Aegisub/aegisub/src/charset_conv.h
Amar Takhar 6ee2f98349 Note: This was done using a script! it's far from perfect but 95% of the work has been done already formatting-wise.
Document all functions, class, struct, union, enum, macro, variable, typedefs.  This isn't the actual document in itself but empty documentation using any old documentation if it was there.

This was done using exuberant ctags to get tag info, then a TCL script to parse/remove old comments and convert them into Doxygen-style.

Some notes:
 * Anything labeled 'DOCME' needs to be documented, @param and @return have been left blank as it would be annoying to delete the 'DOCME' from every one of those.
 * Some multiline comments may have been munged into single line comments
 * Leave the /// comments above global variables with a space, if they're harder to read then we'll be less likey to use them.
 * Enum comments can go after the enumeration itself '[value] /// comment'
 * include/aegisub/*.h haven't been converted yet, this will be done in a later commit
 * Some documentation blocks are in the wrong place, in the .h when it should be in the .cpp, or vice versa.

See http://devel.aegisub.org/wiki/Doxygen for some details on Doxygen and a 'style guide'.

Originally committed to SVN as r3312.
2009-07-29 22:59:22 +00:00

175 lines
4.8 KiB
C++

// Copyright (c) 2009, Thomas Goyne
// 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 charset_conv.h
/// @see charset_conv.cpp
/// @ingroup utility
///
#ifndef AEGISUB_CHARSET_CONV_H
/// DOCME
#define AEGISUB_CHARSET_CONV_H
#include <iconv.h>
#include <wchar.h>
#include <wx/arrstr.h>
#include <wx/thread.h>
#include <wx/string.h>
#include <wx/strconv.h>
#include "aegisub_endian.h"
#if !defined(_LIBICONV_VERSION) || _LIBICONV_VERSION < 0x010A || defined(LIBICONV_PLUG)
/// DOCME
#define ICONV_POSIX
#endif
/// DOCME
/// @class AegisubCSConv
/// @brief DOCME
///
/// DOCME
class AegisubCSConv : public wxMBConv {
public:
// By default, any conversion that would be lossy will fail
// When enableSubst is true, conversions to multibyte with a sufficiently large buffer
// are guaranteed to succeed, with characters dropped or changed as needed to fit the
// string into the target encoding.
AegisubCSConv(const wxChar *mbEncName, bool enableSubst = false);
virtual ~AegisubCSConv();
// wxMBConv implementation; see strconv.h for usage details
virtual size_t ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen = wxNO_LEN) const;
virtual size_t FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen = wxNO_LEN) const;
virtual size_t GetMBNulLen() const;
virtual wxMBConv *Clone() const;
// Get the length (in bytes) of a null-terminated string whose encoding is mbEncName
size_t MBBuffLen(const char *str) const;
// Get a list of support encodings with somewhat user-friendly names
static wxArrayString GetEncodingsList();
// Get a list of all encodings supported by iconv
static wxArrayString GetAllSupportedEncodings();
// Map a user-friendly encoding name to iconv's name
static wxString GetRealEncodingName(wxString name);
protected:
/// DOCME
/// DOCME
iconv_t m2w, w2m;
private:
/// DOCME
wxString wcCharsetName;
/// DOCME
wxString mbCharsetName;
/// DOCME
size_t mbNulLen;
/// DOCME
bool enableSubst;
size_t doConversion(iconv_t cd, char *dst, size_t dstSize, char *src, size_t srcSize) const;
size_t iconvWrapper(iconv_t cd, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft) const;
static void ucToMbFallback(
unsigned int code,
void (*callback) (const char *buf, size_t buflen, void* callback_arg),
void *callback_arg,
void *convPtr);
/// DOCME
char invalidRep[8];
/// DOCME
size_t invalidRepSize;
#ifndef ICONV_POSIX
/// DOCME
iconv_fallbacks fallbacks;
#endif
#if wxUSE_THREADS
/// DOCME
wxMutex iconvMutex;
#endif
};
// Predefined conversion for the current locale. Should be a drop-in replacement for wxConvLocal
extern AegisubCSConv& csConvLocal;
#ifdef HAVE_BIG_ENDIAN
# if SIZEOF_WCHAR_T == 4
/// DOCME
# define WCHAR_T_ENCODING "UTF-32BE"
# elif SIZEOF_WCHAR_T == 2
/// DOCME
# define WCHAR_T_ENCODING "UTF-16BE"
# endif
#elif defined(HAVE_LITTLE_ENDIAN)
# if SIZEOF_WCHAR_T == 4
/// DOCME
# define WCHAR_T_ENCODING "UTF-32LE"
# elif SIZEOF_WCHAR_T == 2
/// DOCME
# define WCHAR_T_ENCODING "UTF-16LE"
# endif
#else
# if SIZEOF_WCHAR_T == 4
/// DOCME
# define WCHAR_T_ENCODING ((Endian::MachineToBig((uint32_t)1) == 1) ? "UTF-32BE" : "UTF-32LE")
# elif SIZEOF_WCHAR_T == 2
/// DOCME
# define WCHAR_T_ENCODING ((Endian::MachineToBig((uint32_t)1) == 1) ? "UTF-16BE" : "UTF-16LE")
# endif
#endif
#endif