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87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef BEAST_UTILITY_CI_CHAR_TRAITS_H_INCLUDED
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#define BEAST_UTILITY_CI_CHAR_TRAITS_H_INCLUDED
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#include <locale>
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#include <string>
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namespace beast {
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struct ci_char_traits : std::char_traits <char>
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{
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static
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bool
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eq (char c1, char c2)
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{
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return ::toupper(c1) ==
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::toupper(c2);
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}
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static
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bool
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ne (char c1, char c2)
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{
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return ::toupper(c1) !=
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::toupper(c2);
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}
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static
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bool
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lt (char c1, char c2)
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{
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return ::toupper(c1) <
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::toupper(c2);
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}
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static
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int
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compare (char const* s1, char const* s2, std::size_t n)
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{
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while (n-- > 0)
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{
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auto const comp (
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int(::toupper(*s1++)) -
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int(::toupper(*s2++)));
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if (comp != 0)
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return comp;
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}
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return 0;
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}
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static
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char const*
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find (char const* s, int n, char a)
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{
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auto const ua (::toupper(a));
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for (;n--;)
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{
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if (::toupper(*s) == ua)
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return s;
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s++;
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}
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return nullptr;
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}
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};
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}
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#endif
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