eb482c7d4b
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/trunk/supertuxkart@2128 178a84e3-b1eb-0310-8ba1-8eac791a3b58
77 lines
2.0 KiB
C++
77 lines
2.0 KiB
C++
// $Id$
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//
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// TuxKart - a fun racing game with go-kart
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// Copyright (C) 2004 Matthias Braun <matze@braunis.de>
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// code in this file based on lispreader from Mark Probst
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 3
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#ifndef __LISPLEXER_H__
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#define __LISPLEXER_H__
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namespace lisp
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{
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class Lexer
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{
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public:
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enum TokenType
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{
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TOKEN_EOF,
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TOKEN_OPEN_PAREN,
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TOKEN_CLOSE_PAREN,
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TOKEN_TRANSLATION,
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TOKEN_SYMBOL,
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TOKEN_STRING,
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TOKEN_INTEGER,
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TOKEN_REAL,
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TOKEN_TRUE,
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TOKEN_FALSE
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};
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Lexer(std::istream& stream);
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~Lexer();
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TokenType getNextToken();
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const char* getString() const
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{ return m_token_string; }
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int getLineNumber() const
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{ return m_line_number; }
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private:
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enum
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{
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MAX_TOKEN_LENGTH = 4096,
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LEXER_BUFFER_SIZE = 1024
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};
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inline void nextChar();
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std::istream& m_stream;
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bool m_is_eof;
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int m_line_number;
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char m_buffer[LEXER_BUFFER_SIZE+1];
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char* m_buffer_end;
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char* m_c;
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char m_token_string[MAX_TOKEN_LENGTH + 1];
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int m_token_length;
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};
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} // end of namespace lisp
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#endif
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