#include <StringMgr.h>
#endif
-#include "wx/wxcrt.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
#pragma warning (disable:4275)
#endif
+#if wxUSE_UNICODE_UTF8
+// see the comment near wxString::iterator for why we need this
+struct WXDLLIMPEXP_BASE wxStringIteratorNode
+{
+ 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
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();
}
#endif // !wxUSE_UNICODE_UTF8/wxUSE_UNICODE_UTF8
#define WX_STR_ITERATOR_TAG void /* dummy type */
#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 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++() \
private: \
underlying_iterator m_cur
- class const_iterator;
+ class WXDLLIMPEXP_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)
+ { m_cur = i.m_cur; m_node.set(i.str(), &m_cur); return *this; }
+
+ reference operator*()
+ { return wxUniCharRef::CreateForString(m_node, m_cur); }
iterator operator+(int n) const
- { return iterator(m_str, wxStringOperations::AddToIter(m_cur, n)); }
+ { return iterator(str(), wxStringOperations::AddToIter(m_cur, n)); }
iterator operator+(size_t n) const
- { return iterator(m_str, wxStringOperations::AddToIter(m_cur, (int)n)); }
+ { return iterator(str(), wxStringOperations::AddToIter(m_cur, (int)n)); }
iterator operator-(int n) const
- { return iterator(m_str, wxStringOperations::AddToIter(m_cur, -n)); }
+ { return iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); }
iterator operator-(size_t n) const
- { return iterator(m_str, wxStringOperations::AddToIter(m_cur, -(int)n)); }
+ { return iterator(str(), wxStringOperations::AddToIter(m_cur, -(int)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 wx_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)
+ { 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+(int n) const
+ { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, n)); }
+ const_iterator operator+(size_t n) const
+ { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, (int)n)); }
+ const_iterator operator-(int n) const
+ { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, -n)); }
+ const_iterator operator-(size_t n) const
+ { return const_iterator(str(), wxStringOperations::AddToIter(m_cur, -(int)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(); }
#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) {}
+ reference operator*()
+ { return wxUniCharRef::CreateForString(m_cur); }
+
iterator operator+(int n) const
{ return iterator(wxStringOperations::AddToIter(m_cur, n)); }
iterator operator+(size_t n) const
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,
- wxStringOperations::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) {}
+ reference operator*() const
+ { return wxStringOperations::DecodeChar(m_cur); }
+
const_iterator operator+(int n) const
{ return const_iterator(wxStringOperations::AddToIter(m_cur, n)); }
const_iterator operator+(size_t n) const
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) {}
};
+#endif // wxUSE_UNICODE_UTF8/!wxUSE_UNICODE_UTF8
#undef WX_STR_ITERATOR_TAG
#undef WX_STR_ITERATOR_IMPL
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) {}
// 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
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; }
#endif // wxUSE_STL
// 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
// implicit conversion to C string
operator wxCStrData() const { return c_str(); }
+
+ // these operators conflict with operators for conversion to std::string,
+ // so they must be disabled in STL build:
+#if !wxUSE_STL
operator const char*() const { return c_str(); }
operator const wchar_t*() const { return c_str(); }
+#endif
// implicit conversion to untyped pointer for compatibility with previous
// wxWidgets versions: this is the same as conversion to const char * so it
// 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, size_t len); // string
static wxString FromAscii(const char *ascii); // string
static wxString FromAscii(const char ascii); // char
const wxCharBuffer ToAscii() const;
#else // ANSI
static wxString FromAscii(const char *ascii) { return wxString( ascii ); }
+ static wxString FromAscii(const char *ascii, size_t len)
+ { return wxString( ascii, len ); }
static wxString FromAscii(const char ascii) { return wxString( ascii ); }
const char *ToAscii() const { return c_str(); }
#endif // Unicode/!Unicode
#if wxUSE_UNICODE_UTF8
static wxString FromUTF8(const char *utf8)
{
+ if ( !utf8 )
+ return wxEmptyString;
+
wxASSERT( wxStringOperations::IsValidUtf8String(utf8) );
return FromImpl(wxStringImpl(utf8));
}
static wxString FromUTF8(const char *utf8, size_t len)
{
+ if ( !utf8 )
+ return wxEmptyString;
+ if ( len == npos )
+ return FromUTF8(utf8);
+
wxASSERT( wxStringOperations::IsValidUtf8String(utf8, len) );
return FromImpl(wxStringImpl(utf8, len));
}
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); }
private:
wxStringImpl m_impl;
+#ifdef __VISUALC__
+ // "struct 'ConvertedBuffer<T>' needs to have dll-interface to be used by
+ // clients of class 'wxString'" - this is private, we don't care
+ #pragma warning (disable:4251)
+#endif
+
// buffers for compatibility conversion from (char*)c_str() and
// (wchar_t*)c_str():
// FIXME-UTF8: bechmark various approaches to keeping compatibility buffers
ConvertedBuffer<wchar_t> m_convertedToWChar;
#endif
+#ifdef __VISUALC__
+ #pragma warning (default:4251)
+#endif
+
+#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_BASE wxStringIteratorNode;
+ friend class WXDLLIMPEXP_BASE wxUniCharRef;
+#endif // wxUSE_UNICODE_UTF8
+
friend class WXDLLIMPEXP_BASE wxCStrData;
friend class wxImplStringBuffer;
friend class wxImplStringBufferLength;
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); }
inline wxCStrData::~wxCStrData()
{
if ( m_owned )
- delete m_str;
+ delete wx_const_cast(wxString*, m_str); // cast to silence warnings
}
// simple cases for AsChar() and AsWChar(), the complicated ones are
{
}
+#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;
+ wx_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
+ wx_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/wxchar.h, but uses
+ // 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/wxchar.h"
+ #include "wx/crt.h"
#endif
#endif // _WX_WXSTRING_H_
projects / wxWidgets.git / blobdiff