X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5276b0a53cef4815230e39b54d2ecda14f72cbd1..51ec29ea5d1d1093bafbae27a8483211a90d9659:/src/common/strconv.cpp diff --git a/src/common/strconv.cpp b/src/common/strconv.cpp index a58245815d..f6dbc341f5 100644 --- a/src/common/strconv.cpp +++ b/src/common/strconv.cpp @@ -537,7 +537,7 @@ const wxWCharBuffer wxMBConv::cMB2WC(const wxScopedCharBuffer& buf) const } } - return wxWCharBuffer(); + return wxScopedWCharBuffer::CreateNonOwned(L"", 0); } const wxCharBuffer wxMBConv::cWC2MB(const wxScopedWCharBuffer& wbuf) const @@ -555,7 +555,7 @@ const wxCharBuffer wxMBConv::cWC2MB(const wxScopedWCharBuffer& wbuf) const } } - return wxCharBuffer(); + return wxScopedCharBuffer::CreateNonOwned("", 0); } // ---------------------------------------------------------------------------- @@ -995,7 +995,7 @@ wxMBConvStrictUTF8::ToWChar(wchar_t *dst, size_t dstLen, for ( const char *p = src; ; p++ ) { - if ( !(srcLen == wxNO_LEN ? *p : srcLen) ) + if ( (srcLen == wxNO_LEN ? !*p : !srcLen) ) { // all done successfully, just add the trailing NULL if we are not // using explicit length @@ -1115,7 +1115,7 @@ wxMBConvStrictUTF8::FromWChar(char *dst, size_t dstLen, for ( const wchar_t *wp = src; ; wp++ ) { - if ( !(srcLen == wxNO_LEN ? *wp : srcLen) ) + if ( (srcLen == wxNO_LEN ? !*wp : !srcLen) ) { // all done successfully, just add the trailing NULL if we are not // using explicit length @@ -1145,6 +1145,8 @@ wxMBConvStrictUTF8::FromWChar(char *dst, size_t dstLen, { // skip the next char too as we decoded a surrogate wp++; + if ( srcLen != wxNO_LEN ) + srcLen--; } #else // wchar_t is UTF-32 code = *wp & 0x7fffffff; @@ -1230,7 +1232,10 @@ size_t wxMBConvUTF8::ToWChar(wchar_t *buf, size_t n, size_t len = 0; - while ((srcLen == wxNO_LEN ? *psz : srcLen--) && ((!buf) || (len < n))) + // The length can be either given explicitly or computed implicitly for the + // NUL-terminated strings. + const bool isNulTerminated = srcLen == wxNO_LEN; + while ((isNulTerminated ? *psz : srcLen--) && ((!buf) || (len < n))) { const char *opsz = psz; bool invalid = false; @@ -1364,10 +1369,17 @@ size_t wxMBConvUTF8::ToWChar(wchar_t *buf, size_t n, } } - if (srcLen == wxNO_LEN && buf && (len < n)) - *buf = 0; + if ( isNulTerminated ) + { + // Add the trailing NUL in this case if we have a large enough buffer. + if ( buf && (len < n) ) + *buf = 0; - return len + 1; + // And count it in any case. + len++; + } + + return len; } static inline bool isoctal(wchar_t wch) @@ -1645,7 +1657,7 @@ wxMBConvUTF16straight::FromWChar(char *dst, size_t dstLen, wxUint16 *outBuff = reinterpret_cast(dst); for ( size_t n = 0; n < srcLen; n++ ) { - wxUint16 cc[2]; + wxUint16 cc[2] = { 0 }; const size_t numChars = encode_utf16(*src++, cc); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; @@ -1728,7 +1740,7 @@ wxMBConvUTF16swap::FromWChar(char *dst, size_t dstLen, wxUint16 *outBuff = reinterpret_cast(dst); for ( const wchar_t *srcEnd = src + srcLen; src < srcEnd; src++ ) { - wxUint16 cc[2]; + wxUint16 cc[2] = { 0 }; const size_t numChars = encode_utf16(*src, cc); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; @@ -1812,7 +1824,7 @@ wxMBConvUTF32straight::ToWChar(wchar_t *dst, size_t dstLen, size_t outLen = 0; for ( size_t n = 0; n < inLen; n++ ) { - wxUint16 cc[2]; + wxUint16 cc[2] = { 0 }; const size_t numChars = encode_utf16(*inBuff++, cc); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; @@ -1890,7 +1902,7 @@ wxMBConvUTF32swap::ToWChar(wchar_t *dst, size_t dstLen, size_t outLen = 0; for ( size_t n = 0; n < inLen; n++, inBuff++ ) { - wxUint16 cc[2]; + wxUint16 cc[2] = { 0 }; const size_t numChars = encode_utf16(wxUINT32_SWAP_ALWAYS(*inBuff), cc); if ( numChars == wxCONV_FAILED ) return wxCONV_FAILED; @@ -2113,7 +2125,7 @@ public: virtual wxMBConv *Clone() const { - wxMBConv_iconv *p = new wxMBConv_iconv(m_name.ToAscii()); + wxMBConv_iconv *p = new wxMBConv_iconv(m_name); p->m_minMBCharWidth = m_minMBCharWidth; return p; } @@ -2143,7 +2155,7 @@ private: // name of the encoding handled by this conversion - wxString m_name; + const char *m_name; // cached result of GetMBNulLen(); set to 0 meaning "unknown" // initially @@ -2167,7 +2179,7 @@ wxString wxMBConv_iconv::ms_wcCharsetName; bool wxMBConv_iconv::ms_wcNeedsSwap = false; wxMBConv_iconv::wxMBConv_iconv(const char *name) - : m_name(name) + : m_name(wxStrdup(name)) { m_minMBCharWidth = 0; @@ -2183,7 +2195,7 @@ wxMBConv_iconv::wxMBConv_iconv(const char *name) { #if SIZEOF_WCHAR_T == 4 wxT("UCS-4"), -#elif SIZEOF_WCHAR_T = 2 +#elif SIZEOF_WCHAR_T == 2 wxT("UCS-2"), #endif NULL @@ -2284,6 +2296,8 @@ wxMBConv_iconv::wxMBConv_iconv(const char *name) wxMBConv_iconv::~wxMBConv_iconv() { + free(const_cast(m_name)); + if ( m2w != ICONV_T_INVALID ) iconv_close(m2w); if ( w2m != ICONV_T_INVALID ) @@ -2943,7 +2957,41 @@ void wxCSConv::Init() { m_name = NULL; m_convReal = NULL; - m_deferred = true; +} + +void wxCSConv::SetEncoding(wxFontEncoding encoding) +{ + switch ( encoding ) + { + case wxFONTENCODING_MAX: + case wxFONTENCODING_SYSTEM: + if ( m_name ) + { + // It's ok to not have encoding value if we have a name for it. + m_encoding = wxFONTENCODING_SYSTEM; + } + else // No name neither. + { + // Fall back to the system default encoding in this case (not + // sure how much sense does this make but this is how the old + // code used to behave). +#if wxUSE_INTL + m_encoding = wxLocale::GetSystemEncoding(); + if ( m_encoding == wxFONTENCODING_SYSTEM ) +#endif // wxUSE_INTL + m_encoding = wxFONTENCODING_ISO8859_1; + } + break; + + case wxFONTENCODING_DEFAULT: + // wxFONTENCODING_DEFAULT is same as US-ASCII in this context + m_encoding = wxFONTENCODING_ISO8859_1; + break; + + default: + // Just use the provided encoding. + m_encoding = encoding; + } } wxCSConv::wxCSConv(const wxString& charset) @@ -2956,20 +3004,12 @@ wxCSConv::wxCSConv(const wxString& charset) } #if wxUSE_FONTMAP - m_encoding = wxFontMapperBase::GetEncodingFromName(charset); - if ( m_encoding == wxFONTENCODING_MAX ) - { - // set to unknown/invalid value - m_encoding = wxFONTENCODING_SYSTEM; - } - else if ( m_encoding == wxFONTENCODING_DEFAULT ) - { - // wxFONTENCODING_DEFAULT is same as US-ASCII in this context - m_encoding = wxFONTENCODING_ISO8859_1; - } + SetEncoding(wxFontMapperBase::GetEncodingFromName(charset)); #else - m_encoding = wxFONTENCODING_SYSTEM; + SetEncoding(wxFONTENCODING_SYSTEM); #endif + + m_convReal = DoCreate(); } wxCSConv::wxCSConv(wxFontEncoding encoding) @@ -2983,7 +3023,9 @@ wxCSConv::wxCSConv(wxFontEncoding encoding) Init(); - m_encoding = encoding; + SetEncoding(encoding); + + m_convReal = DoCreate(); } wxCSConv::~wxCSConv() @@ -2997,7 +3039,9 @@ wxCSConv::wxCSConv(const wxCSConv& conv) Init(); SetName(conv.m_name); - m_encoding = conv.m_encoding; + SetEncoding(conv.m_encoding); + + m_convReal = DoCreate(); } wxCSConv& wxCSConv::operator=(const wxCSConv& conv) @@ -3005,7 +3049,9 @@ wxCSConv& wxCSConv::operator=(const wxCSConv& conv) Clear(); SetName(conv.m_name); - m_encoding = conv.m_encoding; + SetEncoding(conv.m_encoding); + + m_convReal = DoCreate(); return *this; } @@ -3013,18 +3059,15 @@ wxCSConv& wxCSConv::operator=(const wxCSConv& conv) void wxCSConv::Clear() { free(m_name); - wxDELETE(m_convReal); - m_name = NULL; + + wxDELETE(m_convReal); } void wxCSConv::SetName(const char *charset) { - if (charset) - { + if ( charset ) m_name = wxStrdup(charset); - m_deferred = true; - } } #if wxUSE_FONTMAP @@ -3047,8 +3090,7 @@ wxMBConv *wxCSConv::DoCreate() const // check for the special case of ASCII or ISO8859-1 charset: as we have // special knowledge of it anyhow, we don't need to create a special // conversion object - if ( m_encoding == wxFONTENCODING_ISO8859_1 || - m_encoding == wxFONTENCODING_DEFAULT ) + if ( m_encoding == wxFONTENCODING_ISO8859_1 ) { // don't convert at all return NULL; @@ -3223,33 +3265,8 @@ wxMBConv *wxCSConv::DoCreate() const return NULL; } -void wxCSConv::CreateConvIfNeeded() const -{ - if ( m_deferred ) - { - wxCSConv *self = (wxCSConv *)this; // const_cast - - // if we don't have neither the name nor the encoding, use the default - // encoding for this system - if ( !m_name && m_encoding == wxFONTENCODING_SYSTEM ) - { -#if wxUSE_INTL - self->m_encoding = wxLocale::GetSystemEncoding(); -#else - // fallback to some reasonable default: - self->m_encoding = wxFONTENCODING_ISO8859_1; -#endif // wxUSE_INTL - } - - self->m_convReal = DoCreate(); - self->m_deferred = false; - } -} - bool wxCSConv::IsOk() const { - CreateConvIfNeeded(); - // special case: no convReal created for wxFONTENCODING_ISO8859_1 if ( m_encoding == wxFONTENCODING_ISO8859_1 ) return true; // always ok as we do it ourselves @@ -3262,8 +3279,6 @@ bool wxCSConv::IsOk() const size_t wxCSConv::ToWChar(wchar_t *dst, size_t dstLen, const char *src, size_t srcLen) const { - CreateConvIfNeeded(); - if (m_convReal) return m_convReal->ToWChar(dst, dstLen, src, srcLen); @@ -3286,8 +3301,6 @@ size_t wxCSConv::ToWChar(wchar_t *dst, size_t dstLen, size_t wxCSConv::FromWChar(char *dst, size_t dstLen, const wchar_t *src, size_t srcLen) const { - CreateConvIfNeeded(); - if (m_convReal) return m_convReal->FromWChar(dst, dstLen, src, srcLen); @@ -3323,12 +3336,8 @@ size_t wxCSConv::FromWChar(char *dst, size_t dstLen, size_t wxCSConv::GetMBNulLen() const { - CreateConvIfNeeded(); - if ( m_convReal ) - { return m_convReal->GetMBNulLen(); - } // otherwise, we are ISO-8859-1 return 1; @@ -3337,12 +3346,8 @@ size_t wxCSConv::GetMBNulLen() const #if wxUSE_UNICODE_UTF8 bool wxCSConv::IsUTF8() const { - CreateConvIfNeeded(); - if ( m_convReal ) - { return m_convReal->IsUTF8(); - } // otherwise, we are ISO-8859-1 return false; @@ -3441,8 +3446,9 @@ WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent = wxGet_wxConvLibcPtr(); WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvUI = wxGet_wxConvLocalPtr(); #ifdef __DARWIN__ -// The xnu kernel always communicates file paths in decomposed UTF-8. -// WARNING: Are we sure that CFString's conversion will cause decomposition? +// It is important to use this conversion object under Darwin as it ensures +// that Unicode strings are (re)composed correctly even though xnu kernel uses +// decomposed form internally (at least for the file names). static wxMBConv_cf wxConvMacUTF8DObj(wxFONTENCODING_UTF8); #endif