#include "wx/defs.h" // everybody should include this
-#ifndef __WXPALMOS5__
#if defined(__WXMAC__) || defined(__VISAGECPP__)
#include <ctype.h>
#endif
#ifdef HAVE_STRCASECMP_IN_STRINGS_H
#include <strings.h> // for strcasecmp()
#endif // HAVE_STRCASECMP_IN_STRINGS_H
-#endif // ! __WXPALMOS5__
#include "wx/wxcrtbase.h" // for wxChar, wxStrlen() etc.
#include "wx/strvararg.h"
// it would have to be re-tested and probably corrected
// CS: under OSX release builds the string destructor/cache cleanup sometimes
// crashes, disable until we find the true reason or a better workaround
-#if wxUSE_UNICODE_UTF8 && !defined(__WXMSW__) && !defined(__WXOSX__)
+#if wxUSE_UNICODE_UTF8 && !defined(__WINDOWS__) && !defined(__WXOSX__)
#define wxUSE_STRING_POS_CACHE 1
#else
#define wxUSE_STRING_POS_CACHE 0
} while ( c1 && (c1 == c2) );
return c1 - c2;
-#elif defined(__VISUALC__) || ( defined(__MWERKS__) && defined(__INTEL__) )
+#elif defined(__VISUALC__)
return _stricmp(psz1, psz2);
#elif defined(__SC__)
return _stricmp(psz1, psz2);
return stricmp(psz1, psz2);
#elif defined(__WXPM__)
return stricmp(psz1, psz2);
-#elif defined(__WXPALMOS__) || \
- defined(HAVE_STRCASECMP_IN_STRING_H) || \
+#elif defined(HAVE_STRCASECMP_IN_STRING_H) || \
defined(HAVE_STRCASECMP_IN_STRINGS_H) || \
defined(__GNUWIN32__)
return strcasecmp(psz1, psz2);
-#elif defined(__MWERKS__) && !defined(__INTEL__)
- register char c1, c2;
- do {
- c1 = tolower(*psz1++);
- c2 = tolower(*psz2++);
- } while ( c1 && (c1 == c2) );
-
- return c1 - c2;
#else
// almost all compilers/libraries provide this function (unfortunately under
// different names), that's why we don't implement our own which will surely
#undef WX_STR_ITERATOR_TAG
#undef WX_STR_ITERATOR_IMPL
+ // This method is mostly used by wxWidgets itself and return the offset of
+ // the given iterator in bytes relative to the start of the buffer
+ // representing the current string contents in the current locale encoding.
+ //
+ // It is inefficient as it involves converting part of the string to this
+ // encoding (and also unsafe as it simply returns 0 if the conversion fails)
+ // and so should be avoided if possible, wx itself only uses it to implement
+ // backwards-compatible API.
+ ptrdiff_t IterOffsetInMBStr(const const_iterator& i) const
+ {
+ const wxString str(begin(), i);
+
+ // This is logically equivalent to strlen(str.mb_str()) but avoids
+ // actually converting the string to multibyte and just computes the
+ // length that it would have after conversion.
+ size_t ofs = wxConvLibc.FromWChar(NULL, 0, str.wc_str(), str.length());
+ return ofs == wxCONV_FAILED ? 0 : static_cast<ptrdiff_t>(ofs);
+ }
+
friend class iterator;
friend class const_iterator;
}
#endif // wxUSE_STRING_POS_CACHE
- // even if we're not built with wxUSE_STL == 1 it is very convenient to allow
- // implicit conversions from std::string to wxString and vice verse as this
- // allows to use the same strings in non-GUI and GUI code, however we don't
- // want to unconditionally add this ctor as it would make wx lib dependent on
- // libstdc++ on some Linux versions which is bad, so instead we ask the
- // client code to define this wxUSE_STD_STRING symbol if they need it
+ // even if we're not built with wxUSE_STD_STRING_CONV_IN_WXSTRING == 1 it is
+ // very convenient to allow implicit conversions from std::string to wxString
+ // and vice verse as this allows to use the same strings in non-GUI and GUI
+ // code, however we don't want to unconditionally add this ctor as it would
+ // make wx lib dependent on libstdc++ on some Linux versions which is bad, so
+ // instead we ask the client code to define this wxUSE_STD_STRING symbol if
+ // they need it
#if wxUSE_STD_STRING
#if wxUSE_UNICODE_WCHAR
wxString(const wxStdWideString& str) : m_impl(str) {}
#endif
#endif // wxUSE_STD_STRING
- // 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* but we still
- // provide explicit conversions to std::[w]string for convenience in any case
+ // Also always provide explicit conversions to std::[w]string in any case,
+ // see below for the implicit ones.
#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:
}
#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<>)
+#if wxUSE_STD_STRING_CONV_IN_WXSTRING
+ // Implicit conversions to std::[w]string are not provided by default as
+ // they conflict with the implicit conversions to "const char/wchar_t *"
+ // which we use for backwards compatibility but do provide them if
+ // explicitly requested.
operator wxStringToStdStringRetType() const { return ToStdString(); }
operator wxStringToStdWstringRetType() const { return ToStdWstring(); }
-#endif // wxUSE_STL
+#endif // wxUSE_STD_STRING_CONV_IN_WXSTRING
#undef wxStringToStdStringRetType
#undef wxStringToStdWstringRetType
operator wxCStrData() const { return c_str(); }
// the first two operators conflict with operators for conversion to
- // std::string and they must be disabled in STL build; the next one only
- // makes sense if conversions to char* are also defined and not defining it
- // in STL build also helps us to get more clear error messages for the code
- // which relies on implicit conversion to char* in STL build
-#if !wxUSE_STL
+ // std::string and they must be disabled if those conversions are enabled;
+ // the next one only makes sense if conversions to char* are also defined
+ // and not defining it in STL build also helps us to get more clear error
+ // messages for the code which relies on implicit conversion to char* in
+ // STL build
+#if !wxUSE_STD_STRING_CONV_IN_WXSTRING
operator const char*() const { return c_str(); }
operator const wchar_t*() const { return c_str(); }
// wxWidgets versions: this is the same as conversion to const char * so it
// may fail!
operator const void*() const { return c_str(); }
-#endif // wxUSE_STL
+#endif // !wxUSE_STD_STRING_CONV_IN_WXSTRING
// identical to c_str(), for MFC compatibility
const wxCStrData GetData() const { return c_str(); }
return *this;
}
+ // This is a non-standard-compliant overload taking the first "len"
+ // characters of the source string.
wxString& assign(const wxString& str, size_t len)
{
+#if wxUSE_STRING_POS_CACHE
+ // It is legal to pass len > str.length() to wxStringImpl::assign() but
+ // by restricting it here we save some work for that function so it's not
+ // really less efficient and, at the same time, ensure that we don't
+ // cache invalid length.
+ const size_t lenSrc = str.length();
+ if ( len > lenSrc )
+ len = lenSrc;
+
wxSTRING_SET_CACHED_LENGTH(len);
+#endif // wxUSE_STRING_POS_CACHE
m_impl.assign(str.m_impl, 0, str.LenToImpl(len));
wxString& assign(const char *sz, size_t n)
{
- wxSTRING_SET_CACHED_LENGTH(n);
+ wxSTRING_INVALIDATE_CACHE();
SubstrBufFromMB str(ImplStr(sz, n));
m_impl.assign(str.data, str.len);
void DoUngetWriteBuf(size_t nLen)
{
- wxSTRING_SET_CACHED_LENGTH(nLen);
+ wxSTRING_INVALIDATE_CACHE();
m_impl.DoUngetWriteBuf(nLen);
}
projects / wxWidgets.git / blobdiff