X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/817270659e986de1b243586d8eb6ad3a76c87480..56eeb97339e6760855b4e7866b7f4dd92368a189:/include/wx/unichar.h

diff --git a/include/wx/unichar.h b/include/wx/unichar.h
index fc664c031f..8c61a2c898 100644
--- a/include/wx/unichar.h
+++ b/include/wx/unichar.h
@@ -15,29 +15,26 @@
 #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(__VISUALC__) && defined(_NATIVE_WCHAR_T_DEFINED))
-    #define wxWINT_T_IS_SEPARATE_TYPE
+#ifndef wxWCHAR_T_IS_SEPARATE_TYPE
+    // older versions of VC++ have wchar_t as typedef by default; this is
+    // configurable, so we have to check which behaviour is enabled
+    #if defined(__VISUALC__) && !defined(_NATIVE_WCHAR_T_DEFINED)
+        #define wxWCHAR_T_IS_SEPARATE_TYPE 0
+    #else
+        #define wxWCHAR_T_IS_SEPARATE_TYPE 1
+    #endif
 #endif
 
-// helper macro for doing something dependent on whether wint_t is or isn't a
+// helper macro for doing something dependent on whether wchar_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
+#if wxWCHAR_T_IS_SEPARATE_TYPE
+    #define wxIF_WCHAR_T_TYPE(x) x
+#else // !wxWCHAR_T_IS_SEPARATE_TYPE
+    #define wxIF_WCHAR_T_TYPE(x)
+#endif // wxWCHAR_T_IS_SEPARATE_TYPE/!wxWCHAR_T_IS_SEPARATE_TYPE
 
 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.
@@ -57,18 +54,35 @@ public:
     wxUniChar(unsigned char c) { m_value = From8bit((char)c); }
 
     // Create the character from a wchar_t character value.
+#if wxWCHAR_T_IS_SEPARATE_TYPE
     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(unsigned int c) { m_value = c; }
+    wxUniChar(long int c) { m_value = c; }
+    wxUniChar(unsigned long int c) { m_value = c; }
+    wxUniChar(short int c) { m_value = c; }
+    wxUniChar(unsigned short int c) { m_value = c; }
 
     wxUniChar(const wxUniCharRef& c);
 
     // Returns Unicode code point value of the character
     value_type GetValue() const { return m_value; }
 
+#if wxUSE_UNICODE_UTF8
+    // buffer for single UTF-8 character
+    struct Utf8CharBuffer
+    {
+        char data[5];
+        operator const char*() const { return data; }
+    };
+
+    // returns the character encoded as UTF-8
+    // (NB: implemented in stringops.cpp)
+    Utf8CharBuffer AsUTF8() const;
+#endif // wxUSE_UNICODE_UTF8
+
     // Returns true if the character is an ASCII character:
     bool IsAscii() const { return m_value < 0x80; }
 
@@ -76,21 +90,16 @@ public:
     // able to pass wxUniChars to verious standard narrow and wide character
     // functions
     operator char() const { return To8bit(m_value); }
+    operator unsigned char() const { return (unsigned char)To8bit(m_value); }
+#if wxWCHAR_T_IS_SEPARATE_TYPE
     operator wchar_t() const { return m_value; }
+#endif
     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
+    operator long int() const { return m_value; }
+    operator unsigned long int() const { return m_value; }
+    operator short int() const { return m_value; }
+    operator unsigned short int() const { return m_value; }
 
     // We need this operator for the "*p" part of expressions like "for (
     // const_iterator p = begin() + nStart; *p; ++p )". In this case,
@@ -99,21 +108,24 @@ public:
     // 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":
+
+    // And this one is needed by some (not all, but not using ifdefs makes the
+    // code easier) compilers to parse "str[0] && *p" successfully
     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; }
+#if wxWCHAR_T_IS_SEPARATE_TYPE
     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
+    wxUniChar& operator=(int c) { m_value = c; return *this; }
+    wxUniChar& operator=(unsigned int c) { m_value = c; return *this; }
+    wxUniChar& operator=(long int c) { m_value = c; return *this; }
+    wxUniChar& operator=(unsigned long int c) { m_value = c; return *this; }
+    wxUniChar& operator=(short int c) { m_value = c; return *this; }
+    wxUniChar& operator=(unsigned short int c) { m_value = c; return *this; }
 
     // Comparison operators:
 
@@ -121,8 +133,14 @@ public:
 #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(wchar_t 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; } )
+    bool operator op(unsigned char c) const { return m_value op From8bit((char)c); } \
+    wxIF_WCHAR_T_TYPE( 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; }        \
+    bool operator op(unsigned int c) const { return m_value op (value_type)c; }        \
+    bool operator op(short int c) const { return m_value op (value_type)c; }  \
+    bool operator op(unsigned short int c) const { return m_value op (value_type)c; }  \
+    bool operator op(long int c) const { return m_value op (value_type)c; }   \
+    bool operator op(unsigned long int c) const { return m_value op (value_type)c; }
 
     wxFOR_ALL_COMPARISONS(wxDEFINE_UNICHAR_OPERATOR)
 
@@ -131,10 +149,9 @@ public:
     // 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);
@@ -156,7 +173,7 @@ private:
 
     // create the reference
 #if wxUSE_UNICODE_UTF8
-    wxUniCharRef(wxStringImpl& str, iterator pos) : m_str(str), m_pos(pos) {}
+    wxUniCharRef(wxStringIteratorNode& node, iterator pos) : m_node(node), m_pos(pos) {}
 #else
     wxUniCharRef(iterator pos) : m_pos(pos) {}
 #endif
@@ -168,15 +185,20 @@ public:
     //     that must be used explicitly (this is more than using 'explicit'
     //     keyword on ctor!):
 #if wxUSE_UNICODE_UTF8
-    static wxUniCharRef CreateForString(wxStringImpl& str, iterator pos)
-        { return wxUniCharRef(str, pos); }
+    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().GetValue(); }
+
+#if wxUSE_UNICODE_UTF8
+    wxUniChar::Utf8CharBuffer AsUTF8() const { return UniChar().AsUTF8(); }
+#endif // wxUSE_UNICODE_UTF8
+
+    bool IsAscii() const { return UniChar().IsAscii(); }
 
     // Assignment operators:
 #if wxUSE_UNICODE_UTF8
@@ -189,39 +211,48 @@ public:
         { return *this = c.UniChar(); }
 
     wxUniCharRef& operator=(char c) { return *this = wxUniChar(c); }
+    wxUniCharRef& operator=(unsigned char c) { return *this = wxUniChar(c); }
+#if wxWCHAR_T_IS_SEPARATE_TYPE
     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
+    wxUniCharRef& operator=(int c) { return *this = wxUniChar(c); }
+    wxUniCharRef& operator=(unsigned int c) { return *this = wxUniChar(c); }
+    wxUniCharRef& operator=(short int c) { return *this = wxUniChar(c); }
+    wxUniCharRef& operator=(unsigned short int c) { return *this = wxUniChar(c); }
+    wxUniCharRef& operator=(long int c) { return *this = wxUniChar(c); }
+    wxUniCharRef& operator=(unsigned long int c) { return *this = wxUniChar(c); }
 
     // 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(); }
+#if wxWCHAR_T_IS_SEPARATE_TYPE
     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 int() const { return UniChar(); }
     operator unsigned int() const { return UniChar(); }
-#endif
+    operator short int() const { return UniChar(); }
+    operator unsigned short int() const { return UniChar(); }
+    operator long int() const { return UniChar(); }
+    operator unsigned long int() const { return UniChar(); }
 
     // 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(wchar_t c) const { return UniChar() op c; }              \
-    wxIF_WINT_T_TYPE( bool operator op(wint_t c) const { return UniChar() op c; } )
+    bool operator op(unsigned char c) const { return UniChar() op c; }        \
+    wxIF_WCHAR_T_TYPE( bool operator op(wchar_t c) const { return UniChar() op c; } ) \
+    bool operator op(int c) const { return UniChar() op c; }                  \
+    bool operator op(unsigned int c) const { return UniChar() op c; }         \
+    bool operator op(short int c) const { return UniChar() op c; }             \
+    bool operator op(unsigned short int c) const { return UniChar() op c; }    \
+    bool operator op(long int c) const { return UniChar() op c; }             \
+    bool operator op(unsigned long int c) const { return UniChar() op c; }
 
     wxFOR_ALL_COMPARISONS(wxDEFINE_UNICHARREF_OPERATOR)
 
@@ -231,25 +262,14 @@ public:
     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:
-    wxUniChar UniChar() const
-    {
 #if wxUSE_UNICODE_UTF8
-        return DecodeChar(m_pos);
+    wxUniChar UniChar() const;
 #else
-        return *m_pos;
-#endif
-    }
-
-#if wxUSE_UNICODE_UTF8
-    // FIXME-UTF8: move this to a separate 'string operations' class
-    static wxUniChar DecodeChar(wxStringImpl::const_iterator i);
-    friend class WXDLLIMPEXP_BASE wxString;
+    wxUniChar UniChar() const { return *m_pos; }
 #endif
 
     friend class WXDLLIMPEXP_BASE wxUniChar;
@@ -257,7 +277,7 @@ private:
 private:
     // reference to the string and pointer to the character in string
 #if wxUSE_UNICODE_UTF8
-    wxStringImpl& m_str;
+    wxStringIteratorNode& m_node;
 #endif
     iterator m_pos;
 };
@@ -278,11 +298,6 @@ 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
@@ -291,8 +306,5 @@ wxDEFINE_COMPARISONS(const wxUniChar&, const wxUniCharRef&, wxCMP_REVERSE)
 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_ */