X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c23894955325535bf603be74a3c0dc8d3fce65ab..878711c01c1b9ad5b97d35f379a048b8ce1bfb49:/src/common/textfile.cpp diff --git a/src/common/textfile.cpp b/src/common/textfile.cpp index 2e6ad8bdd9..219b1b26f7 100644 --- a/src/common/textfile.cpp +++ b/src/common/textfile.cpp @@ -1,12 +1,12 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: textfile.cpp +// Name: src/common/textfile.cpp // Purpose: implementation of wxTextFile class // Author: Vadim Zeitlin // Modified by: // Created: 03.04.98 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin -// Licence: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -14,244 +14,200 @@ // ============================================================================ #ifdef __GNUG__ -#pragma implementation "textfile.h" + #pragma implementation "textfile.h" #endif #include "wx/wxprec.h" #ifdef __BORLANDC__ - #pragma hdrstop + #pragma hdrstop #endif //__BORLANDC__ -#include -#include -#include -#include -#include +#if !wxUSE_FILE || !wxUSE_TEXTBUFFER + #undef wxUSE_TEXTFILE + #define wxUSE_TEXTFILE 0 +#endif // wxUSE_FILE -// ============================================================================ -// wxTextFile class implementation -// ============================================================================ - -// ---------------------------------------------------------------------------- -// static variables -// ---------------------------------------------------------------------------- +#if wxUSE_TEXTFILE -// default type is the native one -const wxTextFileType wxTextFile::typeDefault = -#if defined(__WINDOWS__) - wxTextFileType_Dos; -#elif defined(__UNIX__) - wxTextFileType_Unix; -#elif defined(__WXMAC__) - wxTextFileType_Mac; -#else - wxTextFileType_None; - #error "wxTextFile: unsupported platform." +#ifndef WX_PRECOMP + #include "wx/string.h" + #include "wx/intl.h" + #include "wx/file.h" + #include "wx/log.h" #endif +#include "wx/textfile.h" +#include "wx/filename.h" -// ---------------------------------------------------------------------------- -// ctors & dtor -// ---------------------------------------------------------------------------- +// ============================================================================ +// wxTextFile class implementation +// ============================================================================ -wxTextFile::wxTextFile(const wxString& strFile) : m_strFile(strFile) +wxTextFile::wxTextFile(const wxString& strFileName) + : wxTextBuffer(strFileName) { } -wxTextFile::~wxTextFile() -{ - // m_file dtor called automatically -} // ---------------------------------------------------------------------------- // file operations // ---------------------------------------------------------------------------- -bool wxTextFile::Open(const wxString& strFile) +bool wxTextFile::OnExists() const { - m_strFile = strFile; - return Open(); + return wxFile::Exists(m_strBufferName); } -bool wxTextFile::Open() + +bool wxTextFile::OnOpen(const wxString &strBufferName, wxTextBufferOpenMode OpenMode) { - // file name must be either given in ctor or in Open(const wxString&) - wxASSERT( !m_strFile.IsEmpty() ); + wxFile::OpenMode FileOpenMode; - // open file in read-only mode - if ( !m_file.Open(m_strFile) ) - return FALSE; + switch ( OpenMode ) + { + default: + wxFAIL_MSG( _T("unknown open mode in wxTextFile::Open") ); + // fall through - // read file into memory - bool bRet = Read(); + case ReadAccess : + FileOpenMode = wxFile::read; + break; - m_file.Close(); + case WriteAccess : + FileOpenMode = wxFile::write; + break; + } - return bRet; + return m_file.Open(strBufferName.c_str(), FileOpenMode); } -// analyse some lines of the file trying to guess it's type. -// if it fails, it assumes the native type for our platform. -wxTextFileType wxTextFile::GuessType() const + +bool wxTextFile::OnClose() { - // file should be opened and we must be in it's beginning - wxASSERT( m_file.IsOpened() && m_file.Tell() == 0 ); - - // 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 - - // we take MAX_LINES_SCAN in the beginning, middle and the end of file - #define MAX_LINES_SCAN (10) - 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 wxTextFileType_Unix: nUnix++; break; \ - case wxTextFileType_Dos: nDos++; break; \ - case wxTextFileType_Mac: nMac++; break; \ - default: wxFAIL_MSG(_("unknown line terminator")); \ - } + return m_file.Close(); +} - size_t n; - for ( n = 0; n < nScan; n++ ) // the beginning - AnalyseLine(n); - for ( n = (nCount - nScan)/2; n < (nCount + nScan)/2; n++ ) - AnalyseLine(n); - for ( n = nCount - nScan; n < nCount; n++ ) - AnalyseLine(n); - - #undef AnalyseLine - - // 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()); - } - else { - #define GREATER_OF(t1, t2) n##t1 == n##t2 ? typeDefault \ - : n##t1 > n##t2 \ - ? wxTextFileType_##t1 \ - : wxTextFileType_##t2 - -// Watcom C++ doesn't seem to be able to handle the macro -#if defined(__WATCOMC__) - return typeDefault; -#else - if ( nDos > nUnix ) - return GREATER_OF(Dos, Mac); - else if ( nDos < nUnix ) - return GREATER_OF(Unix, Mac); - else { - // nDos == nUnix - return nMac > nDos ? wxTextFileType_Mac : typeDefault; - } -#endif - #undef GREATER_OF - } +bool wxTextFile::OnRead(wxMBConv& conv) +{ + // file should be opened and we must be in it's beginning + wxASSERT( m_file.IsOpened() && m_file.Tell() == 0 ); + + char *strBuf, *strPtr, *strEnd; + char ch, chLast = '\0'; + char buf[1024]; + int n, nRead; + + strPtr = strBuf = new char[1024]; + strEnd = strBuf + 1024; + + do + { + nRead = m_file.Read(buf, WXSIZEOF(buf)); + if ( nRead == wxInvalidOffset ) + { + // read error (error message already given in wxFile::Read) + delete[] strBuf; + return FALSE; + } + + for (n = 0; n < nRead; n++) + { + ch = buf[n]; + switch ( ch ) + { + case '\n': + // Dos/Unix line termination + *strPtr = '\0'; + AddLine(wxString(strBuf, conv), + chLast == '\r' ? wxTextFileType_Dos + : wxTextFileType_Unix); + strPtr = strBuf; + chLast = '\n'; + break; + + case '\r': + if ( chLast == '\r' ) + { + // Mac empty line + AddLine(wxEmptyString, wxTextFileType_Mac); + } + else + chLast = '\r'; + break; + + default: + if ( chLast == '\r' ) + { + // Mac line termination + *strPtr = '\0'; + AddLine(wxString(strBuf, conv), wxTextFileType_Mac); + chLast = ch; + strPtr = strBuf; + *(strPtr++) = ch; + } + else + { + // add to the current line + *(strPtr++) = ch; + if ( strPtr == strEnd ) + { + // we must allocate more memory + size_t size = strEnd - strBuf; + char *newBuf = new char[size + 1024]; + memcpy(newBuf, strBuf, size); + delete[] strBuf; + strBuf = newBuf; + strEnd = strBuf + size + 1024; + strPtr = strBuf + size; + } + } + } + } + } while ( nRead == WXSIZEOF(buf) ); + + // anything in the last line? + if ( strPtr != strBuf ) + { + *strPtr = '\0'; + AddLine(wxString(strBuf, conv), + wxTextFileType_None); // no line terminator + } - return typeDefault; + delete[] strBuf; + return TRUE; } -bool wxTextFile::Read() + +bool wxTextFile::OnWrite(wxTextFileType typeNew, wxMBConv& conv) { - // file should be opened and we must be in it's beginning - wxASSERT( m_file.IsOpened() && m_file.Tell() == 0 ); - - wxString str; - char ch, chLast = '\0'; - char buf[1024]; - int n, nRead; - while ( !m_file.Eof() ) { - nRead = m_file.Read(buf, WXSIZEOF(buf)); - if ( nRead == wxInvalidOffset ) { - // read error (error message already given in wxFile::Read) - m_file.Close(); - return FALSE; - } + wxFileName fn = m_strBufferName; - for ( n = 0; n < nRead; n++ ) { - ch = buf[n]; - switch ( ch ) { - case '\n': - // Dos/Unix line termination - m_aLines.Add(str); - 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; + // We do NOT want wxPATH_NORM_CASE here, or the case will not + // be preserved. + if ( !fn.IsAbsolute() ) + fn.Normalize(wxPATH_NORM_ENV_VARS | wxPATH_NORM_DOTS | wxPATH_NORM_TILDE | + wxPATH_NORM_ABSOLUTE | wxPATH_NORM_LONG); - 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; - } - } - } - } + wxTempFile fileTmp(fn.GetFullPath()); - // anything in the last line? - if ( !str.IsEmpty() ) { - m_aTypes.Add(wxTextFileType_None); // no line terminator - m_aLines.Add(str); - } + if ( !fileTmp.IsOpened() ) { + wxLogError(_("can't write buffer '%s' to disk."), m_strBufferName.c_str()); + return FALSE; + } - return TRUE; -} + size_t nCount = GetLineCount(); + for ( size_t n = 0; n < nCount; n++ ) { + fileTmp.Write(GetLine(n) + + GetEOL(typeNew == wxTextFileType_None ? GetLineType(n) + : typeNew), + conv); + } -bool wxTextFile::Write(wxTextFileType typeNew) -{ - wxTempFile fileTmp(m_strFile); - - if ( !fileTmp.IsOpened() ) { - wxLogError(_("can't write file '%s' to disk."), m_strFile.c_str()); - return FALSE; - } - - 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(); + // replace the old file with this one + return fileTmp.Commit(); } -const char *wxTextFile::GetEOL(wxTextFileType type) - { - switch ( type ) { - case wxTextFileType_None: return ""; - case wxTextFileType_Unix: return "\n"; - case wxTextFileType_Dos: return "\r\n"; - case wxTextFileType_Mac: return "\r"; - - default: - wxFAIL_MSG("bad file type in wxTextFile::GetEOL."); - return (const char *) NULL; - } - } +#endif // wxUSE_TEXTFILE