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// Copyright (c) 2005, Niels Martin Hansen
// 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 Aegisub Group 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.
//
// Aegisub Project http://www.aegisub.org/
//
// $Id$
/// @file string_codec.cpp
/// @brief Encode and decode strings so they can safely be stored inside fields in SSA/ASS files
/// @ingroup utility
///
// Functions for inline string encoding.
// See header file for details.
#include "config.h"
#include "string_codec.h"
/// @brief DOCME
/// @param input
/// @return
///
wxString inline_string_encode(const wxString &input)
{
const size_t inlen = input.length();
wxString output("");
output.Alloc(inlen);
for (size_t i = 0; i < inlen; i++) {
wxChar c = input[i];
if (c <= 0x1F || c == 0x23 || c == 0x2C || c == 0x3A || c == 0x7C) {
output << wxString::Format("#%02X", c);
} else {
output << c;
}
}
return output;
}
/// @brief DOCME
/// @param input
///
wxString inline_string_decode(const wxString &input)
{
const size_t inlen = input.length();
wxString output("");
output.Alloc(inlen);
size_t i = 0;
while (i < inlen) {
if (input[i] == '#') {
// check if there's actually enough extra characters at the end of the string
if (inlen - i < 3)
break;
wxString charcode = input.Mid(i+1, 2);
long c;
if (charcode.ToLong(&c, 16)) {
output << (wchar_t)c;
}
i += 3;
} else {
output << input[i++];
}
}
return output;
}
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