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token.h
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1997-03-07
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/*
Copyright (C) 1996 John W. Eaton
This file is part of Octave.
Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
Octave is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#if !defined (octave_token_h)
#define octave_token_h 1
#if defined (__GNUG__)
#pragma interface
#endif
#include <string>
class symbol_record;
class
token
{
public:
enum token_type
{
generic_token,
string_token,
double_token,
ettype_token,
pttype_token,
sym_rec_token,
};
enum end_tok_type
{
simple_end,
for_end,
function_end,
if_end,
switch_end,
while_end,
try_catch_end,
unwind_protect_end,
};
enum plot_tok_type
{
replot = 1,
two_dee = 2,
three_dee = 3,
};
token (int l = -1, int c = -1);
token (const string& s, int l = -1, int c = -1);
token (double d, const string& s = string (), int l = -1, int c = -1);
token (end_tok_type t, int l = -1, int c = -1);
token (plot_tok_type t, int l = -1, int c = -1);
token (symbol_record *s, int l = -1, int c = -1);
~token (void);
int line (void) { return line_num; }
int column (void) { return column_num; }
string text (void);
double number (void);
end_tok_type ettype (void);
plot_tok_type pttype (void);
symbol_record *sym_rec (void);
string text_rep (void);
private:
token (const token& tok);
token& operator = (const token& tok);
int line_num;
int column_num;
token_type type_tag;
union
{
string *str;
double num;
end_tok_type et;
plot_tok_type pt;
symbol_record *sr;
};
string orig_text;
};
#endif
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/