///////////////////////////////////////////////////////////////////////////////
-// 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 <zeitlin@dptmaths.ens-cachan.fr>
-// Licence: wxWindows license
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
// headers
// ============================================================================
-#ifdef __GNUG__
-#pragma implementation "textfile.h"
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
+ #pragma implementation "textfile.h"
#endif
#include "wx/wxprec.h"
#ifdef __BORLANDC__
- #pragma hdrstop
+ #pragma hdrstop
#endif //__BORLANDC__
-#include <wx/string.h>
-#include <wx/intl.h>
-#include <wx/file.h>
-#include <wx/log.h>
-#include <wx/textfile.h>
+#if !wxUSE_FILE || !wxUSE_TEXTBUFFER
+ #undef wxUSE_TEXTFILE
+ #define wxUSE_TEXTFILE 0
+#endif // wxUSE_FILE
-// ============================================================================
-// wxTextFile class implementation
-// ============================================================================
+#if wxUSE_TEXTFILE
-// ----------------------------------------------------------------------------
-// static variables
-// ----------------------------------------------------------------------------
-
-// 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()
-{
- // file name must be either given in ctor or in Open(const wxString&)
- wxASSERT( !m_strFile.IsEmpty() );
-
- // open file in read-only mode
- if ( !m_file.Open(m_strFile) )
- return FALSE;
- // read file into memory
- bool bRet = Read();
+bool wxTextFile::OnOpen(const wxString &strBufferName, wxTextBufferOpenMode OpenMode)
+{
+ wxFile::OpenMode FileOpenMode;
- m_file.Close();
+ switch ( OpenMode )
+ {
+ default:
+ wxFAIL_MSG( _T("unknown open mode in wxTextFile::Open") );
+ // fall through
- return bRet;
-}
+ case ReadAccess :
+ FileOpenMode = wxFile::read;
+ break;
-// 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
-{
- // 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")); \
+ case WriteAccess :
+ FileOpenMode = wxFile::write;
+ break;
}
- 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__)
- 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 // __WATCOMC__
+ return m_file.Open(strBufferName.c_str(), FileOpenMode);
+}
- #undef GREATER_OF
- }
- return typeDefault;
+bool wxTextFile::OnClose()
+{
+ return m_file.Close();
}
-bool wxTextFile::Read()
+
+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 );
-
- 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;
+ // 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];
+ size_t nRead;
+
+ strPtr = strBuf = new char[1024];
+ strEnd = strBuf + 1024;
+
+ do
+ {
+ nRead = m_file.Read(buf, WXSIZEOF(buf));
+ if ( nRead == (size_t)wxInvalidOffset )
+ {
+ // read error (error message already given in wxFile::Read)
+ delete[] strBuf;
+ return false;
+ }
+
+ for (size_t 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
}
- 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;
+ delete[] strBuf;
+ return true;
+}
- 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(wxTextFileType_None); // no line terminator
- m_aLines.Add(str);
- }
+bool wxTextFile::OnWrite(wxTextFileType typeNew, wxMBConv& conv)
+{
+ wxFileName fn = m_strBufferName;
- return TRUE;
-}
+ // 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);
-bool wxTextFile::Close()
-{
- m_aTypes.Clear();
- m_aLines.Clear();
- m_nCurLine = 0;
+ wxTempFile fileTmp(fn.GetFullPath());
- return TRUE;
-}
+ if ( !fileTmp.IsOpened() ) {
+ wxLogError(_("can't write buffer '%s' to disk."), m_strBufferName.c_str());
+ return false;
+ }
-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();
+ size_t nCount = GetLineCount();
+ for ( size_t n = 0; n < nCount; n++ ) {
+ fileTmp.Write(GetLine(n) +
+ GetEOL(typeNew == wxTextFileType_None ? GetLineType(n)
+ : typeNew),
+ conv);
+ }
+
+ // 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
projects / wxWidgets.git / blobdiff