/* * 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: 29.6 $ * @(#) $Id: string.h,v 29.6 2006/05/19 15:26:10 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 #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 showstrings(void); extern void showliterals(void); extern STRING _nullstring_; #endif /* !__CALCSTRING_H__ */