common/pcheck.h

   1 /*
   2  *  Copyright 2001, 2002 Adrian Thurston <thurston@cs.queensu.ca>
   3  */
   4
   5 /*  This file is part of Ragel.
   6  *
   7  *  Ragel is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  Ragel is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with Ragel; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #ifndef _PCHECK_H
  23 #define _PCHECK_H
  24
  25 class ParamCheck
  26 {
  27 public:
  28         ParamCheck( const char *paramSpec, int argc, const char **argv);
  29
  30         bool check();
  31
  32         const char *paramArg;     /* The argument to the parameter. */
  33         char parameter;     /* The parameter matched. */
  34         enum { match, invalid, noparam } state;
  35
  36         const char *argOffset;    /* If we are reading params inside an
  37                              * arg this points to the offset. */
  38
  39         const char *curArg;       /* Pointer to the current arg. */
  40         int iCurArg;        /* Index to the current arg. */
  41
  42 private:
  43         const char *paramSpec;    /* Parameter spec supplied by the coder. */
  44         int argc;           /* Arguement data from the command line. */
  45         const char **argv;
  46 };
  47
  48 #endif /* _PCHECK_H */