X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2049ba38adafa0ec146880de29f26e32dd69a125..95dee6514a24c2958b9571eb1c1a44ad3aad7a9e:/src/common/textfile.cpp diff --git a/src/common/textfile.cpp b/src/common/textfile.cpp index 4347c0618b..c70d51d278 100644 --- a/src/common/textfile.cpp +++ b/src/common/textfile.cpp @@ -2,7 +2,7 @@ // Name: textfile.cpp // Purpose: implementation of wxTextFile class // Author: Vadim Zeitlin -// Modified by: +// Modified by: // Created: 03.04.98 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin @@ -36,19 +36,17 @@ // ---------------------------------------------------------------------------- // static variables // ---------------------------------------------------------------------------- - + // default type is the native one -const wxTextFile::Type wxTextFile::typeDefault = wxTextFile:: -#if defined(__WXMSW__) - Type_Dos; +const wxTextFileType wxTextFile::typeDefault = +#if defined(__WINDOWS__) + wxTextFileType_Dos; #elif defined(__UNIX__) - Type_Unix; -#elif defined(__MAC__) - Type_Mac; - // if you feel brave, remove the next line - #error "wxTextFile: code for Mac files is untested." + wxTextFileType_Unix; +#elif defined(__WXMAC__) + wxTextFileType_Mac; #else - Type_None; + wxTextFileType_None; #error "wxTextFile: unsupported platform." #endif @@ -73,6 +71,7 @@ wxTextFile::~wxTextFile() bool wxTextFile::Open(const wxString& strFile) { m_strFile = strFile; + return Open(); } @@ -95,29 +94,30 @@ bool wxTextFile::Open() // analyse some lines of the file trying to guess it's type. // if it fails, it assumes the native type for our platform. -wxTextFile::Type wxTextFile::GuessType() const +wxTextFileType wxTextFile::GuessType() const { // file should be opened and we must be in it's beginning wxASSERT( m_file.IsOpened() && m_file.Tell() == 0 ); // scan the file lines - uint nUnix = 0, // number of '\n's alone + size_t nUnix = 0, // number of '\n's alone 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) - uint nCount = m_aLines.Count() / 3, + size_t nCount = m_aLines.Count() / 3, nScan = nCount > 3*MAX_LINES_SCAN ? MAX_LINES_SCAN : nCount / 3; #define AnalyseLine(n) \ switch ( m_aTypes[n] ) { \ - case Type_Unix: nUnix++; break; \ - case Type_Dos: nDos++; break; \ - case Type_Mac: nMac++; break; \ + case wxTextFileType_Unix: nUnix++; break; \ + case wxTextFileType_Dos: nDos++; break; \ + case wxTextFileType_Mac: nMac++; break; \ + default: wxFAIL_MSG(_("unknown line terminator")); \ } - uint n; + size_t n; for ( n = 0; n < nScan; n++ ) // the beginning AnalyseLine(n); for ( n = (nCount - nScan)/2; n < (nCount + nScan)/2; n++ ) @@ -130,21 +130,25 @@ wxTextFile::Type wxTextFile::GuessType() const // interpret the results (@@ far from being even 50% fool proof) if ( nDos + nUnix + nMac == 0 ) { // no newlines at all - wxLogWarning("'%s' is probably a binary file.", m_strFile.c_str()); + wxLogWarning(_("'%s' is probably a binary file."), m_strFile.c_str()); } else { #define GREATER_OF(t1, t2) n##t1 == n##t2 ? typeDefault \ - : n##t1 > n##t2 ? Type_##t1 \ - : Type_##t2 + : n##t1 > n##t2 \ + ? wxTextFileType_##t1 \ + : wxTextFileType_##t2 + // Watcom C++ doesn't seem to be able to handle the macro +#if !defined(__WATCOMC__) if ( nDos > nUnix ) return GREATER_OF(Dos, Mac); else if ( nDos < nUnix ) return GREATER_OF(Unix, Mac); else { // nDos == nUnix - return nMac > nDos ? Type_Mac : typeDefault; + return nMac > nDos ? wxTextFileType_Mac : typeDefault; } +#endif // __WATCOMC__ #undef GREATER_OF } @@ -159,75 +163,103 @@ bool wxTextFile::Read() wxString str; char ch, chLast = '\0'; + char buf[1024]; + int n, nRead; while ( !m_file.Eof() ) { - // @@ should really use a buffer for efficiency - if ( m_file.Read(&ch, sizeof(ch)) == ofsInvalid ) { - // read error + nRead = m_file.Read(buf, WXSIZEOF(buf)); + if ( nRead == wxInvalidOffset ) { + // read error (error message already given in wxFile::Read) m_file.Close(); return FALSE; } - #ifdef __MAC__ - #pragma message("wxTextFile::Read() hasn't been tested with Mac files.") - #endif - - switch ( ch ) { - case '\n': - // Dos/Unix line termination - m_aLines.Add(str); - m_aTypes.Add(chLast == '\r' ? Type_Dos : Type_Unix); - str.Empty(); - chLast = '\n'; - break; - - case '\r': - if ( chLast == '\r' ) { - // Mac empty line - m_aLines.Add(""); - m_aTypes.Add(Type_Mac); - } - else - chLast = '\r'; - break; - - default: - if ( chLast == '\r' ) { - // Mac line termination + for ( n = 0; n < nRead; n++ ) { + ch = buf[n]; + switch ( ch ) { + case '\n': + // Dos/Unix line termination m_aLines.Add(str); - m_aTypes.Add(Type_Mac); - str = ch; - } - else { - // add to the current line - str += ch; - } + m_aTypes.Add(chLast == '\r' ? wxTextFileType_Dos + : wxTextFileType_Unix); + str.Empty(); + chLast = '\n'; + break; + + case '\r': + if ( chLast == '\r' ) { + // Mac empty line + m_aLines.Add(""); + m_aTypes.Add(wxTextFileType_Mac); + } + else + chLast = '\r'; + break; + + default: + if ( chLast == '\r' ) { + // Mac line termination + m_aLines.Add(str); + m_aTypes.Add(wxTextFileType_Mac); + chLast = ch; + str = ch; + } + else { + // add to the current line + str += ch; + } + } } } // anything in the last line? if ( !str.IsEmpty() ) { - m_aTypes.Add(Type_None); // no line terminator + m_aTypes.Add(wxTextFileType_None); // no line terminator m_aLines.Add(str); } return TRUE; } -bool wxTextFile::Write(Type typeNew) +bool wxTextFile::Close() +{ + m_aTypes.Clear(); + m_aLines.Clear(); + m_nCurLine = 0; + + return TRUE; +} + +bool wxTextFile::Write(wxTextFileType typeNew) { wxTempFile fileTmp(m_strFile); if ( !fileTmp.IsOpened() ) { - wxLogError("can't write file '%s' to disk.", m_strFile.c_str()); + wxLogError(_("can't write file '%s' to disk."), m_strFile.c_str()); return FALSE; } - uint nCount = m_aLines.Count(); - for ( uint n = 0; n < nCount; n++ ) { - fileTmp.Write(m_aLines[n] + - GetEOL(typeNew == Type_None ? m_aTypes[n] : typeNew)); + size_t nCount = m_aLines.Count(); + for ( size_t n = 0; n < nCount; n++ ) { + fileTmp.Write(m_aLines[n] + + GetEOL(typeNew == wxTextFileType_None ? m_aTypes[n] + : typeNew)); } // replace the old file with this one return fileTmp.Commit(); -} \ No newline at end of file +} + +const wxChar *wxTextFile::GetEOL(wxTextFileType type) + { + switch ( type ) { + case wxTextFileType_None: return _T(""); + case wxTextFileType_Unix: return _T("\n"); + case wxTextFileType_Dos: return _T("\r\n"); + case wxTextFileType_Mac: return _T("\r"); + + default: + wxFAIL_MSG(_T("bad file type in wxTextFile::GetEOL.")); + return (const wxChar *) NULL; + } + } +