#include "wx/defs.h" // everybody should include this
+#ifndef __WXPALMOS5__
#if defined(__WXMAC__) || defined(__VISAGECPP__)
#include <ctype.h>
#endif
#ifdef HAVE_STRCASECMP_IN_STRINGS_H
#include <strings.h> // for strcasecmp()
#endif // HAVE_STRCASECMP_IN_STRINGS_H
+#endif // ! __WXPALMOS5__
-#ifdef __WXPALMOS__
- #include <StringMgr.h>
-#endif
-
-#include "wx/wxchar.h" // for wxChar, wxStrlen() etc.
+#include "wx/wxcrtbase.h" // for wxChar, wxStrlen() etc.
#include "wx/strvararg.h"
#include "wx/buffer.h" // for wxCharBuffer
#include "wx/strconv.h" // for wxConvertXXX() macros and wxMBConv classes
#include "wx/stringimpl.h"
+#include "wx/stringops.h"
#include "wx/unichar.h"
-class WXDLLIMPEXP_BASE wxString;
+// by default we cache the mapping of the positions in UTF-8 string to the byte
+// offset as this results in noticeable performance improvements for loops over
+// strings using indices; comment out this line to disable this
+//
+// notice that this optimization is well worth using even in debug builds as it
+// changes asymptotic complexity of algorithms using indices to iterate over
+// wxString back to expected linear from quadratic
+//
+// also notice that wxTLS_TYPE() (__declspec(thread) in this case) is unsafe to
+// use in DLL build under pre-Vista Windows so we disable this code for now, if
+// anybody really needs to use UTF-8 build under Windows with this optimization
+// it would have to be re-tested and probably corrected
+#if wxUSE_UNICODE_UTF8 && !defined(__WXMSW__)
+ #define wxUSE_STRING_POS_CACHE 1
+#else
+ #define wxUSE_STRING_POS_CACHE 0
+#endif
+
+#if wxUSE_STRING_POS_CACHE
+ #include "wx/tls.h"
+
+ // change this 0 to 1 to enable additional (very expensive) asserts
+ // verifying that string caching logic works as expected
+ #if 0
+ #define wxSTRING_CACHE_ASSERT(cond) wxASSERT(cond)
+ #else
+ #define wxSTRING_CACHE_ASSERT(cond)
+ #endif
+#endif // wxUSE_STRING_POS_CACHE
+
+class WXDLLIMPEXP_FWD_BASE wxString;
// unless this symbol is predefined to disable the compatibility functions, do
// use them
#define WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER 1
#endif
+namespace wxPrivate
+{
+ template <typename T> struct wxStringAsBufHelper;
+}
+
// ---------------------------------------------------------------------------
// macros
// ---------------------------------------------------------------------------
return _stricmp(psz1, psz2);
#elif defined(__SC__)
return _stricmp(psz1, psz2);
-#elif defined(__SALFORDC__)
- return stricmp(psz1, psz2);
#elif defined(__BORLANDC__)
return stricmp(psz1, psz2);
#elif defined(__WATCOMC__)
public:
// Ctor constructs the object from char literal; they are needed to make
// operator?: compile and they intentionally take char*, not const char*
- wxCStrData(char *buf);
- wxCStrData(wchar_t *buf);
+ inline wxCStrData(char *buf);
+ inline wxCStrData(wchar_t *buf);
+ inline wxCStrData(const wxCStrData& data);
inline ~wxCStrData();
const wchar_t* AsWChar() const;
operator const wchar_t*() const { return AsWChar(); }
- inline operator bool() const;
-
-#if !wxUSE_UNICODE
+#if !wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY
inline
#endif
const char* AsChar() const;
operator const void*() const { return AsChar(); }
+ inline const wxCharBuffer AsCharBuf() const;
+ inline const wxWCharBuffer AsWCharBuf() const;
+
inline wxString AsString() const;
+ // returns the value as C string in internal representation (equivalent
+ // to AsString().wx_str(), but more efficient)
+ const wxStringCharType *AsInternal() const;
+
// allow expressions like "c_str()[0]":
inline wxUniChar operator[](size_t n) const;
wxUniChar operator[](int n) const { return operator[](size_t(n)); }
wxCStrData operator+(size_t n) const
{ return wxCStrData(m_str, m_offset + n, m_owned); }
- // and these for "str.c_str() + n - 2":
- wxCStrData operator-(int n) const
- {
- wxASSERT_MSG( n <= (int)m_offset,
- _T("attempt to construct address before the beginning of the string") );
- return wxCStrData(m_str, m_offset - n, m_owned);
- }
- wxCStrData operator-(long n) const
- {
- wxASSERT_MSG( n <= (int)m_offset,
- _T("attempt to construct address before the beginning of the string") );
- return wxCStrData(m_str, m_offset - n, m_owned);
- }
- wxCStrData operator-(size_t n) const
+ // and these for "str.c_str() + (p2 - p1)" (it also works for any integer
+ // expression but it must be ptrdiff_t and not e.g. int to work in this
+ // example):
+ wxCStrData operator-(ptrdiff_t n) const
{
- wxASSERT_MSG( n <= m_offset,
+ wxASSERT_MSG( n <= (ptrdiff_t)m_offset,
_T("attempt to construct address before the beginning of the string") );
return wxCStrData(m_str, m_offset - n, m_owned);
}
size_t m_offset;
bool m_owned;
- friend class WXDLLIMPEXP_BASE wxString;
+ friend class WXDLLIMPEXP_FWD_BASE wxString;
};
// ----------------------------------------------------------------------------
protected:
wxStringPrintfMixinBase() {}
- int DoPrintf(const wxChar *format, ...) ATTRIBUTE_PRINTF_2;
- static wxString DoFormat(const wxChar *format, ...) ATTRIBUTE_PRINTF_1;
+#if !wxUSE_UTF8_LOCALE_ONLY
+ int DoPrintfWchar(const wxChar *format, ...);
+ static wxString DoFormatWchar(const wxChar *format, ...);
+#endif
+#if wxUSE_UNICODE_UTF8
+ int DoPrintfUtf8(const char *format, ...);
+ static wxString DoFormatUtf8(const char *format, ...);
+#endif
};
// this class contains template wrappers for wxString's vararg methods, it's
// these are duplicated wxString methods, they're also declared below
// if !wxNEEDS_WXSTRING_PRINTF_MIXIN:
- // int Printf(const wxChar *pszFormat, ...);
- WX_DEFINE_VARARG_FUNC(int, Printf, DoPrintf)
- // static wxString Format(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_1;
- WX_DEFINE_VARARG_FUNC(static typename StringReturnType<T1>::type,
- Format, DoFormat)
- // int sprintf(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_2;
- WX_DEFINE_VARARG_FUNC(int, sprintf, DoPrintf)
+ // static wxString Format(const wString& format, ...) ATTRIBUTE_PRINTF_1;
+ WX_DEFINE_VARARG_FUNC_SANS_N0(static typename StringReturnType<T1>::type,
+ Format, 1, (const wxFormatString&),
+ DoFormatWchar, DoFormatUtf8)
+ // We have to implement the version without template arguments manually
+ // because of the StringReturnType<> hack, although WX_DEFINE_VARARG_FUNC
+ // normally does it itself. It has to be a template so that we can use
+ // the hack, even though there's no real template parameter. We can't move
+ // it to wxStrig, because it would shadow these versions of Format() then.
+ template<typename T>
+ inline static typename StringReturnType<T>::type
+ Format(const T& fmt)
+ {
+ // NB: this doesn't compile if T is not (some form of) a string;
+ // this makes Format's prototype equivalent to
+ // Format(const wxFormatString& fmt)
+ return DoFormatWchar(wxFormatString(fmt));
+ }
+
+ // int Printf(const wxString& format, ...);
+ WX_DEFINE_VARARG_FUNC(int, Printf, 1, (const wxFormatString&),
+ DoPrintfWchar, DoPrintfUtf8)
+ // int sprintf(const wxString& format, ...) ATTRIBUTE_PRINTF_2;
+ WX_DEFINE_VARARG_FUNC(int, sprintf, 1, (const wxFormatString&),
+ DoPrintfWchar, DoPrintfUtf8)
protected:
wxStringPrintfMixin() : wxStringPrintfMixinBase() {}
#pragma warning (disable:4275)
#endif
+#if wxUSE_UNICODE_UTF8
+// see the comment near wxString::iterator for why we need this
+class WXDLLIMPEXP_BASE wxStringIteratorNode
+{
+public:
+ wxStringIteratorNode()
+ : m_str(NULL), m_citer(NULL), m_iter(NULL), m_prev(NULL), m_next(NULL) {}
+ wxStringIteratorNode(const wxString *str,
+ wxStringImpl::const_iterator *citer)
+ { DoSet(str, citer, NULL); }
+ wxStringIteratorNode(const wxString *str, wxStringImpl::iterator *iter)
+ { DoSet(str, NULL, iter); }
+ ~wxStringIteratorNode()
+ { clear(); }
+
+ inline void set(const wxString *str, wxStringImpl::const_iterator *citer)
+ { clear(); DoSet(str, citer, NULL); }
+ inline void set(const wxString *str, wxStringImpl::iterator *iter)
+ { clear(); DoSet(str, NULL, iter); }
+
+ const wxString *m_str;
+ wxStringImpl::const_iterator *m_citer;
+ wxStringImpl::iterator *m_iter;
+ wxStringIteratorNode *m_prev, *m_next;
+
+private:
+ inline void clear();
+ inline void DoSet(const wxString *str,
+ wxStringImpl::const_iterator *citer,
+ wxStringImpl::iterator *iter);
+
+ // the node belongs to a particular iterator instance, it's not copied
+ // when a copy of the iterator is made
+ DECLARE_NO_COPY_CLASS(wxStringIteratorNode)
+};
+#endif // wxUSE_UNICODE_UTF8
+
class WXDLLIMPEXP_BASE wxString
#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
: public wxStringPrintfMixin
// buffer for holding temporary substring when using any of the methods
// that take (char*,size_t) or (wchar_t*,size_t) arguments:
- // FIXME-UTF8: This will need changes when UTF8 build is introduced
template<typename T>
struct SubstrBufFromType
{
size_t len;
SubstrBufFromType(const T& data_, size_t len_)
- : data(data_), len(len_) {}
+ : data(data_), len(len_)
+ {
+ wxASSERT_MSG( len != npos, "must have real length" );
+ }
};
#if wxUSE_UNICODE_UTF8
{ return ConvertStr(str, n, wxConvLibc); }
#endif
- // moves the iterator to the next Unicode character
- static void IncIter(wxStringImpl::iterator& i) { ++i; }
- static void IncIter(wxStringImpl::const_iterator& i) { ++i; }
- // moves the iterator to the previous Unicode character
- static void DecIter(wxStringImpl::iterator& i) { --i; }
- static void DecIter(wxStringImpl::const_iterator& i) { --i; }
- // moves the iterator by n Unicode characters
- static wxStringImpl::iterator AddToIter(wxStringImpl::iterator i, int n)
- { return i + n; }
- static wxStringImpl::const_iterator AddToIter(wxStringImpl::const_iterator i, int n)
- { return i + n; }
- // returns distance of the two iterators in Unicode characters
- static int DiffIters(wxStringImpl::iterator i1, wxStringImpl::iterator i2)
- { return i1 - i2; }
- static int DiffIters(wxStringImpl::const_iterator i1, wxStringImpl::const_iterator i2)
- { return i1 - i2; }
-
- // encodes the character to a form used to represent it in internal
- // representation (returns a string in UTF8 version)
- static wxChar EncodeChar(wxUniChar ch) { return (wxChar)ch; }
- static wxUniChar DecodeChar(wxStringImpl::const_iterator i) { return *i; }
-
// translates position index in wxString to/from index in underlying
// wxStringImpl:
static size_t PosToImpl(size_t pos) { return pos; }
static size_t LenToImpl(size_t len) { return len; }
static size_t PosFromImpl(size_t pos) { return pos; }
+ // we don't want to define these as empty inline functions as it could
+ // result in noticeable (and quite unnecessary in non-UTF-8 build) slowdown
+ // in debug build where the inline functions are not effectively inlined
+ #define wxSTRING_INVALIDATE_CACHE()
+ #define wxSTRING_INVALIDATE_CACHED_LENGTH()
+ #define wxSTRING_UPDATE_CACHED_LENGTH(n)
+ #define wxSTRING_SET_CACHED_LENGTH(n)
+
#else // wxUSE_UNICODE_UTF8
- // checks correctness of UTF-8 sequence
- static bool IsValidUtf8String(const char *c);
-#ifdef __WXDEBUG__
- static bool IsValidUtf8LeadByte(unsigned char c);
+ static wxCharBuffer ImplStr(const char* str,
+ const wxMBConv& conv = wxConvLibc)
+ { return ConvertStr(str, npos, conv).data; }
+ static SubstrBufFromMB ImplStr(const char* str, size_t n,
+ const wxMBConv& conv = wxConvLibc)
+ { return ConvertStr(str, n, conv); }
+
+ static wxCharBuffer ImplStr(const wchar_t* str)
+ { return ConvertStr(str, npos, wxMBConvUTF8()).data; }
+ static SubstrBufFromWC ImplStr(const wchar_t* str, size_t n)
+ { return ConvertStr(str, n, wxMBConvUTF8()); }
+
+#if wxUSE_STRING_POS_CACHE
+ // this is an extremely simple cache used by PosToImpl(): each cache element
+ // contains the string it applies to and the index corresponding to the last
+ // used position in this wxString in its m_impl string
+ //
+ // NB: notice that this struct (and nested Element one) must be a POD or we
+ // wouldn't be able to use a thread-local variable of this type, in
+ // particular it should have no ctor -- we rely on statics being
+ // initialized to 0 instead
+ struct Cache
+ {
+ enum { SIZE = 8 };
+
+ struct Element
+ {
+ const wxString *str; // the string to which this element applies
+ size_t pos, // the cached index in this string
+ impl, // the corresponding position in its m_impl
+ len; // cached length or npos if unknown
+
+ // reset cached index to 0
+ void ResetPos() { pos = impl = 0; }
+
+ // reset position and length
+ void Reset() { ResetPos(); len = npos; }
+ };
+
+ // cache the indices mapping for the last few string used
+ Element cached[SIZE];
+
+ // the last used index
+ unsigned lastUsed;
+ };
+
+#ifndef wxHAS_COMPILER_TLS
+ // we must use an accessor function and not a static variable when the TLS
+ // variables support is implemented in the library (and not by the compiler)
+ // because the global s_cache variable could be not yet initialized when a
+ // ctor of another global object is executed and if that ctor uses any
+ // wxString methods, bad things happen
+ //
+ // however notice that this approach does not work when compiler TLS is used,
+ // at least not with g++ 4.1.2 under amd64 as it apparently compiles code
+ // using this accessor incorrectly when optimizations are enabled (-O2 is
+ // enough) -- luckily we don't need it then neither as static __thread
+ // variables are initialized by 0 anyhow then and so we can use the variable
+ // directly
+ WXEXPORT static Cache& GetCache()
+ {
+ static wxTLS_TYPE(Cache) s_cache;
+
+ return wxTLS_VALUE(s_cache);
+ }
+
+ // this helper struct is used to ensure that GetCache() is called during
+ // static initialization time, i.e. before any threads creation, as otherwise
+ // the static s_cache construction inside GetCache() wouldn't be MT-safe
+ friend struct wxStrCacheInitializer;
+#else // wxHAS_COMPILER_TLS
+ static wxTLS_TYPE(Cache) ms_cache;
+ static Cache& GetCache() { return wxTLS_VALUE(ms_cache); }
+#endif // !wxHAS_COMPILER_TLS/wxHAS_COMPILER_TLS
+
+ static Cache::Element *GetCacheBegin() { return GetCache().cached; }
+ static Cache::Element *GetCacheEnd() { return GetCacheBegin() + Cache::SIZE; }
+ static unsigned& LastUsedCacheElement() { return GetCache().lastUsed; }
+
+ // this is used in debug builds only to provide a convenient function,
+ // callable from a debugger, to show the cache contents
+ friend struct wxStrCacheDumper;
+
+ // uncomment this to have access to some profiling statistics on program
+ // termination
+ //#define wxPROFILE_STRING_CACHE
+
+#ifdef wxPROFILE_STRING_CACHE
+ static struct PosToImplCacheStats
+ {
+ unsigned postot, // total non-trivial calls to PosToImpl
+ poshits, // cache hits from PosToImpl()
+ mishits, // cached position beyond the needed one
+ sumpos, // sum of all positions, used to compute the
+ // average position after dividing by postot
+ sumofs, // sum of all offsets after using the cache, used to
+ // compute the average after dividing by hits
+ lentot, // number of total calls to length()
+ lenhits; // number of cache hits in length()
+ } ms_cacheStats;
+
+ friend struct wxStrCacheStatsDumper;
+
+ #define wxCACHE_PROFILE_FIELD_INC(field) ms_cacheStats.field++
+ #define wxCACHE_PROFILE_FIELD_ADD(field, val) ms_cacheStats.field += (val)
+#else // !wxPROFILE_STRING_CACHE
+ #define wxCACHE_PROFILE_FIELD_INC(field)
+ #define wxCACHE_PROFILE_FIELD_ADD(field, val)
+#endif // wxPROFILE_STRING_CACHE/!wxPROFILE_STRING_CACHE
+
+ // note: it could seem that the functions below shouldn't be inline because
+ // they are big, contain loops and so the compiler shouldn't be able to
+ // inline them anyhow, however moving them into string.cpp does decrease the
+ // code performance by ~5%, at least when using g++ 4.1 so do keep them here
+ // unless tests show that it's not advantageous any more
+
+ // return the pointer to the cache element for this string or NULL if not
+ // cached
+ Cache::Element *FindCacheElement() const
+ {
+ // profiling seems to show a small but consistent gain if we use this
+ // simple loop instead of starting from the last used element (there are
+ // a lot of misses in this function...)
+ Cache::Element * const cacheBegin = GetCacheBegin();
+#ifndef wxHAS_COMPILER_TLS
+ // during destruction tls calls may return NULL, in this case return NULL
+ // immediately without accessing anything else
+ if ( cacheBegin == NULL )
+ return NULL;
#endif
+ Cache::Element * const cacheEnd = GetCacheEnd();
+ for ( Cache::Element *c = cacheBegin; c != cacheEnd; c++ )
+ {
+ if ( c->str == this )
+ return c;
+ }
+
+ return NULL;
+ }
+
+ // unlike FindCacheElement(), this one always returns a valid pointer to the
+ // cache element for this string, it may have valid last cached position and
+ // its corresponding index in the byte string or not
+ Cache::Element *GetCacheElement() const
+ {
+ Cache::Element * const cacheBegin = GetCacheBegin();
+ Cache::Element * const cacheEnd = GetCacheEnd();
+ Cache::Element * const cacheStart = cacheBegin + LastUsedCacheElement();
+
+ // check the last used first, this does no (measurable) harm for a miss
+ // but does help for simple loops addressing the same string all the time
+ if ( cacheStart->str == this )
+ return cacheStart;
+
+ // notice that we're going to check cacheStart again inside this call but
+ // profiling shows that it's still faster to use a simple loop like
+ // inside FindCacheElement() than manually looping with wrapping starting
+ // from the cache entry after the start one
+ Cache::Element *c = FindCacheElement();
+ if ( !c )
+ {
+ // claim the next cache entry for this string
+ c = cacheStart;
+ if ( ++c == cacheEnd )
+ c = cacheBegin;
+
+ c->str = this;
+ c->Reset();
+
+ // and remember the last used element
+ LastUsedCacheElement() = c - cacheBegin;
+ }
+
+ return c;
+ }
+
+ size_t DoPosToImpl(size_t pos) const
+ {
+ wxCACHE_PROFILE_FIELD_INC(postot);
+
+ // NB: although the case of pos == 1 (and offset from cached position
+ // equal to 1) are common, nothing is gained by writing special code
+ // for handling them, the compiler (at least g++ 4.1 used) seems to
+ // optimize the code well enough on its own
+
+ wxCACHE_PROFILE_FIELD_ADD(sumpos, pos);
+
+ Cache::Element * const cache = GetCacheElement();
+
+ // cached position can't be 0 so if it is, it means that this entry was
+ // used for length caching only so far, i.e. it doesn't count as a hit
+ // from our point of view
+ if ( cache->pos )
+ {
+ wxCACHE_PROFILE_FIELD_INC(poshits);
+ }
+
+ if ( pos == cache->pos )
+ return cache->impl;
+
+ // this seems to happen only rarely so just reset the cache in this case
+ // instead of complicating code even further by seeking backwards in this
+ // case
+ if ( cache->pos > pos )
+ {
+ wxCACHE_PROFILE_FIELD_INC(mishits);
+
+ cache->ResetPos();
+ }
+
+ wxCACHE_PROFILE_FIELD_ADD(sumofs, pos - cache->pos);
- // table of offsets to skip forward when iterating
- static unsigned char ms_utf8IterTable[256];
- static void IncIter(wxStringImpl::iterator& i)
+ wxStringImpl::const_iterator i(m_impl.begin() + cache->impl);
+ for ( size_t n = cache->pos; n < pos; n++ )
+ wxStringOperations::IncIter(i);
+
+ cache->pos = pos;
+ cache->impl = i - m_impl.begin();
+
+ wxSTRING_CACHE_ASSERT(
+ (int)cache->impl == (begin() + pos).impl() - m_impl.begin() );
+
+ return cache->impl;
+ }
+
+ void InvalidateCache()
{
- wxASSERT( IsValidUtf8LeadByte(*i) );
- i += ms_utf8IterTable[(unsigned char)*i];
+ Cache::Element * const cache = FindCacheElement();
+ if ( cache )
+ cache->Reset();
}
- static void IncIter(wxStringImpl::const_iterator& i)
+
+ void InvalidateCachedLength()
{
- wxASSERT( IsValidUtf8LeadByte(*i) );
- i += ms_utf8IterTable[(unsigned char)*i];
+ Cache::Element * const cache = FindCacheElement();
+ if ( cache )
+ cache->len = npos;
}
- static void DecIter(wxStringImpl::iterator& i);
- static void DecIter(wxStringImpl::const_iterator& i);
- static wxStringImpl::iterator AddToIter(wxStringImpl::iterator i, int n);
- static wxStringImpl::const_iterator AddToIter(wxStringImpl::const_iterator i, int n);
- static int DiffIters(wxStringImpl::const_iterator i1, wxStringImpl::const_iterator i2);
- static int DiffIters(wxStringImpl::iterator i1, wxStringImpl::iterator i2);
+ void SetCachedLength(size_t len)
+ {
+ // we optimistically cache the length here even if the string wasn't
+ // present in the cache before, this seems to do no harm and the
+ // potential for avoiding length recomputation for long strings looks
+ // interesting
+ GetCacheElement()->len = len;
+ }
- struct Utf8CharBuffer
+ void UpdateCachedLength(ptrdiff_t delta)
{
- char data[5];
- operator const char*() const { return data; }
- };
- static Utf8CharBuffer EncodeChar(wxUniChar ch);
- // returns n copies of ch encoded in UTF-8 string
- static wxCharBuffer EncodeNChars(size_t n, wxUniChar ch);
+ Cache::Element * const cache = FindCacheElement();
+ if ( cache && cache->len != npos )
+ {
+ wxSTRING_CACHE_ASSERT( (ptrdiff_t)cache->len + delta >= 0 );
+
+ cache->len += delta;
+ }
+ }
- // returns the length of UTF-8 encoding of the character with lead byte 'c'
- static size_t GetUtf8CharLength(char c)
+ #define wxSTRING_INVALIDATE_CACHE() InvalidateCache()
+ #define wxSTRING_INVALIDATE_CACHED_LENGTH() InvalidateCachedLength()
+ #define wxSTRING_UPDATE_CACHED_LENGTH(n) UpdateCachedLength(n)
+ #define wxSTRING_SET_CACHED_LENGTH(n) SetCachedLength(n)
+#else // !wxUSE_STRING_POS_CACHE
+ size_t DoPosToImpl(size_t pos) const
{
- wxASSERT( IsValidUtf8LeadByte(c) );
- return ms_utf8IterTable[(unsigned char)c];
+ return (begin() + pos).impl() - m_impl.begin();
}
- // decodes single UTF-8 character from UTF-8 string
- // FIXME-UTF8: move EncodeChar/DecodeChar and other operations to separate
- // class
- static wxUniChar DecodeChar(wxStringImpl::const_iterator i)
- { return wxUniCharRef::DecodeChar(i); }
- friend class WXDLLIMPEXP_BASE wxUniCharRef;
+ #define wxSTRING_INVALIDATE_CACHE()
+ #define wxSTRING_INVALIDATE_CACHED_LENGTH()
+ #define wxSTRING_UPDATE_CACHED_LENGTH(n)
+ #define wxSTRING_SET_CACHED_LENGTH(n)
+#endif // wxUSE_STRING_POS_CACHE/!wxUSE_STRING_POS_CACHE
size_t PosToImpl(size_t pos) const
{
- if ( pos == 0 || pos == npos )
- return pos;
- else
- return wxStringImpl::const_iterator(begin() + pos) - m_impl.begin();
+ return pos == 0 || pos == npos ? pos : DoPosToImpl(pos);
}
void PosLenToImpl(size_t pos, size_t len, size_t *implPos, size_t *implLen) const;
if ( pos == 0 || pos == npos )
return pos;
else
- return const_iterator(m_impl.begin() + pos) - begin();
+ return const_iterator(this, m_impl.begin() + pos) - begin();
}
-
- size_t IterToImplPos(wxStringImpl::iterator i) const
- { return wxStringImpl::const_iterator(i) - m_impl.begin(); }
-
- // FIXME-UTF8: return as-is without copying under UTF8 locale, return
- // converted string under other locales - needs wxCharBuffer
- // changes
- static wxCharBuffer ImplStr(const char* str,
- const wxMBConv& conv = wxConvLibc)
- { return ConvertStr(str, npos, conv).data; }
- static SubstrBufFromMB ImplStr(const char* str, size_t n,
- const wxMBConv& conv = wxConvLibc)
- { return ConvertStr(str, n, conv); }
-
- static wxCharBuffer ImplStr(const wchar_t* str)
- { return ConvertStr(str, npos, wxConvUTF8).data; }
- static SubstrBufFromWC ImplStr(const wchar_t* str, size_t n)
- { return ConvertStr(str, n, wxConvUTF8); }
#endif // !wxUSE_UNICODE_UTF8/wxUSE_UNICODE_UTF8
public:
typedef size_t size_type;
typedef wxUniChar const_reference;
-#if wxUSE_STL
+#if wxUSE_STD_STRING
#if wxUSE_UNICODE_UTF8
// random access is not O(1), as required by Random Access Iterator
#define WX_STR_ITERATOR_TAG std::bidirectional_iterator_tag
#else
#define WX_STR_ITERATOR_TAG std::random_access_iterator_tag
#endif
+ #define WX_DEFINE_ITERATOR_CATEGORY(cat) typedef cat iterator_category;
#else
- #define WX_STR_ITERATOR_TAG void /* dummy type */
+ // not defining iterator_category at all in this case is better than defining
+ // it as some dummy type -- at least it results in more intelligible error
+ // messages
+ #define WX_DEFINE_ITERATOR_CATEGORY(cat)
#endif
- #define WX_STR_ITERATOR_IMPL(iterator_name, pointer_type, \
- reference_type, reference_ctor) \
+ #define WX_STR_ITERATOR_IMPL(iterator_name, pointer_type, reference_type) \
private: \
typedef wxStringImpl::iterator_name underlying_iterator; \
public: \
- typedef WX_STR_ITERATOR_TAG iterator_category; \
+ WX_DEFINE_ITERATOR_CATEGORY(WX_STR_ITERATOR_TAG) \
typedef wxUniChar value_type; \
typedef int difference_type; \
typedef reference_type reference; \
typedef pointer_type pointer; \
\
- reference operator*() const { return reference_ctor; } \
reference operator[](size_t n) const { return *(*this + n); } \
\
iterator_name& operator++() \
- { wxString::IncIter(m_cur); return *this; } \
+ { wxStringOperations::IncIter(m_cur); return *this; } \
iterator_name& operator--() \
- { wxString::DecIter(m_cur); return *this; } \
+ { wxStringOperations::DecIter(m_cur); return *this; } \
iterator_name operator++(int) \
{ \
iterator_name tmp = *this; \
- wxString::IncIter(m_cur); \
+ wxStringOperations::IncIter(m_cur); \
return tmp; \
} \
iterator_name operator--(int) \
{ \
iterator_name tmp = *this; \
- wxString::DecIter(m_cur); \
+ wxStringOperations::DecIter(m_cur); \
return tmp; \
} \
\
- iterator_name& operator+=(int n) \
- { m_cur = wxString::AddToIter(m_cur, n); return *this; } \
- iterator_name& operator+=(size_t n) \
- { m_cur = wxString::AddToIter(m_cur, (int)n); return *this; } \
- iterator_name& operator-=(int n) \
- { m_cur = wxString::AddToIter(m_cur, -n); return *this; } \
- iterator_name& operator-=(size_t n) \
- { m_cur = wxString::AddToIter(m_cur, -(int)n); return *this; } \
+ iterator_name& operator+=(ptrdiff_t n) \
+ { \
+ m_cur = wxStringOperations::AddToIter(m_cur, n); \
+ return *this; \
+ } \
+ iterator_name& operator-=(ptrdiff_t n) \
+ { \
+ m_cur = wxStringOperations::AddToIter(m_cur, -n); \
+ return *this; \
+ } \
\
difference_type operator-(const iterator_name& i) const \
- { return wxString::DiffIters(m_cur, i.m_cur); } \
+ { return wxStringOperations::DiffIters(m_cur, i.m_cur); } \
\
bool operator==(const iterator_name& i) const \
{ return m_cur == i.m_cur; } \
\
private: \
/* for internal wxString use only: */ \
- operator underlying_iterator() const { return m_cur; } \
+ underlying_iterator impl() const { return m_cur; } \
\
- friend class WXDLLIMPEXP_BASE wxString; \
- friend class WXDLLIMPEXP_BASE wxCStrData; \
+ friend class wxString; \
+ friend class wxCStrData; \
\
private: \
underlying_iterator m_cur
- class const_iterator;
+ class WXDLLIMPEXP_FWD_BASE const_iterator;
#if wxUSE_UNICODE_UTF8
- class iterator
- {
- // NB: In UTF-8 build, (non-const) iterator needs to keep reference
- // to the underlying wxStringImpl, because UTF-8 is variable-length
- // encoding and changing the value pointer to by an iterator using
- // its operator* requires calling wxStringImpl::replace() if the old
- // and new values differ in their encoding's length.
+ // NB: In UTF-8 build, (non-const) iterator needs to keep reference
+ // to the underlying wxStringImpl, because UTF-8 is variable-length
+ // encoding and changing the value pointer to by an iterator (using
+ // its operator*) requires calling wxStringImpl::replace() if the old
+ // and new values differ in their encoding's length.
+ //
+ // Furthermore, the replace() call may invalid all iterators for the
+ // string, so we have to keep track of outstanding iterators and update
+ // them if replace() happens.
+ //
+ // This is implemented by maintaining linked list of iterators for every
+ // string and traversing it in wxUniCharRef::operator=(). Head of the
+ // list is stored in wxString. (FIXME-UTF8)
- WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef,
- wxUniCharRef::CreateForString(m_str, m_cur));
+ class WXDLLIMPEXP_BASE iterator
+ {
+ WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef);
public:
- iterator(const iterator& i) : m_cur(i.m_cur), m_str(i.m_str) {}
+ iterator() {}
+ iterator(const iterator& i)
+ : m_cur(i.m_cur), m_node(i.str(), &m_cur) {}
+ iterator& operator=(const iterator& i)
+ {
+ if (&i != this)
+ {
+ m_cur = i.m_cur;
+ m_node.set(i.str(), &m_cur);
+ }
+ return *this;
+ }
+
+ reference operator*()
+ { return wxUniCharRef::CreateForString(*str(), m_cur); }
- iterator operator+(int n) const
- { return iterator(m_str, wxString::AddToIter(m_cur, n)); }
- iterator operator+(size_t n) const
- { return iterator(m_str, wxString::AddToIter(m_cur, (int)n)); }
- iterator operator-(int n) const
- { return iterator(m_str, wxString::AddToIter(m_cur, -n)); }
- iterator operator-(size_t n) const
- { return iterator(m_str, wxString::AddToIter(m_cur, -(int)n)); }
+ iterator operator+(ptrdiff_t n) const
+ { return iterator(str(), wxStringOperations::AddToIter(m_cur, n)); }
+ iterator operator-(ptrdiff_t n) const
+ { return iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); }
private:
iterator(wxString *str, underlying_iterator ptr)
- : m_cur(ptr), m_str(str->m_impl) {}
- iterator(wxStringImpl& str, underlying_iterator ptr)
- : m_cur(ptr), m_str(str) {}
+ : m_cur(ptr), m_node(str, &m_cur) {}
- wxStringImpl& m_str;
+ wxString* str() const { return const_cast<wxString*>(m_node.m_str); }
+
+ wxStringIteratorNode m_node;
friend class const_iterator;
};
+
+ class WXDLLIMPEXP_BASE const_iterator
+ {
+ // NB: reference_type is intentionally value, not reference, the character
+ // may be encoded differently in wxString data:
+ WX_STR_ITERATOR_IMPL(const_iterator, const wxChar*, wxUniChar);
+
+ public:
+ const_iterator() {}
+ const_iterator(const const_iterator& i)
+ : m_cur(i.m_cur), m_node(i.str(), &m_cur) {}
+ const_iterator(const iterator& i)
+ : m_cur(i.m_cur), m_node(i.str(), &m_cur) {}
+
+ const_iterator& operator=(const const_iterator& i)
+ {
+ if (&i != this)
+ {
+ m_cur = i.m_cur;
+ m_node.set(i.str(), &m_cur);
+ }
+ return *this;
+ }
+ const_iterator& operator=(const iterator& i)
+ { m_cur = i.m_cur; m_node.set(i.str(), &m_cur); return *this; }
+
+ reference operator*() const
+ { return wxStringOperations::DecodeChar(m_cur); }
+
+ const_iterator operator+(ptrdiff_t n) const
+ { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, n)); }
+ const_iterator operator-(ptrdiff_t n) const
+ { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); }
+
+ private:
+ // for internal wxString use only:
+ const_iterator(const wxString *str, underlying_iterator ptr)
+ : m_cur(ptr), m_node(str, &m_cur) {}
+
+ const wxString* str() const { return m_node.m_str; }
+
+ wxStringIteratorNode m_node;
+ };
+
+ size_t IterToImplPos(wxString::iterator i) const
+ { return wxStringImpl::const_iterator(i.impl()) - m_impl.begin(); }
+
+ iterator GetIterForNthChar(size_t n)
+ { return iterator(this, m_impl.begin() + PosToImpl(n)); }
+ const_iterator GetIterForNthChar(size_t n) const
+ { return const_iterator(this, m_impl.begin() + PosToImpl(n)); }
#else // !wxUSE_UNICODE_UTF8
- class iterator
+
+ class WXDLLIMPEXP_BASE iterator
{
- WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef,
- wxUniCharRef::CreateForString(m_cur));
+ WX_STR_ITERATOR_IMPL(iterator, wxChar*, wxUniCharRef);
public:
+ iterator() {}
iterator(const iterator& i) : m_cur(i.m_cur) {}
- iterator operator+(int n) const
- { return iterator(wxString::AddToIter(m_cur, n)); }
- iterator operator+(size_t n) const
- { return iterator(wxString::AddToIter(m_cur, (int)n)); }
- iterator operator-(int n) const
- { return iterator(wxString::AddToIter(m_cur, -n)); }
- iterator operator-(size_t n) const
- { return iterator(wxString::AddToIter(m_cur, -(int)n)); }
+ reference operator*()
+ { return wxUniCharRef::CreateForString(m_cur); }
+
+ iterator operator+(ptrdiff_t n) const
+ { return iterator(wxStringOperations::AddToIter(m_cur, n)); }
+ iterator operator-(ptrdiff_t n) const
+ { return iterator(wxStringOperations::AddToIter(m_cur, -n)); }
private:
// for internal wxString use only:
friend class const_iterator;
};
-#endif // wxUSE_UNICODE_UTF8/!wxUSE_UNICODE_UTF8
- class const_iterator
+ class WXDLLIMPEXP_BASE const_iterator
{
// NB: reference_type is intentionally value, not reference, the character
// may be encoded differently in wxString data:
- WX_STR_ITERATOR_IMPL(const_iterator, const wxChar*, wxUniChar,
- wxString::DecodeChar(m_cur));
+ WX_STR_ITERATOR_IMPL(const_iterator, const wxChar*, wxUniChar);
public:
+ const_iterator() {}
const_iterator(const const_iterator& i) : m_cur(i.m_cur) {}
const_iterator(const iterator& i) : m_cur(i.m_cur) {}
- const_iterator operator+(int n) const
- { return const_iterator(wxString::AddToIter(m_cur, n)); }
- const_iterator operator+(size_t n) const
- { return const_iterator(wxString::AddToIter(m_cur, (int)n)); }
- const_iterator operator-(int n) const
- { return const_iterator(wxString::AddToIter(m_cur, -n)); }
- const_iterator operator-(size_t n) const
- { return const_iterator(wxString::AddToIter(m_cur, -(int)n)); }
+ reference operator*() const
+ { return wxStringOperations::DecodeChar(m_cur); }
+
+ const_iterator operator+(ptrdiff_t n) const
+ { return const_iterator(wxStringOperations::AddToIter(m_cur, n)); }
+ const_iterator operator-(ptrdiff_t n) const
+ { return const_iterator(wxStringOperations::AddToIter(m_cur, -n)); }
private:
// for internal wxString use only:
const_iterator(underlying_iterator ptr) : m_cur(ptr) {}
+ const_iterator(const wxString *WXUNUSED(str), underlying_iterator ptr)
+ : m_cur(ptr) {}
};
+ iterator GetIterForNthChar(size_t n) { return begin() + n; }
+ const_iterator GetIterForNthChar(size_t n) const { return begin() + n; }
+#endif // wxUSE_UNICODE_UTF8/!wxUSE_UNICODE_UTF8
+
#undef WX_STR_ITERATOR_TAG
#undef WX_STR_ITERATOR_IMPL
public:
typedef T iterator_type;
- typedef typename T::iterator_category iterator_category;
+ WX_DEFINE_ITERATOR_CATEGORY(typename T::iterator_category)
typedef typename T::value_type value_type;
typedef typename T::difference_type difference_type;
typedef typename T::reference reference;
typedef typename T::pointer *pointer;
+ reverse_iterator_impl() {}
reverse_iterator_impl(iterator_type i) : m_cur(i) {}
reverse_iterator_impl(const reverse_iterator_impl& ri)
: m_cur(ri.m_cur) {}
{ reverse_iterator_impl tmp = *this; ++m_cur; return tmp; }
// NB: explicit <T> in the functions below is to keep BCC 5.5 happy
- reverse_iterator_impl operator+(int n) const
- { return reverse_iterator_impl<T>(m_cur - n); }
- reverse_iterator_impl operator+(size_t n) const
+ reverse_iterator_impl operator+(ptrdiff_t n) const
{ return reverse_iterator_impl<T>(m_cur - n); }
- reverse_iterator_impl operator-(int n) const
+ reverse_iterator_impl operator-(ptrdiff_t n) const
{ return reverse_iterator_impl<T>(m_cur + n); }
- reverse_iterator_impl operator-(size_t n) const
- { return reverse_iterator_impl<T>(m_cur + n); }
- reverse_iterator_impl operator+=(int n)
- { m_cur -= n; return *this; }
- reverse_iterator_impl operator+=(size_t n)
+ reverse_iterator_impl operator+=(ptrdiff_t n)
{ m_cur -= n; return *this; }
- reverse_iterator_impl operator-=(int n)
- { m_cur += n; return *this; }
- reverse_iterator_impl operator-=(size_t n)
+ reverse_iterator_impl operator-=(ptrdiff_t n)
{ m_cur += n; return *this; }
unsigned operator-(const reverse_iterator_impl& i) const
// wxCStrData) to an iterator into the string
static const_iterator CreateConstIterator(const wxCStrData& data)
{
- return const_iterator(data.m_str->begin() + data.m_offset);
+ return const_iterator(data.m_str,
+ (data.m_str->begin() + data.m_offset).impl());
}
+ // in UTF-8 STL build, creation from std::string requires conversion under
+ // non-UTF8 locales, so we can't have and use wxString(wxStringImpl) ctor;
+ // instead we define dummy type that lets us have wxString ctor for creation
+ // from wxStringImpl that couldn't be used by user code (in all other builds,
+ // "standard" ctors can be used):
+#if wxUSE_UNICODE_UTF8 && wxUSE_STL_BASED_WXSTRING
+ struct CtorFromStringImplTag {};
+
+ wxString(CtorFromStringImplTag* WXUNUSED(dummy), const wxStringImpl& src)
+ : m_impl(src) {}
+
+ static wxString FromImpl(const wxStringImpl& src)
+ { return wxString((CtorFromStringImplTag*)NULL, src); }
+#else
+ #if !wxUSE_STL_BASED_WXSTRING
+ wxString(const wxStringImpl& src) : m_impl(src) { }
+ // else: already defined as wxString(wxStdString) below
+ #endif
+ static wxString FromImpl(const wxStringImpl& src) { return wxString(src); }
+#endif
+
public:
// constructors and destructor
// ctor for an empty string
wxString() {}
// copy ctor
- // FIXME-UTF8: this one needs to do UTF-8 conversion in UTF-8 build!
- wxString(const wxStringImpl& stringSrc) : m_impl(stringSrc) { }
-
wxString(const wxString& stringSrc) : m_impl(stringSrc.m_impl) { }
// string containing nRepeat copies of ch
- wxString(wxUniChar ch, size_t nRepeat = 1)
+ wxString(wxUniChar ch, size_t nRepeat = 1 )
{ assign(nRepeat, ch); }
wxString(size_t nRepeat, wxUniChar ch)
{ assign(nRepeat, ch); }
wxString(const wxWCharBuffer& buf)
{ assign(buf.data()); } // FIXME-UTF8: fix for embedded NUL and buffer length
+ // NB: this version uses m_impl.c_str() to force making a copy of the
+ // string, so that "wxString(str.c_str())" idiom for passing strings
+ // between threads works
wxString(const wxCStrData& cstr)
- : m_impl(cstr.AsString().m_impl) { }
+ : m_impl(cstr.AsString().m_impl.c_str()) { }
// as we provide both ctors with this signature for both char and unsigned
// char string, we need to provide one for wxCStrData to resolve ambiguity
// and because wxString is convertible to wxCStrData and const wxChar *
// we also need to provide this one
wxString(const wxString& str, size_t nLength)
- : m_impl(str.Mid(0, nLength).m_impl) {}
+ { assign(str, nLength); }
+
+
+#if wxUSE_STRING_POS_CACHE
+ ~wxString()
+ {
+ // we need to invalidate our cache entry as another string could be
+ // recreated at the same address (unlikely, but still possible, with the
+ // heap-allocated strings but perfectly common with stack-allocated ones)
+ InvalidateCache();
+ }
+#endif // wxUSE_STRING_POS_CACHE
// even if we're not built with wxUSE_STL == 1 it is very convenient to allow
- // implicit conversions from std::string to wxString as this allows to use
- // the same strings in non-GUI and GUI code, however we don't want to
- // unconditionally add this ctor as it would make wx lib dependent on
+ // implicit conversions from std::string to wxString and vice verse as this
+ // allows to use the same strings in non-GUI and GUI code, however we don't
+ // want to unconditionally add this ctor as it would make wx lib dependent on
// libstdc++ on some Linux versions which is bad, so instead we ask the
// client code to define this wxUSE_STD_STRING symbol if they need it
-#if wxUSE_STD_STRING && !wxUSE_STL_BASED_WXSTRING
- wxString(const wxStdString& s)
- // FIXME-UTF8: this one needs to do UTF-8 conversion in UTF-8 build!
- : m_impl(s.c_str()) { } // FIXME-UTF8: this is broken for embedded 0s
-#endif // wxUSE_STD_STRING && !wxUSE_STL_BASED_WXSTRING
+#if wxUSE_STD_STRING
+ #if wxUSE_UNICODE_WCHAR
+ wxString(const wxStdWideString& str) : m_impl(str) {}
+ #else // UTF-8 or ANSI
+ wxString(const wxStdWideString& str)
+ { assign(str.c_str(), str.length()); }
+ #endif
+
+ #if !wxUSE_UNICODE // ANSI build
+ // FIXME-UTF8: do this in UTF8 build #if wxUSE_UTF8_LOCALE_ONLY, too
+ wxString(const std::string& str) : m_impl(str) {}
+ #else // Unicode
+ wxString(const std::string& str)
+ { assign(str.c_str(), str.length()); }
+ #endif
+#endif // wxUSE_STD_STRING
+
+ // Unlike ctor from std::string, we provide conversion to std::string only
+ // if wxUSE_STL and not merely wxUSE_STD_STRING (which is on by default),
+ // because it conflicts with operator const char/wchar_t*:
+#if wxUSE_STL
+ #if wxUSE_UNICODE_WCHAR && wxUSE_STL_BASED_WXSTRING
+ // wxStringImpl is std::string in the encoding we want
+ operator const wxStdWideString&() const { return m_impl; }
+ #else
+ // wxStringImpl is either not std::string or needs conversion
+ operator wxStdWideString() const
+ // FIXME-UTF8: broken for embedded NULs
+ { return wxStdWideString(wc_str()); }
+ #endif
+
+ #if (!wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY) && wxUSE_STL_BASED_WXSTRING
+ // wxStringImpl is std::string in the encoding we want
+ operator const std::string&() const { return m_impl; }
+ #else
+ // wxStringImpl is either not std::string or needs conversion
+ operator std::string() const
+ // FIXME-UTF8: broken for embedded NULs
+ { return std::string(mb_str()); }
+ #endif
+#endif // wxUSE_STL
+ wxString Clone() const
+ {
+ // make a deep copy of the string, i.e. the returned string will have
+ // ref count = 1 with refcounted implementation
+ return wxString::FromImpl(wxStringImpl(m_impl.c_str(), m_impl.length()));
+ }
// first valid index position
- const_iterator begin() const { return const_iterator(m_impl.begin()); }
+ const_iterator begin() const { return const_iterator(this, m_impl.begin()); }
iterator begin() { return iterator(this, m_impl.begin()); }
// position one after the last valid one
- const_iterator end() const { return const_iterator(m_impl.end()); }
+ const_iterator end() const { return const_iterator(this, m_impl.end()); }
iterator end() { return iterator(this, m_impl.end()); }
// first element of the reversed string
// std::string methods:
#if wxUSE_UNICODE_UTF8
- size_t length() const { return end() - begin(); } // FIXME-UTF8: optimize!
+ size_t length() const
+ {
+#if wxUSE_STRING_POS_CACHE
+ wxCACHE_PROFILE_FIELD_INC(lentot);
+
+ Cache::Element * const cache = GetCacheElement();
+
+ if ( cache->len == npos )
+ {
+ // it's probably not worth trying to be clever and using cache->pos
+ // here as it's probably 0 anyhow -- you usually call length() before
+ // starting to index the string
+ cache->len = end() - begin();
+ }
+ else
+ {
+ wxCACHE_PROFILE_FIELD_INC(lenhits);
+
+ wxSTRING_CACHE_ASSERT( (int)cache->len == end() - begin() );
+ }
+
+ return cache->len;
+#else // !wxUSE_STRING_POS_CACHE
+ return end() - begin();
+#endif // wxUSE_STRING_POS_CACHE/!wxUSE_STRING_POS_CACHE
+ }
#else
size_t length() const { return m_impl.length(); }
#endif
bool empty() const { return m_impl.empty(); }
- size_type capacity() const { return m_impl.capacity(); } // FIXME-UTF8
- void reserve(size_t sz) { m_impl.reserve(sz); } // FIXME-UTF8
+ // NB: these methods don't have a well-defined meaning in UTF-8 case
+ size_type capacity() const { return m_impl.capacity(); }
+ void reserve(size_t sz) { m_impl.reserve(sz); }
void resize(size_t nSize, wxUniChar ch = wxT('\0'))
{
+ const size_t len = length();
+ if ( nSize == len)
+ return;
+
#if wxUSE_UNICODE_UTF8
+ if ( nSize < len )
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ // we can't use wxStringImpl::resize() for truncating the string as it
+ // counts in bytes, not characters
+ erase(nSize);
+ return;
+ }
+
+ // we also can't use (presumably more efficient) resize() if we have to
+ // append characters taking more than one byte
if ( !ch.IsAscii() )
{
- size_t len = length();
- if ( nSize == len)
- return;
- else if ( nSize < len )
- erase(nSize);
- else
- append(nSize - len, ch);
+ append(nSize - len, ch);
}
- else
-#endif
+ else // can use (presumably faster) resize() version
+#endif // wxUSE_UNICODE_UTF8
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
m_impl.resize(nSize, (wxStringCharType)ch);
+ }
}
wxString substr(size_t nStart = 0, size_t nLen = npos) const
{
size_t pos, len;
PosLenToImpl(nStart, nLen, &pos, &len);
- return m_impl.substr(pos, len);
+ return FromImpl(m_impl.substr(pos, len));
}
// generic attributes & operations
// truncate the string to given length
wxString& Truncate(size_t uiLen);
// empty string contents
- void Empty()
- {
- Truncate(0);
-
- wxASSERT_MSG( empty(), _T("string not empty after call to Empty()?") );
- }
+ void Empty() { clear(); }
// empty the string and free memory
- void Clear()
- {
- wxString tmp(wxEmptyString);
- swap(tmp);
- }
+ void Clear() { clear(); }
// contents test
// Is an ascii value
// data access (all indexes are 0 based)
// read access
wxUniChar at(size_t n) const
- { return *(begin() + n); } // FIXME-UTF8: optimize?
+ { return wxStringOperations::DecodeChar(m_impl.begin() + PosToImpl(n)); }
wxUniChar GetChar(size_t n) const
{ return at(n); }
// read/write access
wxUniCharRef at(size_t n)
- { return *(begin() + n); } // FIXME-UTF8: optimize?
+ { return *GetIterForNthChar(n); }
wxUniCharRef GetWritableChar(size_t n)
{ return at(n); }
// write access
- void SetChar(size_t n, wxUniChar ch)
+ void SetChar(size_t n, wxUniChar ch)
{ at(n) = ch; }
// get last character
wxUniChar Last() const
- {
- wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
-
- return at(length() - 1);
- }
+ {
+ wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
+ return *rbegin();
+ }
// get writable last character
wxUniCharRef Last()
- {
- wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
- return at(length() - 1);
- }
+ {
+ wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
+ return *rbegin();
+ }
/*
Note that we we must define all of the overloads below to avoid
{ return at(n); }
#endif // size_t != unsigned int
- // explicit conversion to C string (use this with printf()!)
+
+ /*
+ Overview of wxString conversions, implicit and explicit:
+
+ - wxString has a std::[w]string-like c_str() method, however it does
+ not return a C-style string directly but instead returns wxCStrData
+ helper object which is convertible to either "char *" narrow string
+ or "wchar_t *" wide string. Usually the correct conversion will be
+ applied by the compiler automatically but if this doesn't happen you
+ need to explicitly choose one using wxCStrData::AsChar() or AsWChar()
+ methods or another wxString conversion function.
+
+ - One of the places where the conversion does *NOT* happen correctly is
+ when c_str() is passed to a vararg function such as printf() so you
+ must *NOT* use c_str() with them. Either use wxPrintf() (all wx
+ functions do handle c_str() correctly, even if they appear to be
+ vararg (but they're not, really)) or add an explicit AsChar() or, if
+ compatibility with previous wxWidgets versions is important, add a
+ cast to "const char *".
+
+ - In non-STL mode only, wxString is also implicitly convertible to
+ wxCStrData. The same warning as above applies.
+
+ - c_str() is polymorphic as it can be converted to either narrow or
+ wide string. If you explicitly need one or the other, choose to use
+ mb_str() (for narrow) or wc_str() (for wide) instead. Notice that
+ these functions can return either the pointer to string directly (if
+ this is what the string uses internally) or a temporary buffer
+ containing the string and convertible to it. Again, conversion will
+ usually be done automatically by the compiler but beware of the
+ vararg functions: you need an explicit cast when using them.
+
+ - There are also non-const versions of mb_str() and wc_str() called
+ char_str() and wchar_str(). They are only meant to be used with
+ non-const-correct functions and they always return buffers.
+
+ - Finally wx_str() returns whatever string representation is used by
+ wxString internally. It may be either a narrow or wide string
+ depending on wxWidgets build mode but it will always be a raw pointer
+ (and not a buffer).
+ */
+
+ // explicit conversion to wxCStrData
wxCStrData c_str() const { return wxCStrData(this); }
wxCStrData data() const { return c_str(); }
- // implicit conversion to C string
+ // implicit conversion to wxCStrData
operator wxCStrData() const { return c_str(); }
+
+ // the first two operators conflict with operators for conversion to
+ // std::string and they must be disabled in STL build; the next one only
+ // makes sense if conversions to char* are also defined and not defining it
+ // in STL build also helps us to get more clear error messages for the code
+ // which relies on implicit conversion to char* in STL build
+#if !wxUSE_STL
operator const char*() const { return c_str(); }
operator const wchar_t*() const { return c_str(); }
+ // implicit conversion to untyped pointer for compatibility with previous
+ // wxWidgets versions: this is the same as conversion to const char * so it
+ // may fail!
+ operator const void*() const { return c_str(); }
+#endif // wxUSE_STL
+
// identical to c_str(), for MFC compatibility
const wxCStrData GetData() const { return c_str(); }
// conversion to *non-const* multibyte or widestring buffer; modifying
// returned buffer won't affect the string, these methods are only useful
// for passing values to const-incorrect functions
- wxWritableCharBuffer char_str() const { return mb_str(); }
+ wxWritableCharBuffer char_str(const wxMBConv& conv = wxConvLibc) const
+ { return mb_str(conv); }
wxWritableWCharBuffer wchar_str() const { return wc_str(); }
+ // conversion to the buffer of the given type T (= char or wchar_t) and
+ // also optionally return the buffer length
+ //
+ // this is mostly/only useful for the template functions
+ //
+ // FIXME-VC6: the second argument only exists for VC6 which doesn't support
+ // explicit template function selection, do not use it unless
+ // you must support VC6!
+ template <typename T>
+ wxCharTypeBuffer<T> tchar_str(size_t *len = NULL,
+ T * WXUNUSED(dummy) = NULL) const
+ {
+#if wxUSE_UNICODE
+ // we need a helper dispatcher depending on type
+ return wxPrivate::wxStringAsBufHelper<T>::Get(*this, len);
+#else // ANSI
+ // T can only be char in ANSI build
+ if ( len )
+ *len = length();
+
+ return wxCharTypeBuffer<T>::CreateNonOwned(wx_str());
+#endif // Unicode build kind
+ }
+
// 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
+ static wxString FromAscii(const char *ascii, size_t len);
+ static wxString FromAscii(const char *ascii);
+ static wxString FromAscii(char ascii);
const wxCharBuffer ToAscii() const;
#else // ANSI
static wxString FromAscii(const char *ascii) { return wxString( ascii ); }
- static wxString FromAscii(const char ascii) { return wxString( ascii ); }
+ static wxString FromAscii(const char *ascii, size_t len)
+ { return wxString( ascii, len ); }
+ static wxString FromAscii(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
- // 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(const wxMBConv& conv = wxConvLibc) const;
+ // also provide unsigned char overloads as signed/unsigned doesn't matter
+ // for 7 bit ASCII characters
+ static wxString FromAscii(const unsigned char *ascii)
+ { return FromAscii((const char *)ascii); }
+ static wxString FromAscii(const unsigned char *ascii, size_t len)
+ { return FromAscii((const char *)ascii, len); }
- const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
+ // conversion to/from UTF-8:
+#if wxUSE_UNICODE_UTF8
+ static wxString FromUTF8Unchecked(const char *utf8)
+ {
+ if ( !utf8 )
+ return wxEmptyString;
-#if wxUSE_UNICODE_WCHAR
- const wxChar* wc_str() const { return wx_str(); }
-#elif wxUSE_UNICODE_UTF8
+ wxASSERT( wxStringOperations::IsValidUtf8String(utf8) );
+ return FromImpl(wxStringImpl(utf8));
+ }
+ static wxString FromUTF8Unchecked(const char *utf8, size_t len)
+ {
+ if ( !utf8 )
+ return wxEmptyString;
+ if ( len == npos )
+ return FromUTF8Unchecked(utf8);
+
+ wxASSERT( wxStringOperations::IsValidUtf8String(utf8, len) );
+ return FromImpl(wxStringImpl(utf8, len));
+ }
+
+ static wxString FromUTF8(const char *utf8)
+ {
+ if ( !utf8 || !wxStringOperations::IsValidUtf8String(utf8) )
+ return "";
+
+ return FromImpl(wxStringImpl(utf8));
+ }
+ static wxString FromUTF8(const char *utf8, size_t len)
+ {
+ if ( len == npos )
+ return FromUTF8(utf8);
+
+ if ( !utf8 || !wxStringOperations::IsValidUtf8String(utf8, len) )
+ return "";
+
+ return FromImpl(wxStringImpl(utf8, len));
+ }
+
+ const char* utf8_str() const { return wx_str(); }
+ const char* ToUTF8() const { return wx_str(); }
+
+ // this function exists in UTF-8 build only and returns the length of the
+ // internal UTF-8 representation
+ size_t utf8_length() const { return m_impl.length(); }
+#elif wxUSE_UNICODE_WCHAR
+ static wxString FromUTF8(const char *utf8, size_t len = npos)
+ { return wxString(utf8, wxMBConvUTF8(), len); }
+ static wxString FromUTF8Unchecked(const char *utf8, size_t len = npos)
+ {
+ const wxString s(utf8, wxMBConvUTF8(), len);
+ wxASSERT_MSG( !utf8 || !*utf8 || !s.empty(),
+ "string must be valid UTF-8" );
+ return s;
+ }
+ const wxCharBuffer utf8_str() const { return mb_str(wxMBConvUTF8()); }
+ const wxCharBuffer ToUTF8() const { return utf8_str(); }
+#else // ANSI
+ static wxString FromUTF8(const char *utf8)
+ { return wxString(wxMBConvUTF8().cMB2WC(utf8)); }
+ static wxString FromUTF8(const char *utf8, size_t len)
+ {
+ size_t wlen;
+ wxWCharBuffer buf(wxMBConvUTF8().cMB2WC(utf8, len == npos ? wxNO_LEN : len, &wlen));
+ return wxString(buf.data(), wlen);
+ }
+ static wxString FromUTF8Unchecked(const char *utf8, size_t len = npos)
+ {
+ size_t wlen;
+ wxWCharBuffer buf(wxMBConvUTF8().cMB2WC(utf8,
+ len == npos ? wxNO_LEN : len,
+ &wlen));
+ wxASSERT_MSG( !utf8 || !*utf8 || wlen,
+ "string must be valid UTF-8" );
+
+ return wxString(buf.data(), wlen);
+ }
+ const wxCharBuffer utf8_str() const
+ { return wxMBConvUTF8().cWC2MB(wc_str()); }
+ const wxCharBuffer ToUTF8() const { return utf8_str(); }
+#endif
+
+ // functions for storing binary data in wxString:
+#if wxUSE_UNICODE
+ static wxString From8BitData(const char *data, size_t len)
+ { return wxString(data, wxConvISO8859_1, len); }
+ // version for NUL-terminated data:
+ static wxString From8BitData(const char *data)
+ { return wxString(data, wxConvISO8859_1); }
+ const wxCharBuffer To8BitData() const { return mb_str(wxConvISO8859_1); }
+#else // ANSI
+ static wxString From8BitData(const char *data, size_t len)
+ { return wxString(data, len); }
+ // version for NUL-terminated data:
+ static wxString From8BitData(const char *data)
+ { return wxString(data); }
+ const char *To8BitData() const { return c_str(); }
+#endif // Unicode/ANSI
+
+ // 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
+ // 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
+
+#if wxUSE_UTF8_LOCALE_ONLY
+ const char* mb_str() const { return wx_str(); }
+ const wxCharBuffer mb_str(const wxMBConv& conv) const;
+#else
+ const wxCharBuffer mb_str(const wxMBConv& conv = wxConvLibc) const;
+#endif
+
+ const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
+
+#if wxUSE_UNICODE_WCHAR
+ const wchar_t* wc_str() const { return wx_str(); }
+#elif wxUSE_UNICODE_UTF8
const wxWCharBuffer wc_str() const;
#endif
// for compatibility with !wxUSE_UNICODE version
const wxChar* mb_str() const { return wx_str(); }
// for compatibility with wxUSE_UNICODE version
- const wxChar* mb_str(const wxMBConv& WXUNUSED(conv)) const { return wx_str(); }
+ const char* mb_str(const wxMBConv& WXUNUSED(conv)) const { return wx_str(); }
const wxWX2MBbuf mbc_str() const { return mb_str(); }
#if wxUSE_WCHAR_T
const wxWCharBuffer wc_str(const wxMBConv& conv = wxConvLibc) const;
#endif // wxUSE_WCHAR_T
-#ifdef __WXOSX__
- const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLocal ) ); }
-#else
- const wxChar* fn_str() const { return c_str(); }
-#endif
+ const wxCharBuffer fn_str() const { return wxConvFile.cWC2WX( wc_str( wxConvLibc ) ); }
#endif // Unicode/ANSI
+#if wxUSE_UNICODE_UTF8
+ const wxWCharBuffer t_str() const { return wc_str(); }
+#elif wxUSE_UNICODE_WCHAR
+ const wchar_t* t_str() const { return wx_str(); }
+#else
+ const char* t_str() const { return wx_str(); }
+#endif
+
+
// overloaded assignment
// from another wxString
wxString& operator=(const wxString& stringSrc)
- { m_impl = stringSrc.m_impl; return *this; }
+ {
+ if ( this != &stringSrc )
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl = stringSrc.m_impl;
+ }
+
+ return *this;
+ }
+
wxString& operator=(const wxCStrData& cstr)
{ return *this = cstr.AsString(); }
// from a character
wxString& operator=(wxUniChar ch)
- { m_impl = EncodeChar(ch); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+#if wxUSE_UNICODE_UTF8
+ if ( !ch.IsAscii() )
+ m_impl = wxStringOperations::EncodeChar(ch);
+ else
+#endif // wxUSE_UNICODE_UTF8
+ m_impl = (wxStringCharType)ch;
+ return *this;
+ }
+
wxString& operator=(wxUniCharRef ch)
{ return operator=((wxUniChar)ch); }
wxString& operator=(char ch)
// so we need to compensate in that case
#if wxUSE_STL_BASED_WXSTRING
wxString& operator=(const char *psz)
- { if (psz) m_impl = ImplStr(psz); else Clear(); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ if ( psz )
+ m_impl = ImplStr(psz);
+ else
+ clear();
+
+ return *this;
+ }
+
wxString& operator=(const wchar_t *pwz)
- { if (pwz) m_impl = ImplStr(pwz); else Clear(); return *this; }
-#else
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ if ( pwz )
+ m_impl = ImplStr(pwz);
+ else
+ clear();
+
+ return *this;
+ }
+#else // !wxUSE_STL_BASED_WXSTRING
wxString& operator=(const char *psz)
- { m_impl = ImplStr(psz); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl = ImplStr(psz);
+
+ return *this;
+ }
+
wxString& operator=(const wchar_t *pwz)
- { m_impl = ImplStr(pwz); return *this; }
-#endif
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl = ImplStr(pwz);
+
+ return *this;
+ }
+#endif // wxUSE_STL_BASED_WXSTRING/!wxUSE_STL_BASED_WXSTRING
+
wxString& operator=(const unsigned char *psz)
{ return operator=((const char*)psz); }
// string += buffer (i.e. from wxGetString)
wxString& operator<<(const wxWCharBuffer& s)
{ return operator<<((const wchar_t *)s); }
- wxString& operator+=(const wxWCharBuffer& s)
- { return operator<<((const wchar_t *)s); }
-
wxString& operator<<(const wxCharBuffer& s)
{ return operator<<((const char *)s); }
- wxString& operator+=(const wxCharBuffer& s)
- { return operator<<((const char *)s); }
// string += C string
wxString& Append(const wxString& s)
append(s);
return *this;
}
- wxString& Append(const wxCStrData& psz)
- { append(psz); return *this; }
wxString& Append(const char* psz)
{ append(psz); return *this; }
wxString& Append(const wchar_t* pwz)
{ append(pwz); return *this; }
+ wxString& Append(const wxCStrData& psz)
+ { append(psz); return *this; }
+ wxString& Append(const wxCharBuffer& psz)
+ { append(psz); return *this; }
+ wxString& Append(const wxWCharBuffer& psz)
+ { append(psz); return *this; }
+ wxString& Append(const char* psz, size_t nLen)
+ { append(psz, nLen); return *this; }
+ wxString& Append(const wchar_t* pwz, size_t nLen)
+ { append(pwz, nLen); return *this; }
+ wxString& Append(const wxCStrData& psz, size_t nLen)
+ { append(psz, nLen); return *this; }
+ wxString& Append(const wxCharBuffer& psz, size_t nLen)
+ { append(psz, nLen); return *this; }
+ wxString& Append(const wxWCharBuffer& psz, size_t nLen)
+ { append(psz, nLen); return *this; }
// append count copies of given character
wxString& Append(wxUniChar ch, size_t count = 1u)
{ append(count, ch); return *this; }
{ append(count, ch); return *this; }
wxString& Append(wchar_t ch, size_t count = 1u)
{ append(count, ch); return *this; }
- wxString& Append(const char* psz, size_t nLen)
- { append(psz, nLen); return *this; }
- wxString& Append(const wchar_t* pwz, size_t nLen)
- { append(pwz, nLen); return *this; }
// prepend a string, return the string itself
wxString& Prepend(const wxString& str)
const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("u");
return (*this) << Format(fmt , ull);
}
-#endif
+#endif // wxLongLong_t && !wxLongLongIsLong
// insert a float into string
wxString& operator<<(float f)
{ return (*this) << Format(_T("%f"), f); }
{ return compare(pwz); }
int Cmp(const wxString& s) const
{ return compare(s); }
+ int Cmp(const wxCStrData& s) const
+ { return compare(s); }
+ int Cmp(const wxCharBuffer& s) const
+ { return compare(s); }
+ int Cmp(const wxWCharBuffer& s) const
+ { return compare(s); }
// same as Cmp() but not case-sensitive
int CmpNoCase(const wxString& s) const;
- int CmpNoCase(const char *psz) const
- { return CmpNoCase(wxString(psz)); }
- int CmpNoCase(const wchar_t *pwz) const
- { return CmpNoCase(wxString(pwz)); }
+
// test for the string equality, either considering case or not
// (if compareWithCase then the case matters)
bool IsSameAs(const wxString& str, bool compareWithCase = true) const
- { return (compareWithCase ? Cmp(str) : CmpNoCase(str)) == 0; }
+ {
+#if !wxUSE_UNICODE_UTF8
+ // in UTF-8 build, length() is O(n) and doing this would be _slower_
+ if ( length() != str.length() )
+ return false;
+#endif
+ return (compareWithCase ? Cmp(str) : CmpNoCase(str)) == 0;
+ }
bool IsSameAs(const char *str, bool compareWithCase = true) const
{ return (compareWithCase ? Cmp(str) : CmpNoCase(str)) == 0; }
bool IsSameAs(const wchar_t *str, bool compareWithCase = true) const
{ return (compareWithCase ? Cmp(str) : CmpNoCase(str)) == 0; }
+
+ bool IsSameAs(const wxCStrData& str, bool compareWithCase = true) const
+ { return IsSameAs(str.AsString(), compareWithCase); }
+ bool IsSameAs(const wxCharBuffer& str, bool compareWithCase = true) const
+ { return IsSameAs(str.data(), compareWithCase); }
+ bool IsSameAs(const wxWCharBuffer& str, bool compareWithCase = true) const
+ { return IsSameAs(str.data(), compareWithCase); }
// comparison with a single character: returns true if equal
- bool IsSameAs(wxUniChar c, bool compareWithCase = true) const
- {
- return (length() == 1) && (compareWithCase ? GetChar(0u) == c
- : wxToupper(GetChar(0u)) == wxToupper(c));
- }
+ bool IsSameAs(wxUniChar c, bool compareWithCase = true) const;
// FIXME-UTF8: remove these overloads
bool IsSameAs(wxUniCharRef c, bool compareWithCase = true) const
{ return IsSameAs(wxUniChar(c), compareWithCase); }
// check if the string starts with the given 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;
+ bool StartsWith(const wxString& prefix, wxString *rest = NULL) const;
// check if the string ends with the given suffix and return the
// beginning of the string before the suffix in the provided pointer if
// it is not NULL; otherwise return false
- bool EndsWith(const wxChar *suffix, wxString *rest = NULL) const;
+ bool EndsWith(const wxString& suffix, 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 occurance of ch
+ // get all characters before the first occurrence of ch
// (returns the whole string if ch not found)
wxString BeforeFirst(wxUniChar ch) const;
- // get all characters before the last occurence of ch
+ // get all characters before the last occurrence of ch
// (returns empty string if ch not found)
wxString BeforeLast(wxUniChar ch) const;
- // get all characters after the first occurence of ch
+ // get all characters after the first occurrence of ch
// (returns empty string if ch not found)
wxString AfterFirst(wxUniChar ch) const;
- // get all characters after the last occurence of ch
+ // get all characters after the last occurrence of ch
// (returns the whole string if ch not found)
wxString AfterLast(wxUniChar ch) const;
// convert to upper case in place, return the string itself
wxString& MakeUpper();
// convert to upper case, return the copy of the string
- // Here's something to remember: BC++ doesn't like returns in inlines.
- wxString Upper() const ;
+ wxString Upper() const { return wxString(*this).MakeUpper(); }
// convert to lower case in place, return the string itself
wxString& MakeLower();
// convert to lower case, return the copy of the string
- wxString Lower() const ;
+ wxString Lower() const { return wxString(*this).MakeLower(); }
+ // convert the first character to the upper case and the rest to the
+ // lower one, return the modified string itself
+ wxString& MakeCapitalized();
+ // convert the first character to the upper case and the rest to the
+ // lower one, return the copy of the string
+ wxString Capitalize() const { return wxString(*this).MakeCapitalized(); }
// trimming/padding whitespace (either side) and truncating
// remove spaces from left or from right (default) side
int Find(wchar_t ch, bool bFromEnd = false) const
{ return Find(wxUniChar(ch), bFromEnd); }
// searching (return starting index, or -1 if not found)
- // FIXME-UTF8: keep wxString overload only
int Find(const wxString& sub) const // like strstr
{
size_type idx = find(sub);
return (idx == npos) ? wxNOT_FOUND : (int)idx;
}
- // replace first (or all of bReplaceAll) occurences of substring with
+ int Find(const wxCStrData& sub) const
+ { return Find(sub.AsString()); }
+ int Find(const wxCharBuffer& sub) const
+ { return Find(sub.data()); }
+ int Find(const wxWCharBuffer& sub) const
+ { return Find(sub.data()); }
+
+ // replace first (or all of bReplaceAll) occurrences of substring with
// another string, returns the number of replacements made
size_t Replace(const wxString& strOld,
const wxString& strNew,
// formatted input/output
// as sprintf(), returns the number of characters written or < 0 on error
// (take 'this' into account in attribute parameter count)
- // int Printf(const wxChar *pszFormat, ...);
- WX_DEFINE_VARARG_FUNC(int, Printf, DoPrintf)
+ // int Printf(const wxString& format, ...);
+ WX_DEFINE_VARARG_FUNC(int, Printf, 1, (const wxFormatString&),
+ DoPrintfWchar, DoPrintfUtf8)
+#ifdef __WATCOMC__
+ // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
+ WX_VARARG_WATCOM_WORKAROUND(int, Printf, 1, (const wxString&),
+ (wxFormatString(f1)));
+ WX_VARARG_WATCOM_WORKAROUND(int, Printf, 1, (const wxCStrData&),
+ (wxFormatString(f1)));
+ WX_VARARG_WATCOM_WORKAROUND(int, Printf, 1, (const char*),
+ (wxFormatString(f1)));
+ WX_VARARG_WATCOM_WORKAROUND(int, Printf, 1, (const wchar_t*),
+ (wxFormatString(f1)));
+#endif
#endif // !wxNEEDS_WXSTRING_PRINTF_MIXIN
// as vprintf(), returns the number of characters written or < 0 on error
int PrintfV(const wxString& format, va_list argptr);
#ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN
// returns the string containing the result of Printf() to it
- // static wxString Format(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_1;
- WX_DEFINE_VARARG_FUNC(static wxString, Format, DoFormat)
+ // static wxString Format(const wxString& format, ...) ATTRIBUTE_PRINTF_1;
+ WX_DEFINE_VARARG_FUNC(static wxString, Format, 1, (const wxFormatString&),
+ DoFormatWchar, DoFormatUtf8)
+#ifdef __WATCOMC__
+ // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
+ WX_VARARG_WATCOM_WORKAROUND(static wxString, Format, 1, (const wxString&),
+ (wxFormatString(f1)));
+ WX_VARARG_WATCOM_WORKAROUND(static wxString, Format, 1, (const wxCStrData&),
+ (wxFormatString(f1)));
+ WX_VARARG_WATCOM_WORKAROUND(static wxString, Format, 1, (const char*),
+ (wxFormatString(f1)));
+ WX_VARARG_WATCOM_WORKAROUND(static wxString, Format, 1, (const wchar_t*),
+ (wxFormatString(f1)));
+#endif
#endif
// the same as above, but takes a va_list
static wxString FormatV(const wxString& format, 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
- bool Alloc(size_t nLen) { reserve(nLen); /*return capacity() >= nLen;*/ return true; }
+ bool Alloc(size_t nLen) { reserve(nLen); return capacity() >= nLen; }
// minimize the string's memory
// only works if the data of this string is not shared
bool Shrink();
//
// get writable buffer of at least nLen bytes. Unget() *must* be called
// a.s.a.p. to put string back in a reasonable state!
- wxDEPRECATED( wxChar *GetWriteBuf(size_t nLen) );
+ wxDEPRECATED( wxStringCharType *GetWriteBuf(size_t nLen) );
// call this immediately after GetWriteBuf() has been used
wxDEPRECATED( void UngetWriteBuf() );
wxDEPRECATED( void UngetWriteBuf(size_t nLen) );
#ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN
// use Printf()
// (take 'this' into account in attribute parameter count)
- // int sprintf(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_2;
- WX_DEFINE_VARARG_FUNC(int, sprintf, DoPrintf)
+ // int sprintf(const wxString& format, ...) ATTRIBUTE_PRINTF_2;
+ WX_DEFINE_VARARG_FUNC(int, sprintf, 1, (const wxFormatString&),
+ DoPrintfWchar, DoPrintfUtf8)
+#ifdef __WATCOMC__
+ // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
+ WX_VARARG_WATCOM_WORKAROUND(int, sprintf, 1, (const wxString&),
+ (wxFormatString(f1)));
+ WX_VARARG_WATCOM_WORKAROUND(int, sprintf, 1, (const wxCStrData&),
+ (wxFormatString(f1)));
+ WX_VARARG_WATCOM_WORKAROUND(int, sprintf, 1, (const char*),
+ (wxFormatString(f1)));
+ WX_VARARG_WATCOM_WORKAROUND(int, sprintf, 1, (const wchar_t*),
+ (wxFormatString(f1)));
+#endif
#endif // wxNEEDS_WXSTRING_PRINTF_MIXIN
// use Cmp()
- inline int CompareTo(const wxChar* psz, caseCompare cmp = exact) const
+ int CompareTo(const wxChar* psz, caseCompare cmp = exact) const
{ return cmp == exact ? Cmp(psz) : CmpNoCase(psz); }
// use length()
int First( char ch ) const { return Find(ch); }
int First( unsigned char ch ) const { return Find(ch); }
int First( wchar_t 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( wxUniChar ch ) const { return Find(ch, true); }
bool Contains(const wxString& str) const { return Find(str) != wxNOT_FOUND; }
// take nLen chars starting at nPos
wxString(const wxString& str, size_t nPos, size_t nLen)
- : m_impl(str.m_impl, nPos, nLen) { }
+ { assign(str, nPos, nLen); }
// take all characters from first to last
wxString(const_iterator first, const_iterator last)
- : m_impl(first, last) { }
+ : m_impl(first.impl(), last.impl()) { }
#if WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
// the 2 overloads below are for compatibility with the existing code using
// pointers instead of iterators
}
// and this one is needed to compile code adding offsets to c_str() result
wxString(const wxCStrData& first, const wxCStrData& last)
- : m_impl(CreateConstIterator(first), CreateConstIterator(last))
+ : m_impl(CreateConstIterator(first).impl(),
+ CreateConstIterator(last).impl())
{
wxASSERT_MSG( first.m_str == last.m_str,
_T("pointers must be into the same string") );
// append elements str[pos], ..., str[pos+n]
wxString& append(const wxString& str, size_t pos, size_t n)
{
- size_t from, len;
- str.PosLenToImpl(pos, n, &from, &len);
- m_impl.append(str.m_impl, from, len);
- return *this;
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+ size_t from, len;
+ str.PosLenToImpl(pos, n, &from, &len);
+ m_impl.append(str.m_impl, from, len);
+ return *this;
}
// append a string
wxString& append(const wxString& str)
- { m_impl.append(str.m_impl); return *this; }
- wxString& append(const wxCStrData& str)
- { m_impl.append(str.AsString().m_impl); return *this; }
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(str.length());
+
+ m_impl.append(str.m_impl);
+ return *this;
+ }
+
// append first n (or all if n == npos) characters of sz
wxString& append(const char *sz)
- { m_impl.append(ImplStr(sz)); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl.append(ImplStr(sz));
+ return *this;
+ }
+
wxString& append(const wchar_t *sz)
- { m_impl.append(ImplStr(sz)); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl.append(ImplStr(sz));
+ return *this;
+ }
+
wxString& append(const char *sz, size_t n)
{
- SubstrBufFromMB str(ImplStr(sz, n));
- m_impl.append(str.data, str.len);
- return *this;
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ SubstrBufFromMB str(ImplStr(sz, n));
+ m_impl.append(str.data, str.len);
+ return *this;
}
wxString& append(const wchar_t *sz, size_t n)
{
- SubstrBufFromWC str(ImplStr(sz, n));
- m_impl.append(str.data, str.len);
- return *this;
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+ SubstrBufFromWC str(ImplStr(sz, n));
+ m_impl.append(str.data, str.len);
+ return *this;
}
+
+ wxString& append(const wxCStrData& str)
+ { return append(str.AsString()); }
+ wxString& append(const wxCharBuffer& str)
+ { return append(str.data()); }
+ wxString& append(const wxWCharBuffer& str)
+ { return append(str.data()); }
+ wxString& append(const wxCStrData& str, size_t n)
+ { return append(str.AsString(), 0, n); }
+ wxString& append(const wxCharBuffer& str, size_t n)
+ { return append(str.data(), n); }
+ wxString& append(const wxWCharBuffer& str, size_t n)
+ { return append(str.data(), n); }
+
// append n copies of ch
wxString& append(size_t n, wxUniChar ch)
{
#if wxUSE_UNICODE_UTF8
- if ( !ch.IsAscii() )
- m_impl.append(EncodeNChars(n, ch));
- else
+ if ( !ch.IsAscii() )
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl.append(wxStringOperations::EncodeNChars(n, ch));
+ }
+ else // ASCII
#endif
- m_impl.append(n, (wxStringCharType)ch);
- return *this;
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+ m_impl.append(n, (wxStringCharType)ch);
+ }
+
+ return *this;
}
+
+ wxString& append(size_t n, wxUniCharRef ch)
+ { return append(n, wxUniChar(ch)); }
+ wxString& append(size_t n, char ch)
+ { return append(n, wxUniChar(ch)); }
+ wxString& append(size_t n, unsigned char ch)
+ { return append(n, wxUniChar(ch)); }
+ wxString& append(size_t n, wchar_t ch)
+ { return append(n, wxUniChar(ch)); }
+
// append from first to last
wxString& append(const_iterator first, const_iterator last)
- { m_impl.append(first, last); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl.append(first.impl(), last.impl());
+ return *this;
+ }
#if WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
wxString& append(const char *first, const char *last)
{ return append(first, last - first); }
// same as `this_string = str'
wxString& assign(const wxString& str)
- { m_impl = str.m_impl; return *this; }
+ {
+ wxSTRING_SET_CACHED_LENGTH(str.length());
+
+ m_impl = str.m_impl;
+
+ return *this;
+ }
+
wxString& assign(const wxString& str, size_t len)
{
- m_impl.assign(str.m_impl, 0, str.LenToImpl(len));
- return *this;
+ wxSTRING_SET_CACHED_LENGTH(len);
+
+ m_impl.assign(str.m_impl, 0, str.LenToImpl(len));
+
+ return *this;
}
+
// same as ` = str[pos..pos + n]
wxString& assign(const wxString& str, size_t pos, size_t n)
{
- size_t from, len;
- str.PosLenToImpl(pos, n, &from, &len);
- m_impl.assign(str.m_impl, from, len);
- return *this;
+ size_t from, len;
+ str.PosLenToImpl(pos, n, &from, &len);
+ m_impl.assign(str.m_impl, from, len);
+
+ // it's important to call this after PosLenToImpl() above in case str is
+ // the same string as this one
+ wxSTRING_SET_CACHED_LENGTH(n);
+
+ return *this;
}
+
// same as `= first n (or all if n == npos) characters of sz'
wxString& assign(const char *sz)
- { m_impl.assign(ImplStr(sz)); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.assign(ImplStr(sz));
+
+ return *this;
+ }
+
wxString& assign(const wchar_t *sz)
- { m_impl.assign(ImplStr(sz)); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.assign(ImplStr(sz));
+
+ return *this;
+ }
+
wxString& assign(const char *sz, size_t n)
{
- SubstrBufFromMB str(ImplStr(sz, n));
- m_impl.assign(str.data, str.len);
- return *this;
+ wxSTRING_SET_CACHED_LENGTH(n);
+
+ SubstrBufFromMB str(ImplStr(sz, n));
+ m_impl.assign(str.data, str.len);
+
+ return *this;
}
+
wxString& assign(const wchar_t *sz, size_t n)
{
- SubstrBufFromWC str(ImplStr(sz, n));
- m_impl.assign(str.data, str.len);
- return *this;
+ wxSTRING_SET_CACHED_LENGTH(n);
+
+ SubstrBufFromWC str(ImplStr(sz, n));
+ m_impl.assign(str.data, str.len);
+
+ return *this;
}
+
+ wxString& assign(const wxCStrData& str)
+ { return assign(str.AsString()); }
+ wxString& assign(const wxCharBuffer& str)
+ { return assign(str.data()); }
+ wxString& assign(const wxWCharBuffer& str)
+ { return assign(str.data()); }
+ wxString& assign(const wxCStrData& str, size_t len)
+ { return assign(str.AsString(), len); }
+ wxString& assign(const wxCharBuffer& str, size_t len)
+ { return assign(str.data(), len); }
+ wxString& assign(const wxWCharBuffer& str, size_t len)
+ { return assign(str.data(), len); }
+
// same as `= n copies of ch'
wxString& assign(size_t n, wxUniChar ch)
{
+ wxSTRING_SET_CACHED_LENGTH(n);
+
#if wxUSE_UNICODE_UTF8
- if ( !ch.IsAscii() )
- m_impl.assign(EncodeNChars(n, ch));
- else
+ if ( !ch.IsAscii() )
+ m_impl.assign(wxStringOperations::EncodeNChars(n, ch));
+ else
#endif
- m_impl.assign(n, (wxStringCharType)ch);
- return *this;
+ m_impl.assign(n, (wxStringCharType)ch);
+
+ return *this;
}
wxString& assign(size_t n, wxUniCharRef ch)
// assign from first to last
wxString& assign(const_iterator first, const_iterator last)
- { m_impl.assign(first, last); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.assign(first.impl(), last.impl());
+
+ return *this;
+ }
#if WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
wxString& assign(const char *first, const char *last)
{ return assign(first, last - first); }
// string comparison
int compare(const wxString& str) const;
+ int compare(const char* sz) const;
+ int compare(const wchar_t* sz) const;
+ int compare(const wxCStrData& str) const
+ { return compare(str.AsString()); }
+ int compare(const wxCharBuffer& str) const
+ { return compare(str.data()); }
+ int compare(const wxWCharBuffer& str) const
+ { return compare(str.data()); }
// comparison with a substring
int compare(size_t nStart, size_t nLen, const wxString& str) const;
// comparison of 2 substrings
int compare(size_t nStart, size_t nLen,
const wxString& str, size_t nStart2, size_t nLen2) const;
- // just like strcmp()
- int compare(const char* sz) const;
- int compare(const wchar_t* sz) const;
// substring comparison with first nCount characters of sz
int compare(size_t nStart, size_t nLen,
const char* sz, size_t nCount = npos) const;
// insert another string
wxString& insert(size_t nPos, const wxString& str)
- { insert(begin() + nPos, str.begin(), str.end()); return *this; }
+ { insert(GetIterForNthChar(nPos), str.begin(), str.end()); return *this; }
// insert n chars of str starting at nStart (in str)
wxString& insert(size_t nPos, const wxString& str, size_t nStart, size_t n)
{
- size_t from, len;
- str.PosLenToImpl(nStart, n, &from, &len);
- m_impl.insert(PosToImpl(nPos), str.m_impl, from, len);
- return *this;
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+ size_t from, len;
+ str.PosLenToImpl(nStart, n, &from, &len);
+ m_impl.insert(PosToImpl(nPos), str.m_impl, from, len);
+
+ return *this;
}
+
// insert first n (or all if n == npos) characters of sz
wxString& insert(size_t nPos, const char *sz)
- { m_impl.insert(PosToImpl(nPos), ImplStr(sz)); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.insert(PosToImpl(nPos), ImplStr(sz));
+
+ return *this;
+ }
+
wxString& insert(size_t nPos, const wchar_t *sz)
- { m_impl.insert(PosToImpl(nPos), ImplStr(sz)); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.insert(PosToImpl(nPos), ImplStr(sz)); return *this;
+ }
+
wxString& insert(size_t nPos, const char *sz, size_t n)
{
- SubstrBufFromMB str(ImplStr(sz, n));
- m_impl.insert(PosToImpl(nPos), str.data, str.len);
- return *this;
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+ SubstrBufFromMB str(ImplStr(sz, n));
+ m_impl.insert(PosToImpl(nPos), str.data, str.len);
+
+ return *this;
}
+
wxString& insert(size_t nPos, const wchar_t *sz, size_t n)
{
- SubstrBufFromWC str(ImplStr(sz, n));
- m_impl.insert(PosToImpl(nPos), str.data, str.len);
- return *this;
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
+ SubstrBufFromWC str(ImplStr(sz, n));
+ m_impl.insert(PosToImpl(nPos), str.data, str.len);
+
+ return *this;
}
+
// insert n copies of ch
wxString& insert(size_t nPos, size_t n, wxUniChar ch)
{
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
#if wxUSE_UNICODE_UTF8
- if ( !ch.IsAscii() )
- m_impl.insert(PosToImpl(nPos), EncodeNChars(n, ch));
- else
+ if ( !ch.IsAscii() )
+ m_impl.insert(PosToImpl(nPos), wxStringOperations::EncodeNChars(n, ch));
+ else
#endif
- m_impl.insert(PosToImpl(nPos), n, (wxStringCharType)ch);
- return *this;
+ m_impl.insert(PosToImpl(nPos), n, (wxStringCharType)ch);
+ return *this;
}
+
iterator insert(iterator it, wxUniChar ch)
{
+ wxSTRING_UPDATE_CACHED_LENGTH(1);
+
#if wxUSE_UNICODE_UTF8
- if ( !ch.IsAscii() )
- {
- size_t pos = IterToImplPos(it);
- m_impl.insert(pos, EncodeChar(ch));
- return iterator(this, m_impl.begin() + pos);
- }
- else
+ if ( !ch.IsAscii() )
+ {
+ size_t pos = IterToImplPos(it);
+ m_impl.insert(pos, wxStringOperations::EncodeChar(ch));
+ return iterator(this, m_impl.begin() + pos);
+ }
+ else
#endif
- return iterator(this, m_impl.insert(it, (wxStringCharType)ch));
+ return iterator(this, m_impl.insert(it.impl(), (wxStringCharType)ch));
}
+
void insert(iterator it, const_iterator first, const_iterator last)
- { m_impl.insert(it, first, last); }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.insert(it.impl(), first.impl(), last.impl());
+ }
+
#if WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER
void insert(iterator it, const char *first, const char *last)
{ insert(it - begin(), first, last - first); }
void insert(iterator it, size_type n, wxUniChar ch)
{
+ wxSTRING_UPDATE_CACHED_LENGTH(n);
+
#if wxUSE_UNICODE_UTF8
- if ( !ch.IsAscii() )
- m_impl.insert(IterToImplPos(it), EncodeNChars(n, ch));
- else
+ if ( !ch.IsAscii() )
+ m_impl.insert(IterToImplPos(it), wxStringOperations::EncodeNChars(n, ch));
+ else
#endif
- m_impl.insert(it, n, (wxStringCharType)ch);
+ m_impl.insert(it.impl(), n, (wxStringCharType)ch);
}
// delete characters from nStart to nStart + nLen
wxString& erase(size_type pos = 0, size_type n = npos)
{
- size_t from, len;
- PosLenToImpl(pos, n, &from, &len);
- m_impl.erase(from, len);
- return *this;
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(pos, n, &from, &len);
+ m_impl.erase(from, len);
+
+ return *this;
}
+
// delete characters from first up to last
iterator erase(iterator first, iterator last)
- { return iterator(this, m_impl.erase(first, last)); }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ return iterator(this, m_impl.erase(first.impl(), last.impl()));
+ }
+
iterator erase(iterator first)
- { return iterator(this, m_impl.erase(first)); }
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(-1);
+
+ return iterator(this, m_impl.erase(first.impl()));
+ }
#ifdef wxSTRING_BASE_HASNT_CLEAR
void clear() { erase(); }
#else
- void clear() { m_impl.clear(); }
+ void clear()
+ {
+ wxSTRING_SET_CACHED_LENGTH(0);
+
+ m_impl.clear();
+ }
#endif
// replaces the substring of length nLen starting at nStart
wxString& replace(size_t nStart, size_t nLen, const char* sz)
{
- size_t from, len;
- PosLenToImpl(nStart, nLen, &from, &len);
- m_impl.replace(from, len, ImplStr(sz));
- return *this;
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
+ m_impl.replace(from, len, ImplStr(sz));
+
+ return *this;
}
+
wxString& replace(size_t nStart, size_t nLen, const wchar_t* sz)
{
- size_t from, len;
- PosLenToImpl(nStart, nLen, &from, &len);
- m_impl.replace(from, len, ImplStr(sz));
- return *this;
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
+ m_impl.replace(from, len, ImplStr(sz));
+
+ return *this;
}
+
// replaces the substring of length nLen starting at nStart
wxString& replace(size_t nStart, size_t nLen, const wxString& str)
{
- size_t from, len;
- PosLenToImpl(nStart, nLen, &from, &len);
- m_impl.replace(from, len, str.m_impl);
- return *this;
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
+ m_impl.replace(from, len, str.m_impl);
+
+ return *this;
}
+
// replaces the substring with nCount copies of ch
wxString& replace(size_t nStart, size_t nLen, size_t nCount, wxUniChar ch)
{
- size_t from, len;
- PosLenToImpl(nStart, nLen, &from, &len);
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
#if wxUSE_UNICODE_UTF8
- if ( !ch.IsAscii() )
- m_impl.replace(from, len, EncodeNChars(nCount, ch));
- else
+ if ( !ch.IsAscii() )
+ m_impl.replace(from, len, wxStringOperations::EncodeNChars(nCount, ch));
+ else
#endif
- m_impl.replace(from, len, nCount, (wxStringCharType)ch);
- return *this;
+ m_impl.replace(from, len, nCount, (wxStringCharType)ch);
+
+ return *this;
}
+
// replaces a substring with another substring
wxString& replace(size_t nStart, size_t nLen,
const wxString& str, size_t nStart2, size_t nLen2)
{
- size_t from, len;
- PosLenToImpl(nStart, nLen, &from, &len);
+ wxSTRING_INVALIDATE_CACHE();
- size_t from2, len2;
- str.PosLenToImpl(nStart2, nLen2, &from2, &len2);
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
- m_impl.replace(from, len, str.m_impl, from2, len2);
- return *this;
+ size_t from2, len2;
+ str.PosLenToImpl(nStart2, nLen2, &from2, &len2);
+
+ m_impl.replace(from, len, str.m_impl, from2, len2);
+
+ return *this;
}
+
// replaces the substring with first nCount chars of sz
wxString& replace(size_t nStart, size_t nLen,
const char* sz, size_t nCount)
{
- size_t from, len;
- PosLenToImpl(nStart, nLen, &from, &len);
+ wxSTRING_INVALIDATE_CACHE();
- SubstrBufFromMB str(ImplStr(sz, nCount));
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
- m_impl.replace(from, len, str.data, str.len);
- return *this;
+ SubstrBufFromMB str(ImplStr(sz, nCount));
+
+ m_impl.replace(from, len, str.data, str.len);
+
+ return *this;
}
+
wxString& replace(size_t nStart, size_t nLen,
const wchar_t* sz, size_t nCount)
{
- size_t from, len;
- PosLenToImpl(nStart, nLen, &from, &len);
+ wxSTRING_INVALIDATE_CACHE();
- SubstrBufFromWC str(ImplStr(sz, nCount));
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
- m_impl.replace(from, len, str.data, str.len);
- return *this;
+ SubstrBufFromWC str(ImplStr(sz, nCount));
+
+ m_impl.replace(from, len, str.data, str.len);
+
+ return *this;
}
+
wxString& replace(size_t nStart, size_t nLen,
const wxString& s, size_t nCount)
{
- size_t from, len;
- PosLenToImpl(nStart, nLen, &from, &len);
- m_impl.replace(from, len, s.m_impl.c_str(), s.LenToImpl(nCount));
- return *this;
+ wxSTRING_INVALIDATE_CACHE();
+
+ size_t from, len;
+ PosLenToImpl(nStart, nLen, &from, &len);
+ m_impl.replace(from, len, s.m_impl.c_str(), s.LenToImpl(nCount));
+
+ return *this;
}
wxString& replace(iterator first, iterator last, const char* s)
- { m_impl.replace(first, last, ImplStr(s)); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.replace(first.impl(), last.impl(), ImplStr(s));
+
+ return *this;
+ }
+
wxString& replace(iterator first, iterator last, const wchar_t* s)
- { m_impl.replace(first, last, ImplStr(s)); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.replace(first.impl(), last.impl(), ImplStr(s));
+
+ return *this;
+ }
+
wxString& replace(iterator first, iterator last, const char* s, size_type n)
{
- SubstrBufFromMB str(ImplStr(s, n));
- m_impl.replace(first, last, str.data, str.len);
- return *this;
+ wxSTRING_INVALIDATE_CACHE();
+
+ SubstrBufFromMB str(ImplStr(s, n));
+ m_impl.replace(first.impl(), last.impl(), str.data, str.len);
+
+ return *this;
}
+
wxString& replace(iterator first, iterator last, const wchar_t* s, size_type n)
{
- SubstrBufFromWC str(ImplStr(s, n));
- m_impl.replace(first, last, str.data, str.len);
- return *this;
+ wxSTRING_INVALIDATE_CACHE();
+
+ SubstrBufFromWC str(ImplStr(s, n));
+ m_impl.replace(first.impl(), last.impl(), str.data, str.len);
+
+ return *this;
}
+
wxString& replace(iterator first, iterator last, const wxString& s)
- { m_impl.replace(first, last, s.m_impl); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.replace(first.impl(), last.impl(), s.m_impl);
+
+ return *this;
+ }
+
wxString& replace(iterator first, iterator last, size_type n, wxUniChar ch)
{
+ wxSTRING_INVALIDATE_CACHE();
+
#if wxUSE_UNICODE_UTF8
- if ( !ch.IsAscii() )
- m_impl.replace(first, last, EncodeNChars(n, ch));
- else
+ if ( !ch.IsAscii() )
+ m_impl.replace(first.impl(), last.impl(),
+ wxStringOperations::EncodeNChars(n, ch));
+ else
#endif
- m_impl.replace(first, last, n, (wxStringCharType)ch);
- return *this;
+ m_impl.replace(first.impl(), last.impl(), n, (wxStringCharType)ch);
+
+ return *this;
+ }
+
+ wxString& replace(iterator first, iterator last,
+ const_iterator first1, const_iterator last1)
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.replace(first.impl(), last.impl(), first1.impl(), last1.impl());
+
+ return *this;
}
- wxString& replace(iterator first, iterator last,
- const_iterator first1, const_iterator last1)
- { m_impl.replace(first, last, first1, last1); return *this; }
+
wxString& replace(iterator first, iterator last,
const char *first1, const char *last1)
{ replace(first, last, first1, last1 - first1); return *this; }
// swap two strings
void swap(wxString& str)
- { m_impl.swap(str.m_impl); }
+ {
+#if wxUSE_STRING_POS_CACHE
+ // we modify not only this string but also the other one directly so we
+ // need to invalidate cache for both of them (we could also try to
+ // exchange their cache entries but it seems unlikely to be worth it)
+ InvalidateCache();
+ str.InvalidateCache();
+#endif // wxUSE_STRING_POS_CACHE
+
+ m_impl.swap(str.m_impl);
+ }
// find a substring
size_t find(const wxString& str, size_t nStart = 0) const
SubstrBufFromWC str(ImplStr(sz, n));
return PosFromImpl(m_impl.find(str.data, PosToImpl(nStart), str.len));
}
-
- // find the first occurence of character ch after nStart
+ size_t find(const wxCharBuffer& s, size_t nStart = 0, size_t n = npos) const
+ { return find(s.data(), nStart, n); }
+ size_t find(const wxWCharBuffer& s, size_t nStart = 0, size_t n = npos) const
+ { return find(s.data(), nStart, n); }
+ size_t find(const wxCStrData& s, size_t nStart = 0, size_t n = npos) const
+ { return find(s.AsWChar(), nStart, n); }
+
+ // find the first occurrence of character ch after nStart
size_t find(wxUniChar ch, size_t nStart = 0) const
- { return PosFromImpl(m_impl.find(EncodeChar(ch), PosToImpl(nStart))); }
+ {
+#if wxUSE_UNICODE_UTF8
+ if ( !ch.IsAscii() )
+ return PosFromImpl(m_impl.find(wxStringOperations::EncodeChar(ch),
+ PosToImpl(nStart)));
+ else
+#endif
+ return PosFromImpl(m_impl.find((wxStringCharType)ch,
+ PosToImpl(nStart)));
+
+ }
size_t find(wxUniCharRef ch, size_t nStart = 0) const
{ return find(wxUniChar(ch), nStart); }
size_t find(char ch, size_t nStart = 0) const
SubstrBufFromWC str(ImplStr(sz, n));
return PosFromImpl(m_impl.rfind(str.data, PosToImpl(nStart), str.len));
}
+ size_t rfind(const wxCharBuffer& s, size_t nStart = npos, size_t n = npos) const
+ { return rfind(s.data(), nStart, n); }
+ size_t rfind(const wxWCharBuffer& s, size_t nStart = npos, size_t n = npos) const
+ { return rfind(s.data(), nStart, n); }
+ size_t rfind(const wxCStrData& s, size_t nStart = npos, size_t n = npos) const
+ { return rfind(s.AsWChar(), nStart, n); }
// as find, but from the end
size_t rfind(wxUniChar ch, size_t nStart = npos) const
- { return PosFromImpl(m_impl.rfind(EncodeChar(ch), PosToImpl(nStart))); }
+ {
+#if wxUSE_UNICODE_UTF8
+ if ( !ch.IsAscii() )
+ return PosFromImpl(m_impl.rfind(wxStringOperations::EncodeChar(ch),
+ PosToImpl(nStart)));
+ else
+#endif
+ return PosFromImpl(m_impl.rfind((wxStringCharType)ch,
+ PosToImpl(nStart)));
+ }
size_t rfind(wxUniCharRef ch, size_t nStart = npos) const
{ return rfind(wxUniChar(ch), nStart); }
size_t rfind(char ch, size_t nStart = npos) const
size_t rfind(wchar_t ch, size_t nStart = npos) const
{ return rfind(wxUniChar(ch), nStart); }
- // find first/last occurence of any character (not) in the set:
+ // find first/last occurrence of any character (not) in the set:
#if wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
// FIXME-UTF8: this is not entirely correct, because it doesn't work if
// sizeof(wchar_t)==2 and surrogates are present in the string;
// as strpbrk() but starts at nStart, returns npos if not found
size_t find_first_of(const wxString& str, size_t nStart = 0) const
#if wxUSE_UNICODE // FIXME-UTF8: temporary
- { return find_first_of(str.mb_str().data(), nStart); }
+ { return find_first_of(str.wc_str(), nStart); }
#else
- { return find_first_of((const wxChar*)str.c_str(), nStart); }
+ { return find_first_of(str.mb_str(), nStart); }
#endif
// same as above
size_t find_first_of(const char* sz, size_t nStart = 0) const;
// 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
#if wxUSE_UNICODE // FIXME-UTF8: temporary
- { return find_last_of(str.mb_str().data(), nStart); }
+ { return find_last_of(str.wc_str(), nStart); }
#else
- { return find_last_of((const wxChar*)str.c_str(), nStart); }
+ { return find_last_of(str.mb_str(), nStart); }
#endif
// same as above
size_t find_last_of (const char* sz, size_t nStart = npos) const;
size_t find_last_of(wxUniChar c, size_t nStart = npos) const
{ return rfind(c, nStart); }
- // find first/last occurence of any character not in the set
+ // find first/last occurrence of any character not in the set
// as strspn() (starting from nStart), returns npos on failure
size_t find_first_not_of(const wxString& str, size_t nStart = 0) const
#if wxUSE_UNICODE // FIXME-UTF8: temporary
- { return find_first_not_of(str.mb_str().data(), nStart); }
+ { return find_first_not_of(str.wc_str(), nStart); }
#else
- { return find_first_not_of((const wxChar*)str.c_str(), nStart); }
+ { return find_first_not_of(str.mb_str(), nStart); }
#endif
// same as above
size_t find_first_not_of(const char* sz, size_t nStart = 0) const;
// as strcspn()
size_t find_last_not_of(const wxString& str, size_t nStart = npos) const
#if wxUSE_UNICODE // FIXME-UTF8: temporary
- { return find_last_not_of(str.mb_str().data(), nStart); }
+ { return find_last_not_of(str.wc_str(), nStart); }
#else
- { return find_last_not_of((const wxChar*)str.c_str(), nStart); }
+ { return find_last_not_of(str.mb_str(), nStart); }
#endif
// same as above
size_t find_last_not_of(const char* sz, size_t nStart = npos) const;
size_t find_last_not_of(wchar_t ch, size_t nStart = npos) const
{ return find_last_not_of(wxUniChar(ch), nStart); }
+ // and additional overloads for the versions taking strings:
+ size_t find_first_of(const wxCStrData& sz, size_t nStart = 0) const
+ { return find_first_of(sz.AsString(), nStart); }
+ size_t find_first_of(const wxCharBuffer& sz, size_t nStart = 0) const
+ { return find_first_of(sz.data(), nStart); }
+ size_t find_first_of(const wxWCharBuffer& sz, size_t nStart = 0) const
+ { return find_first_of(sz.data(), nStart); }
+ size_t find_first_of(const wxCStrData& sz, size_t nStart, size_t n) const
+ { return find_first_of(sz.AsWChar(), nStart, n); }
+ size_t find_first_of(const wxCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_first_of(sz.data(), nStart, n); }
+ size_t find_first_of(const wxWCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_first_of(sz.data(), nStart, n); }
+
+ size_t find_last_of(const wxCStrData& sz, size_t nStart = 0) const
+ { return find_last_of(sz.AsString(), nStart); }
+ size_t find_last_of(const wxCharBuffer& sz, size_t nStart = 0) const
+ { return find_last_of(sz.data(), nStart); }
+ size_t find_last_of(const wxWCharBuffer& sz, size_t nStart = 0) const
+ { return find_last_of(sz.data(), nStart); }
+ size_t find_last_of(const wxCStrData& sz, size_t nStart, size_t n) const
+ { return find_last_of(sz.AsWChar(), nStart, n); }
+ size_t find_last_of(const wxCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_last_of(sz.data(), nStart, n); }
+ size_t find_last_of(const wxWCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_last_of(sz.data(), nStart, n); }
+
+ size_t find_first_not_of(const wxCStrData& sz, size_t nStart = 0) const
+ { return find_first_not_of(sz.AsString(), nStart); }
+ size_t find_first_not_of(const wxCharBuffer& sz, size_t nStart = 0) const
+ { return find_first_not_of(sz.data(), nStart); }
+ size_t find_first_not_of(const wxWCharBuffer& sz, size_t nStart = 0) const
+ { return find_first_not_of(sz.data(), nStart); }
+ size_t find_first_not_of(const wxCStrData& sz, size_t nStart, size_t n) const
+ { return find_first_not_of(sz.AsWChar(), nStart, n); }
+ size_t find_first_not_of(const wxCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_first_not_of(sz.data(), nStart, n); }
+ size_t find_first_not_of(const wxWCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_first_not_of(sz.data(), nStart, n); }
+
+ size_t find_last_not_of(const wxCStrData& sz, size_t nStart = 0) const
+ { return find_last_not_of(sz.AsString(), nStart); }
+ size_t find_last_not_of(const wxCharBuffer& sz, size_t nStart = 0) const
+ { return find_last_not_of(sz.data(), nStart); }
+ size_t find_last_not_of(const wxWCharBuffer& sz, size_t nStart = 0) const
+ { return find_last_not_of(sz.data(), nStart); }
+ size_t find_last_not_of(const wxCStrData& sz, size_t nStart, size_t n) const
+ { return find_last_not_of(sz.AsWChar(), nStart, n); }
+ size_t find_last_not_of(const wxCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_last_not_of(sz.data(), nStart, n); }
+ size_t find_last_not_of(const wxWCharBuffer& sz, size_t nStart, size_t n) const
+ { return find_last_not_of(sz.data(), nStart, n); }
+
// string += string
wxString& operator+=(const wxString& s)
- { m_impl += s.m_impl; return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl += s.m_impl;
+ return *this;
+ }
// string += C string
wxString& operator+=(const char *psz)
- { m_impl += ImplStr(psz); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl += ImplStr(psz);
+ return *this;
+ }
wxString& operator+=(const wchar_t *pwz)
- { m_impl += ImplStr(pwz); return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl += ImplStr(pwz);
+ return *this;
+ }
wxString& operator+=(const wxCStrData& s)
- { m_impl += s.AsString().m_impl; return *this; }
+ {
+ wxSTRING_INVALIDATE_CACHED_LENGTH();
+
+ m_impl += s.AsString().m_impl;
+ return *this;
+ }
+ wxString& operator+=(const wxCharBuffer& s)
+ { return operator+=(s.data()); }
+ wxString& operator+=(const wxWCharBuffer& s)
+ { return operator+=(s.data()); }
// string += char
wxString& operator+=(wxUniChar ch)
- { m_impl += EncodeChar(ch); return *this; }
+ {
+ wxSTRING_UPDATE_CACHED_LENGTH(1);
+
+#if wxUSE_UNICODE_UTF8
+ if ( !ch.IsAscii() )
+ m_impl += wxStringOperations::EncodeChar(ch);
+ else
+#endif
+ m_impl += (wxStringCharType)ch;
+ return *this;
+ }
wxString& operator+=(wxUniCharRef ch) { return *this += wxUniChar(ch); }
wxString& operator+=(int ch) { return *this += wxUniChar(ch); }
wxString& operator+=(char ch) { return *this += wxUniChar(ch); }
wxString& operator+=(wchar_t ch) { return *this += wxUniChar(ch); }
private:
-#if !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
+#if !wxUSE_STL_BASED_WXSTRING
// helpers for wxStringBuffer and wxStringBufferLength
wxStringCharType *DoGetWriteBuf(size_t nLen)
- { return m_impl.DoGetWriteBuf(nLen); }
+ {
+ return m_impl.DoGetWriteBuf(nLen);
+ }
+
void DoUngetWriteBuf()
- { m_impl.DoUngetWriteBuf(); }
+ {
+ wxSTRING_INVALIDATE_CACHE();
+
+ m_impl.DoUngetWriteBuf();
+ }
+
void DoUngetWriteBuf(size_t nLen)
- { m_impl.DoUngetWriteBuf(nLen); }
+ {
+ wxSTRING_SET_CACHED_LENGTH(nLen);
- friend class WXDLLIMPEXP_BASE wxStringBuffer;
- friend class WXDLLIMPEXP_BASE wxStringBufferLength;
-#endif // !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
+ m_impl.DoUngetWriteBuf(nLen);
+ }
+#endif // !wxUSE_STL_BASED_WXSTRING
#ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN
- int DoPrintf(const wxChar *format, ...) ATTRIBUTE_PRINTF_2;
- static wxString DoFormat(const wxChar *format, ...) ATTRIBUTE_PRINTF_1;
+ #if !wxUSE_UTF8_LOCALE_ONLY
+ int DoPrintfWchar(const wxChar *format, ...);
+ static wxString DoFormatWchar(const wxChar *format, ...);
+ #endif
+ #if wxUSE_UNICODE_UTF8
+ int DoPrintfUtf8(const char *format, ...);
+ static wxString DoFormatUtf8(const char *format, ...);
+ #endif
#endif
#if !wxUSE_STL_BASED_WXSTRING
T *m_buf;
};
-#if wxUSE_UNICODE
+#if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
ConvertedBuffer<char> m_convertedToChar;
#endif
#if !wxUSE_UNICODE_WCHAR
ConvertedBuffer<wchar_t> m_convertedToWChar;
#endif
- friend class WXDLLIMPEXP_BASE wxCStrData;
+
+#if wxUSE_UNICODE_UTF8
+ // FIXME-UTF8: (try to) move this elsewhere (TLS) or solve differently
+ // assigning to character pointer to by wxString::interator may
+ // change the underlying wxStringImpl iterator, so we have to
+ // keep track of all iterators and update them as necessary:
+ struct wxStringIteratorNodeHead
+ {
+ wxStringIteratorNodeHead() : ptr(NULL) {}
+ wxStringIteratorNode *ptr;
+
+ // copying is disallowed as it would result in more than one pointer into
+ // the same linked list
+ DECLARE_NO_COPY_CLASS(wxStringIteratorNodeHead)
+ };
+
+ wxStringIteratorNodeHead m_iterators;
+
+ friend class WXDLLIMPEXP_FWD_BASE wxStringIteratorNode;
+ friend class WXDLLIMPEXP_FWD_BASE wxUniCharRef;
+#endif // wxUSE_UNICODE_UTF8
+
+ friend class WXDLLIMPEXP_FWD_BASE wxCStrData;
+ friend class wxStringInternalBuffer;
+ friend class wxStringInternalBufferLength;
};
#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
// string iterator operators that satisfy STL Random Access Iterator
// requirements:
-inline wxString::iterator operator+(int n, wxString::iterator i)
+inline wxString::iterator operator+(ptrdiff_t n, wxString::iterator i)
{ return i + n; }
-inline wxString::iterator operator+(size_t n, wxString::iterator i)
+inline wxString::const_iterator operator+(ptrdiff_t n, wxString::const_iterator i)
{ return i + n; }
-inline wxString::const_iterator operator+(int n, wxString::const_iterator i)
+inline wxString::reverse_iterator operator+(ptrdiff_t n, wxString::reverse_iterator i)
{ return i + n; }
-inline wxString::const_iterator operator+(size_t n, wxString::const_iterator i)
- { return i + n; }
-inline wxString::reverse_iterator operator+(int n, wxString::reverse_iterator i)
- { return i + n; }
-inline wxString::reverse_iterator operator+(size_t n, wxString::reverse_iterator i)
- { return i + n; }
-inline wxString::const_reverse_iterator operator+(int n, wxString::const_reverse_iterator i)
- { return i + n; }
-inline wxString::const_reverse_iterator operator+(size_t n, wxString::const_reverse_iterator i)
+inline wxString::const_reverse_iterator operator+(ptrdiff_t n, wxString::const_reverse_iterator i)
{ return i + n; }
// notice that even though for many compilers the friend declarations above are
{ return wxUniChar(ch) + string; }
-#if wxUSE_STL_BASED_WXSTRING
- // return an empty wxString (not very useful with wxUSE_STL == 1)
- inline const wxString wxGetEmptyString() { return wxString(); }
-#else // !wxUSE_STL_BASED_WXSTRING
- // return an empty wxString (more efficient than wxString() here)
- inline const wxString& wxGetEmptyString()
+#define wxGetEmptyString() wxString()
+
+// ----------------------------------------------------------------------------
+// helper functions which couldn't be defined inline
+// ----------------------------------------------------------------------------
+
+namespace wxPrivate
+{
+
+#if wxUSE_UNICODE_WCHAR
+
+template <>
+struct wxStringAsBufHelper<char>
+{
+ static wxCharBuffer Get(const wxString& s, size_t *len)
{
- return *(wxString *)&wxEmptyString;
+ wxCharBuffer buf(s.mb_str());
+ if ( len )
+ *len = buf ? strlen(buf) : 0;
+ return buf;
}
-#endif // wxUSE_STL_BASED_WXSTRING/!wxUSE_STL_BASED_WXSTRING
+};
+
+template <>
+struct wxStringAsBufHelper<wchar_t>
+{
+ static wxWCharBuffer Get(const wxString& s, size_t *len)
+ {
+ if ( len )
+ *len = s.length();
+ return wxWCharBuffer::CreateNonOwned(s.wx_str());
+ }
+};
+
+#elif wxUSE_UNICODE_UTF8
+
+template <>
+struct wxStringAsBufHelper<char>
+{
+ static wxCharBuffer Get(const wxString& s, size_t *len)
+ {
+ if ( len )
+ *len = s.utf8_length();
+ return wxCharBuffer::CreateNonOwned(s.wx_str());
+ }
+};
+
+template <>
+struct wxStringAsBufHelper<wchar_t>
+{
+ static wxWCharBuffer Get(const wxString& s, size_t *len)
+ {
+ wxWCharBuffer wbuf(s.wc_str());
+ if ( len )
+ *len = wxWcslen(wbuf);
+ return wbuf;
+ }
+};
+
+#endif // Unicode build kind
+
+} // namespace wxPrivate
// ----------------------------------------------------------------------------
// wxStringBuffer: a tiny class allowing to get a writable pointer into string
// ----------------------------------------------------------------------------
-#if wxUSE_STL_BASED_WXSTRING || wxUSE_UNICODE_UTF8
-
-class WXDLLIMPEXP_BASE wxStringBuffer
+#if !wxUSE_STL_BASED_WXSTRING
+// string buffer for direct access to string data in their native
+// representation:
+class wxStringInternalBuffer
{
public:
- wxStringBuffer(wxString& str, size_t lenWanted = 1024)
- : m_str(str), m_buf(lenWanted)
- { }
+ typedef wxStringCharType CharType;
+
+ wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024)
+ : m_str(str), m_buf(NULL)
+ { m_buf = m_str.DoGetWriteBuf(lenWanted); }
- ~wxStringBuffer() { m_str.assign(m_buf.data(), wxStrlen(m_buf.data())); }
+ ~wxStringInternalBuffer() { m_str.DoUngetWriteBuf(); }
- operator wxChar*() { return m_buf.data(); }
+ operator wxStringCharType*() const { return m_buf; }
private:
- wxString& m_str;
-#if wxUSE_UNICODE
- wxWCharBuffer m_buf;
-#else
- wxCharBuffer m_buf;
-#endif
+ wxString& m_str;
+ wxStringCharType *m_buf;
- DECLARE_NO_COPY_CLASS(wxStringBuffer)
+ DECLARE_NO_COPY_CLASS(wxStringInternalBuffer)
};
-class WXDLLIMPEXP_BASE wxStringBufferLength
+class wxStringInternalBufferLength
{
public:
- wxStringBufferLength(wxString& str, size_t lenWanted = 1024)
- : m_str(str), m_buf(lenWanted), m_len(0), m_lenSet(false)
- { }
+ typedef wxStringCharType CharType;
+
+ wxStringInternalBufferLength(wxString& str, size_t lenWanted = 1024)
+ : m_str(str), m_buf(NULL), m_len(0), m_lenSet(false)
+ {
+ m_buf = m_str.DoGetWriteBuf(lenWanted);
+ wxASSERT(m_buf != NULL);
+ }
- ~wxStringBufferLength()
+ ~wxStringInternalBufferLength()
{
wxASSERT(m_lenSet);
- m_str.assign(m_buf.data(), m_len);
+ m_str.DoUngetWriteBuf(m_len);
}
- operator wxChar*() { return m_buf.data(); }
+ operator wxStringCharType*() const { return m_buf; }
void SetLength(size_t length) { m_len = length; m_lenSet = true; }
private:
- wxString& m_str;
-#if wxUSE_UNICODE
- wxWCharBuffer m_buf;
-#else
- wxCharBuffer m_buf;
-#endif
- size_t m_len;
- bool m_lenSet;
+ wxString& m_str;
+ wxStringCharType *m_buf;
+ size_t m_len;
+ bool m_lenSet;
- DECLARE_NO_COPY_CLASS(wxStringBufferLength)
+ DECLARE_NO_COPY_CLASS(wxStringInternalBufferLength)
};
-#else // if !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
+#endif // !wxUSE_STL_BASED_WXSTRING
-class WXDLLIMPEXP_BASE wxStringBuffer
+template<typename T>
+class wxStringTypeBufferBase
{
public:
- wxStringBuffer(wxString& str, size_t lenWanted = 1024)
- : m_str(str), m_buf(NULL)
- { m_buf = m_str.DoGetWriteBuf(lenWanted); }
+ typedef T CharType;
- ~wxStringBuffer() { m_str.DoUngetWriteBuf(); }
+ wxStringTypeBufferBase(wxString& str, size_t lenWanted = 1024)
+ : m_str(str), m_buf(lenWanted)
+ {
+ // for compatibility with old wxStringBuffer which provided direct
+ // access to wxString internal buffer, initialize ourselves with the
+ // string initial contents
+
+ // FIXME-VC6: remove the ugly (CharType *)NULL and use normal
+ // tchar_str<CharType>
+ size_t len;
+ const wxCharTypeBuffer<CharType> buf(str.tchar_str(&len, (CharType *)NULL));
+ if ( buf )
+ {
+ if ( len > lenWanted )
+ {
+ // in this case there is not enough space for terminating NUL,
+ // ensure that we still put it there
+ m_buf.data()[lenWanted] = 0;
+ len = lenWanted - 1;
+ }
+
+ memcpy(m_buf.data(), buf, (len + 1)*sizeof(CharType));
+ }
+ //else: conversion failed, this can happen when trying to get Unicode
+ // string contents into a char string
+ }
- operator wxChar*() const { return m_buf; }
+ operator CharType*() { return m_buf.data(); }
-private:
+protected:
wxString& m_str;
- wxChar *m_buf;
+ wxCharTypeBuffer<CharType> m_buf;
+};
+
+template<typename T>
+class wxStringTypeBufferLengthBase : public wxStringTypeBufferBase<T>
+{
+public:
+ wxStringTypeBufferLengthBase(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferBase<T>(str, lenWanted),
+ m_len(0),
+ m_lenSet(false)
+ { }
+
+ ~wxStringTypeBufferLengthBase()
+ {
+ wxASSERT_MSG( this->m_lenSet, "forgot to call SetLength()" );
+ }
- DECLARE_NO_COPY_CLASS(wxStringBuffer)
+ void SetLength(size_t length) { m_len = length; m_lenSet = true; }
+
+protected:
+ size_t m_len;
+ bool m_lenSet;
};
-class WXDLLIMPEXP_BASE wxStringBufferLength
+template<typename T>
+class wxStringTypeBuffer : public wxStringTypeBufferBase<T>
{
public:
- wxStringBufferLength(wxString& str, size_t lenWanted = 1024)
- : m_str(str), m_buf(NULL), m_len(0), m_lenSet(false)
+ wxStringTypeBuffer(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferBase<T>(str, lenWanted)
+ { }
+
+ ~wxStringTypeBuffer()
{
- m_buf = m_str.DoGetWriteBuf(lenWanted);
- wxASSERT(m_buf != NULL);
+ this->m_str.assign(this->m_buf.data());
}
- ~wxStringBufferLength()
+ DECLARE_NO_COPY_CLASS(wxStringTypeBuffer)
+};
+
+template<typename T>
+class wxStringTypeBufferLength : public wxStringTypeBufferLengthBase<T>
+{
+public:
+ wxStringTypeBufferLength(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferLengthBase<T>(str, lenWanted)
+ { }
+
+ ~wxStringTypeBufferLength()
{
- wxASSERT(m_lenSet);
- m_str.DoUngetWriteBuf(m_len);
+ this->m_str.assign(this->m_buf.data(), this->m_len);
}
- operator wxChar*() const { return m_buf; }
- void SetLength(size_t length) { m_len = length; m_lenSet = true; }
+ DECLARE_NO_COPY_CLASS(wxStringTypeBufferLength)
+};
-private:
- wxString& m_str;
- wxChar *m_buf;
- size_t m_len;
- bool m_lenSet;
+#if wxUSE_STL_BASED_WXSTRING
+
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferBase<wxStringCharType> )
+
+class wxStringInternalBuffer : public wxStringTypeBufferBase<wxStringCharType>
+{
+public:
+ wxStringInternalBuffer(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferBase<wxStringCharType>(str, lenWanted) {}
+ ~wxStringInternalBuffer()
+ { m_str.m_impl.assign(m_buf.data()); }
+
+ DECLARE_NO_COPY_CLASS(wxStringInternalBuffer)
+};
+
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE(
+ wxStringTypeBufferLengthBase<wxStringCharType> )
- DECLARE_NO_COPY_CLASS(wxStringBufferLength)
+class wxStringInternalBufferLength
+ : public wxStringTypeBufferLengthBase<wxStringCharType>
+{
+public:
+ wxStringInternalBufferLength(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferLengthBase<wxStringCharType>(str, lenWanted) {}
+
+ ~wxStringInternalBufferLength()
+ {
+ m_str.m_impl.assign(m_buf.data(), m_len);
+ }
+
+ DECLARE_NO_COPY_CLASS(wxStringInternalBufferLength)
};
+#endif // wxUSE_STL_BASED_WXSTRING
+
+
+#if wxUSE_STL_BASED_WXSTRING || wxUSE_UNICODE_UTF8
+typedef wxStringTypeBuffer<wxChar> wxStringBuffer;
+typedef wxStringTypeBufferLength<wxChar> wxStringBufferLength;
+#else // if !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
+typedef wxStringInternalBuffer wxStringBuffer;
+typedef wxStringInternalBufferLength wxStringBufferLength;
#endif // !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
+#if wxUSE_UNICODE_UTF8
+typedef wxStringInternalBuffer wxUTF8StringBuffer;
+typedef wxStringInternalBufferLength wxUTF8StringBufferLength;
+#elif wxUSE_UNICODE_WCHAR
+
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferBase<char> )
+
+// Note about inlined dtors in the classes below: this is done not for
+// performance reasons but just to avoid linking errors in the MSVC DLL build
+// under Windows: if a class has non-inline methods it must be declared as
+// being DLL-exported but, due to an extremely interesting feature of MSVC 7
+// and later, any template class which is used as a base of a DLL-exported
+// class is implicitly made DLL-exported too, as explained at the bottom of
+// http://msdn.microsoft.com/en-us/library/twa2aw10.aspx (just to confirm: yes,
+// _inheriting_ from a class can change whether it is being exported from DLL)
+//
+// But this results in link errors because the base template class is not DLL-
+// exported, whether it is declared with WXDLLIMPEXP_BASE or not, because it
+// does have only inline functions. So the simplest fix is to just make all the
+// functions of these classes inline too.
+
+class wxUTF8StringBuffer : public wxStringTypeBufferBase<char>
+{
+public:
+ wxUTF8StringBuffer(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferBase<char>(str, lenWanted) {}
+ ~wxUTF8StringBuffer()
+ {
+ wxMBConvStrictUTF8 conv;
+ size_t wlen = conv.ToWChar(NULL, 0, m_buf);
+ wxCHECK_RET( wlen != wxCONV_FAILED, "invalid UTF-8 data in string buffer?" );
+
+ wxStringInternalBuffer wbuf(m_str, wlen);
+ conv.ToWChar(wbuf, wlen, m_buf);
+ }
+
+ DECLARE_NO_COPY_CLASS(wxUTF8StringBuffer)
+};
+
+WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( wxStringTypeBufferLengthBase<char> )
+
+class wxUTF8StringBufferLength : public wxStringTypeBufferLengthBase<char>
+{
+public:
+ wxUTF8StringBufferLength(wxString& str, size_t lenWanted = 1024)
+ : wxStringTypeBufferLengthBase<char>(str, lenWanted) {}
+ ~wxUTF8StringBufferLength()
+ {
+ wxCHECK_RET(m_lenSet, "length not set");
+
+ wxMBConvStrictUTF8 conv;
+ size_t wlen = conv.ToWChar(NULL, 0, m_buf, m_len);
+ wxCHECK_RET( wlen != wxCONV_FAILED, "invalid UTF-8 data in string buffer?" );
+
+ wxStringInternalBufferLength wbuf(m_str, wlen);
+ conv.ToWChar(wbuf, wlen, m_buf, m_len);
+ wbuf.SetLength(wlen);
+ }
+
+ DECLARE_NO_COPY_CLASS(wxUTF8StringBufferLength)
+};
+#endif // wxUSE_UNICODE_UTF8/wxUSE_UNICODE_WCHAR
+
+
// ---------------------------------------------------------------------------
// wxString comparison functions: operator versions are always case sensitive
// ---------------------------------------------------------------------------
-#define wxCMP_WXCHAR_STRING(p, s, op) s.Cmp(p) op 0
+#define wxCMP_WXCHAR_STRING(p, s, op) 0 op s.Cmp(p)
wxDEFINE_ALL_COMPARISONS(const wxChar *, const wxString&, wxCMP_WXCHAR_STRING)
#undef wxCMP_WXCHAR_STRING
-// note that there is an optimization in operator==() and !=(): we (quickly)
-// checks the strings length first, before comparing their data
inline bool operator==(const wxString& s1, const wxString& s2)
- { return (s1.Len() == s2.Len()) && (s1.Cmp(s2) == 0); }
+ { return s1.IsSameAs(s2); }
inline bool operator!=(const wxString& s1, const wxString& s2)
- { return (s1.Len() != s2.Len()) || (s1.Cmp(s2) != 0); }
+ { return !s1.IsSameAs(s2); }
inline bool operator< (const wxString& s1, const wxString& s2)
{ return s1.Cmp(s2) < 0; }
inline bool operator> (const wxString& s1, const wxString& s2)
inline bool operator>=(const wxString& s1, const wxString& s2)
{ return s1.Cmp(s2) >= 0; }
-#if wxUSE_UNICODE
+inline bool operator==(const wxString& s1, const wxCStrData& s2)
+ { return s1 == s2.AsString(); }
+inline bool operator==(const wxCStrData& s1, const wxString& s2)
+ { return s1.AsString() == s2; }
+inline bool operator!=(const wxString& s1, const wxCStrData& s2)
+ { return s1 != s2.AsString(); }
+inline bool operator!=(const wxCStrData& s1, const wxString& s2)
+ { return s1.AsString() != s2; }
+
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 (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 (s1.Cmp((const char *)s2) != 0); }
inline bool operator!=(const wxCharBuffer& s1, const wxString& s2)
{ return (s2.Cmp((const char *)s1) != 0); }
-#endif // wxUSE_UNICODE/!wxUSE_UNICODE
-#if wxUSE_UNICODE
inline wxString operator+(const wxString& string, const wxWCharBuffer& buf)
{ return string + (const wchar_t *)buf; }
inline wxString operator+(const wxWCharBuffer& buf, const wxString& string)
{ return (const wchar_t *)buf + string; }
-#else // !wxUSE_UNICODE
+
inline wxString operator+(const wxString& string, const wxCharBuffer& buf)
{ return string + (const char *)buf; }
inline wxString operator+(const wxCharBuffer& buf, const wxString& string)
{ return (const char *)buf + string; }
-#endif // wxUSE_UNICODE/!wxUSE_UNICODE
// comparison with char
inline bool operator==(const wxUniChar& c, const wxString& s) { return s.IsSameAs(c); }
WXDLLIMPEXP_BASE wxSTD ostream& operator<<(wxSTD ostream&, const wxWCharBuffer&);
#endif
-#endif // wxSTD_STRING_COMPATIBILITY
+#if wxUSE_UNICODE && defined(HAVE_WOSTREAM)
+
+WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxString&);
+WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxCStrData&);
+WXDLLIMPEXP_BASE wxSTD wostream& operator<<(wxSTD wostream&, const wxWCharBuffer&);
+
+#endif // wxUSE_UNICODE && defined(HAVE_WOSTREAM)
+
+#endif // wxUSE_STD_IOSTREAM
// ---------------------------------------------------------------------------
// wxCStrData implementation
inline wxCStrData::wxCStrData(wchar_t *buf)
: m_str(new wxString(buf)), m_offset(0), m_owned(true) {}
-inline wxCStrData::~wxCStrData()
+inline wxCStrData::wxCStrData(const wxCStrData& data)
+ : m_str(data.m_owned ? new wxString(*data.m_str) : data.m_str),
+ m_offset(data.m_offset),
+ m_owned(data.m_owned)
{
- if ( m_owned )
- delete m_str;
}
-inline wxCStrData::operator bool() const
+inline wxCStrData::~wxCStrData()
{
- return !m_str->empty();
+ if ( m_owned )
+ delete const_cast<wxString*>(m_str); // cast to silence warnings
}
// simple cases for AsChar() and AsWChar(), the complicated ones are
}
#endif // !wxUSE_UNICODE
+#if wxUSE_UTF8_LOCALE_ONLY
+inline const char* wxCStrData::AsChar() const
+{
+ return wxStringOperations::AddToIter(m_str->wx_str(), m_offset);
+}
+#endif // wxUSE_UTF8_LOCALE_ONLY
+
+inline const wxCharBuffer wxCStrData::AsCharBuf() const
+{
+#if !wxUSE_UNICODE
+ return wxCharBuffer::CreateNonOwned(AsChar());
+#else
+ return AsString().mb_str();
+#endif
+}
+
+inline const wxWCharBuffer wxCStrData::AsWCharBuf() const
+{
+#if wxUSE_UNICODE_WCHAR
+ return wxWCharBuffer::CreateNonOwned(AsWChar());
+#else
+ return AsString().wc_str();
+#endif
+}
+
inline wxString wxCStrData::AsString() const
{
if ( m_offset == 0 )
return m_str->Mid(m_offset);
}
+inline const wxStringCharType *wxCStrData::AsInternal() const
+{
+#if wxUSE_UNICODE_UTF8
+ return wxStringOperations::AddToIter(m_str->wx_str(), m_offset);
+#else
+ return m_str->wx_str() + m_offset;
+#endif
+}
+
inline wxUniChar wxCStrData::operator*() const
{
if ( m_str->empty() )
inline wxUniChar wxCStrData::operator[](size_t n) const
{
- return m_str->at(m_offset + n);
+ // NB: we intentionally use operator[] and not at() here because the former
+ // works for the terminating NUL while the latter does not
+ return (*m_str)[m_offset + n];
}
// ----------------------------------------------------------------------------
// FIXME-UTF8: move this to buffer.h
inline wxCharBuffer::wxCharBuffer(const wxCStrData& cstr)
- : wxCharTypeBufferBase(cstr.AsChar())
+ : wxCharTypeBufferBase(cstr.AsCharBuf())
{
}
inline wxWCharBuffer::wxWCharBuffer(const wxCStrData& cstr)
- : wxCharTypeBufferBase(cstr.AsWChar())
+ : wxCharTypeBufferBase(cstr.AsWCharBuf())
+{
+}
+
+#if wxUSE_UNICODE_UTF8
+// ----------------------------------------------------------------------------
+// implementation of wxStringIteratorNode inline methods
+// ----------------------------------------------------------------------------
+
+void wxStringIteratorNode::DoSet(const wxString *str,
+ wxStringImpl::const_iterator *citer,
+ wxStringImpl::iterator *iter)
+{
+ m_prev = NULL;
+ m_iter = iter;
+ m_citer = citer;
+ m_str = str;
+ if ( str )
+ {
+ m_next = str->m_iterators.ptr;
+ const_cast<wxString*>(m_str)->m_iterators.ptr = this;
+ if ( m_next )
+ m_next->m_prev = this;
+ }
+ else
+ {
+ m_next = NULL;
+ }
+}
+
+void wxStringIteratorNode::clear()
{
+ if ( m_next )
+ m_next->m_prev = m_prev;
+ if ( m_prev )
+ m_prev->m_next = m_next;
+ else if ( m_str ) // first in the list
+ const_cast<wxString*>(m_str)->m_iterators.ptr = m_next;
+
+ m_next = m_prev = NULL;
+ m_citer = NULL;
+ m_iter = NULL;
+ m_str = NULL;
}
+#endif // wxUSE_UNICODE_UTF8
+
+#if WXWIN_COMPATIBILITY_2_8
+ // lot of code out there doesn't explicitly include wx/crt.h, but uses
+ // CRT wrappers that are now declared in wx/wxcrt.h and wx/wxcrtvararg.h,
+ // so let's include this header now that wxString is defined and it's safe
+ // to do it:
+ #include "wx/crt.h"
+#endif
#endif // _WX_WXSTRING_H_
projects / wxWidgets.git / blobdiff