X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c50c1ddcb2f0f10dd41f8ec8904a75c3009289f4..5fe8354960174a56ee21c456ac3ba521a7b9bae5:/include/wx/string.h diff --git a/include/wx/string.h b/include/wx/string.h index 2ad17f4896..7bb5e7db41 100644 --- a/include/wx/string.h +++ b/include/wx/string.h @@ -9,97 +9,141 @@ // Licence: wxWindows license /////////////////////////////////////////////////////////////////////////////// +/* + 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. +*/ + #ifndef _WX_WXSTRINGH__ #define _WX_WXSTRINGH__ #ifdef __GNUG__ -#pragma interface "string.h" + #pragma interface "string.h" #endif -#ifdef __WXMAC__ +// ---------------------------------------------------------------------------- +// 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 +// ---------------------------------------------------------------------------- + +#if defined(__WXMAC__) || defined(__VISAGECPP__) #include #endif -#include -#include -#include -#include -#include +#ifdef __EMX__ + #include +#endif + +#if defined(__VISAGECPP__) && __IBMCPP__ >= 400 + // problem in VACPP V4 with including stdlib.h multiple times + // strconv includes it anyway +# include +# include +# include +# include +#else +# include +# include +# include +# include +# include +#endif #ifdef HAVE_STRINGS_H #include // for strcasecmp() #endif // AIX -#ifndef WX_PRECOMP - #include "wx/defs.h" +#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" + #include "wx/object.h" // base class #endif #endif // !PCH -#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. -*/ - // --------------------------------------------------------------------------- // macros // --------------------------------------------------------------------------- -// compile the std::string compatibility functions if defined -#define wxSTD_STRING_COMPATIBILITY +// 'naughty' cast +#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 ASSERT_VALID_INDEX(i) wxASSERT( (unsigned)(i) <= Len() ) + +// ---------------------------------------------------------------------------- +// 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) +// (as sizeof(StringData) is unknown here, we substract 100) const unsigned int wxSTRING_MAXLEN = UINT_MAX - 100; -// 'naughty' cast -#define WXSTRINGCAST (wxChar *)(const wxChar *) -#define WXCSTRINGCAST (wxChar *)(const wxChar *) -#define MBSTRINGCAST (char *)(const char *) -#define WCSTRINGCAST (wchar_t *)(const wchar_t *) +#endif -// implementation only -#define ASSERT_VALID_INDEX(i) wxASSERT( (unsigned)(i) <= Len() ) +// ---------------------------------------------------------------------------- +// global data +// ---------------------------------------------------------------------------- + +// global pointer to empty string +WXDLLEXPORT_DATA(extern 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(__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(__EMX__) + return stricmp(psz1, psz2); +#elif defined(__WXPM__) + return stricmp(psz1, psz2); +#elif defined(__UNIX__) || defined(__GNUWIN32__) return strcasecmp(psz1, psz2); #elif defined(__MWERKS__) && !defined(__INTEL__) register char c1, c2; @@ -127,23 +171,24 @@ inline int WXDLLEXPORT Stricmp(const char *psz1, const char *psz2) #endif // OS/compiler } -// ---------------------------------------------------------------------------- -// global data -// ---------------------------------------------------------------------------- - -WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString; +// 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, ...); -// global pointer to empty string -WXDLLEXPORT_DATA(extern const wxChar*) g_szNul; +// and wxVsnprintf() is like vsnprintf() or vsprintf() +extern int WXDLLEXPORT wxVsnprintf(wxChar *buf, size_t len, + const wxChar *format, va_list argptr); // return an empty wxString class WXDLLEXPORT wxString; // not yet defined -inline const wxString& wxGetEmptyString() { return *(wxString *)&g_szNul; } +inline const wxString& wxGetEmptyString() { return *(wxString *)&wxEmptyString; } // --------------------------------------------------------------------------- // 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 { int nRefs; // reference count @@ -159,6 +204,12 @@ struct WXDLLEXPORT wxStringData // lock/unlock void Lock() { if ( !IsEmpty() ) nRefs++; } + + // VC++ will refuse to inline this function but profiling shows that it + // is wrong +#if defined(__VISUALC__) && (__VISUALC__ >= 1200) + __forceinline +#endif void Unlock() { if ( !IsEmpty() && --nRefs == 0) free(this); } // if we had taken control over string memory (GetWriteBuf), it's @@ -167,110 +218,6 @@ struct WXDLLEXPORT wxStringData bool IsValid() const { return (nRefs != 0); } }; -// --------------------------------------------------------------------------- -// types of multibyte<->Unicode conversions -// --------------------------------------------------------------------------- -#if wxUSE_WCHAR_T -class WXDLLEXPORT 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; - 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); } -#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(__WXGTK12__) - 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, wxConvFile; -#define wxConv_libc wxConvLibc -#define wxConv_file wxConvFile -WXDLLEXPORT_DATA(extern wxMBConv *) wxConvCurrent; -#define wxConv_current wxConvCurrent -#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...) @@ -318,7 +265,7 @@ private: // 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; } + 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); // as Init, but also frees old data @@ -345,7 +292,9 @@ private: // // try `s << i' or `s.Printf("%d", i)' instead wxString(int); + wxString(unsigned int); wxString(long); + wxString(unsigned long); public: // constructors and destructor @@ -371,6 +320,9 @@ public: // (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); } + #if wxUSE_UNICODE // from multibyte string // (NB: nLength is right now number of Unicode characters, not @@ -379,21 +331,21 @@ public: // from wxWCharBuffer (i.e. return from wxGetString) wxString(const wxWCharBuffer& psz) { InitWith(psz, 0, wxSTRING_MAXLEN); } -#else +#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); } + #if wxUSE_WCHAR_T // from wide (Unicode) string - wxString(const wchar_t *pwz); -#endif + wxString(const wchar_t *pwz, wxMBConv& conv = wxConvLibc); +#endif // !wxUSE_WCHAR_T + // from wxCharBuffer wxString(const wxCharBuffer& psz) { InitWith(psz, 0, wxSTRING_MAXLEN); } -#endif +#endif // Unicode/ANSI + // dtor is not virtual, this class must not be inherited from! ~wxString() { GetStringData()->Unlock(); } @@ -449,47 +401,99 @@ public: 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 + /* + So why do we have all these overloaded operator[]s? A bit of history: + initially there was only one of them, taking size_t. Then people + started complaining because they wanted to use ints as indices (I + wonder why) and compilers were giving warnings about it, so we had to + add the operator[](int). Then it became apparent that you couldn't + write str[0] any longer because there was ambiguity between two + overloads and so you now had to write str[0u] (or, of course, use the + explicit casts to either int or size_t but nobody did this). + + Finally, someone decided to compile wxWin on an Alpha machine and got + a surprize: str[0u] didn't compile there because it is of type + unsigned int and size_t is unsigned _long_ on Alpha and so there was + ambiguity between converting uint to int or ulong. To fix this one we + now add operator[](uint) for the machines where size_t is not already + the same as unsigned int - hopefully this fixes the problem (for some + time) + + The only real fix is, of course, to remove all versions but the one + taking size_t... + */ + // operator version of GetChar wxChar operator[](size_t n) const { ASSERT_VALID_INDEX( n ); return m_pchData[n]; } -#endif // operator version of GetChar wxChar operator[](int n) const { ASSERT_VALID_INDEX( n ); return m_pchData[n]; } - // operator version of GetWritableChar + + // operator version of GetWriteableChar wxChar& operator[](size_t n) { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; } +#ifndef wxSIZE_T_IS_UINT + // operator version of GetChar + wxChar operator[](unsigned int n) const + { ASSERT_VALID_INDEX( n ); return m_pchData[n]; } + + // operator version of GetWriteableChar + wxChar& operator[](unsigned int n) + { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[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()!) + // 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 + // buffer with temporary data + // + // 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(wxMBConv& conv = wxConvLibc) const + { return conv.cWC2MB(m_pchData); } + + const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); } + + const wxChar* wc_str() const { return m_pchData; } + + // for compatibility with !wxUSE_UNICODE version + const wxChar* wc_str(wxMBConv& WXUNUSED(conv)) const { return m_pchData; } + #if wxMBFILES const wxCharBuffer fn_str() const { return mb_str(wxConvFile); } -#else +#else // !wxMBFILES const wxChar* fn_str() const { return m_pchData; } -#endif -#else - const wxChar* mb_str(wxMBConv& WXUNUSED(conv) = wxConvLibc ) const { return m_pchData; } +#endif // wxMBFILES/!wxMBFILES +#else // ANSI + const wxChar* mb_str() const { return m_pchData; } + + // for compatibility with wxUSE_UNICODE version + const wxChar* mb_str(wxMBConv& WXUNUSED(conv)) const { return m_pchData; } + + 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 wxWCharBuffer wc_str(wxMBConv& conv) const + { return conv.cMB2WC(m_pchData); } +#endif // wxUSE_WCHAR_T + const wxChar* fn_str() const { return m_pchData; } -#endif - // for convenience - const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); } +#endif // Unicode/ANSI // overloaded assignment // from another wxString @@ -501,7 +505,7 @@ public: #if wxUSE_UNICODE // from wxWCharBuffer wxString& operator=(const wxWCharBuffer& psz) { return operator=((const wchar_t *)psz); } -#else +#else // ANSI // from another kind of C string wxString& operator=(const unsigned char* psz); #if wxUSE_WCHAR_T @@ -510,7 +514,7 @@ public: #endif // from wxCharBuffer wxString& operator=(const wxCharBuffer& psz) { return operator=((const char *)psz); } -#endif +#endif // Unicode/ANSI // string concatenation // in place concatenation @@ -555,6 +559,8 @@ public: // append count copies of given character wxString& Append(wxChar ch, size_t count = 1u) { wxString str(ch, count); return *this << str; } + wxString& Append(const wxChar* psz, size_t nLen) + { ConcatSelf(nLen, psz); return *this; } // prepend a string, return the string itself wxString& Prepend(const wxString& str) @@ -574,31 +580,54 @@ public: // 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); } // 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 { return wxStrcmp(c_str(), psz); } // same as Cmp() but not case-sensitive - int CmpNoCase(const wxChar *psz) const { return wxStricmp(c_str(), psz); } + int CmpNoCase(const wxChar *psz) const { return wxStricmp(c_str(), psz); } // 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 { return (compareWithCase ? Cmp(psz) : CmpNoCase(psz)) == 0; } + // comparison with a signle character: returns TRUE if equal + bool IsSameAs(wxChar c, bool compareWithCase = TRUE) const + { + return (Len() == 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; - // operator version of Mid() + // operator version of Mid() wxString operator()(size_t start, size_t len) const { return Mid(start, len); } + // check that the tring 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 @@ -635,7 +664,7 @@ public: // remove spaces from left or from right (default) side 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); + wxString& Pad(size_t nCount, wxChar chPad = wxT(' '), bool bFromRight = TRUE); // truncate string to given length wxString& Truncate(size_t uiLen); @@ -653,12 +682,26 @@ public: // 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 + // convert to a signed integer + bool ToLong(long *val) const; + // convert to an unsigned integer + bool ToULong(unsigned long *val) 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, ...); // 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, ...); + // 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 @@ -671,6 +714,7 @@ public: wxChar *GetWriteBuf(size_t nLen); // call this immediately after GetWriteBuf() has been used void UngetWriteBuf(); + void UngetWriteBuf(size_t nLen); // wxWindows version 1 compatibility functions @@ -705,7 +749,7 @@ public: 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(Len() - n); } wxString& Remove(size_t nStart, size_t nLen) { return erase( nStart, nLen ); } @@ -722,6 +766,10 @@ public: #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; @@ -743,11 +791,13 @@ public: // 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')); + 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 @@ -755,6 +805,11 @@ public: // 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(); } + // lib.string.modifiers // append a string wxString& append(const wxString& str) @@ -805,8 +860,8 @@ public: 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); + wxString& replace(size_t nStart, size_t nLen, + const wxChar* sz, size_t nCount); // swap two strings void swap(wxString& str); @@ -822,7 +877,7 @@ public: #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 +#endif // VC++ 1.5 // Gives a duplicate symbol (presumably a case-insensitivity problem) #if !defined(__BORLANDC__) @@ -841,36 +896,42 @@ public: size_t n = npos) const; // as find, but from the end size_t rfind(wxChar ch, size_t nStart = npos) const; -#endif +#endif // VC++ 1.5 // find first/last occurence of any character in the set - // - size_t find_first_of(const wxString& str, size_t nStart = 0) const; - // + // 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; - // - 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; + 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); } // find first/last occurence of any character not in the set - // - 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; - // + // 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; - // - 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; - // + // 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; // All compare functions return -1, 0 or 1 if the [sub]string is less, @@ -879,18 +940,22 @@ public: // 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; + 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; + 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; + const wxChar* sz, size_t nCount = npos) const + { return Mid(nStart, nLen).Cmp(wxString(sz, nCount)); } // substring extraction - wxString substr(size_t nStart = 0, size_t nLen = npos) const; + wxString substr(size_t nStart = 0, size_t nLen = npos) const + { return Mid(nStart, nLen); } #endif // wxSTD_STRING_COMPATIBILITY }; @@ -908,6 +973,7 @@ public: // 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 { public: @@ -916,8 +982,9 @@ public: const wxString& second); // constructors and destructor - // default ctor - wxArrayString(); + // 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 @@ -958,14 +1025,16 @@ public: // 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 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 @@ -974,57 +1043,104 @@ public: // 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); } + +protected: + void Copy(const wxArrayString& src); // copies the contents of another array + private: - void Grow(); // makes array bigger if needed - void Free(); // free the string stored + void Grow(); // makes array bigger if needed + void Free(); // free all the strings stored - void DoSort(); // common part of all Sort() variants + 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 + wxChar **m_pItems; // pointer to data + + bool m_autoSort; // if TRUE, keep the array always sorted +}; + +class WXDLLEXPORT wxSortedArrayString : public wxArrayString +{ +public: + wxSortedArrayString() : wxArrayString(TRUE) + { } + wxSortedArrayString(const wxArrayString& array) : wxArrayString(TRUE) + { Copy(array); } }; // --------------------------------------------------------------------------- // 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); } + +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; } + +// 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); } +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 wxString WXDLLEXPORT operator+(const wxString& string1, const wxString& string2); wxString WXDLLEXPORT operator+(const wxString& string, wxChar ch); @@ -1032,26 +1148,30 @@ 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); #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 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 // --------------------------------------------------------------------------- // Implementation only from here until the end of file // --------------------------------------------------------------------------- -#ifdef wxSTD_STRING_COMPATIBILITY +// don't pollute the library user's name space +#undef ASSERT_VALID_INDEX + +#if defined(wxSTD_STRING_COMPATIBILITY) && wxUSE_STD_IOSTREAM #include "wx/ioswrap.h" -WXDLLEXPORT istream& operator>>(istream& is, wxString& str); +WXDLLEXPORT wxSTD istream& operator>>(wxSTD istream&, wxString&); +WXDLLEXPORT wxSTD ostream& operator<<(wxSTD ostream&, const wxString&); #endif // wxSTD_STRING_COMPATIBILITY