+/*
+ FIXME-UTF8: split this header into more:
+ wxchartype.h for wxChar definition (only this one will have to
+ remain C header, the rest can be C++)
+ wxcrt.h for CRT wrappers
+ wxchar.h for wxChar+wxCharRef classes
+ */
+#ifdef __cplusplus
+class WXDLLIMPEXP_BASE wxString;
+class WXDLLIMPEXP_BASE wxUniCharRef;
+
+// 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 unsigned int unicode_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); }
+
+ // Create the character from a wchar_t character value.
+ wxUniChar(wchar_t c) { m_value = c; }
+
+#ifndef wxWINT_T_IS_TYPEDEF
+ // Create the character from a wint_t character value.
+ 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
+ unicode_type GetValue() const { return m_value; }
+
+ // Casts to char and wchar_t types:
+ operator char() const { return To8bit(m_value); }
+ operator wchar_t() const { return m_value; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ operator wint_t() const { return m_value; }
+#endif
+ operator 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,
+ // 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=(wchar_t c) { m_value = c; return *this; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ wxUniChar& operator=(wint_t c) { m_value = c; return *this; }
+#endif
+
+ // Comparision operators:
+ bool operator==(const wxUniChar& c) const { return m_value == c.m_value; }
+ bool operator==(char c) const { return m_value == From8bit(c); }
+ bool operator==(wchar_t c) const { return m_value == (unicode_type)c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ bool operator==(wint_t c) const { return m_value == (unicode_type)c; }
+#endif
+
+ bool operator!=(const wxUniChar& c) const { return m_value != c.m_value; }
+ bool operator!=(char c) const { return m_value != From8bit(c); }
+ bool operator!=(wchar_t c) const { return m_value != (unicode_type)c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ bool operator!=(wint_t c) const { return m_value != (unicode_type)c; }
+#endif
+
+ bool operator>(const wxUniChar& c) const { return m_value > c.m_value; }
+ bool operator>(char c) const { return m_value > (unicode_type)c; }
+ bool operator>(wchar_t c) const { return m_value > (unicode_type)c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ bool operator>(wint_t c) const { return m_value > (unicode_type)c; }
+#endif
+
+ bool operator<(const wxUniChar& c) const { return m_value < c.m_value; }
+ bool operator<(char c) const { return m_value < From8bit(c); }
+ bool operator<(wchar_t c) const { return m_value < (unicode_type)c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ bool operator<(wint_t c) const { return m_value < (unicode_type)c; }
+#endif
+
+ bool operator>=(const wxUniChar& c) const { return m_value >= c.m_value; }
+ bool operator>=(char c) const { return m_value >= From8bit(c); }
+ bool operator>=(wchar_t c) const { return m_value >= (unicode_type)c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ bool operator>=(wint_t c) const { return m_value >= (unicode_type)c; }
+#endif
+
+ bool operator<=(const wxUniChar& c) const { return m_value <= c.m_value; }
+ bool operator<=(char c) const { return m_value <= From8bit(c); }
+ bool operator<=(wchar_t c) const { return m_value <= (unicode_type)c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ bool operator<=(wint_t c) const { return m_value <= (unicode_type)c; }
+#endif
+
+ int operator-(const wxUniChar& c) const { return m_value - c.m_value; }
+ int operator-(char c) const { return m_value - From8bit(c); }
+ int operator-(wchar_t c) const { return m_value - (unicode_type)c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ int operator-(wint_t c) const { return m_value - (unicode_type)c; }
+#endif
+
+private:
+ static unicode_type From8bit(char c);
+ static char To8bit(unicode_type c);
+
+private:
+ unicode_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:
+ // create the reference
+ // FIXME: the interface will need changes for UTF-8 build
+ wxUniCharRef(wxChar *pos) : m_pos(pos) {}
+
+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!):
+ //
+ // FIXME: the interface will need changes for UTF-8 build
+ static wxUniCharRef CreateForString(wxChar *pos)
+ { return wxUniCharRef(pos); }
+
+ wxUniChar::unicode_type GetValue() const { return UniChar().GetValue(); }
+
+ // Assignment operators:
+ wxUniCharRef& operator=(const wxUniCharRef& c)
+ {
+ *m_pos = *c.m_pos;
+ return *this;
+ };
+
+ wxUniCharRef& operator=(const wxUniChar& c)
+ {
+ *m_pos = c;
+ return *this;
+ };
+
+ wxUniCharRef& operator=(char c) { return *this = wxUniChar(c); }
+ wxUniCharRef& operator=(wchar_t c) { return *this = wxUniChar(c); }
+
+ // Casts to wxUniChar type:
+ operator char() const { return UniChar(); }
+ operator wchar_t() const { return UniChar(); }
+#ifndef wxWINT_T_IS_TYPEDEF
+ operator wint_t() const { return UniChar(); }
+#endif
+ operator 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
+
+ // Comparision operators:
+ bool operator==(const wxUniCharRef& c) const { return m_pos == c.m_pos; }
+ bool operator==(const wxUniChar& c) const { return UniChar() == c; }
+ bool operator==(char c) const { return UniChar() == c; }
+ bool operator==(wchar_t c) const { return UniChar() == c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ bool operator==(wint_t c) const { return UniChar() == c; }
+#endif
+
+ bool operator!=(const wxUniCharRef& c) const { return m_pos != c.m_pos; }
+ bool operator!=(const wxUniChar& c) const { return UniChar() != c; }
+ bool operator!=(char c) const { return UniChar() != c; }
+ bool operator!=(wchar_t c) const { return UniChar() != c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ bool operator!=(wint_t c) const { return UniChar() != c; }
+#endif
+
+ bool operator>(const wxUniCharRef& c) const { return UniChar() > c.UniChar(); }
+ bool operator>(const wxUniChar& c) const { return UniChar() > c; }
+ bool operator>(char c) const { return UniChar() > c; }
+ bool operator>(wchar_t c) const { return UniChar() > c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ bool operator>(wint_t c) const { return UniChar() > c; }
+#endif
+
+ bool operator<(const wxUniCharRef& c) const { return UniChar() < c.UniChar(); }
+ bool operator<(const wxUniChar& c) const { return UniChar() < c; }
+ bool operator<(char c) const { return UniChar() < c; }
+ bool operator<(wchar_t c) const { return UniChar() < c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ bool operator<(wint_t c) const { return UniChar() < c; }
+#endif
+
+ bool operator>=(const wxUniCharRef& c) const { return UniChar() >= c.UniChar(); }
+ bool operator>=(const wxUniChar& c) const { return UniChar() >= c; }
+ bool operator>=(char c) const { return UniChar() >= c; }
+ bool operator>=(wchar_t c) const { return UniChar() >= c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ bool operator>=(wint_t c) const { return UniChar() >= c; }
+#endif
+
+ bool operator<=(const wxUniCharRef& c) const { return UniChar() <= c.UniChar(); }
+ bool operator<=(const wxUniChar& c) const { return UniChar() <= c; }
+ bool operator<=(char c) const { return UniChar() <= c; }
+ bool operator<=(wchar_t c) const { return UniChar() <= c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ bool operator<=(wint_t c) const { return UniChar() <= c; }
+#endif
+
+ 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-(wchar_t c) const { return UniChar() - c; }
+#ifndef wxWINT_T_IS_TYPEDEF
+ int operator-(wint_t c) const { return UniChar() - c; }
+#endif
+
+private:
+ wxUniChar UniChar() const { return *m_pos; }
+ friend class WXDLLIMPEXP_BASE wxUniChar;
+
+private:
+ // pointer to the character in string
+ wxChar *m_pos;
+};
+
+inline wxUniChar::wxUniChar(const wxUniCharRef& c)
+{
+ m_value = c.UniChar().m_value;
+}
+
+// Comparision operators for the case when wxUniChar(Ref) is the second operand:
+inline bool operator==(char c1, const wxUniChar& c2) { return c2 == c1; }
+inline bool operator==(wchar_t c1, const wxUniChar& c2) { return c2 == c1; }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline bool operator==(wint_t c1, const wxUniChar& c2) { return c2 == c1; }
+#endif
+
+inline bool operator!=(char c1, const wxUniChar& c2) { return c2 != c1; }
+inline bool operator!=(wchar_t c1, const wxUniChar& c2) { return c2 != c1; }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline bool operator!=(wint_t c1, const wxUniChar& c2) { return c2 != c1; }
+#endif
+
+inline bool operator>(char c1, const wxUniChar& c2) { return c2 < c1; }
+inline bool operator>(wchar_t c1, const wxUniChar& c2) { return c2 < c1; }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline bool operator>(wint_t c1, const wxUniChar& c2) { return c2 < c1; }
+#endif
+
+inline bool operator<(char c1, const wxUniChar& c2) { return c2 > c1; }
+inline bool operator<(wchar_t c1, const wxUniChar& c2) { return c2 > c1; }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline bool operator<(wint_t c1, const wxUniChar& c2) { return c2 > c1; }
+#endif
+
+inline bool operator>=(char c1, const wxUniChar& c2) { return c2 <= c1; }
+inline bool operator>=(wchar_t c1, const wxUniChar& c2) { return c2 <= c1; }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline bool operator>=(wint_t c1, const wxUniChar& c2) { return c2 <= c1; }
+#endif
+
+inline bool operator<=(char c1, const wxUniChar& c2) { return c2 >= c1; }
+inline bool operator<=(wchar_t c1, const wxUniChar& c2) { return c2 >= c1; }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline bool operator<=(wint_t c1, const wxUniChar& c2) { return c2 >= c1; }
+#endif
+
+
+inline bool operator==(char c1, const wxUniCharRef& c2) { return c2 == c1; }
+inline bool operator==(wchar_t c1, const wxUniCharRef& c2) { return c2 == c1; }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline bool operator==(wint_t c1, const wxUniCharRef& c2) { return c2 == c1; }
+#endif
+inline bool operator==(const wxUniChar& c1, const wxUniCharRef& c2) { return c2 == c1; }
+
+inline bool operator!=(char c1, const wxUniCharRef& c2) { return c2 != c1; }
+inline bool operator!=(wchar_t c1, const wxUniCharRef& c2) { return c2 != c1; }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline bool operator!=(wint_t c1, const wxUniCharRef& c2) { return c2 != c1; }
+#endif
+inline bool operator!=(const wxUniChar& c1, const wxUniCharRef& c2) { return c2 != c1; }
+
+inline bool operator>(char c1, const wxUniCharRef& c2) { return c2 < c1; }
+inline bool operator>(wchar_t c1, const wxUniCharRef& c2) { return c2 < c1; }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline bool operator>(wint_t c1, const wxUniCharRef& c2) { return c2 < c1; }
+#endif
+inline bool operator>(const wxUniChar& c1, const wxUniCharRef& c2) { return c2 < c1; }
+
+inline bool operator<(char c1, const wxUniCharRef& c2) { return c2 > c1; }
+inline bool operator<(wchar_t c1, const wxUniCharRef& c2) { return c2 > c1; }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline bool operator<(wint_t c1, const wxUniCharRef& c2) { return c2 > c1; }
+#endif
+inline bool operator<(const wxUniChar& c1, const wxUniCharRef& c2) { return c2 > c1; }
+
+inline bool operator>=(char c1, const wxUniCharRef& c2) { return c2 <= c1; }
+inline bool operator>=(wchar_t c1, const wxUniCharRef& c2) { return c2 <= c1; }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline bool operator>=(wint_t c1, const wxUniCharRef& c2) { return c2 <= c1; }
+#endif
+inline bool operator>=(const wxUniChar& c1, const wxUniCharRef& c2) { return c2 <= c1; }
+
+inline bool operator<=(char c1, const wxUniCharRef& c2) { return c2 >= c1; }
+inline bool operator<=(wchar_t c1, const wxUniCharRef& c2) { return c2 >= c1; }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline bool operator<=(wint_t c1, const wxUniCharRef& c2) { return c2 >= c1; }
+#endif
+inline bool operator<=(const wxUniChar& c1, const wxUniCharRef& c2) { return c2 >= c1; }
+
+inline int operator-(char c1, const wxUniCharRef& c2) { return -(c2 - c1); }
+inline int operator-(wchar_t c1, const wxUniCharRef& c2) { return -(c2 - c1); }
+#ifndef wxWINT_T_IS_TYPEDEF
+inline int operator-(wint_t c1, const wxUniCharRef& c2) { return -(c2 - c1); }
+#endif
+inline int operator-(const wxUniChar& c1, const wxUniCharRef& c2) { return -(c2 - c1); }
+
+#endif // __cplusplus
projects / wxWidgets.git / blobdiff