c_cpp/etc/calc/str.h

   1 /*
   2  * str - string list routines
   3  *
   4  * Copyright (C) 1999-2007  David I. Bell
   5  *
   6  * Calc is open software; you can redistribute it and/or modify it under
   7  * the terms of the version 2.1 of the GNU Lesser General Public License
   8  * as published by the Free Software Foundation.
   9  *
  10  * Calc is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General
  13  * Public License for more details.
  14  *
  15  * A copy of version 2.1 of the GNU Lesser General Public License is
  16  * distributed with calc under the filename COPYING-LGPL.  You should have
  17  * received a copy with calc; if not, write to Free Software Foundation, Inc.
  18  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19  *
  20  * @(#) $Revision: 30.1 $
  21  * @(#) $Id: str.h,v 30.1 2007/03/16 11:09:46 chongo Exp $
  22  * @(#) $Source: /usr/local/src/bin/calc/RCS/str.h,v $
  23  *
  24  * Under source code control:   1990/02/15 01:48:36
  25  * File existed as early as:    before 1990
  26  *
  27  * Share and enjoy!  :-)        http://www.isthe.com/chongo/tech/comp/calc/
  28  */
  29
  30
  31 #if !defined(__CALCSTRING_H__)
  32 #define __CALCSTRING_H__
  33
  34
  35 #if defined(CALC_SRC)   /* if we are building from the calc source tree */
  36 # include "zmath.h"
  37 #else
  38 # include <calc/zmath.h>
  39 #endif
  40
  41
  42 struct string {
  43         char *s_str;
  44         size_t s_len;
  45         long s_links;
  46         struct string *s_next;
  47 };
  48
  49 typedef struct string STRING;
  50
  51
  52 typedef struct {
  53         char *h_list;   /* list of strings separated by nulls */
  54         size_t h_used;  /* characters used so far */
  55         size_t h_avail; /* characters available for use */
  56         long h_count;   /* number of strings */
  57 } STRINGHEAD;
  58
  59
  60 E_FUNC void initstr(STRINGHEAD *hp);
  61 E_FUNC char *addstr(STRINGHEAD *hp, char *str);
  62 E_FUNC char *namestr(STRINGHEAD *hp, long n);
  63 E_FUNC int findstr(STRINGHEAD *hp, char *str);
  64 E_FUNC char *charstr(int ch);
  65 E_FUNC char *addliteral(char *str);
  66 E_FUNC long stringindex(char *str1, char *str2);
  67 E_FUNC STRING *stralloc(void);
  68 E_FUNC long addstring(char *str, size_t len);
  69 E_FUNC STRING *charstring(int ch);
  70 E_FUNC STRING *makestring(char *str);
  71 E_FUNC STRING *makenewstring(char *str);
  72 E_FUNC STRING *findstring(long index);
  73 E_FUNC STRING *slink(STRING *);
  74 E_FUNC void sfree(STRING *);
  75 E_FUNC void fitstring(char *, long, long);
  76 E_FUNC void strprint(STRING *);
  77 E_FUNC void showstrings(void);
  78 E_FUNC void showliterals(void);
  79 EXTERN STRING _nullstring_;
  80
  81
  82 #endif /* !__CALCSTRING_H__ */