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

diff --git a/include/wx/string.h b/include/wx/string.h
index 9afef648588648b0a926d5de11ce9f34c9c232d5..81c856c9e3ed252dea12945e5afa012512330a23 100644 (file)
--- a/include/wx/string.h
+++ b/include/wx/string.h
@@ -22,6 +22,9 @@
  *         stdarg.h
  *         limits.h
  */
+#ifdef __WXMAC__
+#include <ctype.h>
+#endif
 #include <string.h>
 #include <stdio.h>
 #include <stdarg.h>
@@ -73,6 +76,8 @@
  */
 // ---------------------------------------------------------------------------
 
+WXDLLEXPORT_DATA(extern const char*) wxEmptyString;
+
 /// checks whether the passed in pointer is NULL and if the string is empty
 inline bool WXDLLEXPORT IsEmpty(const char *p) { return !p || !*p; }
 
@@ -85,10 +90,22 @@ inline int WXDLLEXPORT Stricmp(const char *psz1, const char *psz2)
 {
 #if     defined(_MSC_VER)
   return _stricmp(psz1, psz2);
+#elif     defined(__SC__)
+  return _stricmp(psz1, psz2);
 #elif defined(__BORLANDC__)
   return stricmp(psz1, psz2);
+#elif defined(__WATCOMC__)
+  return stricmp(psz1, psz2);
 #elif   defined(__UNIX__) || defined(__GNUWIN32__)
   return strcasecmp(psz1, psz2);
+#elif defined(__MWERKS__) && !defined(_MSC_VER)
+  register char c1, c2;
+  do {
+    c1 = tolower(*psz1++);
+    c2 = tolower(*psz2++);
+  } while ( c1 && (c1 == c2) );
+
+  return c1 - c2;
 #else
   // almost all compilers/libraries provide this function (unfortunately under
   // different names), that's why we don't implement our own which will surely
@@ -106,11 +123,6 @@ inline int WXDLLEXPORT Stricmp(const char *psz1, const char *psz2)
   #error  "Please define string case-insensitive compare for your OS/compiler"
 #endif  // OS/compiler
 }
-wxString WXDLLEXPORT operator+(const wxString& string1,  const wxString& string2);
-wxString WXDLLEXPORT operator+(const wxString& string, char ch);
-wxString WXDLLEXPORT operator+(char ch, const wxString& string);
-wxString WXDLLEXPORT operator+(const wxString& string, const char *psz);
-wxString WXDLLEXPORT operator+(const char *psz, const wxString& string);
 
 // ----------------------------------------------------------------------------
 // global data
@@ -262,14 +274,23 @@ public:
   size_t Len() const { return GetStringData()->nDataLength; }
     /// string contains any characters?
   bool IsEmpty() const { return Len() == 0; }
-    /// reinitialize string (and free memory)
+    /// empty string contents
   void Empty()
   {
     if ( !IsEmpty() )
       Reinit();
 
+    // should be empty
     wxASSERT( GetStringData()->nDataLength == 0 );
-    wxASSERT( GetStringData()->nAllocLength == 0 );
+  }
+    /// empty the string and free memory
+  void Clear()
+  {
+    if ( !GetStringData()->IsEmpty() )
+      Reinit();
+
+    wxASSERT( GetStringData()->nDataLength == 0 );  // should be empty
+    wxASSERT( GetStringData()->nAllocLength == 0 ); // and not own any memory
   }
 
     /// Is an ascii value
@@ -299,9 +320,14 @@ public:
     char& Last()
       { wxASSERT( !IsEmpty() ); CopyBeforeWrite(); return m_pchData[Len()-1]; }
 
+    // on alpha-linux this gives overload problems:
+    // Also on Solaris, so removing for now (JACS)
+#if ! defined(__ALPHA__)
     /// operator version of GetChar
     char  operator[](size_t n) const
       { ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
+#endif
+
     /// operator version of GetChar
     char  operator[](int n) const
       { ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
@@ -377,6 +403,16 @@ public:
     //@}
   //@}
 
+  /** @name stream-like functions */
+  //@{
+        /// insert an int into string
+    wxString& operator<<(int i);
+        /// insert a float into string
+    wxString& operator<<(float f);
+        /// insert a double into string
+    wxString& operator<<(double d);
+  //@}
+  
   /** @name string comparison */
   //@{
     /**
@@ -410,6 +446,11 @@ public:
       nCount (or till the end if nCount = default value)
       */
   wxString Mid(size_t nFirst, size_t nCount = STRING_MAXLEN) const;
+      /// Compatibility with wxWindows 1.xx
+  wxString SubString(size_t from, size_t to) const
+  {
+      return Mid(from, (to - from + 1));
+  }
       /// get first nCount characters
   wxString Left(size_t nCount) const;
       /// get all characters before the first occurence of ch
@@ -524,6 +565,8 @@ public:
     { *this = str + *this; return *this; }
     /// same as Len
   size_t Length() const { return Len(); }
+    /// Count the number of characters
+  int Freq(char ch) const;
     /// same as MakeLower
   void LowerCase() { MakeLower(); }
     /// same as MakeUpper
@@ -560,7 +603,7 @@ public:
     /** @name constructors */
     //@{
       /// take nLen chars starting at nPos
-      wxString(const wxString& str, size_t nPos, size_t nLen = npos)
+      wxString(const wxString& str, size_t nPos, size_t nLen)
       {
         wxASSERT( str.GetStringData()->IsValid() );
         InitWith(str.c_str(), nPos, nLen == npos ? 0 : nLen);
@@ -687,11 +730,13 @@ public:
           /// find first n characters of sz
           size_t find(const char* sz, size_t nStart = 0, size_t n = npos) const;
 #endif
+          // Gives a duplicate symbol (presumably a case-insensitivity problem)
+#if !defined(__BORLANDC__)
           /// find the first occurence of character ch after nStart
           size_t find(char ch, size_t nStart = 0) const;
-
+#endif
           // wxWin compatibility
-          inline bool Contains(const wxString& str) { return Find(str) != -1; }
+          inline bool Contains(const wxString& str) const { return Find(str) != -1; }
 
         //@}
 
@@ -914,6 +959,11 @@ inline bool operator>=(const wxString& s1, const char  * s2) { return s1.Cmp(s2)
 ///
 inline bool operator>=(const char  * s1, const wxString& s2) { return s2.Cmp(s1) <= 0; }
 //@}
+wxString WXDLLEXPORT operator+(const wxString& string1,  const wxString& string2);
+wxString WXDLLEXPORT operator+(const wxString& string, char ch);
+wxString WXDLLEXPORT operator+(char ch, const wxString& string);
+wxString WXDLLEXPORT operator+(const wxString& string, const char *psz);
+wxString WXDLLEXPORT operator+(const char *psz, const wxString& string);
 
 // ---------------------------------------------------------------------------
 /** @name Global functions complementing standard C string library
@@ -937,7 +987,7 @@ inline bool operator>=(const char  * s1, const wxString& s2) { return s2.Cmp(s1)
 #  endif
 #endif
 
-istream& WXDLLEXPORT operator>>(istream& is, wxString& str);
+WXDLLEXPORT istream& operator>>(istream& is, wxString& str);
 
 #endif  //std::string compatibility