Set svn properties on .cpp files.

[wxWidgets.git] / src / common / string.cpp

diff --git a/src/common/string.cpp b/src/common/string.cpp
index dcac014916affa78c76d317829b52d2a74ced9d3..a0d42cb42f520792cd1bd7191f3fc11d1a27dd68 100644 (file)
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -24,6 +24,7 @@
 #ifndef WX_PRECOMP
     #include "wx/string.h"
     #include "wx/wxcrtvararg.h"
+    #include "wx/intl.h"
     #include "wx/log.h"
 #endif
 
@@ -44,6 +45,10 @@
     #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
@@ -1079,9 +1084,15 @@ size_t wxString::find_last_not_of(const wxOtherCharType* sz, size_t nStart,
 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,
+    // Prefer to use CompareString() if available as it's more efficient than
+    // doing it manually or even using wxStricmp() (see #10375)
+    //
+    // Also note that not using NORM_STRINGSORT may result in not having a
+    // strict weak ordering (e.g. s1 < s2 and s2 < s3 but s3 < s1) and so break
+    // algorithms such as std::sort that rely on it. It's also more consistent
+    // with the fall back version below.
+    switch ( ::CompareString(LOCALE_USER_DEFAULT,
+                             NORM_IGNORECASE | SORT_STRINGSORT,
                              m_impl.c_str(), m_impl.length(),
                              s.m_impl.c_str(), s.m_impl.length()) )
     {
@@ -1727,7 +1738,87 @@ bool wxString::ToCDouble(double *pVal) const
     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