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