6 * GiNaC Copyright (C) 1999-2017 Johannes Gutenberg University Mainz, Germany
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
37 /// last character read from stream
39 /// identifier and number tokens are stored here
46 lexer(std::istream* in = 0, std::ostream* out = 0, std::ostream* err = 0);
50 void switch_input(std::istream* in);
64 /// Symbolic name of the token (for error reporting)
65 std::string tok2str(const int tok) const;
70 #endif // ndef GINAC_LEXER_H