39 lines
937 B
C
39 lines
937 B
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* skip_whitespace implementation for busybox
|
|
*
|
|
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
|
*/
|
|
#include "libbb.h"
|
|
|
|
char* FAST_FUNC skip_whitespace(const char *s)
|
|
{
|
|
/* In POSIX/C locale (the only locale we care about: do we REALLY want
|
|
* to allow Unicode whitespace in, say, .conf files? nuts!)
|
|
* isspace is only these chars: "\t\n\v\f\r" and space.
|
|
* "\t\n\v\f\r" happen to have ASCII codes 9,10,11,12,13.
|
|
* Use that.
|
|
*/
|
|
while (*s == ' ' || (unsigned char)(*s - 9) <= (13 - 9))
|
|
s++;
|
|
|
|
return (char *) s;
|
|
}
|
|
|
|
char* FAST_FUNC skip_non_whitespace(const char *s)
|
|
{
|
|
while (*s != '\0' && *s != ' ' && (unsigned char)(*s - 9) > (13 - 9))
|
|
s++;
|
|
|
|
return (char *) s;
|
|
}
|
|
|
|
char* FAST_FUNC skip_dev_pfx(const char *tty_name)
|
|
{
|
|
if (is_prefixed_with(tty_name, "/dev/"))
|
|
tty_name += 5;
|
|
return (char*)tty_name;
|
|
}
|