///////////////////////////////////////////////////////////////////////////////
-// 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,
- wxWindows version 1 wxString and std::string and some handy functions
+ wxWidgets version 1 wxString and std::string and some handy functions
missing from string.h.
*/
#ifndef _WX_WXSTRINGH__
#define _WX_WXSTRINGH__
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma interface "string.h"
#endif
-// ----------------------------------------------------------------------------
-// conditinal compilation
-// ----------------------------------------------------------------------------
-
-// compile the std::string compatibility functions if defined
-#define wxSTD_STRING_COMPATIBILITY
-
-// define to derive wxString from wxObject (deprecated!)
-#ifdef WXSTRING_IS_WXOBJECT
- #undef WXSTRING_IS_WXOBJECT
-#endif
-
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
+#include "wx/defs.h" // everybody should include this
+
#if defined(__WXMAC__) || defined(__VISAGECPP__)
#include <ctype.h>
#endif
-#ifdef __EMX__
- #include <std.h>
-#endif
-
#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
// problem in VACPP V4 with including stdlib.h multiple times
// strconv includes it anyway
# 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
+
+#ifdef __WXPALMOS__
+ #include <StringMgr.h>
+#endif
-#include "wx/defs.h" // everybody should include this
#include "wx/wxchar.h" // for wxChar
#include "wx/buffer.h" // for wxCharBuffer
#include "wx/strconv.h" // for wxConvertXXX() macros and wxMBConv classes
-#ifndef WX_PRECOMP
- #ifdef WXSTRING_IS_WXOBJECT
- #include "wx/object.h" // base class
- #endif
-#endif // !PCH
+class WXDLLIMPEXP_BASE wxString;
// ---------------------------------------------------------------------------
// macros
// ---------------------------------------------------------------------------
-// 'naughty' cast
+// 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 *)
// implementation only
-#define ASSERT_VALID_INDEX(i) wxASSERT( (unsigned)(i) <= Len() )
+#define wxASSERT_VALID_INDEX(i) \
+ wxASSERT_MSG( (size_t)(i) <= length(), _T("invalid index in wxString") )
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
-#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
-// must define this static for VA or else you get multiply defined symbols everywhere
-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)
-const unsigned int wxSTRING_MAXLEN = UINT_MAX - 100;
-
-#endif
+#define wxSTRING_MAXLEN wxStringBase::npos
// ----------------------------------------------------------------------------
// global data
// ----------------------------------------------------------------------------
// global pointer to empty string
-WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString;
+extern WXDLLIMPEXP_DATA_BASE(const wxChar*) wxEmptyString;
// ---------------------------------------------------------------------------
// global functions complementing standard C string library replacements for
// portable strcasecmp/_stricmp
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__)
return _stricmp(psz1, psz2);
return stricmp(psz1, psz2);
#elif defined(__WATCOMC__)
return stricmp(psz1, psz2);
+#elif defined(__DJGPP__)
+ return stricmp(psz1, psz2);
#elif defined(__EMX__)
return stricmp(psz1, psz2);
#elif defined(__WXPM__)
return stricmp(psz1, psz2);
-#elif defined(__UNIX__) || defined(__GNUWIN32__)
+#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;
#endif // OS/compiler
}
-// wxSnprintf() is like snprintf() if it's available and sprintf() (always
-// available, but dangerous!) if not
-extern int WXDLLEXPORT wxSnprintf(wxChar *buf, size_t len,
- const wxChar *format, ...);
+#if wxUSE_STL
+
+#include "wx/beforestd.h"
+#include <string>
+#include "wx/afterstd.h"
-// and wxVsnprintf() is like vsnprintf() or vsprintf()
-extern int WXDLLEXPORT wxVsnprintf(wxChar *buf, size_t len,
- const wxChar *format, va_list argptr);
+#if wxUSE_UNICODE
+ #ifdef HAVE_STD_WSTRING
+ typedef std::wstring wxStringBase;
+ #else
+ typedef std::basic_string<wxChar> wxStringBase;
+ #endif
+#else
+ typedef std::string wxStringBase;
+#endif
-// return an empty wxString
-class WXDLLEXPORT wxString; // not yet defined
-inline const wxString& wxGetEmptyString() { return *(wxString *)&wxEmptyString; }
+#if (defined(__GNUG__) && (__GNUG__ < 3)) || \
+ (defined(_MSC_VER) && (_MSC_VER <= 1200))
+ #define wxSTRING_BASE_HASNT_CLEAR
+#endif
+
+#else // if !wxUSE_STL
+
+#ifndef HAVE_STD_STRING_COMPARE
+ #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 this function but profiling shows that it
- // is wrong
+ // 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); }
};
-// ---------------------------------------------------------------------------
-// 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
+class WXDLLIMPEXP_BASE wxStringBase
{
-#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:
+#if !wxUSE_STL
+friend class WXDLLIMPEXP_BASE wxArrayString;
+#endif
+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;
// ctors, use Reinit() otherwise)
void Init() { m_pchData = (wxChar *)wxEmptyString; }
// initializaes the string with (a part of) C-string
- void InitWith(const wxChar *psz, size_t nPos = 0, size_t nLen = wxSTRING_MAXLEN);
+ 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);
+ 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
+ wxStringBase() { Init(); }
+ // copy ctor
+ wxStringBase(const wxStringBase& stringSrc)
+ {
+ wxASSERT_MSG( stringSrc.GetStringData()->IsValid(),
+ _T("did you forget to call UngetWriteBuf()?") );
+
+ if ( stringSrc.empty() ) {
+ // nothing to do for an empty string
+ Init();
+ }
+ else {
+ m_pchData = stringSrc.m_pchData; // share same data
+ GetStringData()->Lock(); // => one more copy
+ }
+ }
+ // string containing nRepeat copies of ch
+ wxStringBase(size_type nRepeat, wxChar ch);
+ // ctor takes first nLength characters from C string
+ // (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, 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 size() const { return GetStringData()->nDataLength; }
+ // return the length of the string
+ size_type length() const { return size(); }
+ // 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 size() == 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]; }
+ value_type operator[](size_type n) const { return at(n); }
+ // returns the writable character at position n
+ reference at(size_type n)
+ { wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
+ reference operator[](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;
+
+ // 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;
+#endif // VC++ 1.5
+
+ // 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;
+
+ // VC++ 1.5 can't cope with this syntax.
+ // 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
+ // performace 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)
public:
// constructors and destructor
// ctor for an empty string
- wxString() { Init(); }
+ wxString() : wxStringBase() { }
// copy ctor
- wxString(const wxString& stringSrc)
- {
- wxASSERT( stringSrc.GetStringData()->IsValid() );
-
- if ( stringSrc.IsEmpty() ) {
- // nothing to do for an empty string
- Init();
- }
- else {
- m_pchData = stringSrc.m_pchData; // share same data
- GetStringData()->Lock(); // => one more copy
- }
- }
+ 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);
+ 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 wxSTRING_MAXLEN means take all the string)
- wxString(const wxChar *psz, size_t nLength = wxSTRING_MAXLEN)
- { InitWith(psz, 0, nLength); }
- wxString(const wxChar *psz, wxMBConv& WXUNUSED(conv), size_t nLength = wxSTRING_MAXLEN)
- { InitWith(psz, 0, nLength); }
+ // (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, wxMBConv& WXUNUSED(conv), size_t nLength = npos)
+ : wxStringBase(psz, nLength == npos ? wxStrlen(psz) : nLength) { }
#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, wxMBConv& conv, size_t nLength = npos);
// from wxWCharBuffer (i.e. return from wxGetString)
- wxString(const wxWCharBuffer& psz)
- { InitWith(psz, 0, wxSTRING_MAXLEN); }
+ 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); }
+ wxString(const unsigned char* psz, size_t nLength = npos)
+ : wxStringBase((const char*)psz, nLength) { }
#if wxUSE_WCHAR_T
// from wide (Unicode) string
- wxString(const wchar_t *pwz, wxMBConv& conv = wxConvLibc);
+ wxString(const wchar_t *pwz, wxMBConv& conv = wxConvLibc, size_t nLength = npos);
#endif // !wxUSE_WCHAR_T
// from wxCharBuffer
wxString(const wxCharBuffer& psz)
- { InitWith(psz, 0, wxSTRING_MAXLEN); }
+ : wxStringBase(psz) { }
#endif // Unicode/ANSI
- // dtor is not virtual, this class must not be inherited from!
- ~wxString() { GetStringData()->Unlock(); }
-
// 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 IsEmpty() const { return empty(); }
+ // 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);
// 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 operator[](n); }
// read/write access
wxChar& GetWritableChar(size_t n)
- { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
+ { return operator[](n); }
// write access
void SetChar(size_t n, wxChar ch)
- { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); m_pchData[n] = ch; }
+ { operator[](n) = ch; }
// get last character
wxChar Last() const
- { wxASSERT( !IsEmpty() ); return m_pchData[Len() - 1]; }
+ {
+ wxASSERT_MSG( !IsEmpty(), _T("wxString: index out of bounds") );
+
+ return operator[](length() - 1);
+ }
+
// get writable last character
wxChar& Last()
- { wxASSERT( !IsEmpty() ); CopyBeforeWrite(); return m_pchData[Len()-1]; }
+ {
+ wxASSERT_MSG( !IsEmpty(), _T("wxString: index out of bounds") );
+ return operator[](length() - 1);
+ }
/*
So why do we have all these overloaded operator[]s? A bit of history:
taking size_t...
*/
- // operator version of GetChar
- wxChar operator[](size_t n) const
- { ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
-
// operator version of GetChar
wxChar operator[](int n) const
- { ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
-
- // operator version of GetWriteableChar
- wxChar& operator[](size_t n)
- { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
-
+ { return wxStringBase::operator[](n); }
+ wxChar& operator[](size_type n)
+ { return wxStringBase::operator[](n); }
+ wxChar operator[](size_type n) const
+ { return wxStringBase::operator[](n); }
#ifndef wxSIZE_T_IS_UINT
// operator version of GetChar
wxChar operator[](unsigned int n) const
- { ASSERT_VALID_INDEX( n ); return m_pchData[n]; }
+ { return wxStringBase::operator[](n); }
// operator version of GetWriteableChar
wxChar& operator[](unsigned int n)
- { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
+ { return wxStringBase::operator[](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; }
- // identical to c_str()
- const wxChar* wx_str() const { return m_pchData; }
- // identical to c_str()
- const wxChar* GetData() const { return m_pchData; }
-
- // conversions with (possible) format convertions: have to return a
+ 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
//
// the functions defined (in either Unicode or ANSI) mode are mb_str() to
// 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 wxCharBuffer mb_str(wxMBConv& conv = wxConvLibc) const;
const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
- const wxChar* wc_str() const { return m_pchData; }
+ const wxChar* wc_str() const { return c_str(); }
// for compatibility with !wxUSE_UNICODE version
- const wxChar* wc_str(wxMBConv& WXUNUSED(conv)) const { return m_pchData; }
+ const wxChar* wc_str(wxMBConv& WXUNUSED(conv)) const { return c_str(); }
#if wxMBFILES
const wxCharBuffer fn_str() const { return mb_str(wxConvFile); }
#else // !wxMBFILES
- const wxChar* fn_str() const { return m_pchData; }
+ const wxChar* fn_str() const { return c_str(); }
#endif // wxMBFILES/!wxMBFILES
#else // ANSI
- const wxChar* mb_str() const { return m_pchData; }
+ const wxChar* mb_str() const { return c_str(); }
// for compatibility with wxUSE_UNICODE version
- const wxChar* mb_str(wxMBConv& WXUNUSED(conv)) const { return m_pchData; }
+ const wxChar* mb_str(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); }
+ const wxWCharBuffer wc_str(wxMBConv& conv) const;
#endif // wxUSE_WCHAR_T
-
- const wxChar* fn_str() const { return m_pchData; }
+#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
// 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);
+ wxString& operator=(wxChar ch)
+ { return (wxString&)wxStringBase::operator=(ch); }
// from a C string
- wxString& operator=(const wxChar *psz);
+ wxString& operator=(const wxChar *psz)
+ { return (wxString&)wxStringBase::operator=(psz); }
#if wxUSE_UNICODE
// from wxWCharBuffer
- wxString& operator=(const wxWCharBuffer& psz) { return operator=((const wchar_t *)psz); }
+ 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);
wxString& operator=(const wchar_t *pwz);
#endif
// from wxCharBuffer
- wxString& operator=(const wxCharBuffer& psz) { return operator=((const char *)psz); }
+ wxString& operator=(const wxCharBuffer& psz)
+ { (void) operator=((const char *)psz); return *this; }
#endif // Unicode/ANSI
// string 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; }
- // 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); }
+ { append(psz); return *this; }
// 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 IsEmpty() to share the string if possible
+ if ( IsEmpty() )
+ *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)
- { ConcatSelf(nLen, psz); return *this; }
+ { append(psz, nLen); return *this; }
// prepend a string, return the string itself
wxString& Prepend(const wxString& str)
// non-destructive concatenation
//
- friend wxString WXDLLEXPORT operator+(const wxString& string1, const wxString& string2);
+ friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string1, const wxString& string2);
//
- friend wxString WXDLLEXPORT operator+(const wxString& string, wxChar ch);
+ friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch);
//
- friend wxString WXDLLEXPORT operator+(wxChar ch, const wxString& string);
+ friend wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string);
//
- friend wxString WXDLLEXPORT operator+(const wxString& string, const wxChar *psz);
+ friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wxChar *psz);
//
- friend wxString WXDLLEXPORT operator+(const wxChar *psz, const wxString& string);
+ friend wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, const wxString& string);
// stream-like functions
// insert an int into string
// 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 (Len() == 1) && (compareWithCase ? GetChar(0u) == c
+ 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()
wxString operator()(size_t start, size_t len) const
// 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
// 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 string
- // is a number and put the value of this number into the pointer provided
+ // 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 = 0) const;
+ bool ToLong(long *val, int base = 10) const;
// convert to an unsigned integer
- bool ToULong(unsigned long *val, int base = 0) const;
+ bool ToULong(unsigned long *val, int base = 10) const;
// convert to a double
bool ToDouble(double *val) const;
// formated 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, ...);
+ 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(size_t n = 1) { return Truncate(Len() - n); }
+ 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(); }
-#ifdef wxSTD_STRING_COMPATIBILITY
// std::string compatibility functions
- // standard types
- typedef wxChar value_type;
- typedef const value_type *const_iterator;
-
- // 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 = wxT('\0'));
- // delete the contents of the string
- void clear() { Empty(); }
- // returns true if the string is empty
- bool empty() const { return IsEmpty(); }
- // inform string about planned change in size
- void reserve(size_t size) { Alloc(size); }
-
- // 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); }
-
- // first valid index position
- const_iterator begin() const { return wx_str(); }
- // position one after the last valid one
- const_iterator end() const { return wx_str() + length(); }
+ 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; }
+ { return (wxString&)wxStringBase::assign(str); }
// same as ` = str[pos..pos + n]
wxString& assign(const wxString& str, size_t pos, size_t n)
- { Empty(); return Append(str.c_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)
- { Empty(); return Append(sz, n == npos ? wxStrlen(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)
- { Empty(); return Append(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
+#ifndef 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
+ 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);
+ 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.
+// define wxArrayString, for compatibility
+#if WXWIN_COMPATIBILITY_2_4 && !wxUSE_STL
+ #include "wx/arrstr.h"
+#endif
- // find a substring
- size_t find(const wxString& str, size_t nStart = 0) const;
+#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
- // 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;
-#endif // VC++ 1.5
+// ----------------------------------------------------------------------------
+// wxStringBuffer: a tiny class allowing to get a writable pointer into string
+// ----------------------------------------------------------------------------
- // 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
- // as find, but from the end
- size_t rfind(const wxString& str, size_t nStart = npos) const;
+class WXDLLIMPEXP_BASE wxStringBuffer
+{
+public:
+ wxStringBuffer(wxString& str, size_t lenWanted = 1024)
+ : m_str(str), m_buf(lenWanted)
+ { }
- // 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 // VC++ 1.5
+ ~wxStringBuffer() { m_str.assign(m_buf.data(), wxStrlen(m_buf.data())); }
- // find first/last occurence of any character in the set
+ operator wxChar*() { return m_buf.data(); }
- // as strpbrk() but starts at nStart, returns npos if not found
- size_t find_first_of(const wxString& 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;
- // 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 wxString& 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;
- // same as above
- size_t find_last_of(wxChar c, size_t nStart = npos) const
- { return rfind(c, nStart); }
+private:
+ wxString& m_str;
+#if wxUSE_UNICODE
+ wxWCharBuffer m_buf;
+#else
+ wxCharBuffer m_buf;
+#endif
- // find first/last occurence of any character not in the set
+ DECLARE_NO_COPY_CLASS(wxStringBuffer)
+};
- // as strspn() (starting from nStart), returns npos on failure
- size_t find_first_not_of(const wxString& 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;
- // 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 wxString& str, size_t nStart = npos) const
- { return find_first_not_of(str.c_str(), nStart); }
- // same as above
- size_t find_last_not_of(const wxChar* sz, size_t nStart = npos) const;
- // same as above
- size_t find_last_not_of(wxChar ch, size_t nStart = 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)
+ { }
- // All compare functions return -1, 0 or 1 if the [sub]string is less,
- // equal or greater than the compare() argument.
+ ~wxStringBufferLength()
+ {
+ wxASSERT(m_lenSet);
+ m_str.assign(m_buf.data(), m_len);
+ }
- // 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
- { return Mid(nStart, nLen).Cmp(str); }
- // comparison of 2 substrings
- int compare(size_t nStart, size_t nLen,
- const wxString& str, size_t nStart2, size_t nLen2) const
- { return Mid(nStart, nLen).Cmp(str.Mid(nStart2, nLen2)); }
- // 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
- { return Mid(nStart, nLen).Cmp(wxString(sz, nCount)); }
+ operator wxChar*() { return m_buf.data(); }
+ void SetLength(size_t length) { m_len = length; m_lenSet = true; }
- // substring extraction
- wxString substr(size_t nStart = 0, size_t nLen = npos) const
- { return Mid(nStart, nLen); }
-#endif // wxSTD_STRING_COMPATIBILITY
+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.
-// ----------------------------------------------------------------------------
+#else // if !wxUSE_STL
-class WXDLLEXPORT wxArrayString
+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: if autoSort is TRUE, the array is always sorted (in
- // alphabetical order)
- wxArrayString(bool autoSort = FALSE);
- // 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 (if the array is not sorted), return its
- // index
- size_t 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);
- void RemoveAt(size_t nIndex) { Remove(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);
-
- // comparison
- // compare two arrays case sensitively
- bool operator==(const wxArrayString& a) const;
- // compare two arrays case sensitively
- bool operator!=(const wxArrayString& a) const { return !(*this == a); }
+ ~wxStringBuffer() { m_str.UngetWriteBuf(); }
-protected:
- void Copy(const wxArrayString& src); // copies the contents of another array
+ operator wxChar*() const { return m_buf; }
private:
- void Grow(); // makes array bigger if needed
- void Free(); // free all the strings stored
+ wxString& m_str;
+ wxChar *m_buf;
- void DoSort(); // common part of all Sort() variants
-
- size_t m_nSize, // current size of the array
- m_nCount; // current number of elements
-
- wxChar **m_pItems; // pointer to data
-
- bool m_autoSort; // if TRUE, keep the array always sorted
+ DECLARE_NO_COPY_CLASS(wxStringBuffer)
};
-class WXDLLEXPORT wxSortedArrayString : public wxArrayString
+class WXDLLIMPEXP_BASE wxStringBufferLength
{
public:
- wxSortedArrayString() : wxArrayString(TRUE)
- { }
- wxSortedArrayString(const wxArrayString& array) : wxArrayString(TRUE)
- { Copy(array); }
+ 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);
+ }
+
+ ~wxStringBufferLength()
+ {
+ wxASSERT(m_lenSet);
+ m_str.UngetWriteBuf(m_len);
+ }
+
+ operator wxChar*() const { return m_buf; }
+ void SetLength(size_t length) { m_len = length; m_lenSet = true; }
+
+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
// ---------------------------------------------------------------------------
+// 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)
inline bool operator>=(const wxChar * s1, const wxString& s2)
{ return s2.Cmp(s1) <= 0; }
-// 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); }
{ return (s2.Cmp((const char *)s1) != 0); }
#endif // wxUSE_UNICODE/!wxUSE_UNICODE
-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);
+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);
+
#if wxUSE_UNICODE
inline wxString operator+(const wxString& string, const wxWCharBuffer& buf)
{ return string + (const wchar_t *)buf; }
{ 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
// ---------------------------------------------------------------------------
// don't pollute the library user's name space
-#undef ASSERT_VALID_INDEX
+#undef wxASSERT_VALID_INDEX
-#if defined(wxSTD_STRING_COMPATIBILITY) && wxUSE_STD_IOSTREAM
+#if wxUSE_STD_IOSTREAM
-#include "wx/ioswrap.h"
+#include "wx/iosfwrap.h"
-WXDLLEXPORT wxSTD istream& operator>>(wxSTD istream&, wxString&);
-WXDLLEXPORT wxSTD ostream& operator<<(wxSTD ostream&, const wxString&);
+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