don't crash if (char*)c_str() is used twice in a row on the same string and both...

[wxWidgets.git] / include / wx / tokenzr.h

diff --git a/include/wx/tokenzr.h b/include/wx/tokenzr.h
index 34fd0630321faef07dd5392d0562fb5810efcfad..d47d52c324fdfd144dce6805a0dbc61033ed6286 100644 (file)
--- a/include/wx/tokenzr.h
+++ b/include/wx/tokenzr.h
@@ -2,7 +2,7 @@
 // Name:        wx/tokenzr.h
 // Purpose:     String tokenizer - a C++ replacement for strtok(3)
 // Author:      Guilhem Lavaux
-// Modified by: Vadim Zeitlin
+// Modified by: (or rather rewritten by) Vadim Zeitlin
 // Created:     04/22/98
 // RCS-ID:      $Id$
 // Copyright:   (c) Guilhem Lavaux
@@ -12,12 +12,9 @@
 #ifndef _WX_TOKENZRH
 #define _WX_TOKENZRH
 
-#ifdef __GNUG__
-    #pragma interface "tokenzr.h"
-#endif
-
 #include "wx/object.h"
 #include "wx/string.h"
+#include "wx/arrstr.h"
 
 // ----------------------------------------------------------------------------
 // constants
@@ -41,7 +38,7 @@ enum wxStringTokenizerMode
 // wxStringTokenizer: replaces infamous strtok() and has some other features
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxStringTokenizer : public wxObject
+class WXDLLIMPEXP_BASE wxStringTokenizer : public wxObject
 {
 public:
     // ctors and initializers
@@ -61,17 +58,21 @@ public:
     void Reinit(const wxString& str);
 
     // tokens access
-        // count them
+        // return the number of remaining tokens
     size_t CountTokens() const;
         // did we reach the end of the string?
     bool HasMoreTokens() const;
         // get the next token, will return empty string if !HasMoreTokens()
     wxString GetNextToken();
+        // get the delimiter which terminated the token last retrieved by
+        // GetNextToken() or NUL if there had been no tokens yet or the last
+        // one wasn't terminated (but ran to the end of the string)
+    wxChar GetLastDelimiter() const { return m_lastDelim; }
 
     // get current tokenizer state
         // returns the part of the string which remains to tokenize (*not* the
         // initial string)
-    wxString GetString() const { return m_string; }
+    wxString GetString() const { return m_string.substr(m_pos); }
 
         // returns the current position (i.e. one index after the last
         // returned token or 0 if GetNextToken() has never been called) in the
@@ -82,6 +83,9 @@ public:
         // get the current mode - can be different from the one passed to the
         // ctor if it was wxTOKEN_DEFAULT
     wxStringTokenizerMode GetMode() const { return m_mode; }
+        // do we return empty tokens?
+    bool AllowEmpty() const { return m_mode != wxTOKEN_STRTOK; }
+
 
     // backwards compatibility section from now on
     // -------------------------------------------
@@ -107,14 +111,25 @@ public:
 protected:
     bool IsOk() const { return m_mode != wxTOKEN_INVALID; }
 
-    wxString m_string,              // the (rest of) string to tokenize
-             m_delims;              // all delimiters
+    wxString m_string,              // the string we tokenize
+             m_delims;              // all possible delimiters
 
-    size_t   m_pos;                 // the position in the original string
+    size_t   m_pos;                 // the current position in m_string
 
     wxStringTokenizerMode m_mode;   // see wxTOKEN_XXX values
 
-    bool     m_hasMore;             // do we have more (possible empty) tokens?
+    wxChar   m_lastDelim;           // delimiter after last token or '\0'
 };
 
+// ----------------------------------------------------------------------------
+// convenience function which returns all tokens at once
+// ----------------------------------------------------------------------------
+
+// the function takes the same parameters as wxStringTokenizer ctor and returns
+// the array containing all tokens
+wxArrayString WXDLLIMPEXP_BASE
+wxStringTokenize(const wxString& str,
+                 const wxString& delims = wxDEFAULT_DELIMITERS,
+                 wxStringTokenizerMode mode = wxTOKEN_DEFAULT);
+
 #endif // _WX_TOKENZRH