///////////////////////////////////////////////////////////////////////////////
// Name: strconv.h
// Purpose: conversion routines for char sets any Unicode
-// Author: Robert Roebling, Ove Kaaven
+// Author: Ove Kaaven, Robert Roebling, Vadim Zeitlin
// Modified by:
// Created: 29/01/98
// RCS-ID: $Id$
-// Copyright: (c) 1998 Ove Kaaven, Robert Roebling, Vadim Zeitlin
-// Licence: wxWindows license
+// Copyright: (c) 1998 Ove Kaaven, Robert Roebling
+// (c) 1998-2006 Vadim Zeitlin
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
-#ifndef _WX_WXSTRCONVH__
-#define _WX_WXSTRCONVH__
-
-#ifdef __GNUG__
- #pragma interface "strconv.h"
-#endif
+#ifndef _WX_STRCONV_H_
+#define _WX_STRCONV_H_
#include "wx/defs.h"
-#include "wx/wxchar.h"
+#include "wx/chartype.h"
#include "wx/buffer.h"
+#ifdef __DIGITALMARS__
+#include "typeinfo.h"
+#endif
+
+#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
+# undef __BSEXCPT__
+#endif
+
#include <stdlib.h>
#if wxUSE_WCHAR_T
-//---------------------------------------------------------------------------
-// wxMBConv (base class for conversions, using libc conversion itself)
-//---------------------------------------------------------------------------
+class WXDLLIMPEXP_FWD_BASE wxString;
+
+// the error value returned by wxMBConv methods
+#define wxCONV_FAILED ((size_t)-1)
+
+// the default value for some length parameters meaning that the string is
+// NUL-terminated
+#define wxNO_LEN ((size_t)-1)
+
+// ----------------------------------------------------------------------------
+// wxMBConv (abstract base class for conversions)
+// ----------------------------------------------------------------------------
+
+// When deriving a new class from wxMBConv you must reimplement ToWChar() and
+// FromWChar() methods which are not pure virtual only for historical reasons,
+// don't let the fact that the existing classes implement MB2WC/WC2MB() instead
+// confuse you.
+//
+// You also have to implement Clone() to allow copying the conversions
+// polymorphically.
+//
+// And you might need to override GetMBNulLen() as well.
+class WXDLLIMPEXP_BASE wxMBConv
+{
+public:
+ // The functions doing actual conversion from/to narrow to/from wide
+ // character strings.
+ //
+ // On success, the return value is the length (i.e. the number of
+ // characters, not bytes) of the converted string including any trailing
+ // L'\0' or (possibly multiple) '\0'(s). If the conversion fails or if
+ // there is not enough space for everything, including the trailing NUL
+ // character(s), in the output buffer, wxCONV_FAILED is returned.
+ //
+ // In the special case when dstLen is 0 (outputBuf may be NULL then) the
+ // return value is the length of the needed buffer but nothing happens
+ // otherwise. If srcLen is wxNO_LEN, the entire string, up to and
+ // including the trailing NUL(s), is converted, otherwise exactly srcLen
+ // bytes are.
+ //
+ // Typical usage:
+ //
+ // size_t dstLen = conv.ToWChar(NULL, 0, src);
+ // if ( dstLen != wxCONV_FAILED )
+ // ... handle error ...
+ // wchar_t *wbuf = new wchar_t[dstLen];
+ // conv.ToWChar(wbuf, dstLen, src);
+ //
+ 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;
+
+
+ // Convenience functions for translating NUL-terminated strings: returns
+ // the buffer containing the converted string or NULL pointer if the
+ // conversion failed.
+ const wxWCharBuffer cMB2WC(const char *in) const;
+ const wxCharBuffer cWC2MB(const wchar_t *in) const;
+
+ // Convenience functions for converting strings which may contain embedded
+ // NULs and don't have to be NUL-terminated.
+ //
+ // inLen is the length of the buffer including trailing NUL if any: if the
+ // last 4 bytes of the buffer are all NULs, these functions are more
+ // efficient as they avoid copying the string, but otherwise a copy is made
+ // internally which could be quite bad for (very) long strings.
+ //
+ // outLen receives, if not NULL, the length of the converted string or 0 if
+ // the conversion failed (returning 0 and not -1 in this case makes it
+ // difficult to distinguish between failed conversion and empty input but
+ // this is done for backwards compatibility)
+ const wxWCharBuffer
+ cMB2WC(const char *in, size_t inLen, size_t *outLen) const;
+ const wxCharBuffer
+ cWC2MB(const wchar_t *in, size_t inLen, size_t *outLen) const;
+
+ // convenience functions for converting MB or WC to/from wxWin default
+#if wxUSE_UNICODE
+ const wxWCharBuffer cMB2WX(const char *psz) const { return cMB2WC(psz); }
+ const wxCharBuffer cWX2MB(const wchar_t *psz) const { return cWC2MB(psz); }
+ const wchar_t* cWC2WX(const wchar_t *psz) const { return psz; }
+ const wchar_t* cWX2WC(const wchar_t *psz) const { return psz; }
+#else // ANSI
+ const char* cMB2WX(const char *psz) const { return psz; }
+ const char* cWX2MB(const char *psz) const { return psz; }
+ const wxCharBuffer cWC2WX(const wchar_t *psz) const { return cWC2MB(psz); }
+ const wxWCharBuffer cWX2WC(const char *psz) const { return cMB2WC(psz); }
+#endif // Unicode/ANSI
+
+ // this function is used in the implementation of cMB2WC() to distinguish
+ // between the following cases:
+ //
+ // a) var width encoding with strings terminated by a single NUL
+ // (usual multibyte encodings): return 1 in this case
+ // b) fixed width encoding with 2 bytes/char and so terminated by
+ // 2 NULs (UTF-16/UCS-2 and variants): return 2 in this case
+ // c) fixed width encoding with 4 bytes/char and so terminated by
+ // 4 NULs (UTF-32/UCS-4 and variants): return 4 in this case
+ //
+ // anything else is not supported currently and -1 should be returned
+ virtual size_t GetMBNulLen() const { return 1; }
+
+ // return the maximal value currently returned by GetMBNulLen() for any
+ // encoding
+ static size_t GetMaxMBNulLen() { return 4 /* for UTF-32 */; }
+
+#if wxUSE_UNICODE_UTF8
+ // return true if the converter's charset is UTF-8, i.e. char* strings
+ // decoded using this object can be directly copied to wxString's internal
+ // storage without converting to WC and than back to UTF-8 MB string
+ virtual bool IsUTF8() const { return false; }
+#endif
-class WXDLLEXPORT wxMBConv
+ // The old conversion functions. The existing classes currently mostly
+ // implement these ones but we're in transition to using To/FromWChar()
+ // instead and any new classes should implement just the new functions.
+ // For now, however, we provide default implementation of To/FromWChar() in
+ // this base class in terms of MB2WC/WC2MB() to avoid having to rewrite all
+ // the conversions at once.
+ //
+ // On success, the return value is the length (i.e. the number of
+ // characters, not bytes) not counting the trailing NUL(s) of the converted
+ // string. On failure, (size_t)-1 is returned. In the special case when
+ // outputBuf is NULL the return value is the same one but nothing is
+ // written to the buffer.
+ //
+ // Note that outLen is the length of the output buffer, not the length of
+ // the input (which is always supposed to be terminated by one or more
+ // NULs, as appropriate for the encoding)!
+ virtual size_t MB2WC(wchar_t *out, const char *in, size_t outLen) const;
+ virtual size_t WC2MB(char *out, const wchar_t *in, size_t outLen) const;
+
+
+ // make a heap-allocated copy of this object
+ virtual wxMBConv *Clone() const = 0;
+
+ // virtual dtor for any base class
+ virtual ~wxMBConv();
+};
+
+// ----------------------------------------------------------------------------
+// wxMBConvLibc uses standard mbstowcs() and wcstombs() functions for
+// conversion (hence it depends on the current locale)
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxMBConvLibc : public wxMBConv
{
public:
+ virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
+ virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;
- // the actual conversion takes place here
- virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
- virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
-
- // No longer inline since BC++ complains.
- const wxWCharBuffer cMB2WC(const char *psz) const;
- const wxCharBuffer cWC2MB(const wchar_t *psz) const;
-#if wxUSE_UNICODE
- const wxWCharBuffer cMB2WX(const char *psz) const { return cMB2WC(psz); }
- const wxCharBuffer cWX2MB(const wchar_t *psz) const { return cWC2MB(psz); }
- const wchar_t* cWC2WX(const wchar_t *psz) const { return psz; }
- const wchar_t* cMB2WC(const wchar_t *psz) const { return psz; }
-#else
- const char* cMB2WX(const char *psz) const { return psz; }
- const char* cWX2MB(const char *psz) const { return psz; }
- const wxCharBuffer cWC2WX(const wchar_t *psz) const { return cWC2MB(psz); }
- const wxWCharBuffer cWX2WC(const char *psz) const { return cMB2WC(psz); }
+ virtual wxMBConv *Clone() const { return new wxMBConvLibc; }
+
+#if wxUSE_UNICODE_UTF8
+ virtual bool IsUTF8() const { return wxLocaleIsUtf8; }
#endif
};
-WXDLLEXPORT_DATA(extern wxMBConv) wxConvLibc;
+#ifdef __UNIX__
-//---------------------------------------------------------------------------
-// wxMBConvFile (for conversion to filenames)
-//---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+// wxConvBrokenFileNames is made for Unix in Unicode mode when
+// files are accidentally written in an encoding which is not
+// the system encoding. Typically, the system encoding will be
+// UTF8 but there might be files stored in ISO8859-1 on disk.
+// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxMBConvFile: public wxMBConv
+class WXDLLIMPEXP_BASE wxConvBrokenFileNames : public wxMBConv
{
public:
- virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
- virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
+ wxConvBrokenFileNames(const wxString& charset);
+ wxConvBrokenFileNames(const wxConvBrokenFileNames& conv)
+ : wxMBConv(),
+ m_conv(conv.m_conv ? conv.m_conv->Clone() : NULL)
+ {
+ }
+ virtual ~wxConvBrokenFileNames() { delete m_conv; }
+
+ virtual size_t MB2WC(wchar_t *out, const char *in, size_t outLen) const
+ {
+ return m_conv->MB2WC(out, in, outLen);
+ }
+
+ virtual size_t WC2MB(char *out, const wchar_t *in, size_t outLen) const
+ {
+ return m_conv->WC2MB(out, in, outLen);
+ }
+
+ virtual size_t GetMBNulLen() const
+ {
+ // cast needed to call a private function
+ return m_conv->GetMBNulLen();
+ }
+
+#if wxUSE_UNICODE_UTF8
+ virtual bool IsUTF8() const { return m_conv->IsUTF8(); }
+#endif
+
+ virtual wxMBConv *Clone() const { return new wxConvBrokenFileNames(*this); }
+
+private:
+ // the conversion object we forward to
+ wxMBConv *m_conv;
+
+ DECLARE_NO_ASSIGN_CLASS(wxConvBrokenFileNames)
};
-WXDLLEXPORT_DATA(extern wxMBConvFile) wxConvFile;
+#endif // __UNIX__
-//---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
// wxMBConvUTF7 (for conversion using UTF7 encoding)
-//---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxMBConvUTF7: public wxMBConv
+class WXDLLIMPEXP_BASE wxMBConvUTF7 : public wxMBConv
{
public:
- virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
- virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
-};
+ virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
+ virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;
-WXDLLEXPORT_DATA(extern wxMBConvUTF7) wxConvUTF7;
+ virtual wxMBConv *Clone() const { return new wxMBConvUTF7; }
+};
-//---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
// wxMBConvUTF8 (for conversion using UTF8 encoding)
-//---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxMBConvUTF8: public wxMBConv
+class WXDLLIMPEXP_BASE wxMBConvUTF8 : public wxMBConv
{
public:
- virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
- virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
+ // FIXME-UTF8: split this class into multiple classes, one strict and
+ // other lossy (PUA, OCTAL mappings)
+ enum
+ {
+ MAP_INVALID_UTF8_NOT = 0,
+ MAP_INVALID_UTF8_TO_PUA = 1,
+ MAP_INVALID_UTF8_TO_OCTAL = 2
+ };
+
+ wxMBConvUTF8(int options = MAP_INVALID_UTF8_NOT) : m_options(options) { }
+ virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
+ virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;
+
+ virtual wxMBConv *Clone() const { return new wxMBConvUTF8(m_options); }
+
+#if wxUSE_UNICODE_UTF8
+ // NB: other mapping modes are not, strictly speaking, UTF-8, so we can't
+ // take the shortcut in that case
+ virtual bool IsUTF8() const { return m_options == MAP_INVALID_UTF8_NOT; }
+#endif
+
+private:
+ int m_options;
};
-WXDLLEXPORT_DATA(extern wxMBConvUTF8) wxConvUTF8;
+// ----------------------------------------------------------------------------
+// wxMBConvUTF16Base: for both LE and BE variants
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxMBConvUTF16Base : public wxMBConv
+{
+public:
+ enum { BYTES_PER_CHAR = 2 };
-#ifdef __WXGTK12__
-//---------------------------------------------------------------------------
-// wxMBConvUTF8 (for conversion using GDK's internal converions)
-//---------------------------------------------------------------------------
+ virtual size_t GetMBNulLen() const { return BYTES_PER_CHAR; }
-class WXDLLEXPORT wxMBConvGdk: public wxMBConv
+protected:
+ // return the length of the buffer using srcLen if it's not wxNO_LEN and
+ // computing the length ourselves if it is; also checks that the length is
+ // even if specified as we need an entire number of UTF-16 characters and
+ // returns wxNO_LEN which indicates error if it is odd
+ static size_t GetLength(const char *src, size_t srcLen);
+};
+
+// ----------------------------------------------------------------------------
+// wxMBConvUTF16LE (for conversion using UTF16 Little Endian encoding)
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxMBConvUTF16LE : public wxMBConvUTF16Base
{
public:
- virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
- virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
+ 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 wxMBConv *Clone() const { return new wxMBConvUTF16LE; }
};
-WXDLLEXPORT_DATA(extern wxMBConvGdk) wxConvGdk;
-#endif
+// ----------------------------------------------------------------------------
+// wxMBConvUTF16BE (for conversion using UTF16 Big Endian encoding)
+// ----------------------------------------------------------------------------
-//---------------------------------------------------------------------------
-// wxCSConv (for conversion based on laodable char sets)
-//---------------------------------------------------------------------------
+class WXDLLIMPEXP_BASE wxMBConvUTF16BE : public wxMBConvUTF16Base
+{
+public:
+ 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 wxMBConv *Clone() const { return new wxMBConvUTF16BE; }
+};
-class wxCharacterSet;
+// ----------------------------------------------------------------------------
+// wxMBConvUTF32Base: base class for both LE and BE variants
+// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxCSConv: public wxMBConv
+class WXDLLIMPEXP_BASE wxMBConvUTF32Base : public wxMBConv
+{
+public:
+ enum { BYTES_PER_CHAR = 4 };
+
+ virtual size_t GetMBNulLen() const { return BYTES_PER_CHAR; }
+
+protected:
+ // this is similar to wxMBConvUTF16Base method with the same name except
+ // that, of course, it verifies that length is divisible by 4 if given and
+ // not by 2
+ static size_t GetLength(const char *src, size_t srcLen);
+};
+
+// ----------------------------------------------------------------------------
+// wxMBConvUTF32LE (for conversion using UTF32 Little Endian encoding)
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxMBConvUTF32LE : public wxMBConvUTF32Base
{
-private:
- wxChar *m_name;
- wxCharacterSet *m_cset;
- bool m_deferred;
- void SetName(const wxChar *charset);
-
public:
- wxCSConv(const wxChar *charset);
- virtual ~wxCSConv();
- void LoadNow();
- virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
- virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
+ 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 wxMBConv *Clone() const { return new wxMBConvUTF32LE; }
};
-WXDLLEXPORT_DATA(extern wxCSConv) wxConvLocal;
-#define wxConv_local wxConvLocal
+// ----------------------------------------------------------------------------
+// wxMBConvUTF32BE (for conversion using UTF32 Big Endian encoding)
+// ----------------------------------------------------------------------------
-WXDLLEXPORT_DATA(extern wxMBConv *) wxConvCurrent;
-#define wxConv_current wxConvCurrent
+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;
+ virtual size_t FromWChar(char *dst, size_t dstLen,
+ const wchar_t *src, size_t srcLen = wxNO_LEN) const;
+ virtual wxMBConv *Clone() const { return new wxMBConvUTF32BE; }
+};
-//---------------------------------------------------------------------------
-// filename conversion macros
-//---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+// wxCSConv (for conversion based on loadable char sets)
+// ----------------------------------------------------------------------------
-// filenames are multibyte on Unix and probably widechar on Windows?
-#if defined(__UNIX__) || defined(__BORLANDC__)
-#define wxMBFILES 1
-#else
-#define wxMBFILES 0
+#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;
+ virtual size_t FromWChar(char *dst, size_t dstLen,
+ const wchar_t *src, size_t srcLen = wxNO_LEN) const;
+ virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
+ virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;
+ virtual size_t GetMBNulLen() const;
+
+#if wxUSE_UNICODE_UTF8
+ virtual bool IsUTF8() const;
#endif
-#if wxMBFILES
-#define wxFNCONV(name) wxConvFile.cWX2MB(name)
-#define FNSTRINGCAST MBSTRINGCAST
+ virtual wxMBConv *Clone() const { return new wxCSConv(*this); }
+
+ void Clear();
+
+ // return true if the conversion could be initilized successfully
+ bool IsOk() const;
+
+private:
+ // common part of all ctors
+ void Init();
+
+ // creates m_convReal if necessary
+ void CreateConvIfNeeded() const;
+
+ // do create m_convReal (unconditionally)
+ wxMBConv *DoCreate() const;
+
+ // set the name (may be only called when m_name == NULL), makes copy of
+ // charset string
+ void SetName(const char *charset);
+
+
+ // note that we can't use wxString here because of compilation
+ // dependencies: we're included from wx/string.h
+ char *m_name;
+ wxFontEncoding m_encoding;
+
+ // use CreateConvIfNeeded() before accessing m_convReal!
+ wxMBConv *m_convReal;
+ bool m_deferred;
+};
+
+
+// ----------------------------------------------------------------------------
+// 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(wxMBConvUTF8, wxConvUTF8)
+#define wxConvUTF8 wxGet_wxConvUTF8()
+
+WX_DECLARE_GLOBAL_CONV(wxMBConvUTF7, wxConvUTF7)
+#define wxConvUTF7 wxGet_wxConvUTF7()
+
+// 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
-#define wxFNCONV(name) name
-#define FNSTRINGCAST WXSTRINGCAST
+ 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
- // !wxUSE_WCHAR_T
+ #define wxFNCONV(name) name
+#endif
+ #define wxFNSTRINGCAST WXSTRINGCAST
+#endif
+
+#else // !wxUSE_WCHAR_T
-//---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
// stand-ins in absence of wchar_t
-//---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxMBConv
+class WXDLLIMPEXP_BASE wxMBConv
{
public:
- const char* cMB2WX(const char *psz) const { return psz; }
- const char* cWX2MB(const char *psz) const { return psz; }
+ const char* cMB2WX(const char *psz) const { return psz; }
+ const char* cWX2MB(const char *psz) const { return psz; }
};
-WXDLLEXPORT_DATA(extern wxMBConv) wxConvLibc, wxConvFile;
-WXDLLEXPORT_DATA(extern wxMBConv *) wxConvCurrent;
+
+#define wxConvFile wxConvLocal
+
+extern WXDLLIMPEXP_DATA_BASE(wxMBConv) wxConvLibc,
+ wxConvLocal,
+ wxConvISO8859_1,
+ wxConvUTF8;
+extern WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent;
#define wxFNCONV(name) name
-#define FNSTRINGCAST WXSTRINGCAST
+#define wxFNSTRINGCAST WXSTRINGCAST
#endif
// wxUSE_WCHAR_T
-#endif
- // _WX_WXSTRCONVH__
+// ----------------------------------------------------------------------------
+// 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
+
+ // this function safety is achieved by trying wxConvLibc first, wxConvUTF8
+ // next if it fails and, finally, wxConvISO8859_1 which always succeeds
+ extern WXDLLIMPEXP_BASE wxWCharBuffer wxSafeConvertMB2WX(const char *s);
+
+ // this function uses wxConvLibc and wxConvUTF8(MAP_INVALID_UTF8_TO_OCTAL)
+ // if it fails
+ extern WXDLLIMPEXP_BASE wxCharBuffer wxSafeConvertWX2MB(const wchar_t *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
+
+#endif // _WX_STRCONV_H_
projects / wxWidgets.git / blobdiff