1 /* vi: set sw=4 ts=4: */
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
7 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
10 //kbuild:lib-y += replace.o
14 unsigned FAST_FUNC
count_strstr(const char *str
, const char *sub
)
16 size_t sub_len
= strlen(sub
);
19 while ((str
= strstr(str
, sub
)) != NULL
) {
26 char* FAST_FUNC
xmalloc_substitute_string(const char *src
, int count
, const char *sub
, const char *repl
)
28 char *buf
, *dst
, *end
;
29 size_t sub_len
= strlen(sub
);
30 size_t repl_len
= strlen(repl
);
32 //dbg_msg("subst(s:'%s',count:%d,sub:'%s',repl:'%s'", src, count, sub, repl);
34 buf
= dst
= xmalloc(strlen(src
) + count
* ((int)repl_len
- (int)sub_len
) + 1);
35 /* we replace each sub with repl */
36 while ((end
= strstr(src
, sub
)) != NULL
) {
37 dst
= mempcpy(dst
, src
, end
- src
);
38 dst
= mempcpy(dst
, repl
, repl_len
);
39 /*src = end + 1; - GNU findutils 4.5.10 doesn't do this... */
40 src
= end
+ sub_len
; /* but this. Try "xargs -Iaa echo aaa" */
43 //dbg_msg("subst9:'%s'", buf);