///////////////////////////////////////////////////////////////////////////////
-// Name: string.h
+// Name: wx/string.h
// Purpose: wxString and wxArrayString classes
// Author: Vadim Zeitlin
// Modified by:
// Created: 29/01/98
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence: wxWindows license
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
+/*
+ Efficient string class [more or less] compatible with MFC CString,
+ wxWidgets version 1 wxString and std::string and some handy functions
+ missing from string.h.
+*/
+
#ifndef _WX_WXSTRINGH__
#define _WX_WXSTRINGH__
-#ifdef __GNUG__
-#pragma interface "string.h"
-#endif
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "wx/defs.h" // everybody should include this
-#ifdef __WXMAC__
+#if defined(__WXMAC__) || defined(__VISAGECPP__)
#include <ctype.h>
#endif
-#include <string.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <limits.h>
-#include <stdlib.h>
+#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
+ // problem in VACPP V4 with including stdlib.h multiple times
+ // strconv includes it anyway
+# include <stdio.h>
+# include <string.h>
+# include <stdarg.h>
+# include <limits.h>
+#else
+# include <string.h>
+# include <stdio.h>
+# include <stdarg.h>
+# include <limits.h>
+# include <stdlib.h>
+#endif
-#ifdef HAVE_STRINGS_H
+#ifdef HAVE_STRCASECMP_IN_STRINGS_H
#include <strings.h> // for strcasecmp()
-#endif // AIX
+#endif // HAVE_STRCASECMP_IN_STRINGS_H
-#ifndef WX_PRECOMP
- #include "wx/defs.h"
+#ifdef __WXPALMOS__
+ #include <StringMgr.h>
+#endif
- #ifdef WXSTRING_IS_WXOBJECT
- #include "wx/object.h"
- #endif
-#endif // !PCH
+#include "wx/wxchar.h" // for wxChar
+#include "wx/buffer.h" // for wxCharBuffer
+#include "wx/strconv.h" // for wxConvertXXX() macros and wxMBConv classes
-#include "wx/debug.h"
-#include "wx/wxchar.h"
-#include "wx/buffer.h"
-
-/*
- Efficient string class [more or less] compatible with MFC CString,
- wxWindows version 1 wxString and std::string and some handy functions
- missing from string.h.
-*/
+class WXDLLIMPEXP_BASE wxString;
// ---------------------------------------------------------------------------
// macros
// ---------------------------------------------------------------------------
-// compile the std::string compatibility functions if defined
-#define wxSTD_STRING_COMPATIBILITY
+// casts [unfortunately!] needed to call some broken functions which require
+// "char *" instead of "const char *"
+#define WXSTRINGCAST (wxChar *)(const wxChar *)
+#define wxCSTRINGCAST (wxChar *)(const wxChar *)
+#define wxMBSTRINGCAST (char *)(const char *)
+#define wxWCSTRINGCAST (wchar_t *)(const wchar_t *)
-// define to derive wxString from wxObject
-#ifdef WXSTRING_IS_WXOBJECT
-#undef WXSTRING_IS_WXOBJECT
-#endif
+// implementation only
+#define wxASSERT_VALID_INDEX(i) \
+ wxASSERT_MSG( (size_t)(i) <= length(), _T("invalid index in wxString") )
+
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
// maximum possible length for a string means "take all string" everywhere
-// (as sizeof(StringData) is unknown here we substract 100)
-const unsigned int wxSTRING_MAXLEN = UINT_MAX - 100;
+#define wxSTRING_MAXLEN wxStringBase::npos
-// 'naughty' cast
-#define WXSTRINGCAST (wxChar *)(const wxChar *)
-#define WXCSTRINGCAST (wxChar *)(const wxChar *)
-#define MBSTRINGCAST (char *)(const char *)
-#define WCSTRINGCAST (wchar_t *)(const wchar_t *)
+// ----------------------------------------------------------------------------
+// global data
+// ----------------------------------------------------------------------------
-// implementation only
-#define ASSERT_VALID_INDEX(i) wxASSERT( (unsigned)(i) <= Len() )
+// global pointer to empty string
+extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxEmptyString;
// ---------------------------------------------------------------------------
-// Global functions complementing standard C string library replacements for
+// global functions complementing standard C string library replacements for
// strlen() and portable strcasecmp()
//---------------------------------------------------------------------------
-// USE wx* FUNCTIONS IN wx/wxchar.h INSTEAD - THIS IS ONLY FOR BINARY COMPATIBILITY
+
+// Use wxXXX() functions from wxchar.h instead! These functions are for
+// backwards compatibility only.
// checks whether the passed in pointer is NULL and if the string is empty
-inline bool WXDLLEXPORT IsEmpty(const char *p) { return (!p || !*p); }
+inline bool IsEmpty(const char *p) { return (!p || !*p); }
// safe version of strlen() (returns 0 if passed NULL pointer)
-inline size_t WXDLLEXPORT Strlen(const char *psz)
+inline size_t Strlen(const char *psz)
{ return psz ? strlen(psz) : 0; }
// portable strcasecmp/_stricmp
-inline int WXDLLEXPORT Stricmp(const char *psz1, const char *psz2)
+inline int Stricmp(const char *psz1, const char *psz2)
{
-#if defined(__VISUALC__) || ( defined(__MWERKS__) && defined(__INTEL__) )
+#if defined(__VISUALC__) && defined(__WXWINCE__)
+ register char c1, c2;
+ do {
+ c1 = tolower(*psz1++);
+ c2 = tolower(*psz2++);
+ } while ( c1 && (c1 == c2) );
+
+ return c1 - c2;
+#elif defined(__VISUALC__) || ( defined(__MWERKS__) && defined(__INTEL__) )
return _stricmp(psz1, psz2);
-#elif defined(__SC__)
+#elif defined(__SC__)
return _stricmp(psz1, psz2);
-#elif defined(__SALFORDC__)
+#elif defined(__SALFORDC__)
return stricmp(psz1, psz2);
#elif defined(__BORLANDC__)
return stricmp(psz1, psz2);
#elif defined(__WATCOMC__)
return stricmp(psz1, psz2);
-#elif defined(__UNIX__) || defined(__GNUWIN32__)
+#elif defined(__DJGPP__)
+ return stricmp(psz1, psz2);
+#elif defined(__EMX__)
+ return stricmp(psz1, psz2);
+#elif defined(__WXPM__)
+ return stricmp(psz1, psz2);
+#elif defined(__WXPALMOS__) || \
+ defined(HAVE_STRCASECMP_IN_STRING_H) || \
+ defined(HAVE_STRCASECMP_IN_STRINGS_H) || \
+ defined(__GNUWIN32__)
return strcasecmp(psz1, psz2);
#elif defined(__MWERKS__) && !defined(__INTEL__)
register char c1, c2;
}
// ----------------------------------------------------------------------------
-// global data
+// deal with STL/non-STL/non-STL-but-wxUSE_STD_STRING
// ----------------------------------------------------------------------------
-WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString;
+// in both cases we need to define wxStdString
+#if wxUSE_STL || wxUSE_STD_STRING
-// global pointer to empty string
-WXDLLEXPORT_DATA(extern const wxChar*) g_szNul;
+#include "wx/beforestd.h"
+#include <string>
+#include "wx/afterstd.h"
+
+#if wxUSE_UNICODE
+ #ifdef HAVE_STD_WSTRING
+ typedef std::wstring wxStdString;
+ #else
+ typedef std::basic_string<wxChar> wxStdString;
+ #endif
+#else
+ typedef std::string wxStdString;
+#endif
+
+#endif // need <string>
+
+#if wxUSE_STL
-// return an empty wxString
-class WXDLLEXPORT wxString; // not yet defined
-inline const wxString& wxGetEmptyString() { return *(wxString *)&g_szNul; }
+ // we don't need an extra ctor from std::string when copy ctor already does
+ // the work
+ #undef wxUSE_STD_STRING
+ #define wxUSE_STD_STRING 0
+
+ #if (defined(__GNUG__) && (__GNUG__ < 3)) || \
+ (defined(_MSC_VER) && (_MSC_VER <= 1200))
+ #define wxSTRING_BASE_HASNT_CLEAR
+ #endif
+
+ typedef wxStdString wxStringBase;
+#else // if !wxUSE_STL
+
+#if !defined(HAVE_STD_STRING_COMPARE) && \
+ (!defined(__WX_SETUP_H__) || wxUSE_STL == 0)
+ #define HAVE_STD_STRING_COMPARE
+#endif
// ---------------------------------------------------------------------------
// string data prepended with some housekeeping info (used by wxString class),
// is never used directly (but had to be put here to allow inlining)
// ---------------------------------------------------------------------------
-struct WXDLLEXPORT wxStringData
+
+struct WXDLLIMPEXP_BASE wxStringData
{
int nRefs; // reference count
size_t nDataLength, // actual string length
// lock/unlock
void Lock() { if ( !IsEmpty() ) nRefs++; }
+
+ // VC++ will refuse to inline Unlock but profiling shows that it is wrong
+#if defined(__VISUALC__) && (__VISUALC__ >= 1200)
+ __forceinline
+#endif
+ // VC++ free must take place in same DLL as allocation when using non dll
+ // run-time library (e.g. Multithreaded instead of Multithreaded DLL)
+#if defined(__VISUALC__) && defined(_MT) && !defined(_DLL)
+ void Unlock() { if ( !IsEmpty() && --nRefs == 0) Free(); }
+ // we must not inline deallocation since allocation is not inlined
+ void Free();
+#else
void Unlock() { if ( !IsEmpty() && --nRefs == 0) free(this); }
+#endif
// if we had taken control over string memory (GetWriteBuf), it's
// intentionally put in invalid state
bool IsValid() const { return (nRefs != 0); }
};
-// ---------------------------------------------------------------------------
-// types of multibyte<->Unicode conversions
-// ---------------------------------------------------------------------------
-#if wxUSE_WCHAR_T
-class WXDLLEXPORT wxMBConv
+class WXDLLIMPEXP_BASE wxStringBase
{
- public:
- virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
- virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
- const wxWCharBuffer cMB2WC(const char *psz) const
- {
- if (psz) {
- size_t nLen = MB2WC((wchar_t *) NULL, psz, 0);
- wxWCharBuffer buf(nLen);
- MB2WC(WCSTRINGCAST buf, psz, nLen);
- return buf;
- } else return wxWCharBuffer((wchar_t *) NULL);
- }
- const wxCharBuffer cWC2MB(const wchar_t *psz) const
- {
- if (psz) {
- size_t nLen = WC2MB((char *) NULL, psz, 0);
- wxCharBuffer buf(nLen);
- WC2MB(MBSTRINGCAST buf, psz, nLen);
- return buf;
- } else return wxCharBuffer((char *) NULL);
- }
-#if wxUSE_UNICODE
- const wxWCharBuffer cMB2WX(const char *psz) const { return cMB2WC(psz); }
- const wxCharBuffer cWX2MB(const wchar_t *psz) const { return cWC2MB(psz); }
- const wchar_t* cWC2WX(const wchar_t *psz) const { return psz; }
- const wchar_t* cMB2WC(const wchar_t *psz) const { return psz; }
-#else
- const char* cMB2WX(const char *psz) const { return psz; }
- const char* cWX2MB(const char *psz) const { return psz; }
- const wxCharBuffer cWC2WX(const wchar_t *psz) const { return cWC2MB(psz); }
- const wxWCharBuffer cWX2WC(const char *psz) const { return cMB2WC(psz); }
+#if !wxUSE_STL
+friend class WXDLLIMPEXP_BASE wxArrayString;
#endif
-};
-WXDLLEXPORT_DATA(extern wxMBConv) wxConvLibc;
-#define wxConv_libc wxConvLibc
-
-#define wxANOTHER_MBCONV(type) \
-class type : public wxMBConv { \
- public: \
- virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const; \
- virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const; \
-}
-
-WXDLLEXPORT_DATA(extern wxANOTHER_MBCONV(wxMBConvFile)) wxConvFile;
-#define wxConv_file wxConvFile
-WXDLLEXPORT_DATA(extern wxANOTHER_MBCONV(wxMBConvUTF7)) wxConvUTF7;
-WXDLLEXPORT_DATA(extern wxANOTHER_MBCONV(wxMBConvUTF8)) wxConvUTF8;
-#define wxConv_UTF8 wxConvUTF8
-#if defined(__WXGTK__) && (GTK_MINOR_VERSION > 0)
- WXDLLEXPORT_DATA(extern wxANOTHER_MBCONV(wxMBConvGdk)) wxConvGdk;
- #define wxConv_gdk wxConvGdk
-#endif // GTK > 1.0
-
-class wxCharacterSet;
-class WXDLLEXPORT wxCSConv : public wxMBConv
-{
- private:
- wxChar *m_name;
- wxCharacterSet *m_cset;
- bool m_deferred;
- void SetName(const wxChar *charset);
- public:
- wxCSConv(const wxChar *charset);
- virtual ~wxCSConv();
- void LoadNow();
- virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
- virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
-};
-
-WXDLLEXPORT_DATA(extern wxCSConv) wxConvLocal;
-#define wxConv_local wxConvLocal
-
-WXDLLEXPORT_DATA(extern wxMBConv *) wxConvCurrent;
-#define wxConv_current wxConvCurrent
-
-// filenames are multibyte on Unix and probably widechar on Windows?
-#if defined(__UNIX__) || defined(__BORLANDC__)
-#define wxMBFILES 1
-#else
-#define wxMBFILES 0
-#endif
-
-#if wxMBFILES
-#define wxFNCONV(name) wxConvFile.cWX2MB(name)
-#define FNSTRINGCAST MBSTRINGCAST
-#else
-#define wxFNCONV(name) name
-#define FNSTRINGCAST WXSTRINGCAST
-#endif
-#else//!wxUSE_WCHAR_T
-class WXDLLEXPORT wxMBConv {};
-WXDLLEXPORT_DATA(extern wxMBConv) wxConvLibc;
-#endif//wxUSE_WCHAR_T
-
-// ---------------------------------------------------------------------------
-// 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
-// ---------------------------------------------------------------------------
-
-#ifdef WXSTRING_IS_WXOBJECT
-class WXDLLEXPORT wxString : public wxObject
-{
- DECLARE_DYNAMIC_CLASS(wxString)
-#else //WXSTRING_IS_WXOBJECT
-class WXDLLEXPORT wxString
-{
-#endif //WXSTRING_IS_WXOBJECT
-
-friend class WXDLLEXPORT wxArrayString;
-
- // NB: special care was taken in arranging the member functions in such order
- // that all inline functions can be effectively inlined, verify that all
- // performace critical functions are still inlined if you change order!
-private:
+public :
+ // an 'invalid' value for string index, moved to this place due to a CW bug
+ static const size_t npos;
+protected:
// points to data preceded by wxStringData structure with ref count info
wxChar *m_pchData;
// string (re)initialization functions
// initializes the string to the empty value (must be called only from
// ctors, use Reinit() otherwise)
- void Init() { m_pchData = (wxChar *)g_szNul; }
- // initializaes the string with (a part of) C-string
- void InitWith(const wxChar *psz, size_t nPos = 0, size_t nLen = wxSTRING_MAXLEN);
+ void Init() { m_pchData = (wxChar *)wxEmptyString; }
+ // initializes the string with (a part of) C-string
+ void InitWith(const wxChar *psz, size_t nPos = 0, size_t nLen = npos);
// as Init, but also frees old data
void Reinit() { GetStringData()->Unlock(); Init(); }
// memory allocation
- // allocates memory for string of lenght nLen
- void AllocBuffer(size_t nLen);
+ // allocates memory for string of length nLen
+ bool AllocBuffer(size_t nLen);
// copies data to another string
- void AllocCopy(wxString&, int, int) const;
+ bool AllocCopy(wxString&, int, int) const;
// effectively copies data to string
- void AssignCopy(size_t, const wxChar *);
+ bool AssignCopy(size_t, const wxChar *);
// append a (sub)string
- void ConcatSelf(int nLen, const wxChar *src);
+ bool ConcatSelf(size_t nLen, const wxChar *src, size_t nMaxLen);
+ bool ConcatSelf(size_t nLen, const wxChar *src)
+ { return ConcatSelf(nLen, src, nLen); }
// functions called before writing to the string: they copy it if there
// are other references to our data (should be the only owner when writing)
- void CopyBeforeWrite();
- void AllocBeforeWrite(size_t);
-
- // this method is not implemented - there is _no_ conversion from int to
- // string, you're doing something wrong if the compiler wants to call it!
- //
- // try `s << i' or `s.Printf("%d", i)' instead
- wxString(int);
- wxString(long);
+ bool CopyBeforeWrite();
+ bool AllocBeforeWrite(size_t);
+ // compatibility with wxString
+ bool Alloc(size_t nLen);
public:
+ // standard types
+ typedef wxChar value_type;
+ typedef wxChar char_type;
+ typedef size_t size_type;
+ typedef value_type& reference;
+ typedef const value_type& const_reference;
+ typedef value_type* pointer;
+ typedef const value_type* const_pointer;
+ typedef value_type *iterator;
+ typedef const value_type *const_iterator;
+
// constructors and destructor
// ctor for an empty string
- wxString() { Init(); }
+ wxStringBase() { Init(); }
// copy ctor
- wxString(const wxString& stringSrc)
+ wxStringBase(const wxStringBase& stringSrc)
{
- wxASSERT( stringSrc.GetStringData()->IsValid() );
+ wxASSERT_MSG( stringSrc.GetStringData()->IsValid(),
+ _T("did you forget to call UngetWriteBuf()?") );
- if ( stringSrc.IsEmpty() ) {
+ if ( stringSrc.empty() ) {
// nothing to do for an empty string
Init();
}
}
}
// string containing nRepeat copies of ch
- wxString(wxChar ch, size_t nRepeat = 1);
+ wxStringBase(size_type nRepeat, wxChar ch);
// ctor takes first nLength characters from C string
- // (default value of wxSTRING_MAXLEN means take all the string)
- wxString(const wxChar *psz, size_t nLength = wxSTRING_MAXLEN)
- { InitWith(psz, 0, nLength); }
+ // (default value of npos means take all the string)
+ wxStringBase(const wxChar *psz)
+ { InitWith(psz, 0, npos); }
+ wxStringBase(const wxChar *psz, size_t nLength)
+ { InitWith(psz, 0, nLength); }
+ wxStringBase(const wxChar *psz,
+ const wxMBConv& WXUNUSED(conv),
+ size_t nLength = npos)
+ { InitWith(psz, 0, nLength); }
+ // take nLen chars starting at nPos
+ wxStringBase(const wxStringBase& str, size_t nPos, size_t nLen)
+ {
+ wxASSERT_MSG( str.GetStringData()->IsValid(),
+ _T("did you forget to call UngetWriteBuf()?") );
+ Init();
+ size_t strLen = str.length() - nPos; nLen = strLen < nLen ? strLen : nLen;
+ InitWith(str.c_str(), nPos, nLen);
+ }
+ // take all characters from pStart to pEnd
+ wxStringBase(const void *pStart, const void *pEnd);
+
+ // dtor is not virtual, this class must not be inherited from!
+ ~wxStringBase()
+ {
+#if defined(__VISUALC__) && (__VISUALC__ >= 1200)
+ //RN - according to the above VC++ does indeed inline this,
+ //even though it spits out two warnings
+ #pragma warning (disable:4714)
+#endif
+
+ GetStringData()->Unlock();
+ }
+
+#if defined(__VISUALC__) && (__VISUALC__ >= 1200)
+ //re-enable inlining warning
+ #pragma warning (default:4714)
+#endif
+ // overloaded assignment
+ // from another wxString
+ wxStringBase& operator=(const wxStringBase& stringSrc);
+ // from a character
+ wxStringBase& operator=(wxChar ch);
+ // from a C string
+ wxStringBase& operator=(const wxChar *psz);
+
+ // return the length of the string
+ size_type length() const { return GetStringData()->nDataLength; }
+ // return the length of the string
+ size_type size() const { return length(); }
+ // return the maximum size of the string
+ size_type max_size() const { return wxSTRING_MAXLEN; }
+ // resize the string, filling the space with c if c != 0
+ void resize(size_t nSize, wxChar ch = wxT('\0'));
+ // delete the contents of the string
+ void clear() { erase(0, npos); }
+ // returns true if the string is empty
+ bool empty() const { return length() == 0; }
+ // inform string about planned change in size
+ void reserve(size_t sz) { Alloc(sz); }
+ size_type capacity() const { return GetStringData()->nAllocLength; }
+
+ // lib.string.access
+ // return the character at position n
+ value_type at(size_type n) const
+ { wxASSERT_VALID_INDEX( n ); return m_pchData[n]; }
+ // returns the writable character at position n
+ reference at(size_type n)
+ { wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
+
+ // lib.string.modifiers
+ // append elements str[pos], ..., str[pos+n]
+ wxStringBase& append(const wxStringBase& str, size_t pos, size_t n)
+ {
+ wxASSERT(pos <= str.length());
+ ConcatSelf(n, str.c_str() + pos, str.length() - pos);
+ return *this;
+ }
+ // append a string
+ wxStringBase& append(const wxStringBase& str)
+ { ConcatSelf(str.length(), str.c_str()); return *this; }
+ // append first n (or all if n == npos) characters of sz
+ wxStringBase& append(const wxChar *sz)
+ { ConcatSelf(wxStrlen(sz), sz); return *this; }
+ wxStringBase& append(const wxChar *sz, size_t n)
+ { ConcatSelf(n, sz); return *this; }
+ // append n copies of ch
+ wxStringBase& append(size_t n, wxChar ch);
+ // append from first to last
+ wxStringBase& append(const_iterator first, const_iterator last)
+ { ConcatSelf(last - first, first); return *this; }
+
+ // same as `this_string = str'
+ wxStringBase& assign(const wxStringBase& str)
+ { return *this = str; }
+ // same as ` = str[pos..pos + n]
+ wxStringBase& assign(const wxStringBase& str, size_t pos, size_t n)
+ { clear(); return append(str, pos, n); }
+ // same as `= first n (or all if n == npos) characters of sz'
+ wxStringBase& assign(const wxChar *sz)
+ { clear(); return append(sz, wxStrlen(sz)); }
+ wxStringBase& assign(const wxChar *sz, size_t n)
+ { clear(); return append(sz, n); }
+ // same as `= n copies of ch'
+ wxStringBase& assign(size_t n, wxChar ch)
+ { clear(); return append(n, ch); }
+ // assign from first to last
+ wxStringBase& assign(const_iterator first, const_iterator last)
+ { clear(); return append(first, last); }
+
+ // first valid index position
+ const_iterator begin() const { return m_pchData; }
+ // position one after the last valid one
+ const_iterator end() const { return m_pchData + length(); }
+
+ // first valid index position
+ iterator begin();
+ // position one after the last valid one
+ iterator end();
+
+ // insert another string
+ wxStringBase& insert(size_t nPos, const wxStringBase& str)
+ {
+ wxASSERT( str.GetStringData()->IsValid() );
+ return insert(nPos, str.c_str(), str.length());
+ }
+ // insert n chars of str starting at nStart (in str)
+ wxStringBase& insert(size_t nPos, const wxStringBase& str, size_t nStart, size_t n)
+ {
+ wxASSERT( str.GetStringData()->IsValid() );
+ wxASSERT( nStart < str.length() );
+ size_t strLen = str.length() - nStart;
+ n = strLen < n ? strLen : n;
+ return insert(nPos, str.c_str() + nStart, n);
+ }
+ // insert first n (or all if n == npos) characters of sz
+ wxStringBase& insert(size_t nPos, const wxChar *sz, size_t n = npos);
+ // insert n copies of ch
+ wxStringBase& insert(size_t nPos, size_t n, wxChar ch)
+ { return insert(nPos, wxStringBase(n, ch)); }
+ iterator insert(iterator it, wxChar ch)
+ { size_t idx = it - begin(); insert(idx, 1, ch); return begin() + idx; }
+ void insert(iterator it, const_iterator first, const_iterator last)
+ { insert(it - begin(), first, last - first); }
+ void insert(iterator it, size_type n, wxChar ch)
+ { insert(it - begin(), n, ch); }
+
+ // delete characters from nStart to nStart + nLen
+ wxStringBase& erase(size_type pos = 0, size_type n = npos);
+ iterator erase(iterator first, iterator last)
+ {
+ size_t idx = first - begin();
+ erase(idx, last - first);
+ return begin() + idx;
+ }
+ iterator erase(iterator first);
+
+ // explicit conversion to C string (use this with printf()!)
+ const wxChar* c_str() const { return m_pchData; }
+ const wxChar* data() const { return m_pchData; }
+
+ // replaces the substring of length nLen starting at nStart
+ wxStringBase& replace(size_t nStart, size_t nLen, const wxChar* sz);
+ // replaces the substring of length nLen starting at nStart
+ wxStringBase& replace(size_t nStart, size_t nLen, const wxStringBase& str)
+ { return replace(nStart, nLen, str.c_str()); }
+ // replaces the substring with nCount copies of ch
+ wxStringBase& replace(size_t nStart, size_t nLen, size_t nCount, wxChar ch);
+ // replaces a substring with another substring
+ wxStringBase& replace(size_t nStart, size_t nLen,
+ const wxStringBase& str, size_t nStart2, size_t nLen2);
+ // replaces the substring with first nCount chars of sz
+ wxStringBase& replace(size_t nStart, size_t nLen,
+ const wxChar* sz, size_t nCount);
+ wxStringBase& replace(iterator first, iterator last, const_pointer s)
+ { return replace(first - begin(), last - first, s); }
+ wxStringBase& replace(iterator first, iterator last, const_pointer s,
+ size_type n)
+ { return replace(first - begin(), last - first, s, n); }
+ wxStringBase& replace(iterator first, iterator last, const wxStringBase& s)
+ { return replace(first - begin(), last - first, s); }
+ wxStringBase& replace(iterator first, iterator last, size_type n, wxChar c)
+ { return replace(first - begin(), last - first, n, c); }
+ wxStringBase& replace(iterator first, iterator last,
+ const_iterator first1, const_iterator last1)
+ { return replace(first - begin(), last - first, first1, last1 - first1); }
+
+ // swap two strings
+ void swap(wxStringBase& str);
+
+ // All find() functions take the nStart argument which specifies the
+ // position to start the search on, the default value is 0. All functions
+ // return npos if there were no match.
+
+ // find a substring
+ size_t find(const wxStringBase& str, size_t nStart = 0) const;
+
+ // find first n characters of sz
+ size_t find(const wxChar* sz, size_t nStart = 0, size_t n = npos) const;
+
+ // find the first occurence of character ch after nStart
+ size_t find(wxChar ch, size_t nStart = 0) const;
+
+ // rfind() family is exactly like find() but works right to left
+
+ // as find, but from the end
+ size_t rfind(const wxStringBase& str, size_t nStart = npos) const;
+
+ // as find, but from the end
+ size_t rfind(const wxChar* sz, size_t nStart = npos,
+ size_t n = npos) const;
+ // as find, but from the end
+ size_t rfind(wxChar ch, size_t nStart = npos) const;
+
+ // find first/last occurence of any character in the set
+
+ // as strpbrk() but starts at nStart, returns npos if not found
+ size_t find_first_of(const wxStringBase& str, size_t nStart = 0) const
+ { return find_first_of(str.c_str(), nStart); }
+ // same as above
+ size_t find_first_of(const wxChar* sz, size_t nStart = 0) const;
+ size_t find_first_of(const wxChar* sz, size_t nStart, size_t n) const;
+ // same as find(char, size_t)
+ size_t find_first_of(wxChar c, size_t nStart = 0) const
+ { return find(c, nStart); }
+ // find the last (starting from nStart) char from str in this string
+ size_t find_last_of (const wxStringBase& str, size_t nStart = npos) const
+ { return find_last_of(str.c_str(), nStart); }
+ // same as above
+ size_t find_last_of (const wxChar* sz, size_t nStart = npos) const;
+ size_t find_last_of(const wxChar* sz, size_t nStart, size_t n) const;
+ // same as above
+ size_t find_last_of(wxChar c, size_t nStart = npos) const
+ { return rfind(c, nStart); }
+
+ // find first/last occurence of any character not in the set
+
+ // as strspn() (starting from nStart), returns npos on failure
+ size_t find_first_not_of(const wxStringBase& str, size_t nStart = 0) const
+ { return find_first_not_of(str.c_str(), nStart); }
+ // same as above
+ size_t find_first_not_of(const wxChar* sz, size_t nStart = 0) const;
+ size_t find_first_not_of(const wxChar* sz, size_t nStart, size_t n) const;
+ // same as above
+ size_t find_first_not_of(wxChar ch, size_t nStart = 0) const;
+ // as strcspn()
+ size_t find_last_not_of(const wxStringBase& str, size_t nStart = npos) const
+ { return find_last_not_of(str.c_str(), nStart); }
+ // same as above
+ size_t find_last_not_of(const wxChar* sz, size_t nStart = npos) const;
+ size_t find_last_not_of(const wxChar* sz, size_t nStart, size_t n) const;
+ // same as above
+ size_t find_last_not_of(wxChar ch, size_t nStart = npos) const;
+
+ // All compare functions return -1, 0 or 1 if the [sub]string is less,
+ // equal or greater than the compare() argument.
+
+ // 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;
+ // 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;
+
+ size_type copy(wxChar* s, size_type n, size_type pos = 0);
+
+ // substring extraction
+ wxStringBase substr(size_t nStart = 0, size_t nLen = npos) const;
+
+ // string += string
+ wxStringBase& operator+=(const wxStringBase& s) { return append(s); }
+ // string += C string
+ wxStringBase& operator+=(const wxChar *psz) { return append(psz); }
+ // string += char
+ wxStringBase& operator+=(wxChar ch) { return append(1, ch); }
+};
+
+#endif // !wxUSE_STL
+
+// ----------------------------------------------------------------------------
+// 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
+{
+#if !wxUSE_STL
+friend class WXDLLIMPEXP_BASE wxArrayString;
+#endif
+
+ // NB: special care was taken in arranging the member functions in such order
+ // that all inline functions can be effectively inlined, verify that all
+ // performance critical functions are still inlined if you change order!
+private:
+ // if we hadn't made these operators private, it would be possible to
+ // compile "wxString s; s = 17;" without any warnings as 17 is implicitly
+ // converted to char in C and we do have operator=(char)
+ //
+ // NB: we don't need other versions (short/long and unsigned) as attempt
+ // to assign another numeric type to wxString will now result in
+ // ambiguity between operator=(char) and operator=(int)
+ wxString& operator=(int);
+
+ // these methods are not implemented - there is _no_ conversion from int to
+ // string, you're doing something wrong if the compiler wants to call it!
+ //
+ // try `s << i' or `s.Printf("%d", i)' instead
+ wxString(int);
+
+public:
+ // constructors and destructor
+ // ctor for an empty string
+ wxString() : wxStringBase() { }
+ // copy ctor
+ wxString(const wxStringBase& stringSrc) : wxStringBase(stringSrc) { }
+ wxString(const wxString& stringSrc) : wxStringBase(stringSrc) { }
+ // string containing nRepeat copies of ch
+ wxString(wxChar ch, size_t nRepeat = 1)
+ : wxStringBase(nRepeat, ch) { }
+ wxString(size_t nRepeat, wxChar ch)
+ : wxStringBase(nRepeat, ch) { }
+ // ctor takes first nLength characters from C string
+ // (default value of npos means take all the string)
+ wxString(const wxChar *psz)
+ : wxStringBase(psz ? psz : wxT("")) { }
+ wxString(const wxChar *psz, size_t nLength)
+ : wxStringBase(psz, nLength) { }
+ wxString(const wxChar *psz,
+ const wxMBConv& WXUNUSED(conv),
+ size_t nLength = npos)
+ : wxStringBase(psz, nLength == npos ? wxStrlen(psz) : nLength) { }
+
+ // even if we're not built with wxUSE_STL == 1 it is very convenient to allow
+ // implicit conversions from std::string to wxString as this allows to use
+ // the same strings in non-GUI and GUI code, however we don't want to
+ // unconditionally add this ctor as it would make wx lib dependent on
+ // libstdc++ on some Linux versions which is bad, so instead we ask the
+ // client code to define this wxUSE_STD_STRING symbol if they need it
+#if wxUSE_STD_STRING
+ wxString(const wxStdString& s)
+ : wxStringBase(s.c_str()) { }
+#endif // wxUSE_STD_STRING
+
#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 = wxConvLibc, size_t nLength = wxSTRING_MAXLEN);
+ wxString(const char *psz, const wxMBConv& conv, size_t nLength = npos);
// from wxWCharBuffer (i.e. return from wxGetString)
- wxString(const wxWCharBuffer& psz)
- { InitWith(psz, 0, wxSTRING_MAXLEN); }
-#else
+ wxString(const wxWCharBuffer& psz) : wxStringBase(psz.data()) { }
+#else // ANSI
// from C string (for compilers using unsigned char)
- wxString(const unsigned char* psz, size_t nLength = wxSTRING_MAXLEN)
- { InitWith((const char*)psz, 0, nLength); }
- // from multibyte string
- wxString(const char *psz, wxMBConv& WXUNUSED(conv), size_t nLength = wxSTRING_MAXLEN)
- { InitWith(psz, 0, nLength); }
+ wxString(const unsigned char* psz)
+ : wxStringBase((const char*)psz) { }
+ // from part of C string (for compilers using unsigned char)
+ wxString(const unsigned char* psz, size_t nLength)
+ : wxStringBase((const char*)psz, nLength) { }
+
#if wxUSE_WCHAR_T
// from wide (Unicode) string
- wxString(const wchar_t *pwz);
-#endif
+ wxString(const wchar_t *pwz,
+ const wxMBConv& conv = wxConvLibc,
+ size_t nLength = npos);
+#endif // !wxUSE_WCHAR_T
+
// from wxCharBuffer
wxString(const wxCharBuffer& psz)
- { InitWith(psz, 0, wxSTRING_MAXLEN); }
-#endif
- // dtor is not virtual, this class must not be inherited from!
- ~wxString() { GetStringData()->Unlock(); }
+ : wxStringBase(psz) { }
+#endif // Unicode/ANSI
// generic attributes & operations
// as standard strlen()
- size_t Len() const { return GetStringData()->nDataLength; }
+ size_t Len() const { return length(); }
// string contains any characters?
- bool IsEmpty() const { return Len() == 0; }
- // empty string is "FALSE", so !str will return TRUE
- bool operator!() const { return IsEmpty(); }
+ bool IsEmpty() const { return empty(); }
+ // empty string is "false", so !str will return true
+ bool operator!() const { return empty(); }
+ // truncate the string to given length
+ wxString& Truncate(size_t uiLen);
// empty string contents
void Empty()
{
- if ( !IsEmpty() )
- Reinit();
+ Truncate(0);
- // should be empty
- wxASSERT( GetStringData()->nDataLength == 0 );
+ wxASSERT_MSG( empty(), _T("string not empty after call to Empty()?") );
}
// 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
+ wxString tmp(wxEmptyString);
+ swap(tmp);
}
// contents test
// data access (all indexes are 0 based)
// read access
wxChar GetChar(size_t n) const
- { ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
+ { return at(n); }
// read/write access
wxChar& GetWritableChar(size_t n)
- { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
+ { return at(n); }
// write access
void SetChar(size_t n, wxChar ch)
- { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); m_pchData[n] = ch; }
+ { at(n) = ch; }
// get last character
wxChar Last() const
- { wxASSERT( !IsEmpty() ); return m_pchData[Len() - 1]; }
+ {
+ wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
+
+ return at(length() - 1);
+ }
+
// get writable last character
wxChar& Last()
- { wxASSERT( !IsEmpty() ); CopyBeforeWrite(); return m_pchData[Len()-1]; }
-
- // under Unix it is tested with configure, assume it works on other
- // platforms (there might be overloading problems if size_t and int are
- // the same type)
-#if !defined(__UNIX__) || wxUSE_SIZE_T_STRING_OPERATOR
- // operator version of GetChar
- wxChar operator[](size_t n) const
- { ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
-#endif
+ {
+ wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
+ return at(length() - 1);
+ }
+
+ /*
+ Note that we we must define all of the overloads below to avoid
+ ambiguity when using str[0]. Also note that for a conforming compiler we
+ don't need const version of operatorp[] at all as indexed access to
+ const string is provided by implicit conversion to "const wxChar *"
+ below and defining them would only result in ambiguities, but some other
+ compilers refuse to compile "str[0]" without them.
+ */
- // operator version of GetChar
- wxChar operator[](int n) const
- { ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
- // operator version of GetWritableChar
- wxChar& operator[](size_t n)
- { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
+#if defined(__BORLANDC__) || defined(__WATCOMC__) || defined(__MWERKS__)
+ wxChar operator[](int n) const
+ { return wxStringBase::at(n); }
+ wxChar operator[](size_type n) const
+ { return wxStringBase::at(n); }
+#ifndef wxSIZE_T_IS_UINT
+ wxChar operator[](unsigned int n) const
+ { return wxStringBase::at(n); }
+#endif // size_t != unsigned int
+#endif // broken compiler
+
+
+ // operator versions of GetWriteableChar()
+ wxChar& operator[](int n)
+ { return wxStringBase::at(n); }
+ wxChar& operator[](size_type n)
+ { return wxStringBase::at(n); }
+#ifndef wxSIZE_T_IS_UINT
+ wxChar& operator[](unsigned int n)
+ { return wxStringBase::at(n); }
+#endif // size_t != unsigned int
// implicit conversion to C string
- operator const wxChar*() const { return m_pchData; }
- // explicit conversion to C string (use this with printf()!)
- const wxChar* c_str() const { return m_pchData; }
- // (and this with [wx]Printf()!)
- const wxChar* wx_str() const { return m_pchData; }
+ operator const wxChar*() const { return c_str(); }
+
+ // identical to c_str(), for wxWin 1.6x compatibility
+ const wxChar* wx_str() const { return c_str(); }
+ // identical to c_str(), for MFC compatibility
+ const wxChar* GetData() const { return c_str(); }
+
+ // conversion to/from plain (i.e. 7 bit) ASCII: this is useful for
+ // converting numbers or strings which are certain not to contain special
+ // chars (typically system functions, X atoms, environment variables etc.)
+ //
+ // the behaviour of these functions with the strings containing anything
+ // else than 7 bit ASCII characters is undefined, use at your own risk.
+#if wxUSE_UNICODE
+ static wxString FromAscii(const char *ascii); // string
+ static wxString FromAscii(const char ascii); // char
+ const wxCharBuffer ToAscii() const;
+#else // ANSI
+ static wxString FromAscii(const char *ascii) { return wxString( ascii ); }
+ static wxString FromAscii(const char ascii) { return wxString( ascii ); }
+ const char *ToAscii() const { return c_str(); }
+#endif // Unicode/!Unicode
+
+ // conversions with (possible) format conversions: have to return a
+ // buffer with temporary data
//
- const wxChar* GetData() const { return m_pchData; }
+ // the functions defined (in either Unicode or ANSI) mode are mb_str() to
+ // return an ANSI (multibyte) string, wc_str() to return a wide string and
+ // fn_str() to return a string which should be used with the OS APIs
+ // accepting the file names. The return value is always the same, but the
+ // 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(m_pchData); }
- const wxChar* wc_str(wxMBConv& WXUNUSED(conv) = wxConvLibc) const { return m_pchData; }
+ const wxCharBuffer mb_str(const wxMBConv& conv = wxConvLibc) const;
+
+ const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
+
+ const wxChar* wc_str() const { return c_str(); }
+
+ // for compatibility with !wxUSE_UNICODE version
+ const wxChar* wc_str(const wxMBConv& WXUNUSED(conv)) const { return c_str(); }
+
#if wxMBFILES
const wxCharBuffer fn_str() const { return mb_str(wxConvFile); }
-#else
- const wxChar* fn_str() const { return m_pchData; }
-#endif
-#else
- const wxChar* mb_str(wxMBConv& WXUNUSED(conv) = wxConvLibc ) const { return m_pchData; }
+#else // !wxMBFILES
+ const wxChar* fn_str() const { return c_str(); }
+#endif // wxMBFILES/!wxMBFILES
+#else // ANSI
+ const wxChar* mb_str() const { return c_str(); }
+
+ // for compatibility with wxUSE_UNICODE version
+ const wxChar* mb_str(const wxMBConv& WXUNUSED(conv)) const { return c_str(); }
+
+ const wxWX2MBbuf mbc_str() const { return mb_str(); }
+
#if wxUSE_WCHAR_T
- const wxWCharBuffer wc_str(wxMBConv& conv) const { return conv.cMB2WC(m_pchData); }
-#endif
- const wxChar* fn_str() const { return m_pchData; }
+ const wxWCharBuffer wc_str(const 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
- // for convenience
- const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
+#endif // Unicode/ANSI
// overloaded assignment
// from another wxString
- wxString& operator=(const wxString& stringSrc);
+ wxString& operator=(const wxStringBase& stringSrc)
+ { return (wxString&)wxStringBase::operator=(stringSrc); }
// from a character
- wxString& operator=(wxChar ch);
- // from a C string
- wxString& operator=(const wxChar *psz);
+ wxString& operator=(wxChar ch)
+ { return (wxString&)wxStringBase::operator=(ch); }
+ // from a C string - STL probably will crash on NULL,
+ // so we need to compensate in that case
+#if wxUSE_STL
+ wxString& operator=(const wxChar *psz)
+ { if(psz) wxStringBase::operator=(psz); else Clear(); return *this; }
+#else
+ wxString& operator=(const wxChar *psz)
+ { return (wxString&)wxStringBase::operator=(psz); }
+#endif
+
#if wxUSE_UNICODE
// from wxWCharBuffer
- wxString& operator=(const wxWCharBuffer& psz) { return operator=((const wchar_t *)psz); }
-#else
+ wxString& operator=(const wxWCharBuffer& psz)
+ { (void) operator=((const wchar_t *)psz); return *this; }
+#else // ANSI
// from another kind of C string
wxString& operator=(const unsigned char* psz);
#if wxUSE_WCHAR_T
wxString& operator=(const wchar_t *pwz);
#endif
// from wxCharBuffer
- wxString& operator=(const wxCharBuffer& psz) { return operator=((const char *)psz); }
-#endif
+ wxString& operator=(const wxCharBuffer& psz)
+ { (void) operator=((const char *)psz); return *this; }
+#endif // Unicode/ANSI
// string concatenation
// in place concatenation
// string += string
wxString& operator<<(const wxString& s)
{
- wxASSERT( s.GetStringData()->IsValid() );
+#if !wxUSE_STL
+ wxASSERT_MSG( s.GetStringData()->IsValid(),
+ _T("did you forget to call UngetWriteBuf()?") );
+#endif
- ConcatSelf(s.Len(), s);
+ append(s);
return *this;
}
// string += C string
wxString& operator<<(const wxChar *psz)
- { ConcatSelf(wxStrlen(psz), psz); return *this; }
+ { append(psz); return *this; }
// string += char
- wxString& operator<<(wxChar ch) { ConcatSelf(1, &ch); return *this; }
-
- // string += string
- void operator+=(const wxString& s) { (void)operator<<(s); }
- // string += C string
- void operator+=(const wxChar *psz) { (void)operator<<(psz); }
- // string += char
- void operator+=(wxChar ch) { (void)operator<<(ch); }
+ wxString& operator<<(wxChar ch) { append(1, ch); return *this; }
// string += buffer (i.e. from wxGetString)
#if wxUSE_UNICODE
- wxString& operator<<(const wxWCharBuffer& s) { (void)operator<<((const wchar_t *)s); return *this; }
- void operator+=(const wxWCharBuffer& s) { (void)operator<<((const wchar_t *)s); }
-#else
- wxString& operator<<(const wxCharBuffer& s) { (void)operator<<((const char *)s); return *this; }
- void operator+=(const wxCharBuffer& s) { (void)operator<<((const char *)s); }
-#endif
+ wxString& operator<<(const wxWCharBuffer& s)
+ { (void)operator<<((const wchar_t *)s); return *this; }
+ void operator+=(const wxWCharBuffer& s)
+ { (void)operator<<((const wchar_t *)s); }
+#else // !wxUSE_UNICODE
+ wxString& operator<<(const wxCharBuffer& s)
+ { (void)operator<<((const char *)s); return *this; }
+ void operator+=(const wxCharBuffer& s)
+ { (void)operator<<((const char *)s); }
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE
// string += C string
+ wxString& Append(const wxString& s)
+ {
+ // test for empty() to share the string if possible
+ if ( empty() )
+ *this = s;
+ else
+ append(s);
+ return *this;
+ }
wxString& Append(const wxChar* psz)
- { ConcatSelf(wxStrlen(psz), psz); return *this; }
+ { append(psz); return *this; }
// append count copies of given character
wxString& Append(wxChar ch, size_t count = 1u)
- { wxString str(ch, count); return *this << str; }
+ { append(count, ch); return *this; }
+ wxString& Append(const wxChar* psz, size_t nLen)
+ { append(psz, nLen); return *this; }
// prepend a string, return the string itself
wxString& Prepend(const wxString& str)
{ *this = str + *this; return *this; }
// non-destructive concatenation
- //
- friend wxString WXDLLEXPORT operator+(const wxString& string1, const wxString& string2);
- //
- friend wxString WXDLLEXPORT operator+(const wxString& string, wxChar ch);
- //
- friend wxString WXDLLEXPORT operator+(wxChar ch, const wxString& string);
- //
- friend wxString WXDLLEXPORT operator+(const wxString& string, const wxChar *psz);
- //
- friend wxString WXDLLEXPORT operator+(const wxChar *psz, const wxString& string);
+ // two strings
+ friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string1,
+ const wxString& string2);
+ // string with a single char
+ friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch);
+ // char with a string
+ friend wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string);
+ // string with C string
+ friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string,
+ const wxChar *psz);
+ // C string with string
+ friend wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz,
+ const wxString& string);
// stream-like functions
// insert an int into string
- wxString& operator<<(int i);
+ wxString& operator<<(int i)
+ { return (*this) << Format(_T("%d"), i); }
+ // insert an unsigned int into string
+ wxString& operator<<(unsigned int ui)
+ { return (*this) << Format(_T("%u"), ui); }
+ // insert a long into string
+ wxString& operator<<(long l)
+ { return (*this) << Format(_T("%ld"), l); }
+ // insert an unsigned long into string
+ wxString& operator<<(unsigned long ul)
+ { return (*this) << Format(_T("%lu"), ul); }
+#if defined wxLongLong_t && !defined wxLongLongIsLong
+ // insert a long long if they exist and aren't longs
+ wxString& operator<<(wxLongLong_t ll)
+ {
+ const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("d");
+ return (*this) << Format(fmt, ll);
+ }
+ // insert an unsigned long long
+ wxString& operator<<(wxULongLong_t ull)
+ {
+ const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("u");
+ return (*this) << Format(fmt , ull);
+ }
+#endif
// insert a float into string
- wxString& operator<<(float f);
+ wxString& operator<<(float f)
+ { return (*this) << Format(_T("%f"), f); }
// insert a double into string
- wxString& operator<<(double d);
+ wxString& operator<<(double d)
+ { return (*this) << Format(_T("%g"), d); }
// 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 single 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));
+ }
// simple sub-string extraction
// return substring starting at nFirst of length nCount (or till the end
// if nCount = default value)
- wxString Mid(size_t nFirst, size_t nCount = wxSTRING_MAXLEN) const;
+ wxString Mid(size_t nFirst, size_t nCount = npos) const;
- // operator version of Mid()
+ // operator version of Mid()
wxString operator()(size_t start, size_t len) const
{ return Mid(start, len); }
+ // 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
+ bool StartsWith(const wxChar *prefix, wxString *rest = NULL) const;
+
// get first nCount characters
wxString Left(size_t nCount) const;
// get last nCount characters
wxString Right(size_t nCount) const;
- // get all characters before the first occurence of ch
+ // get all characters before the first occurance of ch
// (returns the whole string if ch not found)
wxString BeforeFirst(wxChar ch) const;
// get all characters before the last occurence of ch
// 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 = _T(' '), bool bFromRight = TRUE);
- // truncate string to given length
- wxString& Truncate(size_t uiLen);
+ 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;
- // formated input/output
+ // 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
+ // standard C rules apply (leading '0' => octal, "0x" => hex)
+ // convert to a signed integer
+ bool ToLong(long *val, int base = 10) const;
+ // convert to an unsigned integer
+ bool ToULong(unsigned long *val, int base = 10) const;
+ // convert to a double
+ bool ToDouble(double *val) const;
+
+ // formatted input/output
// as sprintf(), returns the number of characters written or < 0 on error
- int Printf(const wxChar *pszFormat, ...);
+ // (take 'this' into account in attribute parameter count)
+ int Printf(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_2;
// as vprintf(), returns the number of characters written or < 0 on error
int PrintfV(const wxChar* pszFormat, va_list argptr);
+ // returns the string containing the result of Printf() to it
+ static wxString Format(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_1;
+ // the same as above, but takes a va_list
+ static wxString FormatV(const wxChar *pszFormat, va_list argptr);
+
// raw access to string memory
// ensure that string has space for at least nLen characters
// only works if the data of this string is not shared
- void Alloc(size_t nLen);
+ bool Alloc(size_t nLen) { reserve(nLen); /*return capacity() >= nLen;*/ return true; }
// minimize the string's memory
// only works if the data of this string is not shared
- void Shrink();
+ bool Shrink();
+#if !wxUSE_STL
// get writable buffer of at least nLen bytes. Unget() *must* be called
// a.s.a.p. to put string back in a reasonable state!
wxChar *GetWriteBuf(size_t nLen);
// call this immediately after GetWriteBuf() has been used
void UngetWriteBuf();
+ void UngetWriteBuf(size_t nLen);
+#endif
- // wxWindows version 1 compatibility functions
+ // wxWidgets version 1 compatibility functions
// use Mid()
wxString SubString(size_t from, size_t to) const
// values for first parameter of Strip function
enum stripType {leading = 0x1, trailing = 0x2, both = 0x3};
- // use Printf()
- int sprintf(const wxChar *pszFormat, ...);
+ // use Printf()
+ // (take 'this' into account in attribute parameter count)
+ int sprintf(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_2;
// use Cmp()
inline int CompareTo(const wxChar* psz, caseCompare cmp = exact) const
{ return cmp == exact ? Cmp(psz) : CmpNoCase(psz); }
// use Len
- size_t Length() const { return Len(); }
+ size_t Length() const { return length(); }
// Count the number of characters
int Freq(wxChar ch) const;
// use MakeLower
size_t Index(wxChar ch) const { return Find(ch); }
// use Truncate
wxString& Remove(size_t pos) { return Truncate(pos); }
- wxString& RemoveLast() { return Truncate(Len() - 1); }
+ wxString& RemoveLast(size_t n = 1) { return Truncate(length() - n); }
- wxString& Remove(size_t nStart, size_t nLen) { return erase( nStart, nLen ); }
+ wxString& Remove(size_t nStart, size_t nLen)
+ { return (wxString&)erase( nStart, nLen ); }
// use Find()
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(); }
+ // use empty()
+ bool IsNull() const { return empty(); }
-#ifdef wxSTD_STRING_COMPATIBILITY
// std::string compatibility functions
- // an 'invalid' value for string index
- static const size_t npos;
-
- // constructors
// take nLen chars starting at nPos
wxString(const wxString& str, size_t nPos, size_t nLen)
- {
- wxASSERT( str.GetStringData()->IsValid() );
- InitWith(str.c_str(), nPos, nLen == npos ? 0 : nLen);
- }
+ : wxStringBase(str, nPos, nLen) { }
// take all characters from pStart to pEnd
- wxString(const void *pStart, const void *pEnd);
-
- // lib.string.capacity
- // return the length of the string
- size_t size() const { return Len(); }
- // return the length of the string
- size_t length() const { return Len(); }
- // return the maximum size of the string
- size_t max_size() const { return wxSTRING_MAXLEN; }
- // resize the string, filling the space with c if c != 0
- void resize(size_t nSize, wxChar ch = _T('\0'));
- // delete the contents of the string
- void clear() { Empty(); }
- // returns true if the string is empty
- bool empty() const { return IsEmpty(); }
-
- // lib.string.access
- // return the character at position n
- wxChar at(size_t n) const { return GetChar(n); }
- // returns the writable character at position n
- wxChar& at(size_t n) { return GetWritableChar(n); }
+ wxString(const void *pStart, const void *pEnd)
+ : wxStringBase((const wxChar*)pStart, (const wxChar*)pEnd) { }
+#if wxUSE_STL
+ wxString(const_iterator first, const_iterator last)
+ : wxStringBase(first, last) { }
+#endif
// lib.string.modifiers
- // append a string
- wxString& append(const wxString& str)
- { *this += str; return *this; }
// append elements str[pos], ..., str[pos+n]
wxString& append(const wxString& str, size_t pos, size_t n)
- { ConcatSelf(n, str.c_str() + pos); return *this; }
+ { return (wxString&)wxStringBase::append(str, pos, n); }
+ // append a string
+ wxString& append(const wxString& str)
+ { return (wxString&)wxStringBase::append(str); }
// append first n (or all if n == npos) characters of sz
- wxString& append(const wxChar *sz, size_t n = npos)
- { ConcatSelf(n == npos ? wxStrlen(sz) : n, sz); return *this; }
-
+ wxString& append(const wxChar *sz)
+ { return (wxString&)wxStringBase::append(sz); }
+ wxString& append(const wxChar *sz, size_t n)
+ { return (wxString&)wxStringBase::append(sz, n); }
// append n copies of ch
- wxString& append(size_t n, wxChar ch) { return Pad(n, ch); }
+ wxString& append(size_t n, wxChar ch)
+ { return (wxString&)wxStringBase::append(n, ch); }
+ // append from first to last
+ wxString& append(const_iterator first, const_iterator last)
+ { return (wxString&)wxStringBase::append(first, last); }
// same as `this_string = str'
- wxString& assign(const wxString& str) { return (*this) = str; }
+ wxString& assign(const wxString& str)
+ { return (wxString&)wxStringBase::assign(str); }
// same as ` = str[pos..pos + n]
wxString& assign(const wxString& str, size_t pos, size_t n)
- { return *this = wxString((const wxChar *)str + pos, n); }
+ { return (wxString&)wxStringBase::assign(str, pos, n); }
// same as `= first n (or all if n == npos) characters of sz'
- wxString& assign(const wxChar *sz, size_t n = npos)
- { return *this = wxString(sz, n); }
+ wxString& assign(const wxChar *sz)
+ { return (wxString&)wxStringBase::assign(sz); }
+ wxString& assign(const wxChar *sz, size_t n)
+ { return (wxString&)wxStringBase::assign(sz, n); }
// same as `= n copies of ch'
wxString& assign(size_t n, wxChar ch)
- { return *this = wxString(ch, n); }
+ { return (wxString&)wxStringBase::assign(n, ch); }
+ // assign from first to last
+ wxString& assign(const_iterator first, const_iterator last)
+ { return (wxString&)wxStringBase::assign(first, last); }
+
+ // string comparison
+#if !defined(HAVE_STD_STRING_COMPARE)
+ 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;
+ // substring comparison with first nCount characters of sz
+ int compare(size_t nStart, size_t nLen,
+ const wxChar* sz, size_t nCount = npos) const;
+#endif // !defined HAVE_STD_STRING_COMPARE
// insert another string
- wxString& insert(size_t nPos, const wxString& str);
+ wxString& insert(size_t nPos, const wxString& str)
+ { return (wxString&)wxStringBase::insert(nPos, str); }
// insert n chars of str starting at nStart (in str)
wxString& insert(size_t nPos, const wxString& str, size_t nStart, size_t n)
- { return insert(nPos, wxString((const wxChar *)str + nStart, n)); }
-
+ { return (wxString&)wxStringBase::insert(nPos, str, nStart, n); }
// insert first n (or all if n == npos) characters of sz
- wxString& insert(size_t nPos, const wxChar *sz, size_t n = npos)
- { return insert(nPos, wxString(sz, n)); }
+ wxString& insert(size_t nPos, const wxChar *sz)
+ { return (wxString&)wxStringBase::insert(nPos, sz); }
+ wxString& insert(size_t nPos, const wxChar *sz, size_t n)
+ { return (wxString&)wxStringBase::insert(nPos, sz, n); }
// insert n copies of ch
wxString& insert(size_t nPos, size_t n, wxChar ch)
- { return insert(nPos, wxString(ch, n)); }
+ { return (wxString&)wxStringBase::insert(nPos, n, ch); }
+ iterator insert(iterator it, wxChar ch)
+ { return wxStringBase::insert(it, ch); }
+ void insert(iterator it, const_iterator first, const_iterator last)
+ { wxStringBase::insert(it, first, last); }
+ void insert(iterator it, size_type n, wxChar ch)
+ { wxStringBase::insert(it, n, ch); }
// delete characters from nStart to nStart + nLen
- wxString& erase(size_t nStart = 0, size_t nLen = npos);
+ wxString& erase(size_type pos = 0, size_type n = npos)
+ { return (wxString&)wxStringBase::erase(pos, n); }
+ iterator erase(iterator first, iterator last)
+ { return wxStringBase::erase(first, last); }
+ iterator erase(iterator first)
+ { return wxStringBase::erase(first); }
+
+#ifdef wxSTRING_BASE_HASNT_CLEAR
+ void clear() { erase(); }
+#endif
// replaces the substring of length nLen starting at nStart
- wxString& replace(size_t nStart, size_t nLen, const wxChar* sz);
+ wxString& replace(size_t nStart, size_t nLen, const wxChar* sz)
+ { return (wxString&)wxStringBase::replace(nStart, nLen, sz); }
+ // replaces the substring of length nLen starting at nStart
+ wxString& replace(size_t nStart, size_t nLen, const wxString& str)
+ { return (wxString&)wxStringBase::replace(nStart, nLen, str); }
// replaces the substring with nCount copies of ch
- wxString& replace(size_t nStart, size_t nLen, size_t nCount, wxChar ch);
+ wxString& replace(size_t nStart, size_t nLen, size_t nCount, wxChar ch)
+ { return (wxString&)wxStringBase::replace(nStart, nLen, nCount, ch); }
// replaces a substring with another substring
wxString& replace(size_t nStart, size_t nLen,
- const wxString& str, size_t nStart2, size_t nLen2);
- // replaces the substring with first nCount chars of sz
- wxString& replace(size_t nStart, size_t nLen,
- const wxChar* sz, size_t nCount);
+ const wxString& str, size_t nStart2, size_t nLen2)
+ { return (wxString&)wxStringBase::replace(nStart, nLen, str,
+ nStart2, nLen2); }
+ // replaces the substring with first nCount chars of sz
+ wxString& replace(size_t nStart, size_t nLen,
+ const wxChar* sz, size_t nCount)
+ { return (wxString&)wxStringBase::replace(nStart, nLen, sz, nCount); }
+ wxString& replace(iterator first, iterator last, const_pointer s)
+ { return (wxString&)wxStringBase::replace(first, last, s); }
+ wxString& replace(iterator first, iterator last, const_pointer s,
+ size_type n)
+ { return (wxString&)wxStringBase::replace(first, last, s, n); }
+ wxString& replace(iterator first, iterator last, const wxString& s)
+ { return (wxString&)wxStringBase::replace(first, last, s); }
+ wxString& replace(iterator first, iterator last, size_type n, wxChar c)
+ { return (wxString&)wxStringBase::replace(first, last, n, c); }
+ wxString& replace(iterator first, iterator last,
+ const_iterator first1, const_iterator last1)
+ { return (wxString&)wxStringBase::replace(first, last, first1, last1); }
- // swap two strings
- void swap(wxString& str);
+ // string += string
+ wxString& operator+=(const wxString& s)
+ { return (wxString&)wxStringBase::operator+=(s); }
+ // string += C string
+ wxString& operator+=(const wxChar *psz)
+ { return (wxString&)wxStringBase::operator+=(psz); }
+ // string += char
+ wxString& operator+=(wxChar ch)
+ { return (wxString&)wxStringBase::operator+=(ch); }
+};
- // All find() functions take the nStart argument which specifies the
- // position to start the search on, the default value is 0. All functions
- // return npos if there were no match.
+// notice that even though for many compilers the friend declarations above are
+// enough, from the point of view of C++ standard we must have the declarations
+// here as friend ones are not injected in the enclosing namespace and without
+// them the code fails to compile with conforming compilers such as xlC or g++4
+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);
- // find a substring
- size_t find(const wxString& str, size_t nStart = 0) const;
- // VC++ 1.5 can't cope with this syntax.
-#if !defined(__VISUALC__) || defined(__WIN32__)
- // find first n characters of sz
- size_t find(const wxChar* sz, size_t nStart = 0, size_t n = npos) const;
+// define wxArrayString, for compatibility
+#if WXWIN_COMPATIBILITY_2_4 && !wxUSE_STL
+ #include "wx/arrstr.h"
#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(wxChar ch, size_t nStart = 0) const;
-#endif
- // rfind() family is exactly like find() but works right to left
+#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
- // as find, but from the end
- size_t rfind(const wxString& str, size_t nStart = npos) const;
+// ----------------------------------------------------------------------------
+// wxStringBuffer: a tiny class allowing to get a writable pointer into string
+// ----------------------------------------------------------------------------
- // VC++ 1.5 can't cope with this syntax.
-#if !defined(__VISUALC__) || defined(__WIN32__)
- // as find, but from the end
- size_t rfind(const wxChar* sz, size_t nStart = npos,
- size_t n = npos) const;
- // as find, but from the end
- size_t rfind(wxChar ch, size_t nStart = npos) const;
-#endif
+#if wxUSE_STL
- // find first/last occurence of any character in the set
+class WXDLLIMPEXP_BASE wxStringBuffer
+{
+public:
+ wxStringBuffer(wxString& str, size_t lenWanted = 1024)
+ : m_str(str), m_buf(lenWanted)
+ { }
- //
- size_t find_first_of(const wxString& str, size_t nStart = 0) const;
- //
- size_t find_first_of(const wxChar* sz, size_t nStart = 0) const;
- // same as find(char, size_t)
- size_t find_first_of(wxChar c, size_t nStart = 0) const;
- //
- size_t find_last_of (const wxString& str, size_t nStart = npos) const;
- //
- size_t find_last_of (const wxChar* s, size_t nStart = npos) const;
- // same as rfind(char, size_t)
- size_t find_last_of (wxChar c, size_t nStart = npos) const;
+ ~wxStringBuffer() { m_str.assign(m_buf.data(), wxStrlen(m_buf.data())); }
- // find first/last occurence of any character not in the set
+ operator wxChar*() { return m_buf.data(); }
- //
- size_t find_first_not_of(const wxString& str, size_t nStart = 0) const;
- //
- size_t find_first_not_of(const wxChar* s, size_t nStart = 0) const;
- //
- size_t find_first_not_of(wxChar ch, size_t nStart = 0) const;
- //
- size_t find_last_not_of(const wxString& str, size_t nStart=npos) const;
- //
- size_t find_last_not_of(const wxChar* s, size_t nStart = npos) const;
- //
- size_t find_last_not_of(wxChar ch, size_t nStart = npos) const;
+private:
+ wxString& m_str;
+#if wxUSE_UNICODE
+ wxWCharBuffer m_buf;
+#else
+ wxCharBuffer m_buf;
+#endif
- // All compare functions return -1, 0 or 1 if the [sub]string is less,
- // equal or greater than the compare() argument.
+ DECLARE_NO_COPY_CLASS(wxStringBuffer)
+};
- // just like strcmp()
- int compare(const wxString& str) const { return Cmp(str); }
- // comparison with a substring
- int compare(size_t nStart, size_t nLen, const wxString& str) const;
- // comparison of 2 substrings
- int compare(size_t nStart, size_t nLen,
- const wxString& str, size_t nStart2, size_t nLen2) const;
- // just like strcmp()
- int compare(const wxChar* sz) const { return Cmp(sz); }
- // substring comparison with first nCount characters of sz
- int compare(size_t nStart, size_t nLen,
- const wxChar* sz, size_t nCount = npos) const;
+class WXDLLIMPEXP_BASE wxStringBufferLength
+{
+public:
+ wxStringBufferLength(wxString& str, size_t lenWanted = 1024)
+ : m_str(str), m_buf(lenWanted), m_len(0), m_lenSet(false)
+ { }
- // substring extraction
- wxString substr(size_t nStart = 0, size_t nLen = npos) const;
-#endif // wxSTD_STRING_COMPATIBILITY
+ ~wxStringBufferLength()
+ {
+ wxASSERT(m_lenSet);
+ m_str.assign(m_buf.data(), m_len);
+ }
+
+ operator wxChar*() { return m_buf.data(); }
+ void SetLength(size_t length) { m_len = length; m_lenSet = true; }
+
+private:
+ wxString& m_str;
+#if wxUSE_UNICODE
+ wxWCharBuffer m_buf;
+#else
+ wxCharBuffer m_buf;
+#endif
+ size_t m_len;
+ bool m_lenSet;
+
+ DECLARE_NO_COPY_CLASS(wxStringBufferLength)
};
-// ----------------------------------------------------------------------------
-// The string array uses it's knowledge of internal structure of the wxString
-// class to optimize string storage. Normally, we would store pointers to
-// string, but as wxString is, in fact, itself a pointer (sizeof(wxString) is
-// sizeof(char *)) we store these pointers instead. The cast to "wxString *" is
-// really all we need to turn such pointer into a string!
-//
-// Of course, it can be called a dirty hack, but we use twice less memory and
-// this approach is also more speed efficient, so it's probably worth it.
-//
-// Usage notes: when a string is added/inserted, a new copy of it is created,
-// so the original string may be safely deleted. When a string is retrieved
-// from the array (operator[] or Item() method), a reference is returned.
-// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxArrayString
+#else // if !wxUSE_STL
+
+class WXDLLIMPEXP_BASE wxStringBuffer
{
public:
- // type of function used by wxArrayString::Sort()
- typedef int (*CompareFunction)(const wxString& first,
- const wxString& second);
+ wxStringBuffer(wxString& str, size_t lenWanted = 1024)
+ : m_str(str), m_buf(NULL)
+ { m_buf = m_str.GetWriteBuf(lenWanted); }
- // constructors and destructor
- // default ctor
- wxArrayString();
- // copy ctor
- wxArrayString(const wxArrayString& array);
- // assignment operator
- wxArrayString& operator=(const wxArrayString& src);
- // not virtual, this class should not be derived from
- ~wxArrayString();
-
- // memory management
- // empties the list, but doesn't release memory
- void Empty();
- // empties the list and releases memory
- void Clear();
- // preallocates memory for given number of items
- void Alloc(size_t nCount);
- // minimzes the memory usage (by freeing all extra memory)
- void Shrink();
-
- // simple accessors
- // number of elements in the array
- size_t GetCount() const { return m_nCount; }
- // is it empty?
- bool IsEmpty() const { return m_nCount == 0; }
- // number of elements in the array (GetCount is preferred API)
- size_t Count() const { return m_nCount; }
-
- // items access (range checking is done in debug version)
- // get item at position uiIndex
- wxString& Item(size_t nIndex) const
- { wxASSERT( nIndex < m_nCount ); return *(wxString *)&(m_pItems[nIndex]); }
- // same as Item()
- wxString& operator[](size_t nIndex) const { return Item(nIndex); }
- // get last item
- wxString& Last() const { wxASSERT( !IsEmpty() ); return Item(Count() - 1); }
-
- // item management
- // Search the element in the array, starting from the beginning if
- // bFromEnd is FALSE or from end otherwise. If bCase, comparison is case
- // sensitive (default). Returns index of the first item matched or
- // wxNOT_FOUND
- int Index (const wxChar *sz, bool bCase = TRUE, bool bFromEnd = FALSE) const;
- // add new element at the end
- void Add(const wxString& str);
- // add new element at given position
- void Insert(const wxString& str, size_t uiIndex);
- // remove first item matching this value
- void Remove(const wxChar *sz);
- // remove item by index
- void Remove(size_t nIndex);
-
- // sorting
- // sort array elements in alphabetical order (or reversed alphabetical
- // order if reverseOrder parameter is TRUE)
- void Sort(bool reverseOrder = FALSE);
- // sort array elements using specified comparaison function
- void Sort(CompareFunction compareFunction);
+ ~wxStringBuffer() { m_str.UngetWriteBuf(); }
+
+ operator wxChar*() const { return m_buf; }
private:
- void Grow(); // makes array bigger if needed
- void Free(); // free the string stored
+ wxString& m_str;
+ wxChar *m_buf;
+
+ DECLARE_NO_COPY_CLASS(wxStringBuffer)
+};
+
+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);
+ wxASSERT(m_buf != NULL);
+ }
- void DoSort(); // common part of all Sort() variants
+ ~wxStringBufferLength()
+ {
+ wxASSERT(m_lenSet);
+ m_str.UngetWriteBuf(m_len);
+ }
- size_t m_nSize, // current size of the array
- m_nCount; // current number of elements
+ operator wxChar*() const { return m_buf; }
+ void SetLength(size_t length) { m_len = length; m_lenSet = true; }
- wxChar **m_pItems; // pointer to data
+private:
+ wxString& m_str;
+ wxChar *m_buf;
+ size_t m_len;
+ bool m_lenSet;
+
+ DECLARE_NO_COPY_CLASS(wxStringBufferLength)
};
+#endif // !wxUSE_STL
+
// ---------------------------------------------------------------------------
// wxString comparison functions: operator versions are always case sensitive
// ---------------------------------------------------------------------------
-//
-inline bool operator==(const wxString& s1, const wxString& s2) { return (s1.Cmp(s2) == 0); }
-//
-inline bool operator==(const wxString& s1, const wxChar * s2) { return (s1.Cmp(s2) == 0); }
-//
-inline bool operator==(const wxChar * s1, const wxString& s2) { return (s2.Cmp(s1) == 0); }
-//
-inline bool operator!=(const wxString& s1, const wxString& s2) { return (s1.Cmp(s2) != 0); }
-//
-inline bool operator!=(const wxString& s1, const wxChar * s2) { return (s1.Cmp(s2) != 0); }
-//
-inline bool operator!=(const wxChar * s1, const wxString& s2) { return (s2.Cmp(s1) != 0); }
-//
-inline bool operator< (const wxString& s1, const wxString& s2) { return (s1.Cmp(s2) < 0); }
-//
-inline bool operator< (const wxString& s1, const wxChar * s2) { return (s1.Cmp(s2) < 0); }
-//
-inline bool operator< (const wxChar * s1, const wxString& s2) { return (s2.Cmp(s1) > 0); }
-//
-inline bool operator> (const wxString& s1, const wxString& s2) { return (s1.Cmp(s2) > 0); }
-//
-inline bool operator> (const wxString& s1, const wxChar * s2) { return (s1.Cmp(s2) > 0); }
-//
-inline bool operator> (const wxChar * s1, const wxString& s2) { return (s2.Cmp(s1) < 0); }
-//
-inline bool operator<=(const wxString& s1, const wxString& s2) { return (s1.Cmp(s2) <= 0); }
-//
-inline bool operator<=(const wxString& s1, const wxChar * s2) { return (s1.Cmp(s2) <= 0); }
-//
-inline bool operator<=(const wxChar * s1, const wxString& s2) { return (s2.Cmp(s1) >= 0); }
-//
-inline bool operator>=(const wxString& s1, const wxString& s2) { return (s1.Cmp(s2) >= 0); }
-//
-inline bool operator>=(const wxString& s1, const wxChar * s2) { return (s1.Cmp(s2) >= 0); }
-//
-inline bool operator>=(const wxChar * s1, const wxString& s2) { return (s2.Cmp(s1) <= 0); }
-
-wxString WXDLLEXPORT operator+(const wxString& string1, const wxString& string2);
-wxString WXDLLEXPORT operator+(const wxString& string, wxChar ch);
-wxString WXDLLEXPORT operator+(wxChar ch, const wxString& string);
-wxString WXDLLEXPORT operator+(const wxString& string, const wxChar *psz);
-wxString WXDLLEXPORT operator+(const wxChar *psz, const wxString& string);
+
+// 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); }
+inline bool operator==(const wxString& s1, const wxChar * s2)
+ { return s1.Cmp(s2) == 0; }
+inline bool operator==(const wxChar * s1, const wxString& s2)
+ { return s2.Cmp(s1) == 0; }
+inline bool operator!=(const wxString& s1, const wxString& s2)
+ { return (s1.Len() != s2.Len()) || (s1.Cmp(s2) != 0); }
+inline bool operator!=(const wxString& s1, const wxChar * s2)
+ { return s1.Cmp(s2) != 0; }
+inline bool operator!=(const wxChar * s1, const wxString& s2)
+ { return s2.Cmp(s1) != 0; }
+inline bool operator< (const wxString& s1, const wxString& s2)
+ { return s1.Cmp(s2) < 0; }
+inline bool operator< (const wxString& s1, const wxChar * s2)
+ { return s1.Cmp(s2) < 0; }
+inline bool operator< (const wxChar * s1, const wxString& s2)
+ { return s2.Cmp(s1) > 0; }
+inline bool operator> (const wxString& s1, const wxString& s2)
+ { return s1.Cmp(s2) > 0; }
+inline bool operator> (const wxString& s1, const wxChar * s2)
+ { return s1.Cmp(s2) > 0; }
+inline bool operator> (const wxChar * s1, const wxString& s2)
+ { return s2.Cmp(s1) < 0; }
+inline bool operator<=(const wxString& s1, const wxString& s2)
+ { return s1.Cmp(s2) <= 0; }
+inline bool operator<=(const wxString& s1, const wxChar * s2)
+ { return s1.Cmp(s2) <= 0; }
+inline bool operator<=(const wxChar * s1, const wxString& s2)
+ { return s2.Cmp(s1) >= 0; }
+inline bool operator>=(const wxString& s1, const wxString& s2)
+ { return s1.Cmp(s2) >= 0; }
+inline bool operator>=(const wxString& s1, const wxChar * s2)
+ { return s1.Cmp(s2) >= 0; }
+inline bool operator>=(const wxChar * s1, const wxString& s2)
+ { return s2.Cmp(s1) <= 0; }
+
#if wxUSE_UNICODE
-inline wxString WXDLLEXPORT operator+(const wxString& string, const wxWCharBuffer& buf)
-{ return string + (const wchar_t *)buf; }
-inline wxString WXDLLEXPORT operator+(const wxWCharBuffer& buf, const wxString& string)
-{ return (const wchar_t *)buf + string; }
-#else
-inline wxString WXDLLEXPORT operator+(const wxString& string, const wxCharBuffer& buf)
-{ return string + (const char *)buf; }
-inline wxString WXDLLEXPORT operator+(const wxCharBuffer& buf, const wxString& string)
-{ return (const char *)buf + string; }
-#endif
+inline bool operator==(const wxString& s1, const wxWCharBuffer& s2)
+ { return (s1.Cmp((const wchar_t *)s2) == 0); }
+inline bool operator==(const wxWCharBuffer& s1, const wxString& s2)
+ { return (s2.Cmp((const wchar_t *)s1) == 0); }
+inline bool operator!=(const wxString& s1, const wxWCharBuffer& s2)
+ { return (s1.Cmp((const wchar_t *)s2) != 0); }
+inline bool operator!=(const wxWCharBuffer& s1, const wxString& s2)
+ { return (s2.Cmp((const wchar_t *)s1) != 0); }
+#else // !wxUSE_UNICODE
+inline bool operator==(const wxString& s1, const wxCharBuffer& s2)
+ { return (s1.Cmp((const char *)s2) == 0); }
+inline bool operator==(const wxCharBuffer& s1, const wxString& s2)
+ { return (s2.Cmp((const char *)s1) == 0); }
+inline bool operator!=(const wxString& s1, const wxCharBuffer& s2)
+ { return (s1.Cmp((const char *)s2) != 0); }
+inline bool operator!=(const wxCharBuffer& s1, const wxString& s2)
+ { return (s2.Cmp((const char *)s1) != 0); }
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE
+
+#if wxUSE_UNICODE
+inline wxString operator+(const wxString& string, const wxWCharBuffer& buf)
+ { return string + (const wchar_t *)buf; }
+inline wxString operator+(const wxWCharBuffer& buf, const wxString& string)
+ { return (const wchar_t *)buf + string; }
+#else // !wxUSE_UNICODE
+inline wxString operator+(const wxString& string, const wxCharBuffer& buf)
+ { return string + (const char *)buf; }
+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
// ---------------------------------------------------------------------------
-#ifdef wxSTD_STRING_COMPATIBILITY
+// don't pollute the library user's name space
+#undef wxASSERT_VALID_INDEX
+
+#if wxUSE_STD_IOSTREAM
-#include "wx/ioswrap.h"
+#include "wx/iosfwrap.h"
-WXDLLEXPORT istream& operator>>(istream& is, wxString& str);
+WXDLLIMPEXP_BASE wxSTD istream& operator>>(wxSTD istream&, wxString&);
+WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxString&);
#endif // wxSTD_STRING_COMPATIBILITY
projects / wxWidgets.git / blobdiff