/* * Copyright (C) 2005  Dizzy  * * xstr is a module trying to offer some high-level string functionality * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */#ifndef INCLUDED_XSTR_TYPES#define INCLUDED_XSTR_TYPEStypedef struct {	unsigned alen, ulen;	char *str;} t_xstr;#define DECLARE_XSTR(var) \	t_xstr var = { 0, 0, NULL };#endif /* INCLUDED_XSTR_TYPES */#ifndef INCLUDED_XSTR_PROTOS#define INCLUDED_XSTR_PROTOS/* for NULL */#include <stdio.h>extern t_xstr* xstr_alloc(void);extern void xstr_free(t_xstr*);extern t_xstr* xstr_cpy_str(t_xstr* dst, const char* src);extern t_xstr* xstr_cat_xstr(t_xstr* dst, const t_xstr* src);extern t_xstr* xstr_cat_str(t_xstr* dst, const char* src);extern t_xstr* xstr_ncat_str(t_xstr* dst, const char* src, int len);extern t_xstr* xstr_cat_char(t_xstr* dst, const char ch);static inline void xstr_init(t_xstr* xstr){	xstr->alen = xstr->ulen = 0;	xstr->str = NULL;}static inline const char* xstr_get_str(t_xstr* xstr){	if (xstr->alen && xstr->ulen) return xstr->str;	return NULL;}static inline unsigned xstr_get_len(t_xstr* xstr){	return xstr->alen ? xstr->ulen : 0;}static inline t_xstr* xstr_clear(t_xstr* xstr){    /* reset the string content, don't touch the allocation space */    xstr->ulen = 0;    return xstr;}#endif /* INCLUDED_STR_PROTOS */