X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/77ffb5937e89927b621128789401db8921fe580f..9ae8168e5b1072e3a401abca3b0f40bc6afcc6ae:/include/wx/string.h

diff --git a/include/wx/string.h b/include/wx/string.h
index a9a9f45d8e..bdd38c93a1 100644
--- a/include/wx/string.h
+++ b/include/wx/string.h
@@ -6,7 +6,7 @@
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence:     wxWidgets licence
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 /*
@@ -51,10 +51,16 @@
     #include <strings.h>    // for strcasecmp()
 #endif // HAVE_STRCASECMP_IN_STRINGS_H
 
+#ifdef __PALMOS__
+    #include <StringMgr.h>
+#endif
+
 #include "wx/wxchar.h"      // for wxChar
 #include "wx/buffer.h"      // for wxCharBuffer
 #include "wx/strconv.h"     // for wxConvertXXX() macros and wxMBConv classes
 
+class WXDLLIMPEXP_BASE wxString;
+
 // ---------------------------------------------------------------------------
 // macros
 // ---------------------------------------------------------------------------
@@ -80,7 +86,7 @@ extern const unsigned int wxSTRING_MAXLEN;
 
 #else
 // maximum possible length for a string means "take all string" everywhere
-//  (as sizeof(StringData) is unknown here, we substract 100)
+//  (as sizeof(StringData) is unknown here, we subtract 100)
 const unsigned int wxSTRING_MAXLEN = UINT_MAX - 100;
 
 #endif
@@ -164,10 +170,6 @@ inline int Stricmp(const char *psz1, const char *psz2)
 #endif  // OS/compiler
 }
 
-// return an empty wxString
-class WXDLLIMPEXP_BASE wxString; // not yet defined
-inline const wxString& wxGetEmptyString() { return *(wxString *)&wxEmptyString; }
-
 #if wxUSE_STL
 
 #include "wx/beforestd.h"
@@ -429,9 +431,9 @@ public:
   const_iterator end() const { return m_pchData + length(); }
 
   // first valid index position
-  iterator begin() { CopyBeforeWrite(); return m_pchData; }
+  iterator begin();
   // position one after the last valid one
-  iterator end() { CopyBeforeWrite(); return m_pchData + length(); }
+  iterator end();
 
     // insert another string
   wxStringBase& insert(size_t nPos, const wxStringBase& str)
@@ -574,17 +576,15 @@ public:
     // All compare functions return -1, 0 or 1 if the [sub]string is less,
     // equal or greater than the compare() argument.
 
-    // just like strcmp()
-  int compare(const wxStringBase& str) const
-    { return wxStrcmp(c_str(), str.c_str()); }
+    // comparison with another string
+  int compare(const wxStringBase& str) const;
     // comparison with a substring
   int compare(size_t nStart, size_t nLen, const wxStringBase& str) const;
     // comparison of 2 substrings
   int compare(size_t nStart, size_t nLen,
               const wxStringBase& str, size_t nStart2, size_t nLen2) const;
-    // just like strcmp()
-  int compare(const wxChar* sz) const
-    { return wxStrcmp(c_str(), sz); }
+    // comparison with a c string
+  int compare(const wxChar* sz) const;
     // substring comparison with first nCount characters of sz
   int compare(size_t nStart, size_t nLen,
               const wxChar* sz, size_t nCount = npos) const;
@@ -604,27 +604,9 @@ public:
 
 #endif // !wxUSE_STL
 
-// ---------------------------------------------------------------------------
-// This is (yet another one) String class for C++ programmers. It doesn't use
-// any of "advanced" C++ features (i.e. templates, exceptions, namespaces...)
-// thus you should be able to compile it with practicaly any C++ compiler.
-// This class uses copy-on-write technique, i.e. identical strings share the
-// same memory as long as neither of them is changed.
-//
-// This class aims to be as compatible as possible with the new standard
-// std::string class, but adds some additional functions and should be at
-// least as efficient than the standard implementation.
-//
-// Performance note: it's more efficient to write functions which take "const
-// String&" arguments than "const char *" if you assign the argument to
-// another string.
-//
-// It was compiled and tested under Win32, Linux (libc 5 & 6), Solaris 5.5.
-//
-// To do:
-//  - ressource support (string tables in ressources)
-//  - more wide character (UNICODE) support
-//  - regular expressions support
+// ----------------------------------------------------------------------------
+// wxString: string class trying to be compatible with std::string, MFC
+//           CString and wxWindows 1.x wxString all at once
 // ---------------------------------------------------------------------------
 
 class WXDLLIMPEXP_BASE wxString : public wxStringBase
@@ -675,8 +657,6 @@ public:
 
 #if wxUSE_UNICODE
     // from multibyte string
-    // (NB: nLength is right now number of Unicode characters, not
-    //  characters in psz! So try not to use it yet!)
   wxString(const char *psz, wxMBConv& conv, size_t nLength = npos);
     // from wxWCharBuffer (i.e. return from wxGetString)
   wxString(const wxWCharBuffer& psz) : wxStringBase(psz.data()) { }
@@ -692,7 +672,7 @@ public:
 
     // from wxCharBuffer
   wxString(const wxCharBuffer& psz)
-      : wxStringBase(psz, npos) { }
+      : wxStringBase(psz) { }
 #endif // Unicode/ANSI
 
   // generic attributes & operations
@@ -700,7 +680,7 @@ public:
   size_t Len() const { return length(); }
     // string contains any characters?
   bool IsEmpty() const { return empty(); }
-    // empty string is "FALSE", so !str will return TRUE
+    // empty string is "false", so !str will return true
   bool operator!() const { return IsEmpty(); }
     // truncate the string to given length
   wxString& Truncate(size_t uiLen);
@@ -825,8 +805,7 @@ public:
     // type differs because a function may either return pointer to the buffer
     // directly or have to use intermediate buffer for translation.
 #if wxUSE_UNICODE
-    const wxCharBuffer mb_str(wxMBConv& conv = wxConvLibc) const
-        { return conv.cWC2MB(c_str()); }
+    const wxCharBuffer mb_str(wxMBConv& conv = wxConvLibc) const;
 
     const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
 
@@ -849,11 +828,13 @@ public:
     const wxWX2MBbuf mbc_str() const { return mb_str(); }
 
 #if wxUSE_WCHAR_T
-    const wxWCharBuffer wc_str(wxMBConv& conv) const
-        { return conv.cMB2WC(c_str()); }
+    const wxWCharBuffer wc_str(wxMBConv& conv) const;
 #endif // wxUSE_WCHAR_T
-
+#ifdef __WXOSX__
+    const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLocal ) ); }
+#else
     const wxChar* fn_str() const { return c_str(); }
+#endif
 #endif // Unicode/ANSI
 
   // overloaded assignment
@@ -975,15 +956,17 @@ public:
 
   // string comparison
     // case-sensitive comparison (returns a value < 0, = 0 or > 0)
-  int Cmp(const wxChar *psz) const { return wxStrcmp(c_str(), psz); }
+  int Cmp(const wxChar *psz) const;
+  int Cmp(const wxString& s) const;
     // same as Cmp() but not case-sensitive
-  int CmpNoCase(const wxChar *psz) const { return wxStricmp(c_str(), psz); }
+  int CmpNoCase(const wxChar *psz) const;
+  int CmpNoCase(const wxString& s) const;
     // test for the string equality, either considering case or not
     // (if compareWithCase then the case matters)
-  bool IsSameAs(const wxChar *psz, bool compareWithCase = TRUE) const
+  bool IsSameAs(const wxChar *psz, bool compareWithCase = true) const
     { return (compareWithCase ? Cmp(psz) : CmpNoCase(psz)) == 0; }
-    // comparison with a signle character: returns TRUE if equal
-  bool IsSameAs(wxChar c, bool compareWithCase = TRUE) const
+    // comparison with a signle character: returns true if equal
+  bool IsSameAs(wxChar c, bool compareWithCase = true) const
     {
       return (length() == 1) && (compareWithCase ? GetChar(0u) == c
                               : wxToupper(GetChar(0u)) == wxToupper(c));
@@ -1000,7 +983,7 @@ public:
 
       // check that the string starts with prefix and return the rest of the
       // string in the provided pointer if it is not NULL, otherwise return
-      // FALSE
+      // false
   bool StartsWith(const wxChar *prefix, wxString *rest = NULL) const;
 
       // get first nCount characters
@@ -1037,25 +1020,25 @@ public:
 
   // trimming/padding whitespace (either side) and truncating
       // remove spaces from left or from right (default) side
-  wxString& Trim(bool bFromRight = TRUE);
+  wxString& Trim(bool bFromRight = true);
       // add nCount copies chPad in the beginning or at the end (default)
-  wxString& Pad(size_t nCount, wxChar chPad = wxT(' '), bool bFromRight = TRUE);
+  wxString& Pad(size_t nCount, wxChar chPad = wxT(' '), bool bFromRight = true);
 
   // searching and replacing
       // searching (return starting index, or -1 if not found)
-  int Find(wxChar ch, bool bFromEnd = FALSE) const;   // like strchr/strrchr
+  int Find(wxChar ch, bool bFromEnd = false) const;   // like strchr/strrchr
       // searching (return starting index, or -1 if not found)
   int Find(const wxChar *pszSub) const;               // like strstr
       // replace first (or all of bReplaceAll) occurences of substring with
       // another string, returns the number of replacements made
   size_t Replace(const wxChar *szOld,
                  const wxChar *szNew,
-                 bool bReplaceAll = TRUE);
+                 bool bReplaceAll = true);
 
     // check if the string contents matches a mask containing '*' and '?'
   bool Matches(const wxChar *szMask) const;
 
-    // conversion to numbers: all functions return TRUE only if the whole
+    // conversion to numbers: all functions return true only if the whole
     // string is a number and put the value of this number into the pointer
     // provided, the base is the numeric base in which the conversion should be
     // done and must be comprised between 2 and 36 or be 0 in which case the
@@ -1138,8 +1121,8 @@ public:
   int First( const wxChar ch ) const { return Find(ch); }
   int First( const wxChar* psz ) const { return Find(psz); }
   int First( const wxString &str ) const { return Find(str); }
-  int Last( const wxChar ch ) const { return Find(ch, TRUE); }
-  bool Contains(const wxString& str) const { return Find(str) != -1; }
+  int Last( const wxChar ch ) const { return Find(ch, true); }
+  bool Contains(const wxString& str) const { return Find(str) != wxNOT_FOUND; }
 
     // use IsEmpty()
   bool IsNull() const { return IsEmpty(); }
@@ -1289,6 +1272,17 @@ public:
     #include "wx/arrstr.h"
 #endif
 
+#if wxUSE_STL
+    // return an empty wxString (not very useful with wxUSE_STL == 1)
+    inline const wxString wxGetEmptyString() { return wxString(); }
+#else // !wxUSE_STL
+    // return an empty wxString (more efficient than wxString() here)
+    inline const wxString& wxGetEmptyString()
+    {
+        return *(wxString *)&wxEmptyString;
+    }
+#endif // wxUSE_STL/!wxUSE_STL
+
 // ----------------------------------------------------------------------------
 // wxStringBuffer: a tiny class allowing to get a writable pointer into string
 // ----------------------------------------------------------------------------
@@ -1371,7 +1365,10 @@ class WXDLLIMPEXP_BASE wxStringBufferLength
 public:
     wxStringBufferLength(wxString& str, size_t lenWanted = 1024)
         : m_str(str), m_buf(NULL), m_len(0), m_lenSet(false)
-        { m_buf = m_str.GetWriteBuf(lenWanted); }
+    { 
+        m_buf = m_str.GetWriteBuf(lenWanted); 
+        wxASSERT(m_buf != NULL);
+    }
 
     ~wxStringBufferLength()
     {
@@ -1397,46 +1394,10 @@ private:
 // wxString comparison functions: operator versions are always case sensitive
 // ---------------------------------------------------------------------------
 
-#if wxUSE_STL
-
-inline bool operator==(const wxString& s1, const wxString& s2)
-    { return s1.compare(s2) == 0; }
-inline bool operator==(const wxString& s1, const wxChar  * s2)
-    { return s1.compare(s2) == 0; }
-inline bool operator==(const wxChar  * s1, const wxString& s2)
-    { return s2.compare(s1) == 0; }
-inline bool operator!=(const wxString& s1, const wxString& s2)
-    { return s1.compare(s2) != 0; }
-inline bool operator!=(const wxString& s1, const wxChar  * s2)
-    { return s1.compare(s2) != 0; }
-inline bool operator!=(const wxChar  * s1, const wxString& s2)
-    { return s2.compare(s1) != 0; }
-inline bool operator< (const wxString& s1, const wxString& s2)
-    { return s1.compare(s2) <  0; }
-inline bool operator< (const wxString& s1, const wxChar  * s2)
-    { return s1.compare(s2) <  0; }
-inline bool operator< (const wxChar  * s1, const wxString& s2)
-    { return s2.compare(s1) >  0; }
-inline bool operator> (const wxString& s1, const wxString& s2)
-    { return s1.compare(s2) >  0; }
-inline bool operator> (const wxString& s1, const wxChar  * s2)
-    { return s1.compare(s2) >  0; }
-inline bool operator> (const wxChar  * s1, const wxString& s2)
-    { return s2.compare(s1) <  0; }
-inline bool operator<=(const wxString& s1, const wxString& s2)
-    { return s1.compare(s2) <= 0; }
-inline bool operator<=(const wxString& s1, const wxChar  * s2)
-    { return s1.compare(s2) <= 0; }
-inline bool operator<=(const wxChar  * s1, const wxString& s2)
-    { return s2.compare(s1) >= 0; }
-inline bool operator>=(const wxString& s1, const wxString& s2)
-    { return s1.compare(s2) >= 0; }
-inline bool operator>=(const wxString& s1, const wxChar  * s2)
-    { return s1.compare(s2) >= 0; }
-inline bool operator>=(const wxChar  * s1, const wxString& s2)
-    { return s2.compare(s1) <= 0; }
-
-#else // if !wxUSE_STL
+// note that when wxUSE_STL == 1 the comparison operators taking std::string
+// are used and defining them also for wxString would only result in
+// compilation ambiguities when comparing std::string and wxString
+#if !wxUSE_STL
 
 inline bool operator==(const wxString& s1, const wxString& s2)
     { return (s1.Len() == s2.Len()) && (s1.Cmp(s2) == 0); }
@@ -1475,14 +1436,6 @@ inline bool operator>=(const wxString& s1, const wxChar  * s2)
 inline bool operator>=(const wxChar  * s1, const wxString& s2)
     { return s2.Cmp(s1) <= 0; }
 
-#endif // !wxUSE_STL
-
-// comparison with char
-inline bool operator==(wxChar c, const wxString& s) { return s.IsSameAs(c); }
-inline bool operator==(const wxString& s, wxChar c) { return s.IsSameAs(c); }
-inline bool operator!=(wxChar c, const wxString& s) { return !s.IsSameAs(c); }
-inline bool operator!=(const wxString& s, wxChar c) { return !s.IsSameAs(c); }
-
 #if wxUSE_UNICODE
 inline bool operator==(const wxString& s1, const wxWCharBuffer& s2)
     { return (s1.Cmp((const wchar_t *)s2) == 0); }
@@ -1503,16 +1456,12 @@ inline bool operator!=(const wxCharBuffer& s1, const wxString& s2)
     { return (s2.Cmp((const char *)s1) != 0); }
 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 
-#if !wxUSE_STL
-
 wxString WXDLLIMPEXP_BASE operator+(const wxString& string1,  const wxString& string2);
 wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch);
 wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string);
 wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wxChar *psz);
 wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, const wxString& string);
 
-#endif // !wxUSE_STL
-
 #if wxUSE_UNICODE
 inline wxString operator+(const wxString& string, const wxWCharBuffer& buf)
     { return string + (const wchar_t *)buf; }
@@ -1525,6 +1474,15 @@ inline wxString operator+(const wxCharBuffer& buf, const wxString& string)
     { return (const char *)buf + string; }
 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 
+#endif // !wxUSE_STL
+
+// comparison with char (those are not defined by std::[w]string and so should
+// be always available)
+inline bool operator==(wxChar c, const wxString& s) { return s.IsSameAs(c); }
+inline bool operator==(const wxString& s, wxChar c) { return s.IsSameAs(c); }
+inline bool operator!=(wxChar c, const wxString& s) { return !s.IsSameAs(c); }
+inline bool operator!=(const wxString& s, wxChar c) { return !s.IsSameAs(c); }
+
 // ---------------------------------------------------------------------------
 // Implementation only from here until the end of file
 // ---------------------------------------------------------------------------