[wxWidgets.git] / include / wx / unichar.h

///////////////////////////////////////////////////////////////////////////////
// Name:        wx/unichar.h
// Purpose:     wxUniChar and wxUniCharRef classes
// Author:      Vaclav Slavik
// Created:     2007-03-19
// RCS-ID:      $Id$
// Copyright:   (c) 2007 REA Elektronik GmbH
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

#ifndef _WX_UNICHAR_H_
#define _WX_UNICHAR_H_

#include "wx/defs.h"
#include "wx/chartype.h"
#include "wx/stringimpl.h"

// wint_t is just a typedef for wchar_t for many old compilers but for modern
// ones it's a separate type and we must provide a conversion to it to allow
// passing wxUniChar[Ref] to functions taking wint_t such as iswalnum() &c
#if (defined(__GNUC__) && \
        !defined(__DARWIN__) && !defined(__OS2__) && !defined(__DOS__)) || \
    (defined(__VISUALC__) && defined(_NATIVE_WCHAR_T_DEFINED))
    #define wxWINT_T_IS_SEPARATE_TYPE
#endif

// helper macro for doing something dependent on whether wint_t is or isn't a
// typedef inside another macro
#ifdef wxWINT_T_IS_SEPARATE_TYPE
    #define wxIF_WINT_T_TYPE(x) x
#else // !wxWINT_T_IS_SEPARATE_TYPE
    #define wxIF_WINT_T_TYPE(x)
#endif // wxWINT_T_IS_SEPARATE_TYPE/!wxWINT_T_IS_SEPARATE_TYPE

// wchar_t seems to be defined as unsigned short by all Windows compilers but
// unsigned int everywhere else
#ifndef __WIN32__
    #define wxWCHAR_T_IS_UINT
#endif

class WXDLLIMPEXP_BASE wxUniCharRef;
class WXDLLIMPEXP_BASE wxStringIteratorNode;

// This class represents single Unicode character. It can be converted to
// and from char or wchar_t and implements commonly used character operations.
class WXDLLIMPEXP_BASE wxUniChar
{
public:
    // NB: this is not wchar_t on purpose, it needs to represent the entire
    //     Unicode code points range and wchar_t may be too small for that
    //     (e.g. on Win32 where wchar_t* is encoded in UTF-16)
    typedef wxUint32 value_type;

    wxUniChar() : m_value(0) {}

    // Create the character from 8bit character value encoded in the current
    // locale's charset.
    wxUniChar(char c) { m_value = From8bit(c); }
    wxUniChar(unsigned char c) { m_value = From8bit((char)c); }

    // Create the character from a wchar_t character value.
    wxUniChar(wchar_t c) { m_value = c; }
#ifdef wxWINT_T_IS_SEPARATE_TYPE
    wxUniChar(wint_t c) { m_value = c; }
#endif

    wxUniChar(int c) { m_value = c; }

    wxUniChar(const wxUniCharRef& c);

    // Returns Unicode code point value of the character
    value_type GetValue() const { return m_value; }

    // Returns true if the character is an ASCII character:
    bool IsAscii() const { return m_value < 0x80; }

    // Conversions to char and wchar_t types: all of those are needed to be
    // able to pass wxUniChars to verious standard narrow and wide character
    // functions
    operator char() const { return To8bit(m_value); }
    operator wchar_t() const { return m_value; }
    operator int() const { return m_value; }
#ifndef wxWCHAR_T_IS_UINT
    operator unsigned int() const { return m_value; }
#endif

    // More conversions needed for other standard functions: uchar is for VC++
    // _mbxxx() ones (to which toxxx/isxxx() are mapped when _MBCS is defined)
    // and some wide character functions take wint_t which happens to be the
    // same as wchar_t for Windows compilers but not for g++ (except for the
    // special Apple version)
    operator unsigned char() const { return (unsigned char)To8bit(m_value); }
#ifdef wxWINT_T_IS_SEPARATE_TYPE
    operator wint_t() const { return m_value; }
#endif

    // We need this operator for the "*p" part of expressions like "for (
    // const_iterator p = begin() + nStart; *p; ++p )". In this case,
    // compilation would fail without it because the conversion to bool would
    // be ambiguous (there are all these int types conversions...). (And adding
    // operator unspecified_bool_type() would only makes the ambiguity worse.)
    operator bool() const { return m_value != 0; }
    bool operator!() const { return !((bool)*this); }
#if (defined(__VISUALC__) && __VISUALC__ < 1400) || \
    defined(__DIGITALMARS__) || defined(__BORLANDC__)
    // We need this for VC++ < 8 or DigitalMars and expressions like
    // "str[0] && *p":
    bool operator&&(bool v) const { return (bool)*this && v; }
#endif

    // Assignment operators:
    wxUniChar& operator=(const wxUniChar& c) { m_value = c.m_value; return *this; }
    wxUniChar& operator=(char c) { m_value = From8bit(c); return *this; }
    wxUniChar& operator=(unsigned char c) { m_value = From8bit((char)c); return *this; }
    wxUniChar& operator=(wchar_t c) { m_value = c; return *this; }
    wxUniChar& operator=(int c) { m_value = c; return *this; }
#ifdef wxWINT_T_IS_SEPARATE_TYPE
    wxUniChar& operator=(wint_t c) { m_value = c; return *this; }
#endif

    // Comparison operators:

    // define the given comparison operator for all the types
#define wxDEFINE_UNICHAR_OPERATOR(op)                                         \
    bool operator op(const wxUniChar& c) const { return m_value op c.m_value; }\
    bool operator op(char c) const { return m_value op From8bit(c); }         \
    bool operator op(unsigned char c) const { return m_value op From8bit((char)c); } \
    bool operator op(wchar_t c) const { return m_value op (value_type)c; }    \
    bool operator op(int c) const { return m_value op (value_type)c; }        \
    wxIF_WINT_T_TYPE( bool operator op(wint_t c) const { return m_value op (value_type)c; } )

    wxFOR_ALL_COMPARISONS(wxDEFINE_UNICHAR_OPERATOR)

#undef wxDEFINE_UNICHAR_OPERATOR

    // this is needed for expressions like 'Z'-c
    int operator-(const wxUniChar& c) const { return m_value - c.m_value; }
    int operator-(char c) const { return m_value - From8bit(c); }
    int operator-(unsigned char c) const { return m_value - From8bit((char)c); }
    int operator-(wchar_t c) const { return m_value - (value_type)c; }
#ifdef wxWINT_T_IS_SEPARATE_TYPE
    int operator-(wint_t c) const { return m_value - (value_type)c; }
#endif

private:
    static value_type From8bit(char c);
    static char To8bit(value_type c);

private:
    value_type m_value;
};


// Writeable reference to a character in wxString.
//
// This class can be used in the same way wxChar is used, except that changing
// its value updates the underlying string object.
class WXDLLIMPEXP_BASE wxUniCharRef
{
private:
    typedef wxStringImpl::iterator iterator;

    // create the reference
#if wxUSE_UNICODE_UTF8
    wxUniCharRef(wxStringIteratorNode& node, iterator pos) : m_node(node), m_pos(pos) {}
#else
    wxUniCharRef(iterator pos) : m_pos(pos) {}
#endif

public:
    // NB: we have to make this public, because we don't have wxString
    //     declaration available here and so can't declare wxString::iterator
    //     as friend; so at least don't use a ctor but a static function
    //     that must be used explicitly (this is more than using 'explicit'
    //     keyword on ctor!):
#if wxUSE_UNICODE_UTF8
    static wxUniCharRef CreateForString(wxStringIteratorNode& node, iterator pos)
        { return wxUniCharRef(node, pos); }
#else
    static wxUniCharRef CreateForString(iterator pos)
        { return wxUniCharRef(pos); }
#endif

    wxUniChar::value_type GetValue() const { return UniChar().GetValue(); }
    bool IsAscii() const { return UniChar().IsAscii(); }

    // Assignment operators:
#if wxUSE_UNICODE_UTF8
    wxUniCharRef& operator=(const wxUniChar& c);
#else
    wxUniCharRef& operator=(const wxUniChar& c) { *m_pos = c; return *this; }
#endif

    wxUniCharRef& operator=(const wxUniCharRef& c)
        { return *this = c.UniChar(); }

    wxUniCharRef& operator=(char c) { return *this = wxUniChar(c); }
    wxUniCharRef& operator=(unsigned char c) { return *this = wxUniChar(c); }
    wxUniCharRef& operator=(wchar_t c) { return *this = wxUniChar(c); }
    wxUniCharRef& operator=(int c) { return *this = wxUniChar(c); }
#ifdef wxWINT_T_IS_SEPARATE_TYPE
    wxUniCharRef& operator=(wint_t c) { return *this = wxUniChar(c); }
#endif

    // Conversions to the same types as wxUniChar is convertible too:
    operator char() const { return UniChar(); }
    operator int() const { return UniChar(); }
    operator unsigned char() const { return UniChar(); }
    operator wchar_t() const { return UniChar(); }
#ifdef wxWINT_T_IS_SEPARATE_TYPE
    operator wint_t() const { return UniChar(); }
#endif
#ifndef wxWCHAR_T_IS_UINT
    operator unsigned int() const { return UniChar(); }
#endif

    // see wxUniChar::operator bool etc. for explanation
    operator bool() const { return (bool)UniChar(); }
    bool operator!() const { return !UniChar(); }
#if (defined(__VISUALC__) && __VISUALC__ < 1400) || \
    defined(__DIGITALMARS__) || defined(__BORLANDC__)
    bool operator&&(bool v) const { return UniChar() && v; }
#endif

    // Comparison operators:
#define wxDEFINE_UNICHARREF_OPERATOR(op)                                      \
    bool operator op(const wxUniCharRef& c) const { return UniChar() op c.UniChar(); }\
    bool operator op(const wxUniChar& c) const { return UniChar() op c; }     \
    bool operator op(char c) const { return UniChar() op c; }                 \
    bool operator op(unsigned char c) const { return UniChar() op c; }        \
    bool operator op(wchar_t c) const { return UniChar() op c; }              \
    bool operator op(int c) const { return UniChar() op c; }                  \
    wxIF_WINT_T_TYPE( bool operator op(wint_t c) const { return UniChar() op c; } )

    wxFOR_ALL_COMPARISONS(wxDEFINE_UNICHARREF_OPERATOR)

#undef wxDEFINE_UNICHARREF_OPERATOR

    // for expressions like c-'A':
    int operator-(const wxUniCharRef& c) const { return UniChar() - c.UniChar(); }
    int operator-(const wxUniChar& c) const { return UniChar() - c; }
    int operator-(char c) const { return UniChar() - c; }
    int operator-(unsigned char c) const { return UniChar() - c; }
    int operator-(wchar_t c) const { return UniChar() - c; }
#ifdef wxWINT_T_IS_SEPARATE_TYPE
    int operator-(wint_t c) const { return UniChar() - c; }
#endif

private:
#if wxUSE_UNICODE_UTF8
    wxUniChar UniChar() const;
#else
    wxUniChar UniChar() const { return *m_pos; }
#endif

    friend class WXDLLIMPEXP_BASE wxUniChar;

private:
    // reference to the string and pointer to the character in string
#if wxUSE_UNICODE_UTF8
    wxStringIteratorNode& m_node;
#endif
    iterator m_pos;
};

inline wxUniChar::wxUniChar(const wxUniCharRef& c)
{
    m_value = c.UniChar().m_value;
}

// Comparison operators for the case when wxUniChar(Ref) is the second operand
// implemented in terms of member comparison functions

#define wxCMP_REVERSE(c1, c2, op) c2 op c1

wxDEFINE_COMPARISONS(char, const wxUniChar&, wxCMP_REVERSE)
wxDEFINE_COMPARISONS(char, const wxUniCharRef&, wxCMP_REVERSE)

wxDEFINE_COMPARISONS(wchar_t, const wxUniChar&, wxCMP_REVERSE)
wxDEFINE_COMPARISONS(wchar_t, const wxUniCharRef&, wxCMP_REVERSE)

#ifdef wxWINT_T_IS_SEPARATE_TYPE
wxDEFINE_COMPARISONS(wint_t, const wxUniChar&, wxCMP_REVERSE)
wxDEFINE_COMPARISONS(wint_t, const wxUniCharRef&, wxCMP_REVERSE)
#endif

wxDEFINE_COMPARISONS(const wxUniChar&, const wxUniCharRef&, wxCMP_REVERSE)

#undef wxCMP_REVERSE

// for expressions like c-'A':
inline int operator-(char c1, const wxUniCharRef& c2) { return -(c2 - c1); }
inline int operator-(const wxUniChar& c1, const wxUniCharRef& c2) { return -(c2 - c1); }
inline int operator-(wchar_t c1, const wxUniCharRef& c2) { return -(c2 - c1); }
#ifdef wxWINT_T_IS_SEPARATE_TYPE
inline int operator-(wint_t c1, const wxUniCharRef& c2) { return -(c2 - c1); }
#endif

#endif /* _WX_UNICHAR_H_ */
Commit	Line	Data
e3f6cbd9 VS	1	///////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/unichar.h
	3	// Purpose: wxUniChar and wxUniCharRef classes
	4	// Author: Vaclav Slavik
	5	// Created: 2007-03-19
	6	// RCS-ID: $Id$
	7	// Copyright: (c) 2007 REA Elektronik GmbH
	8	// Licence: wxWindows licence
	9	///////////////////////////////////////////////////////////////////////////////
	10
	11	#ifndef _WX_UNICHAR_H_
	12	#define _WX_UNICHAR_H_
	13
dbecee02	14	#include "wx/defs.h"
e3f6cbd9	15	#include "wx/chartype.h"
a7ea63e2	16	#include "wx/stringimpl.h"
a962cdf4	17
436bb9f5 VZ	18	// wint_t is just a typedef for wchar_t for many old compilers but for modern
	19	// ones it's a separate type and we must provide a conversion to it to allow
	20	// passing wxUniChar[Ref] to functions taking wint_t such as iswalnum() &c
fddca1dc VZ	21	#if (defined(__GNUC__) && \
fddca1dc VZ	22	!defined(__DARWIN__) && !defined(__OS2__) && !defined(__DOS__)) \|\| \
436bb9f5 VZ	23	(defined(__VISUALC__) && defined(_NATIVE_WCHAR_T_DEFINED))
	24	#define wxWINT_T_IS_SEPARATE_TYPE
	25	#endif
	26
	27	// helper macro for doing something dependent on whether wint_t is or isn't a
	28	// typedef inside another macro
	29	#ifdef wxWINT_T_IS_SEPARATE_TYPE
	30	#define wxIF_WINT_T_TYPE(x) x
	31	#else // !wxWINT_T_IS_SEPARATE_TYPE
	32	#define wxIF_WINT_T_TYPE(x)
	33	#endif // wxWINT_T_IS_SEPARATE_TYPE/!wxWINT_T_IS_SEPARATE_TYPE
	34
153bc803 VZ	35	// wchar_t seems to be defined as unsigned short by all Windows compilers but
	36	// unsigned int everywhere else
	37	#ifndef __WIN32__
	38	#define wxWCHAR_T_IS_UINT
	39	#endif
	40
e3f6cbd9	41	class WXDLLIMPEXP_BASE wxUniCharRef;
b0c4d5d7	42	class WXDLLIMPEXP_BASE wxStringIteratorNode;
e3f6cbd9 VS	43
	44	// This class represents single Unicode character. It can be converted to
	45	// and from char or wchar_t and implements commonly used character operations.
	46	class WXDLLIMPEXP_BASE wxUniChar
	47	{
	48	public:
	49	// NB: this is not wchar_t on purpose, it needs to represent the entire
	50	// Unicode code points range and wchar_t may be too small for that
	51	// (e.g. on Win32 where wchar_t* is encoded in UTF-16)
dbecee02	52	typedef wxUint32 value_type;
e3f6cbd9 VS	53
	54	wxUniChar() : m_value(0) {}
	55
	56	// Create the character from 8bit character value encoded in the current
	57	// locale's charset.
	58	wxUniChar(char c) { m_value = From8bit(c); }
9f1b1b78	59	wxUniChar(unsigned char c) { m_value = From8bit((char)c); }
e3f6cbd9 VS	60
	61	// Create the character from a wchar_t character value.
	62	wxUniChar(wchar_t c) { m_value = c; }
436bb9f5 VZ	63	#ifdef wxWINT_T_IS_SEPARATE_TYPE
	64	wxUniChar(wint_t c) { m_value = c; }
	65	#endif
e3f6cbd9	66
e3f6cbd9 VS	67	wxUniChar(int c) { m_value = c; }
	68
	69	wxUniChar(const wxUniCharRef& c);
	70
	71	// Returns Unicode code point value of the character
d1b7ed67	72	value_type GetValue() const { return m_value; }
e3f6cbd9	73
81727065 VS	74	// Returns true if the character is an ASCII character:
	75	bool IsAscii() const { return m_value < 0x80; }
	76
2a686bd3 VZ	77	// Conversions to char and wchar_t types: all of those are needed to be
	78	// able to pass wxUniChars to verious standard narrow and wide character
	79	// functions
e3f6cbd9 VS	80	operator char() const { return To8bit(m_value); }
e3f6cbd9 VS	81	operator wchar_t() const { return m_value; }
e3f6cbd9	82	operator int() const { return m_value; }
153bc803 VZ	83	#ifndef wxWCHAR_T_IS_UINT
	84	operator unsigned int() const { return m_value; }
	85	#endif
2a686bd3 VZ	86
	87	// More conversions needed for other standard functions: uchar is for VC++
	88	// _mbxxx() ones (to which toxxx/isxxx() are mapped when _MBCS is defined)
c961c0cf VZ	89	// and some wide character functions take wint_t which happens to be the
	90	// same as wchar_t for Windows compilers but not for g++ (except for the
	91	// special Apple version)
2a686bd3	92	operator unsigned char() const { return (unsigned char)To8bit(m_value); }
436bb9f5	93	#ifdef wxWINT_T_IS_SEPARATE_TYPE
c961c0cf VZ	94	operator wint_t() const { return m_value; }
c961c0cf VZ	95	#endif
e3f6cbd9 VS	96
	97	// We need this operator for the "*p" part of expressions like "for (
	98	// const_iterator p = begin() + nStart; *p; ++p )". In this case,
	99	// compilation would fail without it because the conversion to bool would
	100	// be ambiguous (there are all these int types conversions...). (And adding
	101	// operator unspecified_bool_type() would only makes the ambiguity worse.)
	102	operator bool() const { return m_value != 0; }
	103	bool operator!() const { return !((bool)*this); }
	104	#if (defined(__VISUALC__) && __VISUALC__ < 1400) \|\| \
	105	defined(__DIGITALMARS__) \|\| defined(__BORLANDC__)
	106	// We need this for VC++ < 8 or DigitalMars and expressions like
	107	// "str[0] && *p":
	108	bool operator&&(bool v) const { return (bool)*this && v; }
	109	#endif
	110
	111	// Assignment operators:
	112	wxUniChar& operator=(const wxUniChar& c) { m_value = c.m_value; return *this; }
	113	wxUniChar& operator=(char c) { m_value = From8bit(c); return *this; }
db18be57	114	wxUniChar& operator=(unsigned char c) { m_value = From8bit((char)c); return *this; }
e3f6cbd9	115	wxUniChar& operator=(wchar_t c) { m_value = c; return *this; }
171d6132	116	wxUniChar& operator=(int c) { m_value = c; return *this; }
436bb9f5 VZ	117	#ifdef wxWINT_T_IS_SEPARATE_TYPE
	118	wxUniChar& operator=(wint_t c) { m_value = c; return *this; }
	119	#endif
e3f6cbd9	120
fb52c2b6	121	// Comparison operators:
e3f6cbd9	122
fb52c2b6	123	// define the given comparison operator for all the types
98c4eb39	124	#define wxDEFINE_UNICHAR_OPERATOR(op) \
fb52c2b6 VZ	125	bool operator op(const wxUniChar& c) const { return m_value op c.m_value; }\
fb52c2b6 VZ	126	bool operator op(char c) const { return m_value op From8bit(c); } \
db18be57	127	bool operator op(unsigned char c) const { return m_value op From8bit((char)c); } \
436bb9f5	128	bool operator op(wchar_t c) const { return m_value op (value_type)c; } \
db18be57	129	bool operator op(int c) const { return m_value op (value_type)c; } \
436bb9f5	130	wxIF_WINT_T_TYPE( bool operator op(wint_t c) const { return m_value op (value_type)c; } )
e3f6cbd9	131
fb52c2b6	132	wxFOR_ALL_COMPARISONS(wxDEFINE_UNICHAR_OPERATOR)
e3f6cbd9	133
fb52c2b6	134	#undef wxDEFINE_UNICHAR_OPERATOR
e3f6cbd9	135
fb52c2b6	136	// this is needed for expressions like 'Z'-c
e3f6cbd9 VS	137	int operator-(const wxUniChar& c) const { return m_value - c.m_value; }
e3f6cbd9 VS	138	int operator-(char c) const { return m_value - From8bit(c); }
db18be57	139	int operator-(unsigned char c) const { return m_value - From8bit((char)c); }
d1b7ed67	140	int operator-(wchar_t c) const { return m_value - (value_type)c; }
436bb9f5 VZ	141	#ifdef wxWINT_T_IS_SEPARATE_TYPE
	142	int operator-(wint_t c) const { return m_value - (value_type)c; }
	143	#endif
e3f6cbd9 VS	144
e3f6cbd9 VS	145	private:
d1b7ed67 VS	146	static value_type From8bit(char c);
d1b7ed67 VS	147	static char To8bit(value_type c);
e3f6cbd9 VS	148
e3f6cbd9 VS	149	private:
d1b7ed67	150	value_type m_value;
e3f6cbd9 VS	151	};
	152
	153
	154	// Writeable reference to a character in wxString.
	155	//
	156	// This class can be used in the same way wxChar is used, except that changing
	157	// its value updates the underlying string object.
	158	class WXDLLIMPEXP_BASE wxUniCharRef
	159	{
	160	private:
a962cdf4 VS	161	typedef wxStringImpl::iterator iterator;
a962cdf4 VS	162
e3f6cbd9	163	// create the reference
81727065	164	#if wxUSE_UNICODE_UTF8
b0c4d5d7	165	wxUniCharRef(wxStringIteratorNode& node, iterator pos) : m_node(node), m_pos(pos) {}
81727065	166	#else
a962cdf4	167	wxUniCharRef(iterator pos) : m_pos(pos) {}
81727065	168	#endif
e3f6cbd9 VS	169
	170	public:
	171	// NB: we have to make this public, because we don't have wxString
	172	// declaration available here and so can't declare wxString::iterator
	173	// as friend; so at least don't use a ctor but a static function
	174	// that must be used explicitly (this is more than using 'explicit'
	175	// keyword on ctor!):
81727065	176	#if wxUSE_UNICODE_UTF8
b0c4d5d7 VS	177	static wxUniCharRef CreateForString(wxStringIteratorNode& node, iterator pos)
b0c4d5d7 VS	178	{ return wxUniCharRef(node, pos); }
81727065	179	#else
a962cdf4	180	static wxUniCharRef CreateForString(iterator pos)
e3f6cbd9	181	{ return wxUniCharRef(pos); }
81727065	182	#endif
e3f6cbd9	183
d1b7ed67	184	wxUniChar::value_type GetValue() const { return UniChar().GetValue(); }
bc5443ba	185	bool IsAscii() const { return UniChar().IsAscii(); }
e3f6cbd9 VS	186
e3f6cbd9 VS	187	// Assignment operators:
81727065 VS	188	#if wxUSE_UNICODE_UTF8
	189	wxUniCharRef& operator=(const wxUniChar& c);
	190	#else
	191	wxUniCharRef& operator=(const wxUniChar& c) { m_pos = c; return this; }
	192	#endif
e3f6cbd9	193
81727065 VS	194	wxUniCharRef& operator=(const wxUniCharRef& c)
81727065 VS	195	{ return *this = c.UniChar(); }
e3f6cbd9 VS	196
e3f6cbd9 VS	197	wxUniCharRef& operator=(char c) { return *this = wxUniChar(c); }
db18be57	198	wxUniCharRef& operator=(unsigned char c) { return *this = wxUniChar(c); }
e3f6cbd9	199	wxUniCharRef& operator=(wchar_t c) { return *this = wxUniChar(c); }
171d6132	200	wxUniCharRef& operator=(int c) { return *this = wxUniChar(c); }
436bb9f5 VZ	201	#ifdef wxWINT_T_IS_SEPARATE_TYPE
	202	wxUniCharRef& operator=(wint_t c) { return *this = wxUniChar(c); }
	203	#endif
e3f6cbd9	204
2a686bd3	205	// Conversions to the same types as wxUniChar is convertible too:
e3f6cbd9	206	operator char() const { return UniChar(); }
e3f6cbd9	207	operator int() const { return UniChar(); }
2a686bd3	208	operator unsigned char() const { return UniChar(); }
436bb9f5 VZ	209	operator wchar_t() const { return UniChar(); }
436bb9f5 VZ	210	#ifdef wxWINT_T_IS_SEPARATE_TYPE
c961c0cf VZ	211	operator wint_t() const { return UniChar(); }
c961c0cf VZ	212	#endif
153bc803 VZ	213	#ifndef wxWCHAR_T_IS_UINT
	214	operator unsigned int() const { return UniChar(); }
	215	#endif
e3f6cbd9 VS	216
	217	// see wxUniChar::operator bool etc. for explanation
	218	operator bool() const { return (bool)UniChar(); }
	219	bool operator!() const { return !UniChar(); }
	220	#if (defined(__VISUALC__) && __VISUALC__ < 1400) \|\| \
	221	defined(__DIGITALMARS__) \|\| defined(__BORLANDC__)
	222	bool operator&&(bool v) const { return UniChar() && v; }
	223	#endif
	224
fb52c2b6	225	// Comparison operators:
98c4eb39	226	#define wxDEFINE_UNICHARREF_OPERATOR(op) \
fb52c2b6 VZ	227	bool operator op(const wxUniCharRef& c) const { return UniChar() op c.UniChar(); }\
	228	bool operator op(const wxUniChar& c) const { return UniChar() op c; } \
	229	bool operator op(char c) const { return UniChar() op c; } \
db18be57	230	bool operator op(unsigned char c) const { return UniChar() op c; } \
436bb9f5	231	bool operator op(wchar_t c) const { return UniChar() op c; } \
db18be57	232	bool operator op(int c) const { return UniChar() op c; } \
436bb9f5	233	wxIF_WINT_T_TYPE( bool operator op(wint_t c) const { return UniChar() op c; } )
e3f6cbd9	234
fb52c2b6	235	wxFOR_ALL_COMPARISONS(wxDEFINE_UNICHARREF_OPERATOR)
e3f6cbd9	236
fb52c2b6	237	#undef wxDEFINE_UNICHARREF_OPERATOR
e3f6cbd9 VS	238
	239	// for expressions like c-'A':
	240	int operator-(const wxUniCharRef& c) const { return UniChar() - c.UniChar(); }
	241	int operator-(const wxUniChar& c) const { return UniChar() - c; }
	242	int operator-(char c) const { return UniChar() - c; }
db18be57	243	int operator-(unsigned char c) const { return UniChar() - c; }
e3f6cbd9	244	int operator-(wchar_t c) const { return UniChar() - c; }
436bb9f5 VZ	245	#ifdef wxWINT_T_IS_SEPARATE_TYPE
	246	int operator-(wint_t c) const { return UniChar() - c; }
	247	#endif
e3f6cbd9 VS	248
e3f6cbd9 VS	249	private:
81727065	250	#if wxUSE_UNICODE_UTF8
467175ab	251	wxUniChar UniChar() const;
81727065	252	#else
467175ab	253	wxUniChar UniChar() const { return *m_pos; }
81727065 VS	254	#endif
81727065 VS	255
e3f6cbd9 VS	256	friend class WXDLLIMPEXP_BASE wxUniChar;
	257
	258	private:
81727065 VS	259	// reference to the string and pointer to the character in string
81727065 VS	260	#if wxUSE_UNICODE_UTF8
b0c4d5d7	261	wxStringIteratorNode& m_node;
81727065	262	#endif
a962cdf4	263	iterator m_pos;
e3f6cbd9 VS	264	};
	265
	266	inline wxUniChar::wxUniChar(const wxUniCharRef& c)
	267	{
	268	m_value = c.UniChar().m_value;
	269	}
	270
fb52c2b6 VZ	271	// Comparison operators for the case when wxUniChar(Ref) is the second operand
fb52c2b6 VZ	272	// implemented in terms of member comparison functions
e3f6cbd9	273
fb52c2b6	274	#define wxCMP_REVERSE(c1, c2, op) c2 op c1
e3f6cbd9	275
fb52c2b6 VZ	276	wxDEFINE_COMPARISONS(char, const wxUniChar&, wxCMP_REVERSE)
fb52c2b6 VZ	277	wxDEFINE_COMPARISONS(char, const wxUniCharRef&, wxCMP_REVERSE)
e3f6cbd9	278
fb52c2b6 VZ	279	wxDEFINE_COMPARISONS(wchar_t, const wxUniChar&, wxCMP_REVERSE)
fb52c2b6 VZ	280	wxDEFINE_COMPARISONS(wchar_t, const wxUniCharRef&, wxCMP_REVERSE)
e3f6cbd9	281
436bb9f5	282	#ifdef wxWINT_T_IS_SEPARATE_TYPE
2c6725e6	283	wxDEFINE_COMPARISONS(wint_t, const wxUniChar&, wxCMP_REVERSE)
436bb9f5 VZ	284	wxDEFINE_COMPARISONS(wint_t, const wxUniCharRef&, wxCMP_REVERSE)
	285	#endif
	286
fb52c2b6	287	wxDEFINE_COMPARISONS(const wxUniChar&, const wxUniCharRef&, wxCMP_REVERSE)
e3f6cbd9	288
fb52c2b6	289	#undef wxCMP_REVERSE
e3f6cbd9 VS	290
	291	// for expressions like c-'A':
	292	inline int operator-(char c1, const wxUniCharRef& c2) { return -(c2 - c1); }
e3f6cbd9	293	inline int operator-(const wxUniChar& c1, const wxUniCharRef& c2) { return -(c2 - c1); }
436bb9f5 VZ	294	inline int operator-(wchar_t c1, const wxUniCharRef& c2) { return -(c2 - c1); }
	295	#ifdef wxWINT_T_IS_SEPARATE_TYPE
	296	inline int operator-(wint_t c1, const wxUniCharRef& c2) { return -(c2 - c1); }
	297	#endif
e3f6cbd9 VS	298
e3f6cbd9 VS	299	#endif /* _WX_UNICHAR_H_ */