include/cset.h

   1 /*@
   2  * Copyright (c) 2014 - 2017 Steffen (Daode) Nurpmeso <steffen@sdaoden.eu>.
   3  *
   4  * Copyright (C) 1989 - 1992 Free Software Foundation, Inc.
   5  *   Written by James Clark (jjc@jclark.com)
   6  *
   7  * This is free software; you can redistribute it and/or modify it under
   8  * the terms of the GNU General Public License as published by the Free
   9  * Software Foundation; either version 2, or (at your option) any later
  10  * version.
  11  *
  12  * This is distributed in the hope that it will be useful, but WITHOUT ANY
  13  * WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15  * for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with groff; see the file COPYING.  If not, write to the Free Software
  19  * Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA.
  20  */
  21 #ifndef _CSET_H
  22 #define _CSET_H
  23
  24 #include "config.h"
  25
  26 #include <limits.h>
  27
  28 enum cset_builtin { CSET_BUILTIN };
  29
  30 class cset
  31 {
  32   friend class cset_init;
  33
  34   char v[UCHAR_MAX +1];
  35   void clear();
  36
  37 public:
  38   cset();
  39   cset(cset_builtin);
  40   cset(const char *);
  41   cset(const unsigned char *);
  42   int operator()(unsigned char) const;
  43
  44   cset &operator|=(const cset &);
  45   cset &operator|=(unsigned char);
  46 };
  47
  48 inline int cset::operator()(unsigned char c) const
  49 {
  50   return v[c];
  51 }
  52
  53 inline cset &cset::operator|=(unsigned char c)
  54 {
  55   v[c] = 1;
  56   return *this;
  57 }
  58
  59 extern cset csalpha;
  60 extern cset csupper;
  61 extern cset cslower;
  62 extern cset csdigit;
  63 extern cset csxdigit;
  64 extern cset csspace;
  65 extern cset cspunct;
  66 extern cset csalnum;
  67 extern cset csprint;
  68 extern cset csgraph;
  69 extern cset cscntrl;
  70
  71 static class cset_init { /* FIXME oh my god.. injection initializers!! */
  72   static int initialised;
  73 public:
  74   cset_init();
  75 } _cset_init;
  76
  77 #endif // _CSET_H
  78 // s-it2-mode