don't give empty message box if Parse(FALSE) was called and there was --help on the...

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

diff --git a/src/common/strconv.cpp b/src/common/strconv.cpp
index a7db44b730d07506228f03468ec257e8164289dc..25620c07c58b180801d5d777172e04623b4eaa6a 100644 (file)
--- a/src/common/strconv.cpp
+++ b/src/common/strconv.cpp
@@ -54,7 +54,7 @@
     WXDLLEXPORT_DATA(wxCSConv) wxConvLocal((const wxChar *)NULL);
 #else
     // stand-ins in absence of wchar_t
-    WXDLLEXPORT_DATA(wxMBConv) wxConvLibc, wxConvFile;
+    WXDLLEXPORT_DATA(wxMBConv) wxConvLibc, wxConvFile, wxConvLocal;
 #endif // wxUSE_WCHAR_T
 
 WXDLLEXPORT_DATA(wxMBConv *) wxConvCurrent = &wxConvLibc;
@@ -67,7 +67,7 @@ public:
     virtual void OnExit()
     {
 #if wxUSE_WCHAR_T
-        wxConvLocal.Clear();
+         wxConvLocal.Clear();
 #endif
     }
 
@@ -195,7 +195,6 @@ size_t wxMBConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
     {
         for (size_t i = 0; i < strlen( psz )+1; i++)
             buf[i] = (wchar_t) psz[i];
-        // printf( "libc %s\n", buf );
         return strlen( psz );
     }
     else
@@ -214,7 +213,6 @@ size_t wxMBConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const
     {
         for (size_t i = 0; i < wxStrlen( psz )+1; i++)
             buf[i] = (char) psz[i];
-        // printf( "libc %s\n", buf );
         return wxStrlen( psz );
     }
     else
@@ -241,20 +239,16 @@ const wxWCharBuffer wxMBConv::cMB2WC(const char *psz) const
         return wxWCharBuffer((wchar_t *) NULL);
 }
 
-const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *psz) const
+const wxCharBuffer wxMBConv::cWC2MB(const wchar_t *pwz) const
 {
-    if (psz)
-    {
-        size_t nLen = WC2MB((char *) NULL, psz, 0);  // return value excludes /0
-        if (nLen == (size_t)-1)
-            return wxCharBuffer((char *) NULL);
-        wxCharBuffer buf(nLen);                      // this allocates nLen+1
-        WC2MB((char *)(const char *) buf, psz, nLen+1);
-        // printf( "str %s\n", (const char*) buf );
-        return buf;
-    }
-    else
-        return wxCharBuffer((char *) NULL);
+    // return value excludes NUL
+    size_t nLen = pwz ? WC2MB((char *) NULL, pwz, 0) : (size_t)-1;
+    if (nLen == (size_t)-1)
+        return wxCharBuffer((const char *)NULL);
+
+    wxCharBuffer buf(nLen);                      // this allocates nLen+1
+    WC2MB((char *)(const char *) buf, pwz, nLen+1);
+    return buf;
 }
 
 // ----------------------------------------------------------------------------
@@ -662,8 +656,11 @@ size_t IC_CharSet::MB2WC(wchar_t *buf, const char *psz, size_t n)
             WC_BSWAP(buf /* _not_ bufPtr */, res)
         }
         
-        // iconv doesn't seem to set the trailing 0
-        buf[res] = 0;
+        // NB: iconv was given only strlen(psz) characters on input, and so
+        //     it couldn't convert the trailing zero. Let's do it ourselves
+        //     if there's some room left for it in the output buffer.
+        if (res < n)
+            buf[res] = 0;
     }
     else
     {
@@ -724,9 +721,11 @@ size_t IC_CharSet::WC2MB(char *buf, const wchar_t *psz, size_t n)
 
         res = n-outbuf;
         
-        // iconv() doesn't set the trailing zero, but moves buf to
-        // that position
-        buf[0] = 0;
+        // NB: iconv was given only wcslen(psz) characters on input, and so
+        //     it couldn't convert the trailing zero. Let's do it ourselves
+        //     if there's some room left for it in the output buffer.
+        if (res < n)
+            buf[0] = 0;
     }
     else
     {
@@ -780,7 +779,11 @@ public:
     size_t MB2WC(wchar_t *buf, const char *psz, size_t n)
     {
         size_t len =
+#ifdef __WXWINE__
+            MultiByteToWideChar(m_CodePage, 0, psz, -1, (WCHAR*) buf, buf ? n : 0);
+#else
             MultiByteToWideChar(m_CodePage, 0, psz, -1, buf, buf ? n : 0);
+#endif
         //VS: returns # of written chars for buf!=NULL and *size*
         //    needed buffer for buf==NULL
         return len ? (buf ? len : len-1) : (size_t)-1;
@@ -788,8 +791,13 @@ public:
 
     size_t WC2MB(char *buf, const wchar_t *psz, size_t n)
     {
+#ifdef __WXWINE__
+        size_t len = WideCharToMultiByte(m_CodePage, 0, (const WCHAR*) psz, -1, buf,
+                                         buf ? n : 0, NULL, NULL);
+#else
         size_t len = WideCharToMultiByte(m_CodePage, 0, psz, -1, buf,
                                          buf ? n : 0, NULL, NULL);
+#endif
         //VS: returns # of written chars for buf!=NULL and *size*
         //    needed buffer for buf==NULL
         return len ? (buf ? len : len-1) : (size_t)-1;