usr.bin/tr/extern.h

   1 /*-
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      @(#)extern.h    8.1 (Berkeley) 6/6/93
  30  * $FreeBSD: head/usr.bin/tr/extern.h 216370 2010-12-11 08:32:16Z joel $
  31  */
  32
  33 #include <limits.h>
  34
  35 #define NCHARS_SB       (UCHAR_MAX + 1) /* Number of single-byte characters. */
  36 #define OOBCH           -1              /* Out of band character value. */
  37
  38 typedef struct {
  39         enum { STRING1, STRING2 } which;
  40         enum { EOS, INFINITE, NORMAL, RANGE, SEQUENCE,
  41                CCLASS, CCLASS_UPPER, CCLASS_LOWER, SET } state;
  42         int             cnt;            /* character count */
  43         wint_t          lastch;         /* last character */
  44         wctype_t        cclass;         /* character class from wctype() */
  45         wint_t          equiv[NCHARS_SB];       /* equivalence set */
  46         wint_t          *set;           /* set of characters */
  47         char            *str;           /* user's string */
  48 } STR;
  49
  50 wint_t   next(STR *);
  51 int charcoll(const void *, const void *);