1 /* @(#)string.c 8.1 (Berkeley) 6/6/93 */
2 /* $NetBSD: string.c,v 1.10 2009/04/14 08:50:06 lukem Exp $ */
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
8 * This code is derived from software contributed to Berkeley by
9 * Edward Wang at The University of California, Berkeley.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 #include "window_string.h"
44 str_cpy(const char *s)
49 str = p = str_alloc(strlen(s) + 1);
58 str_ncpy(const char *s, int n)
66 str = p = str_alloc(n + 1);
80 (void) snprintf(buf, sizeof(buf), "%d", i);
85 str_cat(const char *s1, const char *s2)
91 str = p = str_alloc(strlen(s1) + strlen(s2) + 1);
94 for (q = s1; (*p++ = *q++);)
96 for (q = s2, p--; (*p++ = *q++);)
103 * s can be a prefix of p with at least min characters.
106 str_match(const char *s, const char *p, int min)
108 for (; *s && *p && *s == *p; s++, p++, min--)
110 return *s == *p || (*s == 0 && min <= 0);
119 s = (struct string *) malloc(l + str_offset);
122 if (str_head.s_forw == 0)
123 str_head.s_forw = str_head.s_back = &str_head;
124 s->s_forw = str_head.s_forw;
125 s->s_back = &str_head;
127 s->s_forw->s_back = s;
136 for (s = str_head.s_forw; s != &str_head && s->s_data != str;
141 s->s_back->s_forw = s->s_forw;
142 s->s_forw->s_back = s->s_back;