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/*
* string - string list routines
*
* Copyright (C) 1999-2006 David I. Bell
*
* Calc is open software; you can redistribute it and/or modify it under
* the terms of the version 2.1 of the GNU Lesser General Public License
* as published by the Free Software Foundation.
*
* Calc is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
* Public License for more details.
*
* A copy of version 2.1 of the GNU Lesser General Public License is
* distributed with calc under the filename COPYING-LGPL. You should have
* received a copy with calc; if not, write to Free Software Foundation, Inc.
* 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* @(#) $Revision: 29.7 $
* @(#) $Id: string.h,v 29.7 2006/08/20 15:01:30 chongo Exp $
* @(#) $Source: /usr/local/src/cmd/calc/RCS/string.h,v $
*
* Under source code control: 1990/02/15 01:48:36
* File existed as early as: before 1990
*
* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
*/
#if !defined(__CALCSTRING_H__)
#define __CALCSTRING_H__
#if defined(CALC_SRC) /* if we are building from the calc source tree */
# include "zmath.h"
#else
# include <calc/zmath.h>
#endif
struct string {
char *s_str;
size_t s_len;
long s_links;
struct string *s_next;
};
typedef struct string STRING;
typedef struct {
char *h_list; /* list of strings separated by nulls */
size_t h_used; /* characters used so far */
size_t h_avail; /* characters available for use */
long h_count; /* number of strings */
} STRINGHEAD;
extern void initstr(STRINGHEAD *hp);
extern char *addstr(STRINGHEAD *hp, char *str);
extern char *namestr(STRINGHEAD *hp, long n);
extern int findstr(STRINGHEAD *hp, char *str);
extern char *charstr(int ch);
extern char *addliteral(char *str);
extern long stringindex(char *str1, char *str2);
extern STRING *stralloc(void);
extern long addstring(char *str, size_t len);
extern STRING *charstring(int ch);
extern STRING *makestring(char *str);
extern STRING *makenewstring(char *str);
extern STRING *findstring(long index);
extern STRING *slink(STRING *);
extern void sfree(STRING *);
extern void fitstring(char *, long, long);
extern void strprint(STRING *);
extern void showstrings(void);
extern void showliterals(void);
extern STRING _nullstring_;
#endif /* !__CALCSTRING_H__ */
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