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/*
* Copyright 2009-2020 Max Kellermann <max.kellermann@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "StringStrip.hxx"
#include "CharUtil.hxx"
#include <cstring>
const char *
StripLeft(const char *p) noexcept
{
while (IsWhitespaceNotNull(*p))
++p;
return p;
}
const char *
StripLeft(const char *p, const char *end) noexcept
{
while (p < end && IsWhitespaceOrNull(*p))
++p;
return p;
}
const char *
StripRight(const char *p, const char *end) noexcept
{
while (end > p && IsWhitespaceOrNull(end[-1]))
--end;
return end;
}
std::size_t
StripRight(const char *p, std::size_t length) noexcept
{
while (length > 0 && IsWhitespaceOrNull(p[length - 1]))
--length;
return length;
}
void
StripRight(char *p) noexcept
{
std::size_t old_length = std::strlen(p);
std::size_t new_length = StripRight(p, old_length);
p[new_length] = 0;
}
char *
Strip(char *p) noexcept
{
p = StripLeft(p);
StripRight(p);
return p;
}
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