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/*
* Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "StringUtil.hxx"
#include "StringAPI.hxx"
#include "CharUtil.hxx"
#include "ASCII.hxx"
#include <algorithm>
#include <assert.h>
#include <string.h>
bool
StringStartsWith(const char *haystack, const char *needle)
{
const size_t length = strlen(needle);
return memcmp(haystack, needle, length) == 0;
}
bool
StringEndsWith(const char *haystack, const char *needle)
{
const size_t haystack_length = strlen(haystack);
const size_t needle_length = strlen(needle);
return haystack_length >= needle_length &&
memcmp(haystack + haystack_length - needle_length,
needle, needle_length) == 0;
}
const char *
StringAfterPrefix(const char *string, const char *prefix)
{
#if !CLANG_CHECK_VERSION(3,6)
/* disabled on clang due to -Wtautological-pointer-compare */
assert(string != nullptr);
assert(prefix != nullptr);
#endif
size_t prefix_length = strlen(prefix);
return StringIsEqual(string, prefix, prefix_length)
? string + prefix_length
: nullptr;
}
const char *
FindStringSuffix(const char *p, const char *suffix)
{
const size_t p_length = strlen(p);
const size_t suffix_length = strlen(suffix);
if (p_length < suffix_length)
return nullptr;
const char *q = p + p_length - suffix_length;
return memcmp(q, suffix, suffix_length) == 0
? q
: nullptr;
}
char *
CopyString(char *gcc_restrict dest, const char *gcc_restrict src, size_t size)
{
size_t length = strlen(src);
if (length >= size)
length = size - 1;
char *p = std::copy_n(src, length, dest);
*p = '\0';
return p;
}
const char *
StripLeft(const char *p)
{
while (IsWhitespaceNotNull(*p))
++p;
return p;
}
const char *
StripLeft(const char *p, const char *end)
{
while (p < end && IsWhitespaceOrNull(*p))
++p;
return p;
}
const char *
StripRight(const char *p, const char *end)
{
while (end > p && IsWhitespaceOrNull(end[-1]))
--end;
return end;
}
size_t
StripRight(const char *p, size_t length)
{
while (length > 0 && IsWhitespaceOrNull(p[length - 1]))
--length;
return length;
}
void
StripRight(char *p)
{
size_t old_length = strlen(p);
size_t new_length = StripRight(p, old_length);
p[new_length] = 0;
}
char *
Strip(char *p)
{
p = StripLeft(p);
StripRight(p);
return p;
}
bool
string_array_contains(const char *const* haystack, const char *needle)
{
assert(haystack != nullptr);
assert(needle != nullptr);
for (; *haystack != nullptr; ++haystack)
if (StringEqualsCaseASCII(*haystack, needle))
return true;
return false;
}
void
ToUpperASCII(char *dest, const char *src, size_t size)
{
assert(dest != nullptr);
assert(src != nullptr);
assert(size > 1);
char *const end = dest + size - 1;
do {
char ch = *src++;
if (ch == 0)
break;
*dest++ = ToUpperASCII(ch);
} while (dest < end);
*dest = 0;
}
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