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[wxWidgets.git] / src / common / wxchar.cpp
index 4da43cbd344c4b4aedef911b68ce41ef07990fb0..7e6c8f21f4146dd90f5f299df2faa07a867022f5 100644 (file)
@@ -6,7 +6,7 @@
 // Created:     09/04/99
 // RCS-ID:      $Id$
 // Copyright:   (c) wxWindows copyright
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
   #include <winnt.h>
 #endif
 
+#if defined(__MWERKS__) && __MSL__ >= 0x6000
+using namespace std ;
+#endif
+
 #if wxUSE_WCHAR_T
 size_t WXDLLEXPORT wxMB2WC(wchar_t *buf, const char *psz, size_t n)
 {
+  // assume that we have mbsrtowcs() too if we have wcsrtombs()
+#if HAVE_WCSRTOMBS
+  mbstate_t mbstate;
+  memset(&mbstate, 0, sizeof(mbstate_t));
+#endif
+
   if (buf) {
     if (!n || !*psz) {
       if (n) *buf = wxT('\0');
       return 0;
     }
+#ifdef HAVE_WCSRTOMBS
+    return mbsrtowcs(buf, &psz, n, &mbstate);
+#else
     return mbstowcs(buf, psz, n);
+#endif
   }
 
-  // assume that we have mbsrtowcs() too if we have wcsrtombs()
 #ifdef HAVE_WCSRTOMBS
-  mbstate_t mbstate;
   return mbsrtowcs((wchar_t *) NULL, &psz, 0, &mbstate);
-#else  // !GNU libc
+#else
   return mbstowcs((wchar_t *) NULL, psz, 0);
-#endif // GNU
+#endif
 }
 
 size_t WXDLLEXPORT wxWC2MB(char *buf, const wchar_t *pwz, size_t n)
 {
+#if HAVE_WCSRTOMBS
+  mbstate_t mbstate;
+  memset(&mbstate, 0, sizeof(mbstate_t));
+#endif
+
   if (buf) {
     if (!n || !*pwz) {
       // glibc2.1 chokes on null input
       if (n) *buf = '\0';
       return 0;
     }
+#if HAVE_WCSRTOMBS
+    return wcsrtombs(buf, &pwz, n, &mbstate);
+#else
     return wcstombs(buf, pwz, n);
+#endif
   }
 
 #if HAVE_WCSRTOMBS
-  mbstate_t mbstate;
   return wcsrtombs((char *) NULL, &pwz, 0, &mbstate);
-#else  // !GNU libc
+#else
   return wcstombs((char *) NULL, pwz, 0);
-#endif // GNU
+#endif
 }
 #endif // wxUSE_WCHAR_T
 
 bool WXDLLEXPORT wxOKlibc()
 {
-#if wxUSE_WCHAR_T && defined(__UNIX__) && defined(__GLIBC__)
+#if wxUSE_WCHAR_T && defined(__UNIX__) && defined(__GLIBC__) && !defined(__WINE__)
   // glibc 2.0 uses UTF-8 even when it shouldn't
   wchar_t res = 0;
   if ((MB_CUR_MAX == 2) &&
@@ -108,19 +128,27 @@ bool WXDLLEXPORT wxOKlibc()
   return TRUE;
 }
 
-#ifndef HAVE_WCSLEN
-size_t   WXDLLEXPORT wcslen(const wchar_t *s)
-{
-  size_t len = 0;
-  while (s[len]) len++;
-  return len;
-}
-#endif
-
 // ============================================================================
 // printf() functions business
 // ============================================================================
 
+// special test mode: define all functions below even if we don't really need
+// them to be able to test them
+#ifdef wxTEST_PRINTF
+    #undef wxFprintf
+    #undef wxPrintf
+    #undef wxSprintf
+    #undef wxVfprintf
+    #undef wxVsprintf
+    #undef wxVprintf
+    #undef wxVsnprintf_
+    #undef wxSnprintf_
+
+    #define wxNEED_WPRINTF
+
+    int wxVfprintf( FILE *stream, const wxChar *format, va_list argptr );
+#endif
+
 // ----------------------------------------------------------------------------
 // implement [v]snprintf() if the system doesn't provide a safe one
 // ----------------------------------------------------------------------------
@@ -135,9 +163,12 @@ int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
     // number of characters in the buffer so far, must be less than lenMax
     size_t lenCur = 0;
 
-    for (size_t n = 0; format[n]; n++)
+    for ( size_t n = 0; ; n++ )
     {
-        if (format[n] == wxT('%')) {
+        const wxChar chCur = format[n];
+
+        if ( chCur == wxT('%') )
+        {
             static char s_szFlags[256] = "%";
             size_t flagofs = 1;
             bool adj_left = FALSE,
@@ -147,7 +178,8 @@ int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
             int ilen = 0;
             size_t min_width = 0,
                    max_width = wxSTRING_MAXLEN;
-            do {
+            do
+            {
 
 #define CHECK_PREC \
                 if (in_prec && !prec_dot) \
@@ -163,18 +195,17 @@ int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
                 buf[lenCur++] = ch
 
 #define APPEND_STR(s) \
-                for ( const char *p = s; *p; p++ ) \
-                { \
-                    APPEND_CH((wchar_t)(*p)); \
-                }
-
-#define APPEND_WSTR(s) \
-                for ( const wchar_t *p = s; *p; p++ ) \
                 { \
-                    APPEND_CH(*p); \
+                    for ( const wxChar *p = s; *p; p++ ) \
+                    { \
+                        APPEND_CH(*p); \
+                    } \
                 }
 
-                switch (format[++n]) {
+                // what follows '%'?
+                const wxChar ch = format[++n];
+                switch ( ch )
+                {
                     case wxT('\0'):
                         APPEND_CH(_T('\0'));
 
@@ -192,57 +223,62 @@ int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
                     case wxT('+'):
                     case wxT('\''):
                         CHECK_PREC
-                        s_szFlags[flagofs++] = format[n];
+                        s_szFlags[flagofs++] = ch;
                         break;
 
                     case wxT('-'):
                         CHECK_PREC
                         adj_left = TRUE;
-                        s_szFlags[flagofs++] = format[n];
+                        s_szFlags[flagofs++] = ch;
                         break;
 
                     case wxT('.'):
                         CHECK_PREC
-                            in_prec = TRUE;
+                        in_prec = TRUE;
                         prec_dot = FALSE;
                         max_width = 0;
-                        // dot will be auto-added to s_szFlags if non-negative number follows
+                        // dot will be auto-added to s_szFlags if non-negative
+                        // number follows
                         break;
 
                     case wxT('h'):
                         ilen = -1;
                         CHECK_PREC
-                        s_szFlags[flagofs++] = format[n];
+                        s_szFlags[flagofs++] = ch;
                         break;
 
                     case wxT('l'):
                         ilen = 1;
                         CHECK_PREC
-                        s_szFlags[flagofs++] = format[n];
+                        s_szFlags[flagofs++] = ch;
                         break;
 
                     case wxT('q'):
                     case wxT('L'):
                         ilen = 2;
                         CHECK_PREC
-                        s_szFlags[flagofs++] = format[n];
+                        s_szFlags[flagofs++] = ch;
                         break;
 
                     case wxT('Z'):
                         ilen = 3;
                         CHECK_PREC
-                        s_szFlags[flagofs++] = format[n];
+                        s_szFlags[flagofs++] = ch;
                         break;
 
                     case wxT('*'):
                         {
                             int len = va_arg(argptr, int);
-                            if (in_prec) {
+                            if (in_prec)
+                            {
                                 if (len<0) break;
                                 CHECK_PREC
                                     max_width = len;
-                            } else {
-                                if (len<0) {
+                            }
+                            else
+                            {
+                                if (len<0)
+                                {
                                     adj_left = !adj_left;
                                     s_szFlags[flagofs++] = '-';
                                     len = -len;
@@ -259,13 +295,19 @@ int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
                         {
                             int len = 0;
                             CHECK_PREC
-                                while ((format[n]>=wxT('0')) && (format[n]<=wxT('9'))) {
-                                    s_szFlags[flagofs++] = format[n];
-                                    len = len*10 + (format[n] - wxT('0'));
-                                    n++;
-                                }
-                            if (in_prec) max_width = len;
-                            else min_width = len;
+                            while ( (format[n] >= wxT('0')) &&
+                                    (format[n] <= wxT('9')) )
+                            {
+                                s_szFlags[flagofs++] = format[n];
+                                len = len*10 + (format[n] - wxT('0'));
+                                n++;
+                            }
+
+                            if (in_prec)
+                                max_width = len;
+                            else
+                                min_width = len;
+
                             n--; // the main loop pre-increments n again
                         }
                         break;
@@ -277,35 +319,47 @@ int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
                     case wxT('x'):
                     case wxT('X'):
                         CHECK_PREC
-                        s_szFlags[flagofs++] = format[n];
+                        s_szFlags[flagofs++] = ch;
                         s_szFlags[flagofs] = '\0';
-                        if (ilen == 0 ) {
+                        if (ilen == 0 )
+                        {
                             int val = va_arg(argptr, int);
                             ::sprintf(szScratch, s_szFlags, val);
                         }
-                        else if (ilen == -1) {
-                            short int val = va_arg(argptr, short int);
+                        else if (ilen == -1)
+                        {
+                            // NB: 'short int' value passed through '...'
+                            //      is promoted to 'int', so we have to get
+                            //      an int from stack even if we need a short
+                            short int val = (short int) va_arg(argptr, int);
                             ::sprintf(szScratch, s_szFlags, val);
                         }
-                        else if (ilen == 1) {
+                        else if (ilen == 1)
+                        {
                             long int val = va_arg(argptr, long int);
                             ::sprintf(szScratch, s_szFlags, val);
                         }
-                        else if (ilen == 2) {
+                        else if (ilen == 2)
+                        {
 #if SIZEOF_LONG_LONG
                             long long int val = va_arg(argptr, long long int);
                             ::sprintf(szScratch, s_szFlags, val);
-#else
+#else // !long long
                             long int val = va_arg(argptr, long int);
                             ::sprintf(szScratch, s_szFlags, val);
-#endif
+#endif // long long/!long long
                         }
-                        else if (ilen == 3) {
+                        else if (ilen == 3)
+                        {
                             size_t val = va_arg(argptr, size_t);
                             ::sprintf(szScratch, s_szFlags, val);
                         }
 
-                        APPEND_STR(szScratch);
+                        {
+                            const wxMB2WXbuf tmp =
+                                wxConvLibc.cMB2WX(szScratch);
+                            APPEND_STR(tmp);
+                        }
 
                         done = TRUE;
                         break;
@@ -316,17 +370,24 @@ int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
                     case wxT('g'):
                     case wxT('G'):
                         CHECK_PREC
-                        s_szFlags[flagofs++] = format[n];
+                        s_szFlags[flagofs++] = ch;
                         s_szFlags[flagofs] = '\0';
-                        if (ilen == 2) {
+                        if (ilen == 2)
+                        {
                             long double val = va_arg(argptr, long double);
                             ::sprintf(szScratch, s_szFlags, val);
-                        } else {
+                        }
+                        else
+                        {
                             double val = va_arg(argptr, double);
                             ::sprintf(szScratch, s_szFlags, val);
                         }
 
-                        APPEND_STR(szScratch);
+                        {
+                            const wxMB2WXbuf tmp =
+                                wxConvLibc.cMB2WX(szScratch);
+                            APPEND_STR(tmp);
+                        }
 
                         done = TRUE;
                         break;
@@ -335,11 +396,13 @@ int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
                         {
                             void *val = va_arg(argptr, void *);
                             CHECK_PREC
-                                s_szFlags[flagofs++] = format[n];
+                            s_szFlags[flagofs++] = ch;
                             s_szFlags[flagofs] = '\0';
                             ::sprintf(szScratch, s_szFlags, val);
 
-                            APPEND_STR(szScratch);
+                            const wxMB2WXbuf tmp =
+                                wxConvLibc.cMB2WX(szScratch);
+                            APPEND_STR(tmp);
 
                             done = TRUE;
                         }
@@ -356,48 +419,69 @@ int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
                         break;
 
                     case wxT('s'):
-                        if (ilen == -1) {
-                            // wx extension: we'll let %hs mean non-Unicode strings
+                        if (ilen == -1)
+                        {
+                            // wx extension: we'll let %hs mean non-Unicode
+                            // strings
                             char *val = va_arg(argptr, char *);
 #if wxUSE_UNICODE
-                            // ASCII->Unicode constructor handles max_width right
+                            // ASCII->Unicode constructor handles max_width
+                            // right
                             wxString s(val, wxConvLibc, max_width);
 #else
                             size_t len = wxSTRING_MAXLEN;
-                            if (val) {
-                                for (len = 0; val[len] && (len<max_width); len++);
-                            } else val = wxT("(null)");
+                            if (val)
+                            {
+                                for ( len = 0;
+                                      val[len] && (len < max_width);
+                                      len++ )
+                                    ;
+                            }
+                            else
+                                val = wxT("(null)");
                             wxString s(val, len);
 #endif
                             if (s.Len() < min_width)
                                 s.Pad(min_width - s.Len(), wxT(' '), adj_left);
 
-                            APPEND_WSTR(s);
-                        } else {
+                            APPEND_STR(s);
+                        }
+                        else
+                        {
                             wxChar *val = va_arg(argptr, wxChar *);
                             size_t len = wxSTRING_MAXLEN;
-                            if (val) {
-                                for (len = 0; val[len] && (len<max_width); len++);
-                            } else val = wxT("(null)");
+                            if (val)
+                            {
+                                for ( len = 0;
+                                      val[len] && (len < max_width);
+                                      len++ )
+                                    ;
+                            }
+                            else
+                                val = wxT("(null)");
+
                             wxString s(val, len);
                             if (s.Len() < min_width)
                                 s.Pad(min_width - s.Len(), wxT(' '), adj_left);
 
-                            APPEND_WSTR(s);
+                            APPEND_STR(s);
                         }
                         done = TRUE;
                         break;
 
                     case wxT('n'):
-                        if (ilen == 0) {
+                        if (ilen == 0)
+                        {
                             int *val = va_arg(argptr, int *);
                             *val = lenCur;
                         }
-                        else if (ilen == -1) {
+                        else if (ilen == -1)
+                        {
                             short int *val = va_arg(argptr, short int *);
                             *val = lenCur;
                         }
-                        else if (ilen >= 1) {
+                        else if (ilen >= 1)
+                        {
                             long int *val = va_arg(argptr, long int *);
                             *val = lenCur;
                         }
@@ -405,23 +489,23 @@ int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
                         break;
 
                     default:
-                        if (wxIsalpha(format[n]))
-                            // probably some flag not taken care of here yet
-                            s_szFlags[flagofs++] = format[n];
-                        else {
-                            // bad format
-                            APPEND_CH(_T('%')); // just to pass the glibc tst-printf.c
-                            n--;
-                            done = TRUE;
-                        }
+                        // bad format, leave unchanged
+                        APPEND_CH(_T('%'));
+                        APPEND_CH(ch);
+                        done = TRUE;
                         break;
                 }
-            } while (!done);
+            }
+            while (!done);
         }
         else
         {
-            APPEND_CH(format[n]);
+            APPEND_CH(chCur);
         }
+
+        // terminating NUL?
+        if ( !chCur )
+            break;
     }
 
     return lenCur;
@@ -451,7 +535,7 @@ int WXDLLEXPORT wxSnprintf_(wxChar *buf, size_t len, const wxChar *format, ...)
 // implement the standard IO functions for wide char if libc doesn't have them
 // ----------------------------------------------------------------------------
 
-#ifndef HAVE_FPUTWC
+#ifdef wxNEED_FPUTWC
 
 int wxFputs(const wchar_t *ws, FILE *stream)
 {
@@ -467,7 +551,7 @@ int /* not wint_t */ wxPutc(wchar_t wc, FILE *stream)
     return wxFputs(ws, stream);
 }
 
-#endif // HAVE_FPUTWC
+#endif // wxNEED_FPUTWC
 
 // NB: we only implement va_list functions here, the ones taking ... are
 //     defined below for wxNEED_PRINTF_CONVERSION case anyhow and we reuse
@@ -475,21 +559,21 @@ int /* not wint_t */ wxPutc(wchar_t wc, FILE *stream)
 #ifdef wxNEED_WPRINTF
 
 // TODO: implement the scanf() functions
-int vwscanf(const wchar_t *format, va_list argptr)
+int vwscanf(const wxChar *format, va_list argptr)
 {
     wxFAIL_MSG( _T("TODO") );
 
     return -1;
 }
 
-int vswscanf(const wchar_t *ws, const wchar_t *format, va_list argptr)
+int vswscanf(const wxChar *ws, const wxChar *format, va_list argptr)
 {
     wxFAIL_MSG( _T("TODO") );
 
     return -1;
 }
 
-int vfwscanf(FILE *stream, const wchar_t *format, va_list argptr)
+int vfwscanf(FILE *stream, const wxChar *format, va_list argptr)
 {
     wxFAIL_MSG( _T("TODO") );
 
@@ -498,7 +582,7 @@ int vfwscanf(FILE *stream, const wchar_t *format, va_list argptr)
 
 #define vswprintf wxVsnprintf_
 
-int vfwprintf(FILE *stream, const wchar_t *format, va_list argptr)
+int vfwprintf(FILE *stream, const wxChar *format, va_list argptr)
 {
     wxString s;
     int rc = s.PrintfV(format, argptr);
@@ -506,14 +590,14 @@ int vfwprintf(FILE *stream, const wchar_t *format, va_list argptr)
     if ( rc != -1 )
     {
         // we can't do much better without Unicode support in libc...
-        if ( fprintf(stream, s.mb_str()) == -1 )
+        if ( fprintf(stream, "%s", s.mb_str()) == -1 )
             return -1;
     }
 
     return rc;
 }
 
-int vwprintf(const wchar_t *format, va_list argptr)
+int vwprintf(const wxChar *format, va_list argptr)
 {
     return wxVfprintf(stdout, format, argptr);
 }
@@ -566,7 +650,10 @@ class wxFormatConverter
 public:
     wxFormatConverter(const wxChar *format);
 
-    operator const wxChar *() const { return m_nCopied ? m_fmtOrig : m_fmt.c_str(); }
+    // notice that we only translated the string if m_fmtOrig == NULL (as set
+    // by CopyAllBefore()), otherwise we should simply use the original format
+    operator const wxChar *() const
+        { return m_fmtOrig ? m_fmtOrig : m_fmt.c_str(); }
 
 private:
     // copy another character to the translated format: this function does the
@@ -577,7 +664,7 @@ private:
     {
         if ( !m_fmtOrig )
         {
-            // we're translating, d copy
+            // we're translating, do copy
             m_fmt += ch;
         }
         else
@@ -737,7 +824,7 @@ wxFormatConverter::wxFormatConverter(const wxChar *format)
 
 #if defined(wxNEED_PRINTF_CONVERSION) || defined(wxNEED_WPRINTF)
 
-int wxScanf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_2
+int wxScanf( const wxChar *format, ... )
 {
     va_list argptr;
     va_start(argptr, format);
@@ -749,7 +836,7 @@ int wxScanf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_2
     return ret;
 }
 
-int wxSscanf( const wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
+int wxSscanf( const wxChar *str, const wxChar *format, ... )
 {
     va_list argptr;
     va_start(argptr, format);
@@ -761,11 +848,10 @@ int wxSscanf( const wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
     return ret;
 }
 
-int wxFscanf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
+int wxFscanf( FILE *stream, const wxChar *format, ... )
 {
     va_list argptr;
     va_start(argptr, format);
-
     int ret = vfwscanf(stream, wxFormatConverter(format), argptr);
 
     va_end(argptr);
@@ -773,11 +859,11 @@ int wxFscanf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
     return ret;
 }
 
-int wxPrintf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_2
+int wxPrintf( const wxChar *format, ... )
 {
     va_list argptr;
     va_start(argptr, format);
-    
+
     int ret = vwprintf( wxFormatConverter(format), argptr );
 
     va_end(argptr);
@@ -786,7 +872,7 @@ int wxPrintf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_2
 }
 
 #ifndef wxSnprintf
-int wxSnprintf( wxChar *str, size_t size, const wxChar *format, ... ) ATTRIBUTE_PRINTF_4
+int wxSnprintf( wxChar *str, size_t size, const wxChar *format, ... )
 {
     va_list argptr;
     va_start(argptr, format);
@@ -799,7 +885,7 @@ int wxSnprintf( wxChar *str, size_t size, const wxChar *format, ... ) ATTRIBUTE_
 }
 #endif // wxSnprintf
 
-int wxSprintf( wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
+int wxSprintf( wxChar *str, const wxChar *format, ... )
 {
     va_list argptr;
     va_start(argptr, format);
@@ -812,7 +898,7 @@ int wxSprintf( wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
     return ret;
 }
 
-int wxFprintf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
+int wxFprintf( FILE *stream, const wxChar *format, ... )
 {
     va_list argptr;
     va_start( argptr, format );
@@ -854,6 +940,8 @@ int wxVsprintf( wxChar *str, const wxChar *format, va_list argptr )
 
 #endif // wxNEED_PRINTF_CONVERSION
 
+#if wxUSE_WCHAR_T
+
 // ----------------------------------------------------------------------------
 // ctype.h stuff (currently unused)
 // ----------------------------------------------------------------------------
@@ -881,15 +969,26 @@ WXDLLEXPORT int wxTolower(wxChar ch) { return (wxChar)CharLower((LPTSTR)(ch)); }
 WXDLLEXPORT int wxToupper(wxChar ch) { return (wxChar)CharUpper((LPTSTR)(ch)); }
 #endif
 
-#ifndef wxStrdup
-WXDLLEXPORT wxChar * wxStrdup(const wxChar *psz)
+#ifndef wxStrdupA
+
+WXDLLEXPORT char *wxStrdupA(const char *s)
+{
+    return strcpy((char *)malloc(strlen(s) + 1), s);
+}
+
+#endif // wxStrdupA
+
+#ifndef wxStrdupW
+
+WXDLLEXPORT wchar_t * wxStrdupW(const wchar_t *pwz)
 {
-  size_t size = (wxStrlen(psz) + 1) * sizeof(wxChar);
-  wxChar *ret = (wxChar *) malloc(size);
-  memcpy(ret, psz, size);
+  size_t size = (wxWcslen(pwz) + 1) * sizeof(wchar_t);
+  wchar_t *ret = (wchar_t *) malloc(size);
+  memcpy(ret, pwz, size);
   return ret;
 }
-#endif
+
+#endif // wxStrdupW
 
 #ifndef wxStricmp
 int WXDLLEXPORT wxStricmp(const wxChar *psz1, const wxChar *psz2)
@@ -916,26 +1015,6 @@ int WXDLLEXPORT wxStrnicmp(const wxChar *s1, const wxChar *s2, size_t n)
 }
 #endif
 
-#ifndef wxStrtok
-WXDLLEXPORT wxChar * wxStrtok(wxChar *psz, const wxChar *delim, wxChar **save_ptr)
-{
-  if (!psz) psz = *save_ptr;
-  psz += wxStrspn(psz, delim);
-  if (!*psz) {
-    *save_ptr = (wxChar *)NULL;
-    return (wxChar *)NULL;
-  }
-  wxChar *ret = psz;
-  psz = wxStrpbrk(psz, delim);
-  if (!psz) *save_ptr = (wxChar*)NULL;
-  else {
-    *psz = wxT('\0');
-    *save_ptr = psz + 1;
-  }
-  return ret;
-}
-#endif
-
 #ifndef wxSetlocale
 WXDLLEXPORT wxWCharBuffer wxSetlocale(int category, const wxChar *locale)
 {
@@ -1203,7 +1282,7 @@ int WXDLLEXPORT wxSystem(const wxChar *psz)
     return system(wxConvLocal.cWX2MB(psz));
 }
 
-#endif
+#endif // wxNEED_WX_STDLIB_H
 
 #ifdef wxNEED_WX_TIME_H
 WXDLLEXPORT size_t   wxStrftime(wxChar *s, size_t max, const wxChar *fmt, const struct tm *tm)
@@ -1225,4 +1304,46 @@ WXDLLEXPORT size_t   wxStrftime(wxChar *s, size_t max, const wxChar *fmt, const
         return 0;
   }
 }
-#endif
+#endif // wxNEED_WX_TIME_H
+
+#endif // wxUSE_WCHAR_T
+
+// ----------------------------------------------------------------------------
+// functions which we may need even if !wxUSE_WCHAR_T
+// ----------------------------------------------------------------------------
+
+#ifndef wxStrtok
+
+WXDLLEXPORT wxChar * wxStrtok(wxChar *psz, const wxChar *delim, wxChar **save_ptr)
+{
+    if (!psz)
+    {
+        psz = *save_ptr;
+        if ( !psz )
+            return NULL;
+    }
+
+    psz += wxStrspn(psz, delim);
+    if (!*psz)
+    {
+        *save_ptr = (wxChar *)NULL;
+        return (wxChar *)NULL;
+    }
+
+    wxChar *ret = psz;
+    psz = wxStrpbrk(psz, delim);
+    if (!psz)
+    {
+        *save_ptr = (wxChar*)NULL;
+    }
+    else
+    {
+        *psz = wxT('\0');
+        *save_ptr = psz + 1;
+    }
+
+    return ret;
+}
+
+#endif // wxStrtok
+