = nil, *opts)
    token_n = token_n.id2name if token_n.kind_of?(Symbol)
    if const_defined?(token_n)
      IRB.fail AlreadyDefinedToken, token_n
    end
    token_c = eval("class #{token_n} < #{super_token}; end; #{token_n}")

if reading
      TkToken2Reading[token_c] = reading

return if TkReading2Token[reading]

if opts.empty?
        TkReading2Token[reading] = [token_c]
      else
        TkReading2Token[reading] = [token_c].concat(opts)
      end
    end
    TkSymbol2Token[token_n.intern] = token_c
  end

for defs in TokenDefinitions
    def_token(*defs)
  end

def_token :TkRD_COMMENT, TkCOMMENT

NEWLINE_TOKEN = TkNL.new 0, 0, 0, "\n"

class TkSYMBOL

def to_sym
      @sym ||= text[1..-1].intern
    end

end

# :startdoc:
end

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Edit File: ruby_token.rb

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