forked from premiere/premiere-libtorrent
134 lines
3.3 KiB
C++
134 lines
3.3 KiB
C++
|
/*
|
||
|
|
||
|
Copyright (c) 2012, Arvid Norberg
|
||
|
All rights reserved.
|
||
|
|
||
|
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.
|
||
|
* Neither the name of the author nor the names of its
|
||
|
contributors may be used to endorse or promote products derived
|
||
|
from this software without specific prior written permission.
|
||
|
|
||
|
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 COPYRIGHT OWNER 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 "libtorrent/config.hpp"
|
||
|
#include "libtorrent/string_util.hpp"
|
||
|
|
||
|
#include <stdlib.h> // for malloc/free
|
||
|
#include <string.h> // for strcpy/strlen
|
||
|
|
||
|
namespace libtorrent
|
||
|
{
|
||
|
|
||
|
bool is_alpha(char c)
|
||
|
{
|
||
|
return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
|
||
|
}
|
||
|
|
||
|
bool is_digit(char c)
|
||
|
{
|
||
|
return c >= '0' && c <= '9';
|
||
|
}
|
||
|
|
||
|
bool is_print(char c)
|
||
|
{
|
||
|
return c >= 32 && c < 127;
|
||
|
}
|
||
|
|
||
|
bool is_space(char c)
|
||
|
{
|
||
|
const static char* ws = " \t\n\r\f\v";
|
||
|
return strchr(ws, c) != 0;
|
||
|
}
|
||
|
|
||
|
char to_lower(char c)
|
||
|
{
|
||
|
return (c >= 'A' && c <= 'Z') ? c - 'A' + 'a' : c;
|
||
|
}
|
||
|
|
||
|
int split_string(char const** tags, int buf_size, char* in)
|
||
|
{
|
||
|
int ret = 0;
|
||
|
char* i = in;
|
||
|
for (;*i; ++i)
|
||
|
{
|
||
|
if (!is_print(*i) || is_space(*i))
|
||
|
{
|
||
|
*i = 0;
|
||
|
if (ret == buf_size) return ret;
|
||
|
continue;
|
||
|
}
|
||
|
if (i == in || i[-1] == 0)
|
||
|
{
|
||
|
tags[ret++] = i;
|
||
|
}
|
||
|
}
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
bool string_begins_no_case(char const* s1, char const* s2)
|
||
|
{
|
||
|
while (*s1 != 0)
|
||
|
{
|
||
|
if (to_lower(*s1) != to_lower(*s2)) return false;
|
||
|
++s1;
|
||
|
++s2;
|
||
|
}
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
bool string_equal_no_case(char const* s1, char const* s2)
|
||
|
{
|
||
|
while (to_lower(*s1) == to_lower(*s2))
|
||
|
{
|
||
|
if (*s1 == 0) return true;
|
||
|
++s1;
|
||
|
++s2;
|
||
|
}
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
// generate a url-safe random string
|
||
|
void url_random(char* begin, char* end)
|
||
|
{
|
||
|
// http-accepted characters:
|
||
|
// excluding ', since some buggy trackers don't support that
|
||
|
static char const printable[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
||
|
"abcdefghijklmnopqrstuvwxyz-_.!~*()";
|
||
|
|
||
|
// the random number
|
||
|
while (begin != end)
|
||
|
*begin++ = printable[random() % (sizeof(printable)-1)];
|
||
|
}
|
||
|
|
||
|
char* allocate_string_copy(char const* str)
|
||
|
{
|
||
|
if (str == 0) return 0;
|
||
|
char* tmp = (char*)malloc(strlen(str) + 1);
|
||
|
if (tmp == 0) return 0;
|
||
|
strcpy(tmp, str);
|
||
|
return tmp;
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|