RubyToken (Module)

In: rdoc/parsers/parse_rb.rb

Definitions of all tokens involved in the lexical analysis

Methods

Token   def_token   set_token_position  

Constants

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
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_END], [: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], [:TkIVAR, TkId], [:TkCONSTANT, TkId], [:TkINTEGER, TkVal], [:TkFLOAT, TkVal], [:TkSTRING, TkVal], [:TkXSTRING, TkVal], [:TkREGEXP, TkVal], [:TkCOMMENT, TkVal], [:TkDSTRING, TkNode], [:TkDXSTRING, TkNode], [:TkDREGEXP, TkNode], [:TkNTH_REF, TkId], [:TkBACK_REF, TkId], [: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], # func( # [:TkfLBRACK], # func[ # [:TkfLBRACE], # func{ # [:TkSTAR], # *arg [:TkAMPER], # &arg # [:TkSYMBOL, TkId], # :SYMBOL [:TkSYMBEG, TkId], [:TkGT, TkOp, ">"], [:TkLT, TkOp, "<"], [:TkPLUS, 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, ";"], [:TkRD_COMMENT], [:TkSPACE], [:TkNL], [:TkEND_OF_SCRIPT], [:TkBACKSLASH, TkUnknownChar, "\\"], [:TkAT, TkUnknownChar, "@"], [:TkDOLLAR, TkUnknownChar, "\$"], #" ]
TkReading2Token = {}
  {reading => token_class} {reading => [token_class, *opt]}
TkSymbol2Token = {}
NEWLINE_TOKEN = TkNL.new(0,0)

Public Class methods

def_token(token_n, super_token = Token, reading = nil, *opts)

[Source]

# File rdoc/parsers/parse_rb.rb, line 271
  def RubyToken.def_token(token_n, super_token = Token, reading = nil, *opts)
    token_n = token_n.id2name unless token_n.kind_of?(String)
    if RubyToken.const_defined?(token_n)
      IRB.fail AlreadyDefinedToken, token_n
    end

    token_c =  Class.new super_token
    RubyToken.const_set token_n, token_c
#    token_c.inspect

 
    if reading
      if TkReading2Token[reading]
        IRB.fail TkReading2TokenDuplicateError, token_n, reading
      end
      if opts.empty?
        TkReading2Token[reading] = [token_c]
      else
        TkReading2Token[reading] = [token_c].concat(opts)
      end
    end
    TkSymbol2Token[token_n.intern] = token_c

    if token_c <= TkOp
      token_c.class_eval %{
        def self.op_name; "#{reading}"; end
      }
    end
  end

Public Instance methods

Token(token, value = nil)

[Source]

# File rdoc/parsers/parse_rb.rb, line 113
  def Token(token, value = nil)
    tk = nil
    case token
    when String, Symbol
      source = token.kind_of?(String) ? TkReading2Token : TkSymbol2Token
      if (tk = source[token]).nil?
        IRB.fail TkReading2TokenNoKey, token
      end
      tk = Token(tk[0], value) 
    else 
      tk = if (token.ancestors & [TkId, TkVal, TkOPASGN, TkUnknownChar]).empty?
             token.new(@prev_line_no, @prev_char_no)
           else
             token.new(@prev_line_no, @prev_char_no, value)
           end
    end
    tk
  end
set_token_position(line, char)

[Source]

# File rdoc/parsers/parse_rb.rb, line 108
  def set_token_position(line, char)
    @prev_line_no = line
    @prev_char_no = char
  end

[Validate]