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strconv.h
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C/C++ Source or Header
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2002-09-05
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7KB
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198 lines
///////////////////////////////////////////////////////////////////////////////
// Name: strconv.h
// Purpose: conversion routines for char sets any Unicode
// Author: Robert Roebling, Ove Kaaven
// Modified by:
// Created: 29/01/98
// RCS-ID: $Id: strconv.h,v 1.11 2002/09/04 22:17:09 VS Exp $
// Copyright: (c) 1998 Ove Kaaven, Robert Roebling, Vadim Zeitlin
// Licence: wxWindows license
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_WXSTRCONVH__
#define _WX_WXSTRCONVH__
#if defined(__GNUG__) && !defined(__APPLE__)
#pragma interface "strconv.h"
#endif
#include "wx/defs.h"
#include "wx/wxchar.h"
#include "wx/buffer.h"
#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 WXDLLEXPORT wxMBConv
{
public:
// 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* 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
};
WXDLLEXPORT_DATA(extern wxMBConv) wxConvLibc;
// ----------------------------------------------------------------------------
// wxMBConvUTF7 (for conversion using UTF7 encoding)
// ----------------------------------------------------------------------------
class WXDLLEXPORT 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;
};
WXDLLEXPORT_DATA(extern wxMBConvUTF7) wxConvUTF7;
// ----------------------------------------------------------------------------
// wxMBConvUTF8 (for conversion using UTF8 encoding)
// ----------------------------------------------------------------------------
class WXDLLEXPORT 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;
};
WXDLLEXPORT_DATA(extern wxMBConvUTF8) wxConvUTF8;
#ifdef __WXGTK12__
// ----------------------------------------------------------------------------
// wxMBConvUTF8 (for conversion using GDK's internal converions)
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxMBConvGdk : 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;
};
WXDLLEXPORT_DATA(extern wxMBConvGdk) wxConvGdk;
#endif // wxGTK 1.2
// ----------------------------------------------------------------------------
// wxCSConv (for conversion based on loadable char sets)
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxCharacterSet;
class WXDLLEXPORT wxCSConv : public wxMBConv
{
public:
wxCSConv(const wxChar *charset);
wxCSConv(const wxCSConv& conv);
virtual ~wxCSConv();
wxCSConv& operator=(const wxCSConv& conv);
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;
void Clear() ;
private:
void SetName(const wxChar *charset);
// note that we can't use wxString here because of compilation
// dependencies: we're included from wx/string.h
wxChar *m_name;
wxCharacterSet *m_cset;
bool m_deferred;
};
#define wxConvFile wxConvLocal
WXDLLEXPORT_DATA(extern wxCSConv) wxConvLocal;
WXDLLEXPORT_DATA(extern wxMBConv *) wxConvCurrent;
// ----------------------------------------------------------------------------
// filename conversion macros
// ----------------------------------------------------------------------------
// filenames are multibyte on Unix and probably widechar on Windows?
#if defined(__UNIX__) || defined(__BORLANDC__)
#define wxMBFILES 1
#else
#define wxMBFILES 0
#endif
#if wxMBFILES && wxUSE_UNICODE
#define wxFNCONV(name) wxConvFile.cWX2MB(name)
#define wxFNSTRINGCAST wxMBSTRINGCAST
#else
#define wxFNCONV(name) name
#define wxFNSTRINGCAST WXSTRINGCAST
#endif
#else
// !wxUSE_WCHAR_T
// ----------------------------------------------------------------------------
// stand-ins in absence of wchar_t
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxMBConv
{
public:
const char* cMB2WX(const char *psz) const { return psz; }
const char* cWX2MB(const char *psz) const { return psz; }
};
WXDLLEXPORT_DATA(extern wxMBConv) wxConvLibc, wxConvFile, wxConvLocal;
WXDLLEXPORT_DATA(extern wxMBConv *) wxConvCurrent;
#define wxFNCONV(name) name
#define wxFNSTRINGCAST WXSTRINGCAST
#endif
// wxUSE_WCHAR_T
// ----------------------------------------------------------------------------
// macros for the most common conversions
// ----------------------------------------------------------------------------
#if wxUSE_UNICODE
#define wxConvertWX2MB(s) wxConvCurrent->cWX2MB(s)
#define wxConvertMB2WX(s) wxConvCurrent->cMB2WX(s)
#else // ANSI
// no conversions to do
#define wxConvertWX2MB(s) (s)
#define wxConvertMB2WX(s) (s)
#endif // Unicode/ANSI
#endif
// _WX_WXSTRCONVH__