X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/266b635a2862975cb4a470e72d6d4d2f8e637f14..b40b0f5b204d59bbc1d3e66c5bba192b878469a6:/src/common/string.cpp

diff --git a/src/common/string.cpp b/src/common/string.cpp
index 9582bca6d9..29dc8d60da 100644
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -107,7 +107,7 @@ extern const wxChar WXDLLEXPORT *wxEmptyString = &g_strEmpty.dummy;
 //       function wxVsnprintfA (A for ANSI), should also find one for Unicode
 //       strings in Unicode build
 #ifdef __WXMSW__
-    #if defined(__VISUALC__) || defined(wxUSE_NORLANDER_HEADERS)
+    #if (defined(__VISUALC__) || defined(wxUSE_NORLANDER_HEADERS)) && !defined(__MINGW32__)
         #define wxVsnprintfA     _vsnprintf
     #endif
 #else   // !Windows
@@ -200,7 +200,15 @@ extern int WXDLLEXPORT wxVsnprintf(wxChar *buf, size_t len,
 
     return iLen;
 #else // ANSI
-    return wxVsnprintfA(buf, len, format, argptr);
+    // vsnprintf() will not terminate the string with '\0' if there is not
+    // enough place, but we want the string to always be NUL terminated
+    int rc = wxVsnprintfA(buf, len - 1, format, argptr);
+    if ( rc == -1 )
+    {
+        buf[len] = 0;
+    }
+
+    return rc;
 #endif // Unicode/ANSI
 }
 
@@ -352,8 +360,13 @@ wxString::wxString(const wchar_t *pwz)
 // allocates memory needed to store a C string of length nLen
 void wxString::AllocBuffer(size_t nLen)
 {
-  wxASSERT( nLen >  0         );    //
-  wxASSERT( nLen <= INT_MAX-1 );    // max size (enough room for 1 extra)
+  // allocating 0 sized buffer doesn't make sense, all empty strings should
+  // reuse g_strEmpty
+  wxASSERT( nLen >  0 );
+
+  // make sure that we don't overflow
+  wxASSERT( nLen < (INT_MAX / sizeof(wxChar)) -
+                   (sizeof(wxStringData) + EXTRA_ALLOC + 1) );
 
   STATISTICS_ADD(Length, nLen);
 
@@ -1020,6 +1033,49 @@ int wxString::Find(const wxChar *pszSub) const
   return (psz == NULL) ? wxNOT_FOUND : psz - (const wxChar*) m_pchData;
 }
 
+// ----------------------------------------------------------------------------
+// conversion to numbers
+// ----------------------------------------------------------------------------
+
+bool wxString::ToLong(long *val) const
+{
+    wxCHECK_MSG( val, FALSE, _T("NULL pointer in wxString::ToLong") );
+
+    const wxChar *start = c_str();
+    wxChar *end;
+    *val = wxStrtol(start, &end, 10);
+
+    // return TRUE only if scan was stopped by the terminating NUL and if the
+    // string was not empty to start with
+    return !*end && (end != start);
+}
+
+bool wxString::ToULong(unsigned long *val) const
+{
+    wxCHECK_MSG( val, FALSE, _T("NULL pointer in wxString::ToULong") );
+
+    const wxChar *start = c_str();
+    wxChar *end;
+    *val = wxStrtoul(start, &end, 10);
+
+    // return TRUE only if scan was stopped by the terminating NUL and if the
+    // string was not empty to start with
+    return !*end && (end != start);
+}
+
+bool wxString::ToDouble(double *val) const
+{
+    wxCHECK_MSG( val, FALSE, _T("NULL pointer in wxString::ToDouble") );
+
+    const wxChar *start = c_str();
+    wxChar *end;
+    *val = wxStrtod(start, &end);
+
+    // return TRUE only if scan was stopped by the terminating NUL and if the
+    // string was not empty to start with
+    return !*end && (end != start);
+}
+
 // ---------------------------------------------------------------------------
 // stream-like operators
 // ---------------------------------------------------------------------------
@@ -1051,6 +1107,28 @@ wxString& wxString::operator<<(double d)
 // formatted output
 // ---------------------------------------------------------------------------
 
+/* static */
+wxString wxString::Format(const wxChar *pszFormat, ...)
+{
+    va_list argptr;
+    va_start(argptr, pszFormat);
+
+    wxString s;
+    s.PrintfV(pszFormat, argptr);
+
+    va_end(argptr);
+
+    return s;
+}
+
+/* static */
+wxString wxString::FormatV(const wxChar *pszFormat, va_list argptr)
+{
+    wxString s;
+    s.Printf(pszFormat, argptr);
+    return s;
+}
+
 int wxString::Printf(const wxChar *pszFormat, ...)
 {
   va_list argptr;
@@ -1635,17 +1713,6 @@ size_t wxString::find_last_not_of(wxChar ch, size_t nStart) const
     return npos;
 }
 
-wxString wxString::substr(size_t nStart, size_t nLen) const
-{
-  // npos means 'take all'
-  if ( nLen == npos )
-    nLen = 0;
-
-  wxASSERT( nStart + nLen <= Len() );
-
-  return wxString(c_str() + nStart, nLen == npos ? 0 : nLen);
-}
-
 wxString& wxString::erase(size_t nStart, size_t nLen)
 {
   wxString strTmp(c_str(), nStart);
@@ -1740,20 +1807,8 @@ void wxArrayString::Copy(const wxArrayString& src)
   if ( src.m_nCount > ARRAY_DEFAULT_INITIAL_SIZE )
     Alloc(src.m_nCount);
 
-  // we can't just copy the pointers here because otherwise we would share
-  // the strings with another array because strings are ref counted
-#if 0
-  if ( m_nCount != 0 )
-    memcpy(m_pItems, src.m_pItems, m_nCount*sizeof(wxChar *));
-#endif // 0
-
   for ( size_t n = 0; n < src.m_nCount; n++ )
     Add(src[n]);
-
-  // if the other array is auto sorted too, we're already sorted, but
-  // otherwise we should rearrange the items
-  if ( m_autoSort && !src.m_autoSort )
-    Sort();
 }
 
 // grow the array