// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-/*
- * About ref counting:
- * 1) all empty strings use g_strEmpty, nRefs = -1 (set in Init())
- * 2) AllocBuffer() sets nRefs to 1, Lock() increments it by one
- * 3) Unlock() decrements nRefs and frees memory if it goes to 0
- */
-
// ===========================================================================
// headers, declarations, constants
// ===========================================================================
#include <clib.h>
#endif
-#include <wx/hashmap.h>
+#include "wx/hashmap.h"
// string handling functions used by wxString:
#if wxUSE_UNICODE_UTF8
{
// FIXME-UTF8: always, not only if wxUSE_UNICODE
#if wxUSE_UNICODE && !defined(__BORLANDC__)
- return os << str.AsWChar();
+ return os << (const wchar_t*)str.AsWCharBuf();
#else
- return os << str.AsChar();
+ return os << (const char*)str.AsCharBuf();
#endif
}
#endif // wxUSE_STD_IOSTREAM
+// ===========================================================================
+// wxString class core
+// ===========================================================================
+
+#if wxUSE_UNICODE_UTF8
+
+void wxString::PosLenToImpl(size_t pos, size_t len,
+ size_t *implPos, size_t *implLen) const
+{
+ if ( pos == npos )
+ *implPos = npos;
+ else
+ {
+ const_iterator i = begin() + pos;
+ *implPos = wxStringImpl::const_iterator(i.impl()) - m_impl.begin();
+ if ( len == npos )
+ *implLen = npos;
+ else
+ {
+ // too large length is interpreted as "to the end of the string"
+ // FIXME-UTF8: verify this is the case in std::string, assert
+ // otherwise
+ if ( pos + len > length() )
+ len = length() - pos;
+
+ *implLen = (i + len).impl() - i.impl();
+ }
+ }
+}
+
+#endif // wxUSE_UNICODE_UTF8
+
// ----------------------------------------------------------------------------
// wxCStrData converted strings caching
// ----------------------------------------------------------------------------
+// FIXME-UTF8: temporarily disabled because it doesn't work with global
+// string objects; re-enable after fixing this bug and benchmarking
+// performance to see if using a hash is a good idea at all
+#if 0
+
// For backward compatibility reasons, it must be possible to assign the value
// returned by wxString::c_str() to a char* or wchar_t* variable and work with
// it. Returning wxCharBuffer from (const char*)c_str() wouldn't do the trick,
}
#endif // !wxUSE_UNICODE_WCHAR
-// ===========================================================================
-// wxString class core
-// ===========================================================================
-
-// ---------------------------------------------------------------------------
-// construction and conversion
-// ---------------------------------------------------------------------------
-
wxString::~wxString()
{
#if wxUSE_UNICODE
DeleteStringFromConversionCache(gs_stringsWCharCache, this);
#endif
}
+#endif
#if wxUSE_UNICODE
+const char* wxCStrData::AsChar() const
+{
+ wxString *str = wxConstCast(m_str, wxString);
+
+ // convert the string:
+ wxCharBuffer buf(str->mb_str());
+
+ // FIXME-UTF8: do the conversion in-place in the existing buffer
+ if ( str->m_convertedToChar &&
+ strlen(buf) == strlen(str->m_convertedToChar) )
+ {
+ // keep the same buffer for as long as possible, so that several calls
+ // to c_str() in a row still work:
+ strcpy(str->m_convertedToChar, buf);
+ }
+ else
+ {
+ str->m_convertedToChar = buf.release();
+ }
+
+ // and keep it:
+ return str->m_convertedToChar + m_offset;
+}
+#endif // wxUSE_UNICODE
+
+#if !wxUSE_UNICODE_WCHAR
+const wchar_t* wxCStrData::AsWChar() const
+{
+ wxString *str = wxConstCast(m_str, wxString);
+
+ // convert the string:
+ wxWCharBuffer buf(str->wc_str());
+
+ // FIXME-UTF8: do the conversion in-place in the existing buffer
+ if ( str->m_convertedToWChar &&
+ wxWcslen(buf) == wxWcslen(str->m_convertedToWChar) )
+ {
+ // keep the same buffer for as long as possible, so that several calls
+ // to c_str() in a row still work:
+ memcpy(str->m_convertedToWChar, buf, sizeof(wchar_t) * wxWcslen(buf));
+ }
+ else
+ {
+ str->m_convertedToWChar = buf.release();
+ }
+
+ // and keep it:
+ return str->m_convertedToWChar + m_offset;
+}
+#endif // !wxUSE_UNICODE_WCHAR
+
+// ===========================================================================
+// wxString class core
+// ===========================================================================
+
+// ---------------------------------------------------------------------------
+// construction and conversion
+// ---------------------------------------------------------------------------
+
+#if wxUSE_UNICODE_WCHAR
/* static */
wxString::SubstrBufFromMB wxString::ConvertStr(const char *psz, size_t nLength,
const wxMBConv& conv)
{
// anything to do?
if ( !psz || nLength == 0 )
- return SubstrBufFromMB();
+ return SubstrBufFromMB(L"", 0);
if ( nLength == npos )
nLength = wxNO_LEN;
size_t wcLen;
wxWCharBuffer wcBuf(conv.cMB2WC(psz, nLength, &wcLen));
if ( !wcLen )
- return SubstrBufFromMB();
+ return SubstrBufFromMB(_T(""), 0);
else
return SubstrBufFromMB(wcBuf, wcLen);
}
-#else
+#endif // wxUSE_UNICODE_WCHAR
+
+#if wxUSE_UNICODE_UTF8
+/* static */
+wxString::SubstrBufFromMB wxString::ConvertStr(const char *psz, size_t nLength,
+ const wxMBConv& conv)
+{
+ // FIXME-UTF8: return as-is without copying under UTF8 locale, return
+ // converted string under other locales - needs wxCharBuffer
+ // changes
+
+ // anything to do?
+ if ( !psz || nLength == 0 )
+ return SubstrBufFromMB("", 0);
+
+ if ( nLength == npos )
+ nLength = wxNO_LEN;
+
+ // first convert to wide string:
+ size_t wcLen;
+ wxWCharBuffer wcBuf(conv.cMB2WC(psz, nLength, &wcLen));
+ if ( !wcLen )
+ return SubstrBufFromMB("", 0);
+
+ // and then to UTF-8:
+ SubstrBufFromMB buf(ConvertStr(wcBuf, wcLen, wxConvUTF8));
+ // widechar -> UTF-8 conversion isn't supposed to ever fail:
+ wxASSERT_MSG( buf.data, _T("conversion to UTF-8 failed") );
+
+ return buf;
+}
+#endif // wxUSE_UNICODE_UTF8
+
+#if wxUSE_UNICODE_UTF8 || !wxUSE_UNICODE
/* static */
wxString::SubstrBufFromWC wxString::ConvertStr(const wchar_t *pwz, size_t nLength,
const wxMBConv& conv)
{
// anything to do?
if ( !pwz || nLength == 0 )
- return SubstrBufFromWC();
+ return SubstrBufFromWC("", 0);
if ( nLength == npos )
nLength = wxNO_LEN;
size_t mbLen;
wxCharBuffer mbBuf(conv.cWC2MB(pwz, nLength, &mbLen));
if ( !mbLen )
- return SubstrBufFromWC();
+ return SubstrBufFromWC("", 0);
else
return SubstrBufFromWC(mbBuf, mbLen);
}
-#endif
+#endif // wxUSE_UNICODE_UTF8 || !wxUSE_UNICODE
-#if wxUSE_UNICODE
+#if wxUSE_UNICODE_WCHAR
//Convert wxString in Unicode mode to a multi-byte string
const wxCharBuffer wxString::mb_str(const wxMBConv& conv) const
{
- return conv.cWC2MB(c_str(), length() + 1 /* size, not length */, NULL);
+ return conv.cWC2MB(wx_str(), length() + 1 /* size, not length */, NULL);
}
-#else // ANSI
+#elif wxUSE_UNICODE_UTF8
+
+const wxWCharBuffer wxString::wc_str() const
+{
+ return wxConvUTF8.cMB2WC(m_impl.c_str(),
+ m_impl.length() + 1 /* size, not length */,
+ NULL);
+}
+
+const wxCharBuffer wxString::mb_str(const wxMBConv& conv) const
+{
+ // FIXME-UTF8: optimize the case when conv==wxConvUTF8 or wxConvLibc
+ // under UTF8 locale
+ // FIXME-UTF8: use wc_str() here once we have buffers with length
+
+ size_t wcLen;
+ wxWCharBuffer wcBuf(
+ wxConvUTF8.cMB2WC(m_impl.c_str(),
+ m_impl.length() + 1 /* size, not length */,
+ &wcLen));
+ if ( !wcLen )
+ return wxCharBuffer("");
+
+ return conv.cWC2MB(wcBuf, wcLen, NULL);
+}
-#if wxUSE_WCHAR_T
+#else // ANSI
//Converts this string to a wide character string if unicode
//mode is not enabled and wxUSE_WCHAR_T is enabled
const wxWCharBuffer wxString::wc_str(const wxMBConv& conv) const
{
- return conv.cMB2WC(c_str(), length() + 1 /* size, not length */, NULL);
+ return conv.cMB2WC(wx_str(), length() + 1 /* size, not length */, NULL);
}
-#endif // wxUSE_WCHAR_T
-
#endif // Unicode/ANSI
// shrink to minimal size (releasing extra memory)
wxASSERT_MSG( suffix, _T("invalid parameter in wxString::EndssWith") );
int start = length() - wxStrlen(suffix);
- if ( start < 0 || wxStrcmp(wx_str() + start, suffix) != 0 )
+
+ if ( start < 0 || compare(start, npos, suffix) != 0 )
return false;
if ( rest )
bool wxString::IsAscii() const
{
- const wxChar *s = (const wxChar*) *this;
- while(*s){
- if(!isascii(*s)) return(false);
- s++;
- }
- return(true);
+ for ( const_iterator i = begin(); i != end(); ++i )
+ {
+ if ( !(*i).IsAscii() )
+ return false;
+ }
+
+ return true;
}
bool wxString::IsWord() const
{
- const wxChar *s = (const wxChar*) *this;
- while(*s){
- if(!wxIsalpha(*s)) return(false);
- s++;
- }
- return(true);
+ for ( const_iterator i = begin(); i != end(); ++i )
+ {
+ if ( !wxIsalpha(*i) )
+ return false;
+ }
+
+ return true;
}
bool wxString::IsNumber() const
{
- const wxChar *s = (const wxChar*) *this;
- if (wxStrlen(s))
- if ((s[0] == wxT('-')) || (s[0] == wxT('+'))) s++;
- while(*s){
- if(!wxIsdigit(*s)) return(false);
- s++;
- }
- return(true);
+ if ( empty() )
+ return true;
+
+ const_iterator i = begin();
+
+ if ( *i == _T('-') || *i == _T('+') )
+ ++i;
+
+ for ( ; i != end(); ++i )
+ {
+ if ( !wxIsdigit(*i) )
+ return false;
+ }
+
+ return true;
}
wxString wxString::Strip(stripType w) const
bool wxString::ToLongLong(wxLongLong_t *val, int base) const
{
-#ifdef wxHAS_STRTOLL
return wxStringToIntType((const wxChar*)c_str(), val, base, wxStrtoll);
-#else
- // TODO: implement this ourselves
- wxUnusedVar(val);
- wxUnusedVar(base);
- return false;
-#endif // wxHAS_STRTOLL
}
bool wxString::ToULongLong(wxULongLong_t *val, int base) const
{
-#ifdef wxHAS_STRTOLL
return wxStringToIntType((const wxChar*)c_str(), val, base, wxStrtoull);
-#else
- // TODO: implement this ourselves
- wxUnusedVar(val);
- wxUnusedVar(base);
- return false;
-#endif
}
bool wxString::ToDouble(double *val) const
// only a copy
va_list argptrcopy;
wxVaCopy(argptrcopy, argptr);
- int len = wxVsnprintf(buf, size, format, argptrcopy);
+ int len = wxVsnprintf(buf, size, (const wxChar*)/*FIXME-UTF8*/format, argptrcopy);
va_end(argptrcopy);
// some implementations of vsnprintf() don't NUL terminate
projects / wxWidgets.git / blobdiff