X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/717b9bf234a20c491e0c9ee8f2c1bffad56a59c5..8c5b1f0faff5b26bc9b2d9052069e951e7b41c74:/src/common/textfile.cpp diff --git a/src/common/textfile.cpp b/src/common/textfile.cpp index 174cde4d30..ff284db484 100644 --- a/src/common/textfile.cpp +++ b/src/common/textfile.cpp @@ -64,23 +64,26 @@ const wxChar *wxTextFile::GetEOL(wxTextFileType type) { switch ( type ) { default: - wxFAIL_MSG(_T("bad file type in wxTextFile::GetEOL.")); + wxFAIL_MSG(wxT("bad file type in wxTextFile::GetEOL.")); // fall through nevertheless - we must return something... - case wxTextFileType_None: return _T(""); - case wxTextFileType_Unix: return _T("\n"); - case wxTextFileType_Dos: return _T("\r\n"); - case wxTextFileType_Mac: return _T("\r"); + case wxTextFileType_None: return wxT(""); + case wxTextFileType_Unix: return wxT("\n"); + case wxTextFileType_Dos: return wxT("\r\n"); + case wxTextFileType_Mac: return wxT("\r"); } } - wxString wxTextFile::Translate(const wxString& text, wxTextFileType type) { // don't do anything if there is nothing to do if ( type == wxTextFileType_None ) return text; + // GRG: don't do anything either if it is empty + if ( text.IsEmpty() ) + return text; + wxString eol = GetEOL(type), result; // optimization: we know that the length of the new string will be about @@ -93,34 +96,44 @@ wxString wxTextFile::Translate(const wxString& text, wxTextFileType type) { wxChar ch = *pc; switch ( ch ) { - case '\n': + case _T('\n'): // Dos/Unix line termination result += eol; - chLast = '\n'; + chLast = 0; break; - case '\r': - if ( chLast == '\r' ) { + case _T('\r'): + if ( chLast == _T('\r') ) { // Mac empty line result += eol; } - else - chLast = '\r'; + else { + // just remember it: we don't know whether it is just "\r" + // or "\r\n" yet + chLast = _T('\r'); + } break; default: - if ( chLast == '\r' ) { + if ( chLast == _T('\r') ) { // Mac line termination result += eol; - chLast = ch; - } - else { - // add to the current line - result += ch; + + // reset chLast to avoid inserting another eol before the + // next character + chLast = 0; } + + // add to the current line + result += ch; } } + if ( chLast ) { + // trailing '\r' + result += eol; + } + return result; } @@ -145,14 +158,45 @@ wxTextFile::~wxTextFile() // file operations // ---------------------------------------------------------------------------- -bool wxTextFile::Open(const wxString& strFile) +bool wxTextFile::Exists() const +{ + return wxFile::Exists(m_strFile); +} + +bool wxTextFile::Create(const wxString& strFile) +{ + m_strFile = strFile; + + return Create(); +} + +bool wxTextFile::Create() +{ + // file name must be either given in ctor or in Create(const wxString&) + wxASSERT( !m_strFile.IsEmpty() ); + + // if the file already exists do nothing + if ( Exists() ) return FALSE; + + if ( m_file.Open(m_strFile, wxFile::write) ) + { + m_file.Close(); + return TRUE; + } + else + { + return FALSE; + } +} + +bool wxTextFile::Open(const wxString& strFile, wxMBConv& conv) { m_strFile = strFile; - return Open(); + return Open(conv); } -bool wxTextFile::Open() +bool wxTextFile::Open(wxMBConv& conv) { // file name must be either given in ctor or in Open(const wxString&) wxASSERT( !m_strFile.IsEmpty() ); @@ -162,7 +206,7 @@ bool wxTextFile::Open() return FALSE; // read file into memory - m_isOpened = Read(); + m_isOpened = Read(conv); m_file.Close(); @@ -173,13 +217,12 @@ bool wxTextFile::Open() // if it fails, it assumes the native type for our platform. wxTextFileType wxTextFile::GuessType() const { - // file should be opened and we must be in it's beginning - wxASSERT( m_file.IsOpened() && m_file.Tell() == 0 ); + wxASSERT( IsOpened() ); // scan the file lines size_t nUnix = 0, // number of '\n's alone - nDos = 0, // number of '\r\n' - nMac = 0; // number of '\r's + nDos = 0, // number of '\r\n' + nMac = 0; // number of '\r's // we take MAX_LINES_SCAN in the beginning, middle and the end of file #define MAX_LINES_SCAN (10) @@ -205,7 +248,7 @@ wxTextFileType wxTextFile::GuessType() const #undef AnalyseLine // interpret the results (FIXME far from being even 50% fool proof) - if ( nDos + nUnix + nMac == 0 ) { + if ( nScan > 0 && nDos + nUnix + nMac == 0 ) { // no newlines at all wxLogWarning(_("'%s' is probably a binary file."), m_strFile.c_str()); } @@ -233,16 +276,24 @@ wxTextFileType wxTextFile::GuessType() const return typeDefault; } -bool wxTextFile::Read() +bool wxTextFile::Read(wxMBConv& conv) { // file should be opened and we must be in it's beginning wxASSERT( m_file.IsOpened() && m_file.Tell() == 0 ); +#if wxUSE_UNICODE + char conv_mbBuf[2]; + wchar_t conv_wcBuf[2]; + conv_mbBuf[1] = 0; +#else + (void)conv; +#endif + wxString str; char ch, chLast = '\0'; char buf[1024]; int n, nRead; - while ( !m_file.Eof() ) { + do { nRead = m_file.Read(buf, WXSIZEOF(buf)); if ( nRead == wxInvalidOffset ) { // read error (error message already given in wxFile::Read) @@ -264,7 +315,7 @@ bool wxTextFile::Read() case '\r': if ( chLast == '\r' ) { // Mac empty line - m_aLines.Add(""); + m_aLines.Add(wxEmptyString); m_aTypes.Add(wxTextFileType_Mac); } else @@ -277,15 +328,27 @@ bool wxTextFile::Read() m_aLines.Add(str); m_aTypes.Add(wxTextFileType_Mac); chLast = ch; +#if wxUSE_UNICODE + if (conv.MB2WC(conv_wcBuf, conv_mbBuf, 2) == (size_t)-1) + conv_wcBuf[0] = ch; + str = conv_wcBuf[0]; +#else str = ch; +#endif } else { // add to the current line +#if wxUSE_UNICODE + if (conv.MB2WC(conv_wcBuf, conv_mbBuf, 2) == (size_t)-1) + conv_wcBuf[0] = ch; + str += conv_wcBuf[0]; +#else str += ch; +#endif } } } - } + } while ( nRead == WXSIZEOF(buf) ); // anything in the last line? if ( !str.IsEmpty() ) { @@ -306,7 +369,7 @@ bool wxTextFile::Close() return TRUE; } -bool wxTextFile::Write(wxTextFileType typeNew) +bool wxTextFile::Write(wxTextFileType typeNew, wxMBConv& conv) { wxTempFile fileTmp(m_strFile); @@ -319,7 +382,7 @@ bool wxTextFile::Write(wxTextFileType typeNew) for ( size_t n = 0; n < nCount; n++ ) { fileTmp.Write(m_aLines[n] + GetEOL(typeNew == wxTextFileType_None ? m_aTypes[n] - : typeNew)); + : typeNew), conv); } // replace the old file with this one