C++ (Cpp) revstrpbrk示例

示例#1

文件： chars.c 项目： AaronDP/nano_adbshell

/* This function is equivalent to strpbrk() for multibyte strings,
 * except in that it scans the string in reverse, starting at
 * rev_start. */
char *mbrevstrpbrk(const char *s, const char *accept, const char
	*rev_start)
{
    assert(s != NULL && accept != NULL && rev_start != NULL);

#ifdef ENABLE_UTF8
    if (use_utf8) {
	bool begin_line = FALSE;

	while (!begin_line) {
	    const char *q = (*rev_start == '\0') ? NULL :
		mbstrchr(accept, rev_start);

	    if (q != NULL)
		return (char *)rev_start;

	    if (rev_start == s)
		begin_line = TRUE;
	    else
		rev_start = s + move_mbleft(s, rev_start - s);
	}

	return NULL;
    } else
#endif
	return revstrpbrk(s, accept, rev_start);
}

示例#2

/* This function is equivalent to strpbrk() for multibyte strings,
 * except in that it scans the string in reverse, starting at rev_start. */
char *mbrevstrpbrk(const char *s, const char *accept, const char
	*rev_start)
{
    assert(s != NULL && accept != NULL && rev_start != NULL);

#ifdef ENABLE_UTF8
    if (use_utf8) {
	if (*rev_start == '\0') {
	    if (rev_start == s)
		return NULL;
	    rev_start = s + move_mbleft(s, rev_start - s);
	}

	while (TRUE) {
	    if (mbstrchr(accept, rev_start) != NULL)
		return (char *)rev_start;

	    /* If we've reached the head of the string, we found nothing. */
	    if (rev_start == s)
		return NULL;

	    rev_start = s + move_mbleft(s, rev_start - s);
	}
    } else
#endif
	return revstrpbrk(s, accept, rev_start);
}