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737 lines
29 KiB
C++
737 lines
29 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/strconv.h
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// Purpose: conversion routines for char sets any Unicode
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// Author: Ove Kaaven, Robert Roebling, Vadim Zeitlin
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// Modified by:
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// Created: 29/01/98
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// Copyright: (c) 1998 Ove Kaaven, Robert Roebling
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// (c) 1998-2006 Vadim Zeitlin
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_STRCONV_H_
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#define _WX_STRCONV_H_
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#include "wx/defs.h"
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#include "wx/chartype.h"
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#include "wx/buffer.h"
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#include <stdlib.h>
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class WXDLLIMPEXP_FWD_BASE wxString;
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// the error value returned by wxMBConv methods
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#define wxCONV_FAILED ((size_t)-1)
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// ----------------------------------------------------------------------------
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// wxMBConv (abstract base class for conversions)
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// ----------------------------------------------------------------------------
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// When deriving a new class from wxMBConv you must reimplement ToWChar() and
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// FromWChar() methods which are not pure virtual only for historical reasons,
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// don't let the fact that the existing classes implement MB2WC/WC2MB() instead
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// confuse you.
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//
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// For many encodings you must override GetMaxCharLen().
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//
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// You also have to implement Clone() to allow copying the conversions
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// polymorphically.
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//
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// And you might need to override GetMBNulLen() as well.
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class WXDLLIMPEXP_BASE wxMBConv
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{
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public:
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// The functions doing actual conversion from/to narrow to/from wide
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// character strings.
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//
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// On success, the return value is the length (i.e. the number of
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// characters, not bytes) of the converted string including any trailing
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// L'\0' or (possibly multiple) '\0'(s). If the conversion fails or if
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// there is not enough space for everything, including the trailing NUL
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// character(s), in the output buffer, wxCONV_FAILED is returned.
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//
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// In the special case when dst is NULL (the value of dstLen is ignored
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// then) the return value is the length of the needed buffer but nothing
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// happens otherwise. If srcLen is wxNO_LEN, the entire string, up to and
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// including the trailing NUL(s), is converted, otherwise exactly srcLen
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// bytes are.
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//
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// Typical usage:
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//
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// size_t dstLen = conv.ToWChar(NULL, 0, src);
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// if ( dstLen == wxCONV_FAILED )
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// ... handle error ...
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// wchar_t *wbuf = new wchar_t[dstLen];
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// conv.ToWChar(wbuf, dstLen, src);
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// ... work with wbuf ...
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// delete [] wbuf;
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//
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virtual size_t ToWChar(wchar_t *dst, size_t dstLen,
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const char *src, size_t srcLen = wxNO_LEN) const;
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virtual size_t FromWChar(char *dst, size_t dstLen,
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const wchar_t *src, size_t srcLen = wxNO_LEN) const;
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// Convenience functions for translating NUL-terminated strings: return
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// the buffer containing the converted string or empty buffer if the
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// conversion failed.
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wxWCharBuffer cMB2WC(const char *in) const
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{ return DoConvertMB2WC(in, wxNO_LEN); }
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wxCharBuffer cWC2MB(const wchar_t *in) const
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{ return DoConvertWC2MB(in, wxNO_LEN); }
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wxWCharBuffer cMB2WC(const wxScopedCharBuffer& in) const
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{ return DoConvertMB2WC(in, in.length()); }
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wxCharBuffer cWC2MB(const wxScopedWCharBuffer& in) const
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{ return DoConvertWC2MB(in, in.length()); }
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// Convenience functions for converting strings which may contain embedded
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// NULs and don't have to be NUL-terminated.
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//
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// inLen is the length of the buffer including trailing NUL if any or
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// wxNO_LEN if the input is NUL-terminated.
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//
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// outLen receives, if not NULL, the length of the converted string or 0 if
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// the conversion failed (returning 0 and not -1 in this case makes it
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// difficult to distinguish between failed conversion and empty input but
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// this is done for backwards compatibility). Notice that the rules for
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// whether outLen accounts or not for the last NUL are the same as for
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// To/FromWChar() above: if inLen is specified, outLen is exactly the
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// number of characters converted, whether the last one of them was NUL or
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// not. But if inLen == wxNO_LEN then outLen doesn't account for the last
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// NUL even though it is present.
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wxWCharBuffer
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cMB2WC(const char *in, size_t inLen, size_t *outLen) const;
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wxCharBuffer
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cWC2MB(const wchar_t *in, size_t inLen, size_t *outLen) const;
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// convenience functions for converting MB or WC to/from wxWin default
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#if wxUSE_UNICODE
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wxWCharBuffer cMB2WX(const char *psz) const { return cMB2WC(psz); }
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wxCharBuffer cWX2MB(const wchar_t *psz) const { return cWC2MB(psz); }
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const wchar_t* cWC2WX(const wchar_t *psz) const { return psz; }
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const wchar_t* cWX2WC(const wchar_t *psz) const { return psz; }
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#else // ANSI
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const char* cMB2WX(const char *psz) const { return psz; }
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const char* cWX2MB(const char *psz) const { return psz; }
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wxCharBuffer cWC2WX(const wchar_t *psz) const { return cWC2MB(psz); }
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wxWCharBuffer cWX2WC(const char *psz) const { return cMB2WC(psz); }
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#endif // Unicode/ANSI
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// return the maximum number of bytes that can be required to encode a
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// single character in this encoding, e.g. 4 for UTF-8
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virtual size_t GetMaxCharLen() const { return 1; }
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// this function is used in the implementation of cMB2WC() to distinguish
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// between the following cases:
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//
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// a) var width encoding with strings terminated by a single NUL
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// (usual multibyte encodings): return 1 in this case
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// b) fixed width encoding with 2 bytes/char and so terminated by
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// 2 NULs (UTF-16/UCS-2 and variants): return 2 in this case
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// c) fixed width encoding with 4 bytes/char and so terminated by
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// 4 NULs (UTF-32/UCS-4 and variants): return 4 in this case
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//
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// anything else is not supported currently and -1 should be returned
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virtual size_t GetMBNulLen() const { return 1; }
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// return the maximal value currently returned by GetMBNulLen() for any
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// encoding
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static size_t GetMaxMBNulLen() { return 4 /* for UTF-32 */; }
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// return true if the converter's charset is UTF-8, i.e. char* strings
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// decoded using this object can be directly copied to wxString's internal
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// storage without converting to WC and than back to UTF-8 MB string
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virtual bool IsUTF8() const { return false; }
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// The old conversion functions. The existing classes currently mostly
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// implement these ones but we're in transition to using To/FromWChar()
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// instead and any new classes should implement just the new functions.
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// For now, however, we provide default implementation of To/FromWChar() in
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// this base class in terms of MB2WC/WC2MB() to avoid having to rewrite all
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// the conversions at once.
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//
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// On success, the return value is the length (i.e. the number of
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// characters, not bytes) not counting the trailing NUL(s) of the converted
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// string. On failure, (size_t)-1 is returned. In the special case when
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// outputBuf is NULL the return value is the same one but nothing is
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// written to the buffer.
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//
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// Note that outLen is the length of the output buffer, not the length of
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// the input (which is always supposed to be terminated by one or more
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// NULs, as appropriate for the encoding)!
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virtual size_t MB2WC(wchar_t *out, const char *in, size_t outLen) const;
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virtual size_t WC2MB(char *out, const wchar_t *in, size_t outLen) const;
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// make a heap-allocated copy of this object
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virtual wxMBConv *Clone() const = 0;
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// virtual dtor for any base class
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virtual ~wxMBConv() { }
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private:
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// Common part of single argument cWC2MB() and cMB2WC() overloads above.
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wxCharBuffer DoConvertWC2MB(const wchar_t* pwz, size_t srcLen) const;
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wxWCharBuffer DoConvertMB2WC(const char* psz, size_t srcLen) const;
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};
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// ----------------------------------------------------------------------------
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// wxMBConvLibc uses standard mbstowcs() and wcstombs() functions for
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// conversion (hence it depends on the current locale)
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_BASE wxMBConvLibc : public wxMBConv
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{
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public:
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virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const wxOVERRIDE;
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virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const wxOVERRIDE;
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virtual wxMBConv *Clone() const wxOVERRIDE { return new wxMBConvLibc; }
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virtual bool IsUTF8() const wxOVERRIDE { return wxLocaleIsUtf8; }
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};
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#ifdef __UNIX__
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// ----------------------------------------------------------------------------
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// wxConvBrokenFileNames is made for Unix in Unicode mode when
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// files are accidentally written in an encoding which is not
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// the system encoding. Typically, the system encoding will be
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// UTF8 but there might be files stored in ISO8859-1 on disk.
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_BASE wxConvBrokenFileNames : public wxMBConv
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{
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public:
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wxConvBrokenFileNames(const wxString& charset);
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wxConvBrokenFileNames(const wxConvBrokenFileNames& conv)
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: wxMBConv(),
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m_conv(conv.m_conv ? conv.m_conv->Clone() : NULL)
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{
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}
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virtual ~wxConvBrokenFileNames() { delete m_conv; }
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virtual size_t MB2WC(wchar_t *out, const char *in, size_t outLen) const wxOVERRIDE
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{
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return m_conv->MB2WC(out, in, outLen);
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}
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virtual size_t WC2MB(char *out, const wchar_t *in, size_t outLen) const wxOVERRIDE
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{
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return m_conv->WC2MB(out, in, outLen);
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}
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virtual size_t GetMBNulLen() const wxOVERRIDE
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{
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// cast needed to call a private function
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return m_conv->GetMBNulLen();
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}
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virtual bool IsUTF8() const wxOVERRIDE { return m_conv->IsUTF8(); }
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virtual wxMBConv *Clone() const wxOVERRIDE { return new wxConvBrokenFileNames(*this); }
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private:
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// the conversion object we forward to
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wxMBConv *m_conv;
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wxDECLARE_NO_ASSIGN_CLASS(wxConvBrokenFileNames);
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};
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#endif // __UNIX__
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// ----------------------------------------------------------------------------
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// wxMBConvUTF7 (for conversion using UTF7 encoding)
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_BASE wxMBConvUTF7 : public wxMBConv
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{
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public:
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wxMBConvUTF7() { }
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// compiler-generated copy ctor, assignment operator and dtor are ok
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// (assuming it's ok to copy the shift state -- not really sure about it)
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virtual size_t ToWChar(wchar_t *dst, size_t dstLen,
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const char *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
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virtual size_t FromWChar(char *dst, size_t dstLen,
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const wchar_t *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
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virtual size_t GetMaxCharLen() const wxOVERRIDE { return 4; }
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virtual wxMBConv *Clone() const wxOVERRIDE { return new wxMBConvUTF7; }
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private:
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// UTF-7 decoder/encoder may be in direct mode or in shifted mode after a
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// '+' (and until the '-' or any other non-base64 character)
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struct StateMode
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{
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enum Mode
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{
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Direct, // pass through state
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Shifted // after a '+' (and before '-')
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};
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};
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// the current decoder state: this is only used by ToWChar() if srcLen
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// parameter is not wxNO_LEN, when working on the entire NUL-terminated
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// strings we neither update nor use the state
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class DecoderState : private StateMode
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{
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private:
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// current state: this one is private as we want to enforce the use of
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// ToDirect/ToShifted() methods below
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Mode mode;
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public:
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// the initial state is direct
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DecoderState() { mode = Direct; accum = bit = msb = 0; isLSB = false; }
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// switch to/from shifted mode
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void ToDirect() { mode = Direct; }
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void ToShifted() { mode = Shifted; accum = bit = 0; isLSB = false; }
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bool IsDirect() const { return mode == Direct; }
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bool IsShifted() const { return mode == Shifted; }
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// these variables are only used in shifted mode
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unsigned int accum; // accumulator of the bit we've already got
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unsigned int bit; // the number of bits consumed mod 8
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unsigned char msb; // the high byte of UTF-16 word
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bool isLSB; // whether we're decoding LSB or MSB of UTF-16 word
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};
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DecoderState m_stateDecoder;
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// encoder state is simpler as we always receive entire Unicode characters
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// on input
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class EncoderState : private StateMode
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{
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private:
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Mode mode;
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public:
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EncoderState() { mode = Direct; accum = bit = 0; }
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void ToDirect() { mode = Direct; }
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void ToShifted() { mode = Shifted; accum = bit = 0; }
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bool IsDirect() const { return mode == Direct; }
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bool IsShifted() const { return mode == Shifted; }
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unsigned int accum;
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unsigned int bit;
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};
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EncoderState m_stateEncoder;
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};
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// ----------------------------------------------------------------------------
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// wxMBConvUTF8 (for conversion using UTF8 encoding)
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// ----------------------------------------------------------------------------
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// this is the real UTF-8 conversion class, it has to be called "strict UTF-8"
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// for compatibility reasons: the wxMBConvUTF8 class below also supports lossy
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// conversions if it is created with non default options
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class WXDLLIMPEXP_BASE wxMBConvStrictUTF8 : public wxMBConv
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{
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public:
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// compiler-generated default ctor and other methods are ok
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virtual size_t ToWChar(wchar_t *dst, size_t dstLen,
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const char *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
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virtual size_t FromWChar(char *dst, size_t dstLen,
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const wchar_t *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
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virtual size_t GetMaxCharLen() const wxOVERRIDE { return 4; }
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virtual wxMBConv *Clone() const wxOVERRIDE { return new wxMBConvStrictUTF8(); }
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// NB: other mapping modes are not, strictly speaking, UTF-8, so we can't
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// take the shortcut in that case
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virtual bool IsUTF8() const wxOVERRIDE { return true; }
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};
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class WXDLLIMPEXP_BASE wxMBConvUTF8 : public wxMBConvStrictUTF8
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{
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public:
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enum
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{
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MAP_INVALID_UTF8_NOT = 0,
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MAP_INVALID_UTF8_TO_PUA = 1,
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MAP_INVALID_UTF8_TO_OCTAL = 2
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};
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wxMBConvUTF8(int options = MAP_INVALID_UTF8_NOT) : m_options(options) { }
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virtual size_t ToWChar(wchar_t *dst, size_t dstLen,
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const char *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
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virtual size_t FromWChar(char *dst, size_t dstLen,
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const wchar_t *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
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virtual size_t GetMaxCharLen() const wxOVERRIDE { return 4; }
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virtual wxMBConv *Clone() const wxOVERRIDE { return new wxMBConvUTF8(m_options); }
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// NB: other mapping modes are not, strictly speaking, UTF-8, so we can't
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// take the shortcut in that case
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virtual bool IsUTF8() const wxOVERRIDE { return m_options == MAP_INVALID_UTF8_NOT; }
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private:
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int m_options;
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};
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// ----------------------------------------------------------------------------
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// wxMBConvUTF16Base: for both LE and BE variants
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_BASE wxMBConvUTF16Base : public wxMBConv
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{
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public:
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enum { BYTES_PER_CHAR = 2 };
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virtual size_t GetMBNulLen() const wxOVERRIDE { return BYTES_PER_CHAR; }
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protected:
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// return the length of the buffer using srcLen if it's not wxNO_LEN and
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// computing the length ourselves if it is; also checks that the length is
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// even if specified as we need an entire number of UTF-16 characters and
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// returns wxNO_LEN which indicates error if it is odd
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static size_t GetLength(const char *src, size_t srcLen);
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};
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// ----------------------------------------------------------------------------
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// wxMBConvUTF16LE (for conversion using UTF16 Little Endian encoding)
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_BASE wxMBConvUTF16LE : public wxMBConvUTF16Base
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{
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public:
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virtual size_t ToWChar(wchar_t *dst, size_t dstLen,
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const char *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
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virtual size_t FromWChar(char *dst, size_t dstLen,
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const wchar_t *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
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virtual size_t GetMaxCharLen() const wxOVERRIDE { return 4; }
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virtual wxMBConv *Clone() const wxOVERRIDE { return new wxMBConvUTF16LE; }
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};
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// ----------------------------------------------------------------------------
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// wxMBConvUTF16BE (for conversion using UTF16 Big Endian encoding)
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_BASE wxMBConvUTF16BE : public wxMBConvUTF16Base
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{
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public:
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virtual size_t ToWChar(wchar_t *dst, size_t dstLen,
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const char *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
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virtual size_t FromWChar(char *dst, size_t dstLen,
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const wchar_t *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
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virtual size_t GetMaxCharLen() const wxOVERRIDE { return 4; }
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virtual wxMBConv *Clone() const wxOVERRIDE { return new wxMBConvUTF16BE; }
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};
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// ----------------------------------------------------------------------------
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// wxMBConvUTF32Base: base class for both LE and BE variants
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_BASE wxMBConvUTF32Base : public wxMBConv
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{
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public:
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enum { BYTES_PER_CHAR = 4 };
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virtual size_t GetMBNulLen() const wxOVERRIDE { return BYTES_PER_CHAR; }
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protected:
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// this is similar to wxMBConvUTF16Base method with the same name except
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// that, of course, it verifies that length is divisible by 4 if given and
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// not by 2
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static size_t GetLength(const char *src, size_t srcLen);
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};
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// ----------------------------------------------------------------------------
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// wxMBConvUTF32LE (for conversion using UTF32 Little Endian encoding)
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_BASE wxMBConvUTF32LE : public wxMBConvUTF32Base
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{
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public:
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virtual size_t ToWChar(wchar_t *dst, size_t dstLen,
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const char *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
|
|
virtual size_t FromWChar(char *dst, size_t dstLen,
|
|
const wchar_t *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
|
|
virtual size_t GetMaxCharLen() const wxOVERRIDE { return 4; }
|
|
virtual wxMBConv *Clone() const wxOVERRIDE { return new wxMBConvUTF32LE; }
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxMBConvUTF32BE (for conversion using UTF32 Big Endian encoding)
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_BASE wxMBConvUTF32BE : public wxMBConvUTF32Base
|
|
{
|
|
public:
|
|
virtual size_t ToWChar(wchar_t *dst, size_t dstLen,
|
|
const char *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
|
|
virtual size_t FromWChar(char *dst, size_t dstLen,
|
|
const wchar_t *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
|
|
virtual size_t GetMaxCharLen() const wxOVERRIDE { return 4; }
|
|
virtual wxMBConv *Clone() const wxOVERRIDE { return new wxMBConvUTF32BE; }
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxCSConv (for conversion based on loadable char sets)
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#include "wx/fontenc.h"
|
|
|
|
class WXDLLIMPEXP_BASE wxCSConv : public wxMBConv
|
|
{
|
|
public:
|
|
// we can be created either from charset name or from an encoding constant
|
|
// but we can't have both at once
|
|
wxCSConv(const wxString& charset);
|
|
wxCSConv(wxFontEncoding encoding);
|
|
|
|
wxCSConv(const wxCSConv& conv);
|
|
virtual ~wxCSConv();
|
|
|
|
wxCSConv& operator=(const wxCSConv& conv);
|
|
|
|
virtual size_t ToWChar(wchar_t *dst, size_t dstLen,
|
|
const char *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
|
|
virtual size_t FromWChar(char *dst, size_t dstLen,
|
|
const wchar_t *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
|
|
virtual size_t GetMBNulLen() const wxOVERRIDE;
|
|
|
|
virtual bool IsUTF8() const wxOVERRIDE;
|
|
|
|
virtual wxMBConv *Clone() const wxOVERRIDE { return new wxCSConv(*this); }
|
|
|
|
void Clear();
|
|
|
|
// return true if the conversion could be initialized successfully
|
|
bool IsOk() const;
|
|
|
|
private:
|
|
// common part of all ctors
|
|
void Init();
|
|
|
|
// Creates the conversion to use, called from all ctors to initialize
|
|
// m_convReal.
|
|
wxMBConv *DoCreate() const;
|
|
|
|
// Set the name (may be only called when m_name == NULL), makes copy of
|
|
// the charset string.
|
|
void SetName(const char *charset);
|
|
|
|
// Set m_encoding field respecting the rules below, i.e. making sure it has
|
|
// a valid value if m_name == NULL (thus this should be always called after
|
|
// SetName()).
|
|
//
|
|
// Input encoding may be valid or not.
|
|
void SetEncoding(wxFontEncoding encoding);
|
|
|
|
|
|
// The encoding we use is specified by the two fields below:
|
|
//
|
|
// 1. If m_name != NULL, m_encoding corresponds to it if it's one of
|
|
// encodings we know about (i.e. member of wxFontEncoding) or is
|
|
// wxFONTENCODING_SYSTEM otherwise.
|
|
//
|
|
// 2. If m_name == NULL, m_encoding is always valid, i.e. not one of
|
|
// wxFONTENCODING_{SYSTEM,DEFAULT,MAX}.
|
|
char *m_name;
|
|
wxFontEncoding m_encoding;
|
|
|
|
// The conversion object for our encoding or NULL if we failed to create it
|
|
// in which case we fall back to hard-coded ISO8859-1 conversion.
|
|
wxMBConv *m_convReal;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxWhateverWorksConv: use whatever encoding works for the input
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_BASE wxWhateverWorksConv : public wxMBConv
|
|
{
|
|
public:
|
|
wxWhateverWorksConv()
|
|
{
|
|
}
|
|
|
|
// Try to interpret the string as UTF-8, if it fails fall back to the
|
|
// current locale encoding (wxConvLibc) and if this fails as well,
|
|
// interpret it as wxConvISO8859_1 (which is used because it never fails
|
|
// and this conversion is used when we really, really must produce
|
|
// something on output).
|
|
virtual size_t
|
|
ToWChar(wchar_t *dst, size_t dstLen,
|
|
const char *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
|
|
|
|
// Try to encode the string using the current locale encoding (wxConvLibc)
|
|
// and fall back to UTF-8 (which never fails) if it doesn't work. Note that
|
|
// we never use wxConvISO8859_1 here as we prefer to fall back on UTF-8
|
|
// even for the strings containing only code points representable in 8869-1.
|
|
virtual size_t
|
|
FromWChar(char *dst, size_t dstLen,
|
|
const wchar_t *src, size_t srcLen = wxNO_LEN) const wxOVERRIDE;
|
|
|
|
// Use the value for UTF-8 here to make sure we try to decode up to 4 bytes
|
|
// as UTF-8 before giving up.
|
|
virtual size_t GetMaxCharLen() const wxOVERRIDE { return 4; }
|
|
|
|
virtual wxMBConv *Clone() const wxOVERRIDE
|
|
{
|
|
return new wxWhateverWorksConv();
|
|
}
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// declare predefined conversion objects
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// Note: this macro is an implementation detail (see the comment in
|
|
// strconv.cpp). The wxGet_XXX() and wxGet_XXXPtr() functions shouldn't be
|
|
// used by user code and neither should XXXPtr, use the wxConvXXX macro
|
|
// instead.
|
|
#define WX_DECLARE_GLOBAL_CONV(klass, name) \
|
|
extern WXDLLIMPEXP_DATA_BASE(klass*) name##Ptr; \
|
|
extern WXDLLIMPEXP_BASE klass* wxGet_##name##Ptr(); \
|
|
inline klass& wxGet_##name() \
|
|
{ \
|
|
if ( !name##Ptr ) \
|
|
name##Ptr = wxGet_##name##Ptr(); \
|
|
return *name##Ptr; \
|
|
}
|
|
|
|
|
|
// conversion to be used with all standard functions affected by locale, e.g.
|
|
// strtol(), strftime(), ...
|
|
WX_DECLARE_GLOBAL_CONV(wxMBConv, wxConvLibc)
|
|
#define wxConvLibc wxGet_wxConvLibc()
|
|
|
|
// conversion ISO-8859-1/UTF-7/UTF-8 <-> wchar_t
|
|
WX_DECLARE_GLOBAL_CONV(wxCSConv, wxConvISO8859_1)
|
|
#define wxConvISO8859_1 wxGet_wxConvISO8859_1()
|
|
|
|
WX_DECLARE_GLOBAL_CONV(wxMBConvStrictUTF8, wxConvUTF8)
|
|
#define wxConvUTF8 wxGet_wxConvUTF8()
|
|
|
|
WX_DECLARE_GLOBAL_CONV(wxMBConvUTF7, wxConvUTF7)
|
|
#define wxConvUTF7 wxGet_wxConvUTF7()
|
|
|
|
// conversion used when we may not afford to lose data when outputting Unicode
|
|
// strings (should be avoid in the other direction as it can misinterpret the
|
|
// input encoding)
|
|
WX_DECLARE_GLOBAL_CONV(wxWhateverWorksConv, wxConvWhateverWorks)
|
|
#define wxConvWhateverWorks wxGet_wxConvWhateverWorks()
|
|
|
|
// conversion used for the file names on the systems where they're not Unicode
|
|
// (basically anything except Windows)
|
|
//
|
|
// this is used by all file functions, can be changed by the application
|
|
//
|
|
// by default UTF-8 under Mac OS X and wxConvLibc elsewhere (but it's not used
|
|
// under Windows normally)
|
|
extern WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvFileName;
|
|
|
|
// backwards compatible define
|
|
#define wxConvFile (*wxConvFileName)
|
|
|
|
// the current conversion object, may be set to any conversion, is used by
|
|
// default in a couple of places inside wx (initially same as wxConvLibc)
|
|
extern WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent;
|
|
|
|
// the conversion corresponding to the current locale
|
|
WX_DECLARE_GLOBAL_CONV(wxCSConv, wxConvLocal)
|
|
#define wxConvLocal wxGet_wxConvLocal()
|
|
|
|
// the conversion corresponding to the encoding of the standard UI elements
|
|
//
|
|
// by default this is the same as wxConvLocal but may be changed if the program
|
|
// needs to use a fixed encoding
|
|
extern WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvUI;
|
|
|
|
#undef WX_DECLARE_GLOBAL_CONV
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// endianness-dependent conversions
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
typedef wxMBConvUTF16BE wxMBConvUTF16;
|
|
typedef wxMBConvUTF32BE wxMBConvUTF32;
|
|
#else
|
|
typedef wxMBConvUTF16LE wxMBConvUTF16;
|
|
typedef wxMBConvUTF32LE wxMBConvUTF32;
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// filename conversion macros
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// filenames are multibyte on Unix and widechar on Windows
|
|
#if wxMBFILES && wxUSE_UNICODE
|
|
#define wxFNCONV(name) wxConvFileName->cWX2MB(name)
|
|
#define wxFNSTRINGCAST wxMBSTRINGCAST
|
|
#else
|
|
#if defined(__WXOSX__) && wxMBFILES
|
|
#define wxFNCONV(name) wxConvFileName->cWC2MB( wxConvLocal.cWX2WC(name) )
|
|
#else
|
|
#define wxFNCONV(name) name
|
|
#endif
|
|
#define wxFNSTRINGCAST WXSTRINGCAST
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// macros for the most common conversions
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#if wxUSE_UNICODE
|
|
#define wxConvertWX2MB(s) wxConvCurrent->cWX2MB(s)
|
|
#define wxConvertMB2WX(s) wxConvCurrent->cMB2WX(s)
|
|
|
|
// these functions should be used when the conversions really, really have
|
|
// to succeed (usually because we pass their results to a standard C
|
|
// function which would crash if we passed NULL to it), so these functions
|
|
// always return a valid pointer if their argument is non-NULL
|
|
|
|
inline wxWCharBuffer wxSafeConvertMB2WX(const char *s)
|
|
{
|
|
return wxConvWhateverWorks.cMB2WC(s);
|
|
}
|
|
|
|
inline wxCharBuffer wxSafeConvertWX2MB(const wchar_t *ws)
|
|
{
|
|
return wxConvWhateverWorks.cWC2MB(ws);
|
|
}
|
|
#else // ANSI
|
|
// no conversions to do
|
|
#define wxConvertWX2MB(s) (s)
|
|
#define wxConvertMB2WX(s) (s)
|
|
#define wxSafeConvertMB2WX(s) (s)
|
|
#define wxSafeConvertWX2MB(s) (s)
|
|
#endif // Unicode/ANSI
|
|
|
|
// Macro that indicates the default encoding for converting C strings
|
|
// to wxString. It provides a default value for a const wxMBConv&
|
|
// parameter (i.e. wxConvLibc) unless wxNO_IMPLICIT_WXSTRING_ENCODING
|
|
// is defined.
|
|
//
|
|
// Intended use:
|
|
// wxString(const char *data, ...,
|
|
// const wxMBConv &conv wxSTRING_DEFAULT_CONV_ARG);
|
|
#ifndef wxNO_IMPLICIT_WXSTRING_ENCODING
|
|
#define wxSTRING_DEFAULT_CONV_ARG = wxConvLibc
|
|
#else
|
|
#define wxSTRING_DEFAULT_CONV_ARG
|
|
#endif
|
|
|
|
#endif // _WX_STRCONV_H_
|
|
|