#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
-
-#ifdef __WXPALMOS__
- #include <StringMgr.h>
-#endif
+#endif // ! __WXPALMOS5__
#include "wx/wxcrtbase.h" // for wxChar, wxStrlen() etc.
#include "wx/strvararg.h"
#define WXWIN_COMPATIBILITY_STRING_PTR_AS_ITER 1
#endif
+namespace wxPrivate
+{
+ template <typename T> struct wxStringAsBufHelper;
+}
+
// ---------------------------------------------------------------------------
// macros
// ---------------------------------------------------------------------------
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
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; }
+ {
+ if (&i != this)
+ {
+ m_cur = i.m_cur;
+ m_node.set(i.str(), &m_cur);
+ }
+ return *this;
+ }
reference operator*()
{ return wxUniCharRef::CreateForString(m_node, m_cur); }
: 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; }
+ {
+ 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; }
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
#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(this, m_impl.begin()); }
iterator begin() { return iterator(this, m_impl.begin()); }
{ 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.)
}
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)
{ return wxString(utf8, wxMBConvUTF8()); }
// overloaded assignment
// from another wxString
wxString& operator=(const wxString& stringSrc)
- { m_impl = stringSrc.m_impl; return *this; }
+ { if (&stringSrc != this) 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 = wxStringOperations::EncodeChar(ch); return *this; }
+ {
+#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 operator=((wxUniChar)ch); }
wxString& operator=(char ch)
{ 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)
{ return compare(s); }
// same as Cmp() but not case-sensitive
int CmpNoCase(const wxString& s) const;
+
// test for the string equality, either considering case or not
// (if compareWithCase then the case matters)
bool IsSameAs(const 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
// 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();
{ 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)
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.impl(), last.impl()); return *this; }
// find the first occurence of character ch after nStart
size_t find(wxUniChar ch, size_t nStart = 0) const
{
- return PosFromImpl(m_impl.find(wxStringOperations::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); }
// as find, but from the end
size_t rfind(wxUniChar ch, size_t nStart = npos) const
{
- return PosFromImpl(m_impl.rfind(wxStringOperations::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); }
{ return operator+=(s.data()); }
// string += char
wxString& operator+=(wxUniChar ch)
- { m_impl += wxStringOperations::EncodeChar(ch); return *this; }
+ {
+#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); }
#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)
+ {
+ wxCharBuffer buf(s.mb_str());
+ if ( len )
+ *len = buf ? strlen(buf) : 0;
+ return buf;
+ }
+};
+
+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
// ----------------------------------------------------------------------------
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;
+ }
+
+ wxTmemcpy(m_buf.data(), buf, len + 1);
+ }
+ //else: conversion failed, this can happen when trying to get Unicode
+ // string contents into a char string
+ }
operator CharType*() { return m_buf.data(); }
template<typename T>
class WXDLLIMPEXP_BASE wxStringTypeBufferLengthBase
+ : public wxStringTypeBufferBase<T>
{
public:
- typedef T CharType;
-
wxStringTypeBufferLengthBase(wxString& str, size_t lenWanted = 1024)
- : m_str(str), m_buf(lenWanted), m_len(0), m_lenSet(false)
+ : wxStringTypeBufferBase<T>(str, lenWanted),
+ m_len(0),
+ m_lenSet(false)
{ }
- operator CharType*() { return m_buf.data(); }
+ ~wxStringTypeBufferLengthBase()
+ {
+ wxASSERT_MSG( this->m_lenSet, "forgot to call SetLength()" );
+ }
+
void SetLength(size_t length) { m_len = length; m_lenSet = true; }
protected:
- wxString& m_str;
- wxCharTypeBuffer<CharType> m_buf;
- size_t m_len;
- bool m_lenSet;
+ size_t m_len;
+ bool m_lenSet;
};
template<typename T>
{
public:
wxStringTypeBuffer(wxString& str, size_t lenWanted = 1024)
- : wxStringTypeBufferBase<T>(str, lenWanted) {}
+ : wxStringTypeBufferBase<T>(str, lenWanted)
+ { }
+
~wxStringTypeBuffer()
{
this->m_str.assign(this->m_buf.data());
{
public:
wxStringTypeBufferLength(wxString& str, size_t lenWanted = 1024)
- : wxStringTypeBufferLengthBase<T>(str, lenWanted) {}
+ : wxStringTypeBufferLengthBase<T>(str, lenWanted)
+ { }
~wxStringTypeBufferLength()
{
- wxASSERT(this->m_lenSet);
this->m_str.assign(this->m_buf.data(), this->m_len);
}
~wxStringInternalBufferLength()
{
- wxASSERT(m_lenSet);
m_str.m_impl.assign(m_buf.data(), m_len);
}
DECLARE_NO_COPY_CLASS(wxStringInternalBufferLength)
};
+
#endif // wxUSE_STL_BASED_WXSTRING
#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)
projects / wxWidgets.git / blobdiff