#ifndef WX_PRECOMP
#include "wx/string.h"
#include "wx/wxcrtvararg.h"
+ #include "wx/intl.h"
#include "wx/log.h"
#endif
#include "wx/msw/wrapwin.h"
#endif // __WXMSW__
+#if wxUSE_STD_IOSTREAM
+ #include <sstream>
+#endif
+
// string handling functions used by wxString:
#if wxUSE_UNICODE_UTF8
#define wxStringMemcpy memcpy
int wxString::CmpNoCase(const wxString& s) const
{
-#if defined(__WXMSW__) && !wxUSE_UNICODE_UTF8
- // prefer to use CompareString() if available as it's more efficient than
- // doing it manual or even using wxStricmp() (see #10375)
- switch ( ::CompareString(LOCALE_USER_DEFAULT, NORM_IGNORECASE,
- m_impl.c_str(), m_impl.length(),
- s.m_impl.c_str(), s.m_impl.length()) )
+#if !wxUSE_UNICODE_UTF8
+ // We compare NUL-delimited chunks of the strings inside the loop. We will
+ // do as many iterations as there are embedded NULs in the string, i.e.
+ // usually we will run it just once.
+
+ typedef const wxStringImpl::value_type *pchar_type;
+ const pchar_type thisBegin = m_impl.c_str();
+ const pchar_type thatBegin = s.m_impl.c_str();
+
+ const pchar_type thisEnd = thisBegin + m_impl.length();
+ const pchar_type thatEnd = thatBegin + s.m_impl.length();
+
+ pchar_type thisCur = thisBegin;
+ pchar_type thatCur = thatBegin;
+
+ int rc;
+ for ( ;; )
{
- case CSTR_LESS_THAN:
- return -1;
+ // Compare until the next NUL, if the strings differ this is the final
+ // result.
+ rc = wxStricmp(thisCur, thatCur);
+ if ( rc )
+ break;
- case CSTR_EQUAL:
- return 0;
+ const size_t lenChunk = wxStrlen(thisCur);
+ thisCur += lenChunk;
+ thatCur += lenChunk;
- case CSTR_GREATER_THAN:
- return 1;
+ // Skip all the NULs as wxStricmp() doesn't handle them.
+ for ( ; !*thisCur; thisCur++, thatCur++ )
+ {
+ // Check if we exhausted either of the strings.
+ if ( thisCur == thisEnd )
+ {
+ // This one is exhausted, is the other one too?
+ return thatCur == thatEnd ? 0 : -1;
+ }
- default:
- wxFAIL_MSG( "unexpected CompareString() return value" );
- // fall through
+ if ( thatCur == thatEnd )
+ {
+ // Because of the test above we know that this one is not
+ // exhausted yet so it's greater than the other one that is.
+ return 1;
+ }
- case 0:
- wxLogLastError("CompareString");
- // use generic code below
+ if ( *thatCur )
+ {
+ // Anything non-NUL is greater than NUL.
+ return -1;
+ }
+ }
}
-#endif // __WXMSW__ && !wxUSE_UNICODE_UTF8
- // do the comparison manually: notice that we can't use wxStricmp() as it
- // doesn't handle embedded NULs
+ return rc;
+#else // wxUSE_UNICODE_UTF8
+ // CRT functions can't be used for case-insensitive comparison of UTF-8
+ // strings so do it in the naive, simple and inefficient way.
// FIXME-UTF8: use wxUniChar::ToLower/ToUpper once added
const_iterator i1 = begin();
else if ( len1 > len2 )
return 1;
return 0;
+#endif // !wxUSE_UNICODE_UTF8/wxUSE_UNICODE_UTF8
}
// get all characters before the first occurrence of ch
// (returns the whole string if ch not found)
-wxString wxString::BeforeFirst(wxUniChar ch) const
+wxString wxString::BeforeFirst(wxUniChar ch, wxString *rest) const
{
int iPos = Find(ch);
if ( iPos == wxNOT_FOUND )
- iPos = length();
+ {
+ iPos = length();
+ if ( rest )
+ rest->clear();
+ }
+ else
+ {
+ if ( rest )
+ rest->assign(*this, iPos + 1, npos);
+ }
+
return wxString(*this, 0, iPos);
}
/// get all characters before the last occurrence of ch
/// (returns empty string if ch not found)
-wxString wxString::BeforeLast(wxUniChar ch) const
+wxString wxString::BeforeLast(wxUniChar ch, wxString *rest) const
{
wxString str;
int iPos = Find(ch, true);
- if ( iPos != wxNOT_FOUND && iPos != 0 )
- str = wxString(c_str(), iPos);
+ if ( iPos != wxNOT_FOUND )
+ {
+ if ( iPos != 0 )
+ str.assign(*this, 0, iPos);
+
+ if ( rest )
+ rest->assign(*this, iPos + 1, npos);
+ }
+ else
+ {
+ if ( rest )
+ *rest = *this;
+ }
return str;
}
WX_STRING_TO_X_TYPE_END
}
-#endif // wxUSE_XLOCALE
+#else // wxUSE_XLOCALE
+
+// Provide implementation of these functions even when wxUSE_XLOCALE is
+// disabled, we still need them in wxWidgets internal code.
+
+// For integers we just assume the current locale uses the same number
+// representation as the C one as there is nothing else we can do.
+bool wxString::ToCLong(long *pVal, int base) const
+{
+ return ToLong(pVal, base);
+}
+
+bool wxString::ToCULong(unsigned long *pVal, int base) const
+{
+ return ToULong(pVal, base);
+}
+
+// For floating point numbers we have to handle the problem of the decimal
+// point which is different in different locales.
+bool wxString::ToCDouble(double *pVal) const
+{
+ // Create a copy of this string using the decimal point instead of whatever
+ // separator the current locale uses.
+#if wxUSE_INTL
+ wxString sep = wxLocale::GetInfo(wxLOCALE_DECIMAL_POINT,
+ wxLOCALE_CAT_NUMBER);
+ if ( sep == "." )
+ {
+ // We can avoid an unnecessary string copy in this case.
+ return ToDouble(pVal);
+ }
+#else // !wxUSE_INTL
+ // We don't know what the current separator is so it might even be a point
+ // already, try to parse the string as a double:
+ if ( ToDouble(pVal) )
+ {
+ // It must have been the point, nothing else to do.
+ return true;
+ }
+
+ // Try to guess the separator, using the most common alternative value.
+ wxString sep(",");
+#endif // wxUSE_INTL/!wxUSE_INTL
+ wxString cstr(*this);
+ cstr.Replace(".", sep);
+
+ return cstr.ToDouble(pVal);
+}
+
+#endif // wxUSE_XLOCALE/!wxUSE_XLOCALE
+
+// ----------------------------------------------------------------------------
+// number to string conversion
+// ----------------------------------------------------------------------------
+
+/* static */
+wxString wxString::FromCDouble(double val)
+{
+#if wxUSE_STD_IOSTREAM && wxUSE_STD_STRING
+ // We assume that we can use the ostream and not wstream for numbers.
+ wxSTD ostringstream os;
+ os << val;
+ return os.str();
+#else // wxUSE_STD_IOSTREAM
+ // Can't use iostream locale support, fall back to the manual method
+ // instead.
+ wxString s = FromDouble(val);
+#if wxUSE_INTL
+ wxString sep = wxLocale::GetInfo(wxLOCALE_DECIMAL_POINT,
+ wxLOCALE_CAT_NUMBER);
+#else // !wxUSE_INTL
+ // As above, this is the most common alternative value. Notice that here it
+ // doesn't matter if we guess wrongly and the current separator is already
+ // ".": we'll just waste a call to Replace() in this case.
+ wxString sep(",");
+#endif // wxUSE_INTL/!wxUSE_INTL
+
+ s.Replace(sep, ".");
+ return s;
+#endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
+}
// ---------------------------------------------------------------------------
// formatted output
if ( !buf )
{
// out of memory
-
- // in UTF-8 build, leaving uninitialized junk in the buffer
- // could result in invalid non-empty UTF-8 string, so just
- // reset the string to empty on failure:
- buf[0] = '\0';
return -1;
}
projects / wxWidgets.git / blobdiff