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1 /***************************************************************************
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2 * Copyright (C) 2005 by 510 Software Group *
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3 * *
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4 * *
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5 * This program is free software; you can redistribute it and/or modify *
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6 * it under the terms of the GNU General Public License as published by *
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7 * the Free Software Foundation; either version 2 of the License, or *
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8 * (at your option) any later version. *
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9 * *
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10 * This program is distributed in the hope that it will be useful, *
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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13 * GNU General Public License for more details. *
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14 * *
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15 * You should have received a copy of the GNU General Public License *
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16 * along with this program; if not, write to the *
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17 * Free Software Foundation, Inc., *
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18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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19 ***************************************************************************/
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20
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21
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22
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23 using namespace std;
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24
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25 struct ltstr {
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26 bool operator()(char* s1, char* s2) const {
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27 return strcmp(s1, s2) < 0;
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28 }
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29 };
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30
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31 typedef list<ifstream *> stream_list;
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32 typedef list<char *> string_list;
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33 typedef set<char *, ltstr> string_set;
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34 typedef list<int> line_list;
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35
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36 class TOKEN {
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37 stream_list streams;
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38 string_list filenames;
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39 string_set filenamess;
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40 line_list linenumbers;
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41 string_list pending_tokens;
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42 string_set *include_files;
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43 bool pushed;
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44 u_char pushed_char;
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45
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46 void pop();
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47 bool next_char(u_char &c);
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48 void push_char(u_char c);
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49
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50 public:
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51 TOKEN(char *fn, string_set *includes);
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52 ~TOKEN();
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5
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53 bool include(char *fn);
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54 char *next(); // return next token
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55 int nextint();
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56 void skipeol(); // skip to eol
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57 void push(char *token) {pending_tokens.push_front(token);};
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58 const char *cur_fn() {return filenames.empty() ? "" : filenames.front();};
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59 int cur_line() {return linenumbers.empty() ? 0 : linenumbers.front();};
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60 void token_error(const char *err);
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61 void token_error(const char *fmt, int d, const char *s);
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62 void token_error(const char *fmt, const char *t, const char *h);
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63 void token_error(const char *want, const char *have);
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64 void token_error();
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1
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65 };
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66
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