X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/16c61f1b48d6e27c40fa850d8a6ecca38a328ce8..ccdcde00d9ae27ca20ff6c3c9495918a0ec725aa:/include/wx/string.h diff --git a/include/wx/string.h b/include/wx/string.h index 1ceea75a1c..51583c89a3 100644 --- a/include/wx/string.h +++ b/include/wx/string.h @@ -29,16 +29,13 @@ // 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 // ---------------------------------------------------------------------------- -#ifdef __WXMAC__ +#include "wx/defs.h" // everybody should include this + +#if defined(__WXMAC__) || defined(__VISAGECPP__) #include #endif @@ -46,49 +43,59 @@ #include #endif -#include -#include -#include -#include -#include +#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 +#endif // HAVE_STRINGS_H -#include "wx/defs.h" // everybody should include this -#include "wx/debug.h" // for wxASSERT() #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 - // --------------------------------------------------------------------------- // 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) <= Len(), _T("invaid 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 + // ---------------------------------------------------------------------------- // global data // ---------------------------------------------------------------------------- @@ -105,14 +112,14 @@ WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString; // 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__) ) return _stricmp(psz1, psz2); @@ -124,6 +131,8 @@ inline int WXDLLEXPORT Stricmp(const char *psz1, const char *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__) @@ -156,6 +165,15 @@ inline int WXDLLEXPORT Stricmp(const char *psz1, const char *psz2) #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, ...); + +// 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 *)&wxEmptyString; } @@ -180,6 +198,12 @@ 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 @@ -211,15 +235,8 @@ struct WXDLLEXPORT wxStringData // - regular expressions support // --------------------------------------------------------------------------- -#ifdef WXSTRING_IS_WXOBJECT -class WXDLLEXPORT wxString : public wxObject -{ - DECLARE_DYNAMIC_CLASS(wxString) -#else //WXSTRING_IS_WXOBJECT class WXDLLEXPORT wxString { -#endif //WXSTRING_IS_WXOBJECT - friend class WXDLLEXPORT wxArrayString; // NB: special care was taken in arranging the member functions in such order @@ -257,12 +274,20 @@ private: void CopyBeforeWrite(); void AllocBeforeWrite(size_t); - // this method is not implemented - there is _no_ conversion from int to + // if we hadn't made these operators private, it would be possible to + // compile "wxString s; s = 17;" without any warnings as 17 is implicitly + // converted to char in C and we do have operator=(char) + // + // NB: we don't need other versions (short/long and unsigned) as attempt + // to assign another numeric type to wxString will now result in + // ambiguity between operator=(char) and operator=(int) + wxString& operator=(int); + + // these methods are not implemented - there is _no_ conversion from int to // string, you're doing something wrong if the compiler wants to call it! // // try `s << i' or `s.Printf("%d", i)' instead wxString(int); - wxString(long); public: // constructors and destructor @@ -288,6 +313,8 @@ 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 @@ -301,13 +328,10 @@ public: // 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); + wxString(const wchar_t *pwz, wxMBConv& conv = wxConvLibc, size_t nLength = wxSTRING_MAXLEN); #endif // !wxUSE_WCHAR_T // from wxCharBuffer @@ -325,14 +349,14 @@ public: bool IsEmpty() const { return Len() == 0; } // 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 string contents void Empty() { - if ( !IsEmpty() ) - Reinit(); + Truncate(0); - // should be empty - wxASSERT( GetStringData()->nDataLength == 0 ); + wxASSERT_MSG( IsEmpty(), _T("string not empty after call to Empty()?") ); } // empty the string and free memory void Clear() @@ -355,13 +379,13 @@ public: // data access (all indexes are 0 based) // read access wxChar GetChar(size_t n) const - { ASSERT_VALID_INDEX( n ); return m_pchData[n]; } + { wxASSERT_VALID_INDEX( n ); return m_pchData[n]; } // read/write access wxChar& GetWritableChar(size_t n) - { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; } + { wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; } // write access void SetChar(size_t n, wxChar ch) - { ASSERT_VALID_INDEX( n ); CopyBeforeWrite(); m_pchData[n] = ch; } + { wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); m_pchData[n] = ch; } // get last character wxChar Last() const @@ -370,40 +394,78 @@ public: wxChar& Last() { wxASSERT( !IsEmpty() ); CopyBeforeWrite(); return m_pchData[Len()-1]; } + /* + 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]; } + { wxASSERT_VALID_INDEX( n ); return m_pchData[n]; } // operator version of GetChar wxChar operator[](int n) const - { ASSERT_VALID_INDEX( n ); return m_pchData[n]; } - // This is a rather ugly hack, but needed to resolve overloading - // conflicts on the AXP architecture: -#ifdef __alpha__ - // operator version of GetChar - wxChar operator[](unsigned int n) const - { ASSERT_VALID_INDEX( n ); return m_pchData[n]; } -#endif - // operator version of GetWritableChar + { wxASSERT_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]; } + { wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; } + +#ifndef wxSIZE_T_IS_UINT + // operator version of GetChar + wxChar operator[](unsigned int n) const + { wxASSERT_VALID_INDEX( n ); return m_pchData[n]; } + + // operator version of GetWriteableChar + wxChar& operator[](unsigned int n) + { wxASSERT_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 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(wxMBConv& WXUNUSED(conv) = wxConvLibc) const { return m_pchData; } + 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); } @@ -411,17 +473,18 @@ public: const wxChar* fn_str() const { return m_pchData; } #endif // wxMBFILES/!wxMBFILES #else // ANSI -#if wxUSE_MULTIBYTE - const wxChar* mb_str(wxMBConv& WXUNUSED(conv) = wxConvLibc) const - { return m_pchData; } - const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); } -#else // !mmultibyte 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(); } -#endif // multibyte/!multibyte + #if wxUSE_WCHAR_T - const wxWCharBuffer wc_str(wxMBConv& conv) const { return conv.cMB2WC(m_pchData); } + 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 // Unicode/ANSI @@ -489,6 +552,8 @@ 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) @@ -508,11 +573,23 @@ 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) @@ -535,15 +612,20 @@ public: // 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 string starts with prefix and return the rest of the + // string in the provided pointer if it is not NULL, otherwise return + // FALSE + bool StartsWith(const wxChar *prefix, wxString *rest = NULL) const; + // get first nCount characters wxString Left(size_t nCount) const; // get last nCount characters wxString Right(size_t nCount) const; - // get all characters before the first occurence of ch + // get all characters before the first occurance of ch // (returns the whole string if ch not found) wxString BeforeFirst(wxChar ch) const; // get all characters before the last occurence of ch @@ -576,8 +658,6 @@ public: 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); - // truncate string to given length - wxString& Truncate(size_t uiLen); // searching and replacing // searching (return starting index, or -1 if not found) @@ -593,12 +673,29 @@ 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, the base is the numeric base in which the conversion should be + // done and must be comprised between 2 and 36 or be 0 in which case the + // standard C rules apply (leading '0' => octal, "0x" => hex) + // convert to a signed integer + bool ToLong(long *val, int base = 10) const; + // convert to an unsigned integer + bool ToULong(unsigned long *val, int base = 10) const; + // convert to a double + bool ToDouble(double *val) const; + // 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 @@ -611,6 +708,7 @@ 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 @@ -645,7 +743,7 @@ 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 ); } @@ -692,6 +790,8 @@ public: 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 @@ -719,16 +819,17 @@ public: wxString& append(size_t n, wxChar ch) { return Pad(n, ch); } // same as `this_string = str' - wxString& assign(const wxString& str) { return (*this) = str; } + wxString& assign(const wxString& str) + { return *this = str; } // same as ` = str[pos..pos + n] wxString& assign(const wxString& str, size_t pos, size_t n) - { return *this = wxString((const wxChar *)str + pos, n); } + { Empty(); return Append(str.c_str() + pos, n); } // same as `= first n (or all if n == npos) characters of sz' wxString& assign(const wxChar *sz, size_t n = npos) - { return *this = wxString(sz, n); } + { Empty(); return Append(sz, n == npos ? wxStrlen(sz) : n); } // same as `= n copies of ch' wxString& assign(size_t n, wxChar ch) - { return *this = wxString(ch, n); } + { Empty(); return Append(ch, n); } // insert another string wxString& insert(size_t nPos, const wxString& str); @@ -754,8 +855,8 @@ 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); @@ -771,7 +872,7 @@ 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__) @@ -790,7 +891,7 @@ 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 @@ -821,7 +922,8 @@ public: // 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; + 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 @@ -833,18 +935,22 @@ 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 }; @@ -871,9 +977,17 @@ public: const wxString& second); // constructors and destructor - // default ctor: if autoSort is TRUE, the array is always sorted (in - // alphabetical order) - wxArrayString(bool autoSort = FALSE); + // default ctor + wxArrayString() { Init(FALSE); } + // if autoSort is TRUE, the array is always sorted (in alphabetical order) + // + // NB: the reason for using int and not bool is that like this we can avoid + // using this ctor for implicit conversions from "const char *" (which + // we'd like to be implicitly converted to wxString instead!) + // + // of course, using explicit would be even better - if all compilers + // supported it... + wxArrayString(int autoSort) { Init(autoSort != 0); } // copy ctor wxArrayString(const wxArrayString& array); // assignment operator @@ -908,6 +1022,12 @@ public: // get last item wxString& Last() const { wxASSERT( !IsEmpty() ); return Item(Count() - 1); } + // return a wxString[], useful for the controls which + // take one in their ctor. You must delete[] it yourself + // once you are done with it. Will return NULL if the + // ArrayString was empty. + wxString* GetStringArray() const; + // 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 @@ -919,10 +1039,13 @@ public: size_t Add(const wxString& str); // add new element at given position void Insert(const wxString& str, size_t uiIndex); + // expand the array to have count elements + void SetCount(size_t count); // 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 @@ -931,7 +1054,14 @@ 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 Init(bool autoSort); // common part of all ctors void Copy(const wxArrayString& src); // copies the contents of another array private: @@ -957,46 +1087,65 @@ public: { Copy(array); } }; +// ---------------------------------------------------------------------------- +// wxStringBuffer: a tiny class allowing to get a writable pointer into string +// ---------------------------------------------------------------------------- + +class WXDLLEXPORT wxStringBuffer +{ +public: + wxStringBuffer(wxString& str, size_t lenWanted = 1024) + : m_str(str) { m_buf = m_str.GetWriteBuf(lenWanted); } + + ~wxStringBuffer() { m_str.UngetWriteBuf(); } + + operator wxChar*() const { return m_buf; } + +private: + wxString& m_str; + wxChar *m_buf; +}; + // --------------------------------------------------------------------------- // 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); } @@ -1009,12 +1158,20 @@ 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 +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); } -#endif +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); @@ -1022,30 +1179,30 @@ 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) +inline wxString operator+(const wxString& string, const wxWCharBuffer& buf) { return string + (const wchar_t *)buf; } -inline wxString WXDLLEXPORT operator+(const wxWCharBuffer& buf, const wxString& string) +inline wxString operator+(const wxWCharBuffer& buf, const wxString& string) { return (const wchar_t *)buf + string; } -#else -inline wxString WXDLLEXPORT operator+(const wxString& string, const wxCharBuffer& buf) +#else // !wxUSE_UNICODE +inline wxString operator+(const wxString& string, const wxCharBuffer& buf) { return string + (const char *)buf; } -inline wxString WXDLLEXPORT operator+(const wxCharBuffer& buf, const wxString& string) +inline wxString operator+(const wxCharBuffer& buf, const wxString& string) { return (const char *)buf + string; } -#endif +#endif // wxUSE_UNICODE/!wxUSE_UNICODE // --------------------------------------------------------------------------- // 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 #include "wx/ioswrap.h" -WXDLLEXPORT istream& operator>>(istream&, wxString&); -WXDLLEXPORT ostream& operator<<(ostream&, const wxString&); +WXDLLEXPORT wxSTD istream& operator>>(wxSTD istream&, wxString&); +WXDLLEXPORT wxSTD ostream& operator<<(wxSTD ostream&, const wxString&); #endif // wxSTD_STRING_COMPATIBILITY