// 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
// ===========================================================================
#ifndef WX_PRECOMP
#include "wx/string.h"
+ #include "wx/wxcrtvararg.h"
#endif
#include <ctype.h>
{
// 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
// ----------------------------------------------------------------------------
}
#endif
-#if wxUSE_UNICODE
+#if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
const char* wxCStrData::AsChar() const
{
+#if wxUSE_UNICODE_UTF8
+ if ( wxLocaleIsUtf8 )
+ return AsInternal();
+#endif
+ // under non-UTF8 locales, we have to convert the internal UTF-8
+ // representation using wxConvLibc and cache the result
+
wxString *str = wxConstCast(m_str, wxString);
// convert the string:
// and keep it:
return str->m_convertedToChar + m_offset;
}
-#endif // wxUSE_UNICODE
+#endif // wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
#if !wxUSE_UNICODE_WCHAR
const wchar_t* wxCStrData::AsWChar() const
// construction and conversion
// ---------------------------------------------------------------------------
-#if wxUSE_UNICODE
+#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)
+{
+ // anything to do?
+ if ( !psz || nLength == 0 )
+ return SubstrBufFromMB("", 0);
+
+ // if psz is already in UTF-8, we don't have to do the roundtrip to
+ // wchar_t* and back:
+ if ( conv.IsUTF8() )
+ {
+ // we need to validate the input because UTF8 iterators assume valid
+ // UTF-8 sequence and psz may be invalid:
+ if ( wxStringOperations::IsValidUtf8String(psz, nLength) )
+ {
+ return SubstrBufFromMB(wxCharBuffer::CreateNonOwned(psz), nLength);
+ }
+ // else: do the roundtrip through wchar_t*
+ }
+
+ 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, wxMBConvStrictUTF8()));
+ // 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 wxMBConvStrictUTF8().cMB2WC
+ (
+ m_impl.c_str(),
+ m_impl.length() + 1, // size, not length
+ NULL
+ );
+}
+
+const wxCharBuffer wxString::mb_str(const wxMBConv& conv) const
+{
+ if ( conv.IsUTF8() )
+ return wxCharBuffer::CreateNonOwned(m_impl.c_str());
-#if wxUSE_WCHAR_T
+ // FIXME-UTF8: use wc_str() here once we have buffers with length
+
+ size_t wcLen;
+ wxWCharBuffer wcBuf(wxMBConvStrictUTF8().cMB2WC
+ (
+ m_impl.c_str(),
+ m_impl.length() + 1, // size
+ &wcLen
+ ));
+ if ( !wcLen )
+ return wxCharBuffer("");
+
+ return conv.cWC2MB(wcBuf, wcLen, NULL);
+}
+
+#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)
// deprecated compatibility code:
#if WXWIN_COMPATIBILITY_2_8 && !wxUSE_STL_BASED_WXSTRING && !wxUSE_UNICODE_UTF8
-wxChar *wxString::GetWriteBuf(size_t nLen)
+wxStringCharType *wxString::GetWriteBuf(size_t nLen)
{
return DoGetWriteBuf(nLen);
}
// string comparison
// ---------------------------------------------------------------------------
+bool wxString::IsSameAs(wxUniChar c, bool compareWithCase) const
+{
+ return (length() == 1) && (compareWithCase ? GetChar(0u) == c
+ : wxToupper(GetChar(0u)) == wxToupper(c));
+}
+
#ifdef HAVE_STD_STRING_COMPARE
// NB: Comparison code (both if HAVE_STD_STRING_COMPARE and if not) works with
#endif
#endif
-wxString wxString::FromAscii(const char *ascii)
+wxString wxString::FromAscii(const char *ascii, size_t len)
{
- if (!ascii)
+ if (!ascii || len == 0)
return wxEmptyString;
- size_t len = strlen( ascii );
wxString res;
- if ( len )
{
- wxStringBuffer buf(res, len);
-
- wchar_t *dest = buf;
+ wxImplStringBuffer buf(res, len);
+ wxStringCharType *dest = buf;
- for ( ;; )
+ for ( ; len > 0; --len )
{
- if ( (*dest++ = (wchar_t)(unsigned char)*ascii++) == L'\0' )
- break;
+ unsigned char c = (unsigned char)*ascii++;
+ wxASSERT_MSG( c < 0x80,
+ _T("Non-ASCII value passed to FromAscii().") );
+
+ *dest++ = (wchar_t)c;
}
}
return res;
}
+wxString wxString::FromAscii(const char *ascii)
+{
+ return FromAscii(ascii, wxStrlen(ascii));
+}
+
wxString wxString::FromAscii(const char ascii)
{
// What do we do with '\0' ?
- wxString res;
- res += (wchar_t)(unsigned char) ascii;
+ unsigned char c = (unsigned char)ascii;
- return res;
+ wxASSERT_MSG( c < 0x80, _T("Non-ASCII value passed to FromAscii().") );
+
+ // NB: the cast to wchar_t causes interpretation of 'ascii' as Latin1 value
+ return wxString(wxUniChar((wchar_t)c));
}
const wxCharBuffer wxString::ToAscii() const
{
// this will allocate enough space for the terminating NUL too
wxCharBuffer buffer(length());
-
-
char *dest = buffer.data();
- const wchar_t *pwc = c_str();
- for ( ;; )
+ for ( const_iterator i = begin(); i != end(); ++i )
{
- *dest++ = (char)(*pwc > SCHAR_MAX ? wxT('_') : *pwc);
+ wxUniChar c(*i);
+ // FIXME-UTF8: unify substituted char ('_') with wxUniChar ('?')
+ *dest++ = c.IsAscii() ? (char)c : '_';
// the output string can't have embedded NULs anyhow, so we can safely
// stop at first of them even if we do have any
- if ( !*pwc++ )
+ if ( !c )
break;
}
return buffer;
}
-#endif // Unicode
+#endif // wxUSE_UNICODE
// extract string of length nCount starting at nFirst
wxString wxString::Mid(size_t nFirst, size_t nCount) const
// check that the string starts with prefix and return the rest of the string
// in the provided pointer if it is not NULL, otherwise return false
-bool wxString::StartsWith(const wxChar *prefix, wxString *rest) const
+bool wxString::StartsWith(const wxString& prefix, wxString *rest) const
{
- wxASSERT_MSG( prefix, _T("invalid parameter in wxString::StartsWith") );
-
- // first check if the beginning of the string matches the prefix: note
- // that we don't have to check that we don't run out of this string as
- // when we reach the terminating NUL, either prefix string ends too (and
- // then it's ok) or we break out of the loop because there is no match
- const wxChar *p = c_str();
- while ( *prefix )
- {
- if ( *prefix++ != *p++ )
- {
- // no match
- return false;
- }
- }
+ if ( compare(0, prefix.length(), prefix) != 0 )
+ return false;
if ( rest )
{
// put the rest of the string into provided pointer
- *rest = p;
+ rest->assign(*this, prefix.length(), npos);
}
return true;
// check that the string ends with suffix and return the rest of it in the
// provided pointer if it is not NULL, otherwise return false
-bool wxString::EndsWith(const wxChar *suffix, wxString *rest) const
+bool wxString::EndsWith(const wxString& suffix, wxString *rest) const
{
- wxASSERT_MSG( suffix, _T("invalid parameter in wxString::EndssWith") );
+ int start = length() - suffix.length();
- 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
// conversion to numbers
// ----------------------------------------------------------------------------
-// the implementation of all the functions below is exactly the same so factor
-// it out
+// The implementation of all the functions below is exactly the same so factor
+// it out. Note that number extraction works correctly on UTF-8 strings, so
+// we can use wxStringCharType and wx_str() for maximum efficiency.
-template <typename T, typename F>
-bool wxStringToIntType(const wxChar *start,
+template <typename T>
+bool wxStringToIntType(const wxStringCharType *start,
T *val,
int base,
- F func)
+ T (*func)(const wxStringCharType*, wxStringCharType**, int))
{
wxCHECK_MSG( val, false, _T("NULL output pointer") );
wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") );
errno = 0;
#endif
- wxChar *end;
+ wxStringCharType *end;
*val = (*func)(start, &end, base);
// return true only if scan was stopped by the terminating NUL and if the
bool wxString::ToLong(long *val, int base) const
{
- return wxStringToIntType((const wxChar*)c_str(), val, base, wxStrtol);
+ return wxStringToIntType(wx_str(), val, base, wxStrtol);
}
bool wxString::ToULong(unsigned long *val, int base) const
{
- return wxStringToIntType((const wxChar*)c_str(), val, base, wxStrtoul);
+ return wxStringToIntType(wx_str(), val, base, wxStrtoul);
}
bool wxString::ToLongLong(wxLongLong_t *val, int base) const
{
- return wxStringToIntType((const wxChar*)c_str(), val, base, wxStrtoll);
+ return wxStringToIntType(wx_str(), val, base, wxStrtoll);
}
bool wxString::ToULongLong(wxULongLong_t *val, int base) const
{
- return wxStringToIntType((const wxChar*)c_str(), val, base, wxStrtoull);
+ return wxStringToIntType(wx_str(), val, base, wxStrtoull);
}
bool wxString::ToDouble(double *val) const
// formatted output
// ---------------------------------------------------------------------------
+#if !wxUSE_UTF8_LOCALE_ONLY
/* static */
#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
-wxString wxStringPrintfMixinBase::DoFormat(const wxChar *format, ...)
+wxString wxStringPrintfMixinBase::DoFormatWchar(const wxChar *format, ...)
#else
-wxString wxString::DoFormat(const wxChar *format, ...)
+wxString wxString::DoFormatWchar(const wxChar *format, ...)
#endif
{
va_list argptr;
return s;
}
+#endif // !wxUSE_UTF8_LOCALE_ONLY
+
+#if wxUSE_UNICODE_UTF8
+/* static */
+wxString wxString::DoFormatUtf8(const char *format, ...)
+{
+ va_list argptr;
+ va_start(argptr, format);
+
+ wxString s;
+ s.PrintfV(format, argptr);
+
+ va_end(argptr);
+
+ return s;
+}
+#endif // wxUSE_UNICODE_UTF8
/* static */
wxString wxString::FormatV(const wxString& format, va_list argptr)
return s;
}
+#if !wxUSE_UTF8_LOCALE_ONLY
#ifdef wxNEEDS_WXSTRING_PRINTF_MIXIN
-int wxStringPrintfMixinBase::DoPrintf(const wxChar *format, ...)
+int wxStringPrintfMixinBase::DoPrintfWchar(const wxChar *format, ...)
#else
-int wxString::DoPrintf(const wxChar *format, ...)
+int wxString::DoPrintfWchar(const wxChar *format, ...)
#endif
{
va_list argptr;
return iLen;
}
+#endif // !wxUSE_UTF8_LOCALE_ONLY
-int wxString::PrintfV(const wxString& format, va_list argptr)
+#if wxUSE_UNICODE_UTF8
+int wxString::DoPrintfUtf8(const char *format, ...)
+{
+ va_list argptr;
+ va_start(argptr, format);
+
+ int iLen = PrintfV(format, argptr);
+
+ va_end(argptr);
+
+ return iLen;
+}
+#endif // wxUSE_UNICODE_UTF8
+
+#if wxUSE_UNICODE_UTF8
+template<typename BufferType>
+#else
+// we only need one version in non-UTF8 builds and at least two Windows
+// compilers have problems with this function template, so use just one
+// normal function here
+#endif
+static int DoStringPrintfV(wxString& str,
+ const wxString& format, va_list argptr)
{
int size = 1024;
for ( ;; )
{
- wxStringBuffer tmp(*this, size + 1);
+#if wxUSE_UNICODE_UTF8
+ BufferType tmp(str, size + 1);
+ typename BufferType::CharType *buf = tmp;
+#else
+ wxStringBuffer tmp(str, size + 1);
wxChar *buf = tmp;
+#endif
if ( !buf )
{
// out of memory
+
+ // in UTF-8 build, leaving uninitialized junk in the buffer
+ // could result in invalid non-empty UTF-8 string, so just
+ // reset the string to empty on failure:
+ buf[0] = '\0';
return -1;
}
// buffer were large enough (newer standards such as Unix98)
if ( len < 0 )
{
+ // NB: wxVsnprintf() may call either wxCRT_VsnprintfW or
+ // wxCRT_VsnprintfA in UTF-8 build; wxUSE_WXVSNPRINTF
+ // is true if *both* of them use our own implementation,
+ // otherwise we can't be sure
#if wxUSE_WXVSNPRINTF
// we know that our own implementation of wxVsnprintf() returns -1
// only for a format error - thus there's something wrong with
// the user's format string
+ buf[0] = '\0';
return -1;
-#else // assume that system version only returns error if not enough space
- // still not enough, as we don't know how much we need, double the
- // current size of the buffer
+#else // possibly using system version
+ // assume it only returns error if there is not enough space, but
+ // as we don't know how much we need, double the current size of
+ // the buffer
size *= 2;
#endif // wxUSE_WXVSNPRINTF/!wxUSE_WXVSNPRINTF
}
}
// we could have overshot
- Shrink();
+ str.Shrink();
- return length();
+ return str.length();
+}
+
+int wxString::PrintfV(const wxString& format, va_list argptr)
+{
+#if wxUSE_UNICODE_UTF8
+ #if wxUSE_STL_BASED_WXSTRING
+ typedef wxStringTypeBuffer<char> Utf8Buffer;
+ #else
+ typedef wxImplStringBuffer Utf8Buffer;
+ #endif
+#endif
+
+#if wxUSE_UTF8_LOCALE_ONLY
+ return DoStringPrintfV<Utf8Buffer>(*this, format, argptr);
+#else
+ #if wxUSE_UNICODE_UTF8
+ if ( wxLocaleIsUtf8 )
+ return DoStringPrintfV<Utf8Buffer>(*this, format, argptr);
+ else
+ // wxChar* version
+ return DoStringPrintfV<wxStringBuffer>(*this, format, argptr);
+ #else
+ return DoStringPrintfV(*this, format, argptr);
+ #endif // UTF8/WCHAR
+#endif
}
// ----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff