// Lightweight object returned by wxString::c_str() and implicitly convertible
// to either const char* or const wchar_t*.
-class WXDLLIMPEXP_BASE wxCStrData
+class wxCStrData
{
private:
// Ctors; for internal use by wxString and wxCStrData only
inline ~wxCStrData();
- // methods defined inline below must be declared inline or mingw32 3.4.5
- // warns about "<symbol> defined locally after being referenced with
- // dllimport linkage"
-#if wxUSE_UNICODE_WCHAR
- inline
-#endif
- const wchar_t* AsWChar() const;
+ // AsWChar() and AsChar() can't be defined here as they use wxString and so
+ // must come after it and because of this won't be inlined when called from
+ // wxString methods (without a lot of work to extract these wxString methods
+ // from inside the class itself). But we still define them being inline
+ // below to let compiler inline them from elsewhere. And because of this we
+ // must declare them as inline here because otherwise some compilers give
+ // warnings about them, e.g. mingw32 3.4.5 warns about "<symbol> defined
+ // locally after being referenced with dllimport linkage" while IRIX
+ // mipsPro 7.4 warns about "function declared inline after being called".
+ inline const wchar_t* AsWChar() const;
operator const wchar_t*() const { return AsWChar(); }
-#if !wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY
- inline
-#endif
- const char* AsChar() const;
+ inline const char* AsChar() const;
const unsigned char* AsUnsignedChar() const
{ return (const unsigned char *) AsChar(); }
operator const char*() const { return AsChar(); }
wxCStrData operator-(ptrdiff_t n) const
{
wxASSERT_MSG( n <= (ptrdiff_t)m_offset,
- _T("attempt to construct address before the beginning of the string") );
+ wxT("attempt to construct address before the beginning of the string") );
return wxCStrData(m_str, m_offset - n, m_owned);
}
#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
// "non dll-interface class 'wxStringPrintfMixin' used as base interface
// for dll-interface class 'wxString'" -- this is OK in our case
+ #pragma warning (push)
#pragma warning (disable:4275)
#endif
iterator operator-(ptrdiff_t n) const
{ return iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); }
+ // Normal iterators need to be comparable with the const_iterators so
+ // declare the comparison operators and implement them below after the
+ // full const_iterator declaration.
+ bool operator==(const const_iterator& i) const;
+ bool operator!=(const const_iterator& i) const;
+ bool operator<(const const_iterator& i) const;
+ bool operator>(const const_iterator& i) const;
+ bool operator<=(const const_iterator& i) const;
+ bool operator>=(const const_iterator& i) const;
+
private:
- iterator(wxString *str, underlying_iterator ptr)
- : m_cur(ptr), m_node(str, &m_cur) {}
+ iterator(wxString *wxstr, underlying_iterator ptr)
+ : m_cur(ptr), m_node(wxstr, &m_cur) {}
wxString* str() const { return const_cast<wxString*>(m_node.m_str); }
const_iterator operator-(ptrdiff_t n) const
{ return const_iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); }
+ // Notice that comparison operators taking non-const iterator are not
+ // needed here because of the implicit conversion from non-const iterator
+ // to const ones ensure that the versions for const_iterator declared
+ // inside WX_STR_ITERATOR_IMPL can be used.
+
private:
// for internal wxString use only:
- const_iterator(const wxString *str, underlying_iterator ptr)
- : m_cur(ptr), m_node(str, &m_cur) {}
+ const_iterator(const wxString *wxstr, underlying_iterator ptr)
+ : m_cur(ptr), m_node(wxstr, &m_cur) {}
const wxString* str() const { return m_node.m_str; }
iterator operator-(ptrdiff_t n) const
{ return iterator(wxStringOperations::AddToIter(m_cur, -n)); }
+ // As in UTF-8 case above, define comparison operators taking
+ // const_iterator too.
+ bool operator==(const const_iterator& i) const;
+ bool operator!=(const const_iterator& i) const;
+ bool operator<(const const_iterator& i) const;
+ bool operator>(const const_iterator& i) const;
+ bool operator<=(const const_iterator& i) const;
+ bool operator>=(const const_iterator& i) const;
+
private:
// for internal wxString use only:
iterator(underlying_iterator ptr) : m_cur(ptr) {}
const_iterator operator-(ptrdiff_t n) const
{ return const_iterator(wxStringOperations::AddToIter(m_cur, -n)); }
+ // As in UTF-8 case above, we don't need comparison operators taking
+ // iterator because we have an implicit conversion from iterator to
+ // const_iterator so the operators declared by WX_STR_ITERATOR_IMPL will
+ // be used.
+
private:
// for internal wxString use only:
const_iterator(underlying_iterator ptr) : m_cur(ptr) {}
// Unlike ctor from std::string, we provide conversion to std::string only
// if wxUSE_STL and not merely wxUSE_STD_STRING (which is on by default),
- // because it conflicts with operator const char/wchar_t*:
-#if wxUSE_STL
+ // because it conflicts with operator const char/wchar_t* but we still
+ // provide explicit conversions to std::[w]string for convenience in any case
+#if wxUSE_STD_STRING
+ // We can avoid a copy if we already use this string type internally,
+ // otherwise we create a copy on the fly:
#if wxUSE_UNICODE_WCHAR && wxUSE_STL_BASED_WXSTRING
- // wxStringImpl is std::string in the encoding we want
- operator const wxStdWideString&() const { return m_impl; }
+ #define wxStringToStdWstringRetType const wxStdWideString&
+ const wxStdWideString& ToStdWstring() const { return m_impl; }
#else
// wxStringImpl is either not std::string or needs conversion
- operator wxStdWideString() const
+ #define wxStringToStdWstringRetType wxStdWideString
+ wxStdWideString ToStdWstring() const
{
+#if wxUSE_UNICODE_WCHAR
+ wxScopedWCharBuffer buf =
+ wxScopedWCharBuffer::CreateNonOwned(m_impl.c_str(), m_impl.length());
+#else // !wxUSE_UNICODE_WCHAR
wxScopedWCharBuffer buf(wc_str());
+#endif
+
return wxStdWideString(buf.data(), buf.length());
}
#endif
#if (!wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY) && wxUSE_STL_BASED_WXSTRING
// wxStringImpl is std::string in the encoding we want
- operator const std::string&() const { return m_impl; }
+ #define wxStringToStdStringRetType const std::string&
+ const std::string& ToStdString() const { return m_impl; }
#else
// wxStringImpl is either not std::string or needs conversion
- operator std::string() const
+ #define wxStringToStdStringRetType std::string
+ std::string ToStdString() const
{
wxScopedCharBuffer buf(mb_str());
return std::string(buf.data(), buf.length());
}
#endif
+
+#if wxUSE_STL
+ // In wxUSE_STL case we also provide implicit conversions as there is no
+ // ambiguity with the const char/wchar_t* ones as they are disabled in this
+ // build (for consistency with std::basic_string<>)
+ operator wxStringToStdStringRetType() const { return ToStdString(); }
+ operator wxStringToStdWstringRetType() const { return ToStdWstring(); }
#endif // wxUSE_STL
+#undef wxStringToStdStringRetType
+#undef wxStringToStdWstringRetType
+
+#endif // wxUSE_STD_STRING
+
wxString Clone() const
{
// make a deep copy of the string, i.e. the returned string will have
// get last character
wxUniChar Last() const
{
- wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
+ wxASSERT_MSG( !empty(), wxT("wxString: index out of bounds") );
return *rbegin();
}
// get writable last character
wxUniCharRef Last()
{
- wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
+ wxASSERT_MSG( !empty(), wxT("wxString: index out of bounds") );
return *rbegin();
}
// version for NUL-terminated data:
static wxString From8BitData(const char *data)
{ return wxString(data); }
- const char *To8BitData() const { return c_str(); }
+ const wxScopedCharBuffer To8BitData() const
+ { return wxScopedCharBuffer::CreateNonOwned(wx_str(), length()); }
#endif // Unicode/ANSI
// conversions with (possible) format conversions: have to return a
{
#if WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
wxASSERT_MSG( s.IsValid(),
- _T("did you forget to call UngetWriteBuf()?") );
+ wxT("did you forget to call UngetWriteBuf()?") );
#endif
append(s);
// stream-like functions
// insert an int into string
wxString& operator<<(int i)
- { return (*this) << Format(_T("%d"), i); }
+ { return (*this) << Format(wxT("%d"), i); }
// insert an unsigned int into string
wxString& operator<<(unsigned int ui)
- { return (*this) << Format(_T("%u"), ui); }
+ { return (*this) << Format(wxT("%u"), ui); }
// insert a long into string
wxString& operator<<(long l)
- { return (*this) << Format(_T("%ld"), l); }
+ { return (*this) << Format(wxT("%ld"), l); }
// insert an unsigned long into string
wxString& operator<<(unsigned long ul)
- { return (*this) << Format(_T("%lu"), ul); }
-#if defined wxLongLong_t && !defined wxLongLongIsLong
+ { return (*this) << Format(wxT("%lu"), ul); }
+#ifdef wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
// insert a long long if they exist and aren't longs
wxString& operator<<(wxLongLong_t ll)
{
- const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("d");
- return (*this) << Format(fmt, ll);
+ return (*this) << Format("%" wxLongLongFmtSpec "d", ll);
}
// insert an unsigned long long
wxString& operator<<(wxULongLong_t ull)
{
- const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("u");
- return (*this) << Format(fmt , ull);
+ return (*this) << Format("%" wxLongLongFmtSpec "u" , ull);
}
-#endif // wxLongLong_t && !wxLongLongIsLong
+#endif // wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
// insert a float into string
wxString& operator<<(float f)
- { return (*this) << Format(_T("%f"), f); }
+ { return (*this) << Format(wxT("%f"), f); }
// insert a double into string
wxString& operator<<(double d)
- { return (*this) << Format(_T("%g"), d); }
+ { return (*this) << Format(wxT("%g"), d); }
// string comparison
// case-sensitive comparison (returns a value < 0, = 0 or > 0)
// get last nCount characters
wxString Right(size_t nCount) const;
// get all characters before the first occurrence of ch
- // (returns the whole string if ch not found)
- wxString BeforeFirst(wxUniChar ch) const;
+ // (returns the whole string if ch not found) and also put everything
+ // following the first occurrence of ch into rest if it's non-NULL
+ wxString BeforeFirst(wxUniChar ch, wxString *rest = NULL) const;
// get all characters before the last occurrence of ch
- // (returns empty string if ch not found)
- wxString BeforeLast(wxUniChar ch) const;
+ // (returns empty string if ch not found) and also put everything
+ // following the last occurrence of ch into rest if it's non-NULL
+ wxString BeforeLast(wxUniChar ch, wxString *rest = NULL) const;
// get all characters after the first occurrence of ch
// (returns empty string if ch not found)
wxString AfterFirst(wxUniChar ch) const;
// convert to a double
bool ToDouble(double *val) const;
-#if wxUSE_XLOCALE
// conversions to numbers using C locale
// convert to a signed integer
bool ToCLong(long *val, int base = 10) const;
bool ToCULong(unsigned long *val, int base = 10) const;
// convert to a double
bool ToCDouble(double *val) const;
-#endif
-
+
+ // create a string representing the given floating point number
+ // in the current locale
+ static wxString FromDouble(double val)
+ { return wxString::Format(wxS("%g"), val); }
+ // in C locale
+ static wxString FromCDouble(double val);
+
#ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN
// formatted input/output
// as sprintf(), returns the number of characters written or < 0 on error
CreateConstIterator(last).impl())
{
wxASSERT_MSG( first.m_str == last.m_str,
- _T("pointers must be into the same string") );
+ wxT("pointers must be into the same string") );
}
#endif // WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
// about it and doing it like this, i.e. having a separate AsChar(),
// allows us to avoid the creation and destruction of a temporary buffer
// when using wxCStrData without duplicating any code
- AsChar(conv);
+ if ( !AsChar(conv) )
+ {
+ // although it would be probably more correct to return NULL buffer
+ // from here if the conversion fails, a lot of existing code doesn't
+ // expect mb_str() (or wc_str()) to ever return NULL so return an
+ // empty string otherwise to avoid crashes in it
+ //
+ // also, some existing code does check for the conversion success and
+ // so asserting here would be bad too -- even if it does mean that
+ // silently losing data is possible for badly written code
+ return wxScopedCharBuffer::CreateNonOwned("", 0);
+ }
return m_convertedToChar.AsScopedBuffer();
}
// wc_str() implementation helper
wxScopedWCharBuffer AsWCharBuf(const wxMBConv& conv) const
{
- AsWChar(conv);
+ if ( !AsWChar(conv) )
+ return wxScopedWCharBuffer::CreateNonOwned(L"", 0);
return m_convertedToWChar.AsScopedBuffer();
}
};
#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
- #pragma warning (default:4275)
+ #pragma warning (pop)
#endif
// string iterator operators that satisfy STL Random Access Iterator
inline bool operator!=(const wxString& s, char c) { return !s.IsSameAs(c); }
inline bool operator!=(const wxString& s, wchar_t c) { return !s.IsSameAs(c); }
+
+// wxString iterators comparisons
+inline bool wxString::iterator::operator==(const const_iterator& i) const
+ { return i == *this; }
+inline bool wxString::iterator::operator!=(const const_iterator& i) const
+ { return i != *this; }
+inline bool wxString::iterator::operator<(const const_iterator& i) const
+ { return i > *this; }
+inline bool wxString::iterator::operator>(const const_iterator& i) const
+ { return i < *this; }
+inline bool wxString::iterator::operator<=(const const_iterator& i) const
+ { return i >= *this; }
+inline bool wxString::iterator::operator>=(const const_iterator& i) const
+ { return i <= *this; }
+
// comparison with C string in Unicode build
#if wxUSE_UNICODE
inline wxUniChar wxCStrData::operator*() const
{
if ( m_str->empty() )
- return wxUniChar(_T('\0'));
+ return wxUniChar(wxT('\0'));
else
return (*m_str)[m_offset];
}
projects / wxWidgets.git / blobdiff