gcalctool/ce_parser.h

   1
   2 /*  $Header$
   3  *
   4  *  Copyright (C) 2004-2007 Sami Pietila
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2, or (at your option)
   9  *  any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful, but
  12  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14  *  General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19  *  02111-1307, USA.
  20  */
  21
  22 #ifndef CE_PARSER_H
  23 #define CE_PARSER_H
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <math.h>
  29 #include <assert.h>
  30 #include <errno.h>
  31 #include "calctool.h"
  32 #include "parser.h"
  33 #include "parser_mac.h"
  34
  35 /* CE = Common expression */
  36
  37 extern struct parser_state parser_state;
  38
  39 int ceerror();                   /* dummy definition TODO: this is a douple */
  40 int ceparse();                   /* dummy definition. */
  41 int ceerror(char *s);
  42 int ce_parse(char *expression, int result[MP_SIZE]);
  43 int ce_udf_parse(char *expression);
  44
  45 void reset_ce_tokeniser();
  46
  47 /* UTILITY NEEDED BECAUSE GNU SOURCE NOT ALWAYS AVAILABLE. */
  48
  49 static inline char *
  50 ce_strndup(char *str, int len)
  51 {
  52     char *dup;
  53
  54     if (len < 1) {
  55         return(NULL);
  56     }
  57
  58     dup = malloc(len+1);
  59     memset(dup, 0, len+1);
  60     strncpy(dup, str, len);
  61
  62     return(dup);
  63 }
  64
  65 #endif