--- /dev/null
+/**
+ * @file DiffTextBuffer.cpp
+ *
+ * @brief Implementation file for CDiffTextBuffer
+ *
+ */
+// ID line follows -- this is updated by SVN
+// $Id$
+
+#include "stdafx.h"
+#include "UniFile.h"
+#include "files.h"
+#include "cs2cs.h"
+#include "locality.h"
+#include "coretools.h"
+#include "Merge.h"
+#include "OptionsDef.h"
+#include "Environment.h"
+#include "MergeLineFlags.h"
+#include "MergeDoc.h"
+#include "FileTransform.h"
+#include "FileTextEncoding.h"
+#include "DiffTextBuffer.h"
+
+static int IsTextFileStylePure(const UniMemFile::txtstats & stats);
+static CString GetLineByteTimeReport(UINT lines, __int64 bytes,
+ const COleDateTime & start);
+static void EscapeControlChars(CString &s);
+static LPCTSTR getEol(const CString &str);
+static int GetTextFileStyle(const UniMemFile::txtstats & stats);
+
+/**
+ * @brief Examine statistics in textFileStats and tell if the file has only one EOL type
+ */
+static int IsTextFileStylePure(const UniMemFile::txtstats & stats)
+{
+ int nType = 0;
+ nType += (stats.ncrlfs > 0);
+ nType += (stats.ncrs > 0);
+ nType += (stats.nlfs > 0);
+ return (nType <= 1);
+}
+
+/**
+ * @brief Return a string giving #lines and #bytes and how much time elapsed.
+ * @param [in] lines Count of lines.
+ * @param [in] bytes Count of bytes.
+ * @param [in] start Time used.
+ * @return Formatted string.
+ */
+static CString GetLineByteTimeReport(UINT lines, __int64 bytes,
+ const COleDateTime & start)
+{
+ String sLines = locality::NumToLocaleStr((int)lines);
+ String sBytes = locality::NumToLocaleStr(bytes);
+ COleDateTimeSpan duration = COleDateTime::GetCurrentTime() - start;
+ String sMinutes = locality::NumToLocaleStr((int)duration.GetTotalMinutes());
+ CString str;
+ str.Format(_T("%s lines (%s byte) saved in %sm%02ds")
+ , sLines.c_str(), sBytes.c_str(), sMinutes.c_str()
+ , duration.GetSeconds()
+ );
+ return str;
+}
+
+/**
+ * @brief Escape control characters.
+ * @param [in,out] s Line of text excluding eol chars.
+ *
+ * @note Escape sequences follow the pattern
+ * (leadin character, high nibble, low nibble, leadout character).
+ * The leadin character is '\x0F'. The leadout character is a backslash.
+ */
+static void EscapeControlChars(CString &s)
+{
+ // Compute buffer length required for escaping
+ int n = s.GetLength();
+ LPCTSTR q = s;
+ int i = n;
+ while (i)
+ {
+ TCHAR c = q[--i];
+ // Is it a control character in the range 0..31 except TAB?
+ if (!(c & ~_T('\x1F')) && c != _T('\t'))
+ {
+ n += 3; // Need 3 extra characters to escape
+ }
+ }
+ // Reallocate accordingly
+ i = s.GetLength();
+ LPTSTR p = s.GetBufferSetLength(n);
+ // Copy/translate characters starting at end of string
+ while (i)
+ {
+ TCHAR c = p[--i];
+ // Is it a control character in the range 0..31 except TAB?
+ if (!(c & ~_T('\x1F')) && c != _T('\t'))
+ {
+ // Bitwise OR with 0x100 so _itot() will output 3 hex digits
+ _itot(0x100 | c, p + n - 4, 16);
+ // Replace terminating zero with leadout character
+ p[n - 1] = _T('\\');
+ // Prepare to replace 1st hex digit with leadin character
+ c = _T('\x0F');
+ n -= 3;
+ }
+ p[--n] = c;
+ }
+}
+
+/// Return pointer to the eol chars of this string, or pointer to empty string if none
+static LPCTSTR getEol(const CString &str)
+{
+ if (str.GetLength()>1 && str[str.GetLength()-2]=='\r' && str[str.GetLength()-1]=='\n')
+ return (LPCTSTR)str + str.GetLength()-2;
+ if (str.GetLength()>0 && (str[str.GetLength()-1]=='\r' || str[str.GetLength()-1]=='\n'))
+ return (LPCTSTR)str + str.GetLength()-1;
+ return _T("");
+}
+
+/**
+ * @brief Examine statistics in textFileStats and return a crystaltextbuffer enum value for line style
+ */
+static int GetTextFileStyle(const UniMemFile::txtstats & stats)
+{
+ if (stats.ncrlfs >= stats.nlfs)
+ {
+ if (stats.ncrlfs >= stats.ncrs)
+ {
+ return CRLF_STYLE_DOS;
+ }
+ else
+ {
+ return CRLF_STYLE_MAC;
+ }
+ }
+ else
+ {
+ if (stats.nlfs >= stats.ncrs)
+ {
+ return CRLF_STYLE_UNIX;
+ }
+ else
+ {
+ return CRLF_STYLE_MAC;
+ }
+ }
+}
+
+CDiffTextBuffer::CDiffTextBuffer(CMergeDoc * pDoc, int pane)
+: m_pOwnerDoc(pDoc)
+, m_nThisPane(pane)
+, unpackerSubcode(0)
+{
+}
+
+BOOL CDiffTextBuffer::GetLine(int nLineIndex, CString &strLine)
+{
+ int nLineLength = CCrystalTextBuffer::GetLineLength
+ ( nLineIndex );
+
+ if( nLineLength < 0 )
+ return FALSE;
+ else if( nLineLength == 0 )
+ strLine.Empty();
+ else
+ {
+ _tcsncpy ( strLine.GetBuffer( nLineLength + 1 ),
+ CCrystalTextBuffer::GetLineChars( nLineIndex ),
+ nLineLength );
+ strLine.ReleaseBuffer( nLineLength );
+ }
+ return TRUE;
+}
+
+void CDiffTextBuffer::SetModified(BOOL bModified /*= TRUE*/)
+{
+ CCrystalTextBuffer::SetModified (bModified);
+ m_pOwnerDoc->SetModifiedFlag (bModified);
+}
+
+BOOL CDiffTextBuffer::GetFullLine(int nLineIndex, CString &strLine)
+{
+ int cchText = GetFullLineLength(nLineIndex);
+ if (cchText == 0)
+ return FALSE;
+ LPTSTR pchText = strLine.GetBufferSetLength(cchText);
+ memcpy(pchText, GetLineChars(nLineIndex), cchText * sizeof(TCHAR));
+ return TRUE;
+}
+
+void CDiffTextBuffer::AddUndoRecord(BOOL bInsert, const CPoint & ptStartPos, const CPoint & ptEndPos, LPCTSTR pszText, int cchText, int nLinesToValidate, int nActionType /*= CE_ACTION_UNKNOWN*/, CDWordArray *paSavedRevisonNumbers)
+{
+ CGhostTextBuffer::AddUndoRecord(bInsert, ptStartPos, ptEndPos, pszText, cchText, nLinesToValidate, nActionType, paSavedRevisonNumbers);
+ if (m_aUndoBuf[m_nUndoPosition - 1].m_dwFlags & UNDO_BEGINGROUP)
+ {
+ m_pOwnerDoc->undoTgt.erase(m_pOwnerDoc->curUndo, m_pOwnerDoc->undoTgt.end());
+ m_pOwnerDoc->undoTgt.push_back(m_pOwnerDoc->GetView(m_nThisPane));
+ m_pOwnerDoc->curUndo = m_pOwnerDoc->undoTgt.end();
+ }
+}
+/**
+ * @brief Checks if a flag is set for line.
+ * @param [in] line Index (0-based) for line.
+ * @param [in] flag Flag to check.
+ * @return TRUE if flag is set, FALSE otherwise.
+ */
+BOOL CDiffTextBuffer::FlagIsSet(UINT line, DWORD flag)
+{
+ return ((m_aLines[line].m_dwFlags & flag) == flag);
+}
+
+
+/**
+Remove blank lines and clear winmerge flags
+(2003-06-21, Perry: I don't understand why this is necessary, but if this isn't
+done, more and more gray lines appear in the file)
+(2003-07-31, Laoran I don't understand either why it is necessary, but it works
+fine, so let's go on with it)
+*/
+void CDiffTextBuffer::prepareForRescan()
+{
+ RemoveAllGhostLines();
+ for(int ct=GetLineCount()-1; ct>=0; --ct)
+ {
+ SetLineFlag(ct, LF_DIFF, FALSE, FALSE, FALSE);
+ SetLineFlag(ct, LF_TRIVIAL, FALSE, FALSE, FALSE);
+ SetLineFlag(ct, LF_MOVED, FALSE, FALSE, FALSE);
+ }
+}
+
+
+void CDiffTextBuffer::OnNotifyLineHasBeenEdited(int nLine)
+{
+ SetLineFlag(nLine, LF_DIFF, FALSE, FALSE, FALSE);
+ SetLineFlag(nLine, LF_TRIVIAL, FALSE, FALSE, FALSE);
+ SetLineFlag(nLine, LF_MOVED, FALSE, FALSE, FALSE);
+ CGhostTextBuffer::OnNotifyLineHasBeenEdited(nLine);
+}
+
+/**
+ * @brief Helper to determine the most used CRLF mode in the file
+ * Normal call : determine the CRLF mode of the current line
+ * Final call : parameter lpLineBegin = NULL, return the style of the file
+ *
+ * @note The lowest CRL_STYLE has the priority in case of equality
+ */
+int CDiffTextBuffer::NoteCRLFStyleFromBuffer(TCHAR *lpLineBegin, DWORD dwLineLen /* =0 */)
+{
+ static int count[3] = {0};
+ int iStyle = -1;
+
+ // give back the result when we ask for it
+ if (lpLineBegin == NULL)
+ {
+ iStyle = 0;
+ if (count[1] > count[iStyle])
+ iStyle = 1;
+ if (count[2] > count[iStyle])
+ iStyle = 2;
+
+ // reset the counter for the next file
+ count[0] = count[1] = count[2] = 0;
+
+ return iStyle;
+ }
+
+ if (dwLineLen >= 1)
+ {
+ if (lpLineBegin[dwLineLen-1] == _T('\r'))
+ iStyle = CRLF_STYLE_MAC;
+ if (lpLineBegin[dwLineLen-1] == _T('\n'))
+ iStyle = CRLF_STYLE_UNIX;
+ }
+ if (dwLineLen >= 2)
+ {
+ if (lpLineBegin[dwLineLen-2] == _T('\r') && lpLineBegin[dwLineLen-1] == _T('\n'))
+ iStyle = CRLF_STYLE_DOS;
+ }
+ ASSERT (iStyle != -1);
+ count[iStyle] ++;
+ return iStyle;
+}
+
+/// Reads one line from filebuffer and inserts to textbuffer
+void CDiffTextBuffer::ReadLineFromBuffer(TCHAR *lpLineBegin, DWORD dwLineNum, DWORD dwLineLen /* =0 */)
+{
+ if (m_nSourceEncoding >= 0)
+ iconvert (lpLineBegin, m_nSourceEncoding, 1, m_nSourceEncoding == 15);
+ AppendLine(dwLineNum, lpLineBegin, dwLineLen);
+}
+
+/// Sets path for temporary files
+void CDiffTextBuffer::SetTempPath(String path)
+{
+ m_strTempPath = path;
+}
+
+bool CDiffTextBuffer::IsInitialized() const
+{
+ return !!m_bInit;
+}
+
+/**
+ * @brief Load file from disk into buffer
+ *
+ * @param [in] pszFileNameInit File to load
+ * @param [in] infoUnpacker Unpacker plugin
+ * @param [in] sToFindUnpacker String for finding unpacker plugin
+ * @param [out] readOnly Loading was lossy so file should be read-only
+ * @param [in] nCrlfStyle EOL style used
+ * @param [in] encoding Encoding used
+ * @param [out] sError Error message returned
+ * @return FRESULT_OK when loading succeed or (list in files.h):
+ * - FRESULT_OK_IMPURE : load OK, but the EOL are of different types
+ * - FRESULT_ERROR_UNPACK : plugin failed to unpack
+ * - FRESULT_ERROR : loading failed, sError contains error message
+ * - FRESULT_BINARY : file is binary file
+ * @note If this method fails, it calls InitNew so the CDiffTextBuffer is in a valid state
+ */
+int CDiffTextBuffer::LoadFromFile(LPCTSTR pszFileNameInit,
+ PackingInfo * infoUnpacker, LPCTSTR sToFindUnpacker, BOOL & readOnly,
+ int nCrlfStyle, const FileTextEncoding & encoding, CString &sError)
+{
+ ASSERT(!m_bInit);
+ ASSERT(m_aLines.GetSize() == 0);
+
+ // Unpacking the file here, save the result in a temporary file
+ String sFileName = pszFileNameInit;
+ if (infoUnpacker->bToBeScanned)
+ {
+ if (!FileTransform_Unpacking(sFileName, sToFindUnpacker, infoUnpacker, &unpackerSubcode))
+ {
+ InitNew(); // leave crystal editor in valid, empty state
+ return FileLoadResult::FRESULT_ERROR_UNPACK;
+ }
+ }
+ else
+ {
+ if (!FileTransform_Unpacking(sFileName, infoUnpacker, &unpackerSubcode))
+ {
+ InitNew(); // leave crystal editor in valid, empty state
+ return FileLoadResult::FRESULT_ERROR_UNPACK;
+ }
+ }
+ // we use the same unpacker for both files, so it must be defined after first file
+ ASSERT(infoUnpacker->bToBeScanned != PLUGIN_AUTO);
+ // we will load the transformed file
+ LPCTSTR pszFileName = sFileName.c_str();
+
+ String sExt;
+ DWORD nRetVal = FileLoadResult::FRESULT_OK;
+
+ // Set encoding based on extension, if we know one
+ SplitFilename(pszFileName, NULL, NULL, &sExt);
+ CCrystalTextView::TextDefinition *def =
+ CCrystalTextView::GetTextType(sExt.c_str());
+ if (def && def->encoding != -1)
+ m_nSourceEncoding = def->encoding;
+
+ UniFile *pufile = infoUnpacker->pufile;
+ if (pufile == 0)
+ pufile = new UniMemFile;
+
+ // Now we only use the UniFile interface
+ // which is something we could implement for HTTP and/or FTP files
+
+ if (!pufile->OpenReadOnly(pszFileName))
+ {
+ nRetVal = FileLoadResult::FRESULT_ERROR;
+ UniFile::UniError uniErr = pufile->GetLastUniError();
+ if (uniErr.hasError())
+ {
+ if (uniErr.apiname.IsEmpty())
+ sError = uniErr.desc;
+ else
+ sError = GetSysError(uniErr.syserrnum);
+ }
+ InitNew(); // leave crystal editor in valid, empty state
+ goto LoadFromFileExit;
+ }
+ else
+ {
+ // If the file is not unicode file, use the codepage we were given to
+ // interpret the 8-bit characters. If the file is unicode file,
+ // determine its type (IsUnicode() does that).
+ if (encoding.m_unicoding == ucr::NONE || !pufile->IsUnicode())
+ pufile->SetCodepage(encoding.m_codepage);
+ UINT lineno = 0;
+ CString eol, preveol;
+ CString sline;
+ bool done = false;
+ UINT next_line_report = 100; // for trace messages
+ UINT next_line_multiple = 5; // for trace messages
+ COleDateTime start = COleDateTime::GetCurrentTime(); // for trace messages
+
+ // Manually grow line array exponentially
+ UINT arraysize = 500;
+ m_aLines.SetSize(arraysize);
+
+ // preveol must be initialized for empty files
+ preveol = "\n";
+
+ do {
+ bool lossy=false;
+ done = !pufile->ReadString(sline, eol, &lossy);
+
+ // if last line had no eol, we can quit
+ if (done && preveol.IsEmpty())
+ break;
+ // but if last line had eol, we add an extra (empty) line to buffer
+
+ // Manually grow line array exponentially
+ if (lineno == arraysize)
+ {
+ arraysize *= 2;
+ m_aLines.SetSize(arraysize);
+ }
+
+ sline += eol; // TODO: opportunity for optimization, as CString append is terrible
+ if (lossy)
+ {
+ // TODO: Should record lossy status of line
+ }
+ AppendLine(lineno, sline, sline.GetLength());
+ ++lineno;
+ preveol = eol;
+
+#ifdef _DEBUG
+ // send occasional line counts to trace
+ // (at 100, 500, 1000, 5000, etc)
+ if (lineno == next_line_report)
+ {
+ __int64 dwBytesRead = pufile->GetPosition();
+ COleDateTimeSpan duration = COleDateTime::GetCurrentTime() - start;
+ if (duration.GetTotalMinutes() > 0)
+ {
+ CString strace = GetLineByteTimeReport(lineno, dwBytesRead, start);
+ TRACE(_T("%s\n"), (LPCTSTR)strace);
+ }
+ next_line_report = next_line_multiple * next_line_report;
+ next_line_multiple = (next_line_multiple == 5) ? 2 : 5;
+ }
+#endif // _DEBUG
+ } while (!done);
+
+#ifdef _DEBUG
+ // Send report of duration to trace (if it took a while)
+ COleDateTime end = COleDateTime::GetCurrentTime();
+ COleDateTimeSpan duration = end - start;
+ if (duration.GetTotalMinutes() > 0)
+ {
+ __int64 dwBytesRead = pufile->GetPosition();
+ CString strace = GetLineByteTimeReport(lineno, dwBytesRead, start);
+ TRACE(_T("%s\n"), (LPCTSTR)strace);
+ }
+#endif // _DEBUG
+
+ // fix array size (due to our manual exponential growth
+ m_aLines.SetSize(lineno);
+
+
+ //Try to determine current CRLF mode (most frequent)
+ if (nCrlfStyle == CRLF_STYLE_AUTOMATIC)
+ {
+ nCrlfStyle = GetTextFileStyle(pufile->GetTxtStats());
+ }
+ ASSERT(nCrlfStyle >= 0 && nCrlfStyle <= 2);
+ SetCRLFMode(nCrlfStyle);
+
+ // At least one empty line must present
+ // (view does not work for empty buffers)
+ ASSERT(m_aLines.GetSize() > 0);
+
+ m_bInit = TRUE;
+ m_bModified = FALSE;
+ m_bUndoGroup = m_bUndoBeginGroup = FALSE;
+ m_nUndoBufSize = 1024; // crystaltextbuffer.cpp - UNDO_BUF_SIZE;
+ m_nSyncPosition = m_nUndoPosition = 0;
+ ASSERT(m_aUndoBuf.GetSize() == 0);
+ m_ptLastChange.x = m_ptLastChange.y = -1;
+
+ FinishLoading();
+ // flags don't need initialization because 0 is the default value
+
+ // Set the return value : OK + info if the file is impure
+ // A pure file is a file where EOL are consistent (all DOS, or all UNIX, or all MAC)
+ // An impure file is a file with several EOL types
+ // WinMerge may display impure files, but the default option is to unify the EOL
+ // We return this info to the caller, so it may display a confirmation box
+ if (IsTextFileStylePure(pufile->GetTxtStats()))
+ nRetVal = FileLoadResult::FRESULT_OK;
+ else
+ nRetVal = FileLoadResult::FRESULT_OK_IMPURE;
+
+ // stash original encoding away
+ m_encoding.m_unicoding = pufile->GetUnicoding();
+ m_encoding.m_bom = pufile->HasBom();
+ m_encoding.m_codepage = pufile->GetCodepage();
+
+ if (pufile->GetTxtStats().nlosses)
+ {
+ FileLoadResult::AddModifier(nRetVal, FileLoadResult::FRESULT_LOSSY);
+ readOnly = TRUE;
+ }
+ }
+
+LoadFromFileExit:
+ // close the file now to free the handle
+ pufile->Close();
+ delete pufile;
+
+ // delete the file that unpacking may have created
+ if (_tcscmp(pszFileNameInit, pszFileName) != 0)
+ if (!::DeleteFile(pszFileName))
+ {
+ LogErrorString(Fmt(_T("DeleteFile(%s) failed: %s"),
+ pszFileName, GetSysError(GetLastError())));
+ }
+
+ return nRetVal;
+}
+
+/**
+ * @brief Saves file from buffer to disk
+ *
+ * @param bTempFile : FALSE if we are saving user files and
+ * TRUE if we are saving workin-temp-files for diff-engine
+ *
+ * @return SAVE_DONE or an error code (list in MergeDoc.h)
+ */
+int CDiffTextBuffer::SaveToFile (LPCTSTR pszFileName,
+ BOOL bTempFile, CString & sError, PackingInfo * infoUnpacker /*= NULL*/,
+ int nCrlfStyle /*= CRLF_STYLE_AUTOMATIC*/,
+ BOOL bClearModifiedFlag /*= TRUE*/ )
+{
+ ASSERT (nCrlfStyle == CRLF_STYLE_AUTOMATIC || nCrlfStyle == CRLF_STYLE_DOS ||
+ nCrlfStyle == CRLF_STYLE_UNIX || nCrlfStyle == CRLF_STYLE_MAC);
+ ASSERT (m_bInit);
+
+ if (!pszFileName || _tcslen(pszFileName) == 0)
+ return SAVE_FAILED; // No filename, cannot save...
+
+ if (nCrlfStyle == CRLF_STYLE_AUTOMATIC &&
+ !GetOptionsMgr()->GetBool(OPT_ALLOW_MIXED_EOL) ||
+ infoUnpacker && infoUnpacker->disallowMixedEOL)
+ {
+ // get the default nCrlfStyle of the CDiffTextBuffer
+ nCrlfStyle = GetCRLFMode();
+ ASSERT(nCrlfStyle >= 0 && nCrlfStyle <= 2);
+ }
+
+ BOOL bOpenSuccess = TRUE;
+ BOOL bSaveSuccess = FALSE;
+
+ UniStdioFile file;
+ file.SetUnicoding(m_encoding.m_unicoding);
+ file.SetBom(m_encoding.m_bom);
+ file.SetCodepage(m_encoding.m_codepage);
+
+ String sIntermediateFilename; // used when !bTempFile
+
+ if (bTempFile)
+ {
+ bOpenSuccess = !!file.OpenCreate(pszFileName);
+ }
+ else
+ {
+ sIntermediateFilename = env_GetTempFileName(m_strTempPath.c_str(),
+ _T("MRG_"), NULL);
+ if (sIntermediateFilename.empty())
+ return SAVE_FAILED; //Nothing to do if even tempfile name fails
+ bOpenSuccess = !!file.OpenCreate(sIntermediateFilename.c_str());
+ }
+
+ if (!bOpenSuccess)
+ {
+ UniFile::UniError uniErr = file.GetLastUniError();
+ if (uniErr.hasError())
+ {
+ if (uniErr.apiname.IsEmpty())
+ sError = uniErr.desc;
+ else
+ sError = GetSysError(uniErr.syserrnum);
+ if (bTempFile)
+ LogErrorString(Fmt(_T("Opening file %s failed: %s"),
+ pszFileName, sError));
+ else
+ LogErrorString(Fmt(_T("Opening file %s failed: %s"),
+ sIntermediateFilename, sError));
+ }
+ return SAVE_FAILED;
+ }
+
+ file.WriteBom();
+
+ // line loop : get each real line and write it in the file
+ CString sLine;
+ CString sEol = GetStringEol(nCrlfStyle);
+ int nLineCount = m_aLines.GetSize();
+ for (int line=0; line<nLineCount; ++line)
+ {
+ if (GetLineFlags(line) & LF_GHOST)
+ continue;
+
+ // get the characters of the line (excluding EOL)
+ if (GetLineLength(line) > 0)
+ GetText(line, 0, line, GetLineLength(line), sLine, 0);
+ else
+ sLine = _T("");
+
+ if (bTempFile)
+ EscapeControlChars(sLine);
+ // last real line ?
+ if (line == ApparentLastRealLine())
+ {
+ // last real line is never EOL terminated
+ ASSERT (_tcslen(GetLineEol(line)) == 0);
+ // write the line and exit loop
+ file.WriteString(sLine);
+ break;
+ }
+
+ // normal real line : append an EOL
+ if (nCrlfStyle == CRLF_STYLE_AUTOMATIC)
+ {
+ // either the EOL of the line (when preserve original EOL chars is on)
+ sLine += GetLineEol(line);
+ }
+ else
+ {
+ // or the default EOL for this file
+ sLine += sEol;
+ }
+
+ // write this line to the file (codeset or unicode conversions are done there)
+ file.WriteString(sLine);
+ }
+ file.Close();
+
+
+ if (!bTempFile)
+ {
+ // If we are saving user files
+ // we need an unpacker/packer, at least a "do nothing" one
+ ASSERT(infoUnpacker != NULL);
+ // repack the file here, overwrite the temporary file we did save in
+ String csTempFileName = sIntermediateFilename;
+ infoUnpacker->subcode = unpackerSubcode;
+ if (!FileTransform_Packing(csTempFileName, *infoUnpacker))
+ {
+ if (!::DeleteFile(sIntermediateFilename.c_str()))
+ {
+ LogErrorString(Fmt(_T("DeleteFile(%s) failed: %s"),
+ sIntermediateFilename.c_str(), GetSysError(GetLastError())));
+ }
+ // returns now, don't overwrite the original file
+ return SAVE_PACK_FAILED;
+ }
+ // the temp filename may have changed during packing
+ if (csTempFileName != sIntermediateFilename)
+ {
+ if (!::DeleteFile(sIntermediateFilename.c_str()))
+ {
+ LogErrorString(Fmt(_T("DeleteFile(%s) failed: %s"),
+ sIntermediateFilename.c_str(), GetSysError(GetLastError())));
+ }
+ sIntermediateFilename = csTempFileName;
+ }
+
+ // Write tempfile over original file
+ if (::CopyFile(sIntermediateFilename.c_str(), pszFileName, FALSE))
+ {
+ if (!::DeleteFile(sIntermediateFilename.c_str()))
+ {
+ LogErrorString(Fmt(_T("DeleteFile(%s) failed: %s"),
+ sIntermediateFilename.c_str(), GetSysError(GetLastError())));
+ }
+ if (bClearModifiedFlag)
+ {
+ SetModified(FALSE);
+ m_nSyncPosition = m_nUndoPosition;
+ }
+ bSaveSuccess = TRUE;
+
+ // remember revision number on save
+ m_dwRevisionNumberOnSave = m_dwCurrentRevisionNumber;
+
+ // redraw line revision marks
+ UpdateViews (NULL, NULL, UPDATE_FLAGSONLY);
+ }
+ else
+ {
+ sError = GetSysError(GetLastError());
+ LogErrorString(Fmt(_T("CopyFile(%s, %s) failed: %s"),
+ sIntermediateFilename.c_str(), pszFileName, sError));
+ }
+ }
+ else
+ {
+ if (bClearModifiedFlag)
+ {
+ SetModified(FALSE);
+ m_nSyncPosition = m_nUndoPosition;
+ }
+ bSaveSuccess = TRUE;
+ }
+
+ if (bSaveSuccess)
+ return SAVE_DONE;
+ else
+ return SAVE_FAILED;
+}
+
+/// Replace text of line (no change to eol)
+void CDiffTextBuffer::ReplaceLine(CCrystalTextView * pSource, int nLine, LPCTSTR pchText, int cchText, int nAction /*=CE_ACTION_UNKNOWN*/)
+{
+ if (GetLineLength(nLine)>0)
+ DeleteText(pSource, nLine, 0, nLine, GetLineLength(nLine), nAction);
+ int endl, endc;
+ if (cchText)
+ InsertText(pSource, nLine, 0, pchText, cchText, endl, endc, nAction);
+}
+
+/// Replace line (removing any eol, and only including one if in strText)
+void CDiffTextBuffer::ReplaceFullLine(CCrystalTextView * pSource, int nLine, const CString &strText, int nAction /*=CE_ACTION_UNKNOWN*/)
+{
+ if (_tcscmp(GetLineEol(nLine), getEol(strText)) == 0)
+ {
+ // (optimization) eols are the same, so just replace text inside line
+ // we must clean strText from its eol...
+ int eolLength = _tcslen(getEol(strText));
+ ReplaceLine(pSource, nLine, strText, strText.GetLength() - eolLength, nAction);
+ return;
+ }
+
+ // we may need a last line as the DeleteText end is (x=0,y=line+1)
+ if (nLine+1 == GetLineCount())
+ InsertGhostLine (pSource, GetLineCount());
+
+ if (GetFullLineLength(nLine))
+ DeleteText(pSource, nLine, 0, nLine+1, 0, nAction);
+ int endl,endc;
+ if (int cchText = strText.GetLength())
+ InsertText(pSource, nLine, 0, strText, cchText, endl,endc, nAction);
+}
+
+bool CDiffTextBuffer::curUndoGroup()
+{
+ return (m_aUndoBuf.GetSize()!=0 && m_aUndoBuf[0].m_dwFlags&UNDO_BEGINGROUP);
+}
--- /dev/null
+/**
+ * @file DiffTextBuffer.h
+ *
+ * @brief Declaration of CDiffTextBuffer class
+ */
+// ID line follows -- this is updated by SVN
+// $Id$
+
+#ifndef _DIFFTEXT_BUFFER_H_
+#define _DIFFTEXT_BUFFER_H_
+
+#include "GhostTextBuffer.h"
+#include "FileTextEncoding.h"
+
+class CMergedoc;
+class PackingInfo;
+
+/**
+ * @brief Specialized buffer to save file data
+ */
+class CDiffTextBuffer : public CGhostTextBuffer
+{
+ friend class CMergeDoc;
+
+private :
+ CMergeDoc * m_pOwnerDoc; /**< Merge document owning this buffer. */
+ int m_nThisPane; /**< Left/Right side */
+ BOOL FlagIsSet(UINT line, DWORD flag);
+ String m_strTempPath; /**< Temporary files folder. */
+ int unpackerSubcode;
+ /*
+ * @brief Unicode encoding from ucr::UNICODESET
+ *
+ * @note m_unicoding and m_codepage are indications of how the buffer is supposed to be saved on disk
+ * In memory, it is invariant, depending on build:
+ * ANSI:
+ * in memory it is CP_ACP/CP_THREAD_ACP 8-bit characters
+ * Unicode:
+ * in memory it is wchars
+ */
+ FileTextEncoding m_encoding; /**< File's encoding information. */
+
+ int NoteCRLFStyleFromBuffer(TCHAR *lpLineBegin, DWORD dwLineLen = 0);
+ void ReadLineFromBuffer(TCHAR *lpLineBegin, DWORD dwLineNum, DWORD dwLineLen = 0);
+public :
+ void SetTempPath(String path);
+ virtual void AddUndoRecord (BOOL bInsert, const CPoint & ptStartPos, const CPoint & ptEndPos,
+ LPCTSTR pszText, int cchText, int nLinesToValidate, int nActionType = CE_ACTION_UNKNOWN, CDWordArray *paSavedRevisonNumbers = NULL);
+ bool curUndoGroup();
+ void ReplaceLine(CCrystalTextView * pSource, int nLine, LPCTSTR pchText, int cchText, int nAction =CE_ACTION_UNKNOWN);
+ void ReplaceFullLine(CCrystalTextView * pSource, int nLine, const CString& strText, int nAction =CE_ACTION_UNKNOWN);
+
+ int LoadFromFile(LPCTSTR pszFileName, PackingInfo * infoUnpacker,
+ LPCTSTR filteredFilenames, BOOL & readOnly, int nCrlfStyle,
+ const FileTextEncoding & encoding, CString &sError);
+ int SaveToFile (LPCTSTR pszFileName, BOOL bTempFile, CString & sError,
+ PackingInfo * infoUnpacker = NULL, int nCrlfStyle = CRLF_STYLE_AUTOMATIC,
+ BOOL bClearModifiedFlag = TRUE );
+ int getUnicoding() const { return m_encoding.m_unicoding; }
+ void setUnicoding(int value) { m_encoding.m_unicoding = value; }
+ int getCodepage() const { return m_encoding.m_codepage; }
+ void setCodepage(int value) { m_encoding.m_codepage = value; }
+ const FileTextEncoding & getEncoding() const { return m_encoding; }
+
+ CDiffTextBuffer(CMergeDoc * pDoc, int pane);
+
+ // If line has text (excluding eol), set strLine to text (excluding eol)
+ BOOL GetLine(int nLineIndex, CString &strLine);
+
+ // if line has any text (including eol), set strLine to text (including eol)
+ BOOL GetFullLine(int nLineIndex, CString &strLine);
+
+ virtual void SetModified (BOOL bModified = TRUE);
+
+ void prepareForRescan();
+
+ /**
+ After editing a line, we don't know if there is a diff or not.
+ So we clear the LF_DIFF flag (and it is more easy to read during edition).
+ Rescan will set the proper color
+ */
+ virtual void OnNotifyLineHasBeenEdited(int nLine);
+
+ bool IsInitialized() const;
+};
+
+#endif // _DIFFTEXT_BUFFER_H_
</FileConfiguration>
</File>
<File
+ RelativePath="DiffTextBuffer.cpp">
+ <FileConfiguration
+ Name="UnicodeRelease|Win32">
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="1"
+ AdditionalIncludeDirectories=""
+ PreprocessorDefinitions=""/>
+ </FileConfiguration>
+ <FileConfiguration
+ Name="UnicodeDebug|Win32">
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="0"
+ AdditionalIncludeDirectories=""
+ PreprocessorDefinitions=""
+ BrowseInformation="1"/>
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Debug|Win32">
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="0"
+ AdditionalIncludeDirectories=""
+ PreprocessorDefinitions=""
+ BrowseInformation="1"/>
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Release|Win32">
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="1"
+ AdditionalIncludeDirectories=""
+ PreprocessorDefinitions=""/>
+ </FileConfiguration>
+ </File>
+ <File
RelativePath="DiffThread.cpp">
<FileConfiguration
Name="UnicodeRelease|Win32">
RelativePath="DiffList.h">
</File>
<File
+ RelativePath="DiffTextBuffer.h">
+ </File>
+ <File
RelativePath="DiffThread.h">
</File>
<File
#include "stdafx.h"
#include <Shlwapi.h> // PathCompactPathEx()
#include "UnicodeString.h"
-#include "FileTextEncoding.h"
#include "Merge.h"
#include "MainFrm.h"
+#include "DiffTextBuffer.h"
#include "Environment.h"
#include "Ucs2Utf8.h"
#include "diffcontext.h" // FILE_SAME
#include "coretools.h"
#include "MergeEditView.h"
#include "MergeDiffDetailView.h"
-#include "cs2cs.h"
#include "childFrm.h"
#include "dirdoc.h"
#include "files.h"
#include "FileTransform.h"
#include "unicoder.h"
#include "UniFile.h"
-#include "locality.h"
#include "OptionsDef.h"
#include "DiffFileInfo.h"
#include "SaveClosingDlg.h"
_T ("\x0d") // Macintosh style
};
-static CString GetLineByteTimeReport(UINT lines, __int64 bytes,
- const COleDateTime & start);
-
/////////////////////////////////////////////////////////////////////////////
// CMergeDoc
* (the plugins are optional, not the conversion)
* @todo Show SaveToFile() errors?
*/
-static void SaveBuffForDiff(CMergeDoc::CDiffTextBuffer & buf, LPCTSTR filepath)
+static void SaveBuffForDiff(CDiffTextBuffer & buf, LPCTSTR filepath)
{
ASSERT(buf.m_nSourceEncoding == buf.m_nDefaultEncoding);
int orig_codepage = buf.getCodepage();
}
}
-CMergeDoc::CDiffTextBuffer::CDiffTextBuffer(CMergeDoc * pDoc, int pane)
-: m_pOwnerDoc(pDoc)
-, m_nThisPane(pane)
-, unpackerSubcode(0)
-{
-}
-
-BOOL CMergeDoc::CDiffTextBuffer::GetLine(int nLineIndex, CString &strLine)
-{
- int nLineLength = CCrystalTextBuffer::GetLineLength
- ( nLineIndex );
-
- if( nLineLength < 0 )
- return FALSE;
- else if( nLineLength == 0 )
- strLine.Empty();
- else
- {
- _tcsncpy ( strLine.GetBuffer( nLineLength + 1 ),
- CCrystalTextBuffer::GetLineChars( nLineIndex ),
- nLineLength );
- strLine.ReleaseBuffer( nLineLength );
- }
- return TRUE;
-}
-
-void CMergeDoc::CDiffTextBuffer::SetModified(BOOL bModified /*= TRUE*/)
-{
- CCrystalTextBuffer::SetModified (bModified);
- m_pOwnerDoc->SetModifiedFlag (bModified);
-}
-
-BOOL CMergeDoc::CDiffTextBuffer::GetFullLine(int nLineIndex, CString &strLine)
-{
- int cchText = GetFullLineLength(nLineIndex);
- if (cchText == 0)
- return FALSE;
- LPTSTR pchText = strLine.GetBufferSetLength(cchText);
- memcpy(pchText, GetLineChars(nLineIndex), cchText * sizeof(TCHAR));
- return TRUE;
-}
-
-void CMergeDoc::CDiffTextBuffer::AddUndoRecord(BOOL bInsert, const CPoint & ptStartPos, const CPoint & ptEndPos, LPCTSTR pszText, int cchText, int nLinesToValidate, int nActionType /*= CE_ACTION_UNKNOWN*/, CDWordArray *paSavedRevisonNumbers)
-{
- CGhostTextBuffer::AddUndoRecord(bInsert, ptStartPos, ptEndPos, pszText, cchText, nLinesToValidate, nActionType, paSavedRevisonNumbers);
- if (m_aUndoBuf[m_nUndoPosition - 1].m_dwFlags & UNDO_BEGINGROUP)
- {
- m_pOwnerDoc->undoTgt.erase(m_pOwnerDoc->curUndo, m_pOwnerDoc->undoTgt.end());
- m_pOwnerDoc->undoTgt.push_back(m_pOwnerDoc->m_pView[m_nThisPane]);
- m_pOwnerDoc->curUndo = m_pOwnerDoc->undoTgt.end();
- }
-}
-
BOOL CMergeDoc::Undo()
{
return FALSE;
}
/**
- * @brief Checks if a flag is set for line.
- * @param [in] line Index (0-based) for line.
- * @param [in] flag Flag to check.
- * @return TRUE if flag is set, FALSE otherwise.
- */
-BOOL CMergeDoc::CDiffTextBuffer::FlagIsSet(UINT line, DWORD flag)
-{
- return ((m_aLines[line].m_dwFlags & flag) == flag);
-}
-
-
-/**
-Remove blank lines and clear winmerge flags
-(2003-06-21, Perry: I don't understand why this is necessary, but if this isn't
-done, more and more gray lines appear in the file)
-(2003-07-31, Laoran I don't understand either why it is necessary, but it works
-fine, so let's go on with it)
-*/
-void CMergeDoc::CDiffTextBuffer::prepareForRescan()
-{
- RemoveAllGhostLines();
- for(int ct=GetLineCount()-1; ct>=0; --ct)
- {
- SetLineFlag(ct, LF_DIFF, FALSE, FALSE, FALSE);
- SetLineFlag(ct, LF_TRIVIAL, FALSE, FALSE, FALSE);
- SetLineFlag(ct, LF_MOVED, FALSE, FALSE, FALSE);
- }
-}
-
-
-void CMergeDoc::CDiffTextBuffer::OnNotifyLineHasBeenEdited(int nLine)
-{
- SetLineFlag(nLine, LF_DIFF, FALSE, FALSE, FALSE);
- SetLineFlag(nLine, LF_TRIVIAL, FALSE, FALSE, FALSE);
- SetLineFlag(nLine, LF_MOVED, FALSE, FALSE, FALSE);
- CGhostTextBuffer::OnNotifyLineHasBeenEdited(nLine);
-}
-
-
-
-/**
- * @brief Helper to determine the most used CRLF mode in the file
- * Normal call : determine the CRLF mode of the current line
- * Final call : parameter lpLineBegin = NULL, return the style of the file
- *
- * @note The lowest CRL_STYLE has the priority in case of equality
- */
-int CMergeDoc::CDiffTextBuffer::NoteCRLFStyleFromBuffer(TCHAR *lpLineBegin, DWORD dwLineLen /* =0 */)
-{
- static int count[3] = {0};
- int iStyle = -1;
-
- // give back the result when we ask for it
- if (lpLineBegin == NULL)
- {
- iStyle = 0;
- if (count[1] > count[iStyle])
- iStyle = 1;
- if (count[2] > count[iStyle])
- iStyle = 2;
-
- // reset the counter for the next file
- count[0] = count[1] = count[2] = 0;
-
- return iStyle;
- }
-
- if (dwLineLen >= 1)
- {
- if (lpLineBegin[dwLineLen-1] == _T('\r'))
- iStyle = CRLF_STYLE_MAC;
- if (lpLineBegin[dwLineLen-1] == _T('\n'))
- iStyle = CRLF_STYLE_UNIX;
- }
- if (dwLineLen >= 2)
- {
- if (lpLineBegin[dwLineLen-2] == _T('\r') && lpLineBegin[dwLineLen-1] == _T('\n'))
- iStyle = CRLF_STYLE_DOS;
- }
- ASSERT (iStyle != -1);
- count[iStyle] ++;
- return iStyle;
-}
-
-/// Reads one line from filebuffer and inserts to textbuffer
-void CMergeDoc::CDiffTextBuffer::ReadLineFromBuffer(TCHAR *lpLineBegin, DWORD dwLineNum, DWORD dwLineLen /* =0 */)
-{
- if (m_nSourceEncoding >= 0)
- iconvert (lpLineBegin, m_nSourceEncoding, 1, m_nSourceEncoding == 15);
- AppendLine(dwLineNum, lpLineBegin, dwLineLen);
-}
-
-/// Sets path for temporary files
-void CMergeDoc::CDiffTextBuffer::SetTempPath(String path)
-{
- m_strTempPath = path;
-}
-
-bool CMergeDoc::CDiffTextBuffer::IsInitialized() const
-{
- return !!m_bInit;
-}
-
-/**
- * @brief Examine statistics in textFileStats and return a crystaltextbuffer enum value for line style
- */
-int GetTextFileStyle(const UniMemFile::txtstats & stats)
-{
- if (stats.ncrlfs >= stats.nlfs)
- {
- if (stats.ncrlfs >= stats.ncrs)
- {
- return CRLF_STYLE_DOS;
- }
- else
- {
- return CRLF_STYLE_MAC;
- }
- }
- else
- {
- if (stats.nlfs >= stats.ncrs)
- {
- return CRLF_STYLE_UNIX;
- }
- else
- {
- return CRLF_STYLE_MAC;
- }
- }
-}
-/**
- * @brief Examine statistics in textFileStats and tell if the file has only one EOL type
- */
-int IsTextFileStylePure(const UniMemFile::txtstats & stats)
-{
- int nType = 0;
- nType += (stats.ncrlfs > 0);
- nType += (stats.ncrs > 0);
- nType += (stats.nlfs > 0);
- return (nType <= 1);
-}
-
-
-/**
- * @brief Return a string giving #lines and #bytes and how much time elapsed.
- * @param [in] lines Count of lines.
- * @param [in] bytes Count of bytes.
- * @param [in] start Time used.
- * @return Formatted string.
- */
-static CString GetLineByteTimeReport(UINT lines, __int64 bytes,
- const COleDateTime & start)
-{
- String sLines = locality::NumToLocaleStr((int)lines);
- String sBytes = locality::NumToLocaleStr(bytes);
- COleDateTimeSpan duration = COleDateTime::GetCurrentTime() - start;
- String sMinutes = locality::NumToLocaleStr((int)duration.GetTotalMinutes());
- CString str;
- str.Format(_T("%s lines (%s byte) saved in %sm%02ds")
- , sLines.c_str(), sBytes.c_str(), sMinutes.c_str()
- , duration.GetSeconds()
- );
- return str;
-}
-
-/**
- * @brief Escape control characters.
- * @param [in,out] s Line of text excluding eol chars.
- *
- * @note Escape sequences follow the pattern
- * (leadin character, high nibble, low nibble, leadout character).
- * The leadin character is '\x0F'. The leadout character is a backslash.
- */
-static void EscapeControlChars(CString &s)
-{
- // Compute buffer length required for escaping
- int n = s.GetLength();
- LPCTSTR q = s;
- int i = n;
- while (i)
- {
- TCHAR c = q[--i];
- // Is it a control character in the range 0..31 except TAB?
- if (!(c & ~_T('\x1F')) && c != _T('\t'))
- {
- n += 3; // Need 3 extra characters to escape
- }
- }
- // Reallocate accordingly
- i = s.GetLength();
- LPTSTR p = s.GetBufferSetLength(n);
- // Copy/translate characters starting at end of string
- while (i)
- {
- TCHAR c = p[--i];
- // Is it a control character in the range 0..31 except TAB?
- if (!(c & ~_T('\x1F')) && c != _T('\t'))
- {
- // Bitwise OR with 0x100 so _itot() will output 3 hex digits
- _itot(0x100 | c, p + n - 4, 16);
- // Replace terminating zero with leadout character
- p[n - 1] = _T('\\');
- // Prepare to replace 1st hex digit with leadin character
- c = _T('\x0F');
- n -= 3;
- }
- p[--n] = c;
- }
-}
-
-/**
* @brief Unescape control characters.
* @param [in,out] s Line of text excluding eol chars.
*/
}
/**
- * @brief Load file from disk into buffer
- *
- * @param [in] pszFileNameInit File to load
- * @param [in] infoUnpacker Unpacker plugin
- * @param [in] sToFindUnpacker String for finding unpacker plugin
- * @param [out] readOnly Loading was lossy so file should be read-only
- * @param [in] nCrlfStyle EOL style used
- * @param [in] encoding Encoding used
- * @param [out] sError Error message returned
- * @return FRESULT_OK when loading succeed or (list in files.h):
- * - FRESULT_OK_IMPURE : load OK, but the EOL are of different types
- * - FRESULT_ERROR_UNPACK : plugin failed to unpack
- * - FRESULT_ERROR : loading failed, sError contains error message
- * - FRESULT_BINARY : file is binary file
- * @note If this method fails, it calls InitNew so the CDiffTextBuffer is in a valid state
- */
-int CMergeDoc::CDiffTextBuffer::LoadFromFile(LPCTSTR pszFileNameInit,
- PackingInfo * infoUnpacker, LPCTSTR sToFindUnpacker, BOOL & readOnly,
- int nCrlfStyle, const FileTextEncoding & encoding, CString &sError)
-{
- ASSERT(!m_bInit);
- ASSERT(m_aLines.GetSize() == 0);
-
- // Unpacking the file here, save the result in a temporary file
- String sFileName = pszFileNameInit;
- if (infoUnpacker->bToBeScanned)
- {
- if (!FileTransform_Unpacking(sFileName, sToFindUnpacker, infoUnpacker, &unpackerSubcode))
- {
- InitNew(); // leave crystal editor in valid, empty state
- return FileLoadResult::FRESULT_ERROR_UNPACK;
- }
- }
- else
- {
- if (!FileTransform_Unpacking(sFileName, infoUnpacker, &unpackerSubcode))
- {
- InitNew(); // leave crystal editor in valid, empty state
- return FileLoadResult::FRESULT_ERROR_UNPACK;
- }
- }
- // we use the same unpacker for both files, so it must be defined after first file
- ASSERT(infoUnpacker->bToBeScanned != PLUGIN_AUTO);
- // we will load the transformed file
- LPCTSTR pszFileName = sFileName.c_str();
-
- String sExt;
- DWORD nRetVal = FileLoadResult::FRESULT_OK;
-
- // Set encoding based on extension, if we know one
- SplitFilename(pszFileName, NULL, NULL, &sExt);
- CCrystalTextView::TextDefinition *def =
- CCrystalTextView::GetTextType(sExt.c_str());
- if (def && def->encoding != -1)
- m_nSourceEncoding = def->encoding;
-
- UniFile *pufile = infoUnpacker->pufile;
- if (pufile == 0)
- pufile = new UniMemFile;
-
- // Now we only use the UniFile interface
- // which is something we could implement for HTTP and/or FTP files
-
- if (!pufile->OpenReadOnly(pszFileName))
- {
- nRetVal = FileLoadResult::FRESULT_ERROR;
- UniFile::UniError uniErr = pufile->GetLastUniError();
- if (uniErr.hasError())
- {
- if (uniErr.apiname.IsEmpty())
- sError = uniErr.desc;
- else
- sError = GetSysError(uniErr.syserrnum);
- }
- InitNew(); // leave crystal editor in valid, empty state
- goto LoadFromFileExit;
- }
- else
- {
- // If the file is not unicode file, use the codepage we were given to
- // interpret the 8-bit characters. If the file is unicode file,
- // determine its type (IsUnicode() does that).
- if (encoding.m_unicoding == ucr::NONE || !pufile->IsUnicode())
- pufile->SetCodepage(encoding.m_codepage);
- UINT lineno = 0;
- CString eol, preveol;
- CString sline;
- bool done = false;
- UINT next_line_report = 100; // for trace messages
- UINT next_line_multiple = 5; // for trace messages
- COleDateTime start = COleDateTime::GetCurrentTime(); // for trace messages
-
- // Manually grow line array exponentially
- UINT arraysize = 500;
- m_aLines.SetSize(arraysize);
-
- // preveol must be initialized for empty files
- preveol = "\n";
-
- do {
- bool lossy=false;
- done = !pufile->ReadString(sline, eol, &lossy);
-
- // if last line had no eol, we can quit
- if (done && preveol.IsEmpty())
- break;
- // but if last line had eol, we add an extra (empty) line to buffer
-
- // Manually grow line array exponentially
- if (lineno == arraysize)
- {
- arraysize *= 2;
- m_aLines.SetSize(arraysize);
- }
-
- sline += eol; // TODO: opportunity for optimization, as CString append is terrible
- if (lossy)
- {
- // TODO: Should record lossy status of line
- }
- AppendLine(lineno, sline, sline.GetLength());
- ++lineno;
- preveol = eol;
-
-#ifdef _DEBUG
- // send occasional line counts to trace
- // (at 100, 500, 1000, 5000, etc)
- if (lineno == next_line_report)
- {
- __int64 dwBytesRead = pufile->GetPosition();
- COleDateTimeSpan duration = COleDateTime::GetCurrentTime() - start;
- if (duration.GetTotalMinutes() > 0)
- {
- CString strace = GetLineByteTimeReport(lineno, dwBytesRead, start);
- TRACE(_T("%s\n"), (LPCTSTR)strace);
- }
- next_line_report = next_line_multiple * next_line_report;
- next_line_multiple = (next_line_multiple == 5) ? 2 : 5;
- }
-#endif // _DEBUG
- } while (!done);
-
-#ifdef _DEBUG
- // Send report of duration to trace (if it took a while)
- COleDateTime end = COleDateTime::GetCurrentTime();
- COleDateTimeSpan duration = end - start;
- if (duration.GetTotalMinutes() > 0)
- {
- __int64 dwBytesRead = pufile->GetPosition();
- CString strace = GetLineByteTimeReport(lineno, dwBytesRead, start);
- TRACE(_T("%s\n"), (LPCTSTR)strace);
- }
-#endif // _DEBUG
-
- // fix array size (due to our manual exponential growth
- m_aLines.SetSize(lineno);
-
-
- //Try to determine current CRLF mode (most frequent)
- if (nCrlfStyle == CRLF_STYLE_AUTOMATIC)
- {
- nCrlfStyle = GetTextFileStyle(pufile->GetTxtStats());
- }
- ASSERT(nCrlfStyle >= 0 && nCrlfStyle <= 2);
- SetCRLFMode(nCrlfStyle);
-
- // At least one empty line must present
- // (view does not work for empty buffers)
- ASSERT(m_aLines.GetSize() > 0);
-
- m_bInit = TRUE;
- m_bModified = FALSE;
- m_bUndoGroup = m_bUndoBeginGroup = FALSE;
- m_nUndoBufSize = 1024; // crystaltextbuffer.cpp - UNDO_BUF_SIZE;
- m_nSyncPosition = m_nUndoPosition = 0;
- ASSERT(m_aUndoBuf.GetSize() == 0);
- m_ptLastChange.x = m_ptLastChange.y = -1;
-
- FinishLoading();
- // flags don't need initialization because 0 is the default value
-
- // Set the return value : OK + info if the file is impure
- // A pure file is a file where EOL are consistent (all DOS, or all UNIX, or all MAC)
- // An impure file is a file with several EOL types
- // WinMerge may display impure files, but the default option is to unify the EOL
- // We return this info to the caller, so it may display a confirmation box
- if (IsTextFileStylePure(pufile->GetTxtStats()))
- nRetVal = FileLoadResult::FRESULT_OK;
- else
- nRetVal = FileLoadResult::FRESULT_OK_IMPURE;
-
- // stash original encoding away
- m_encoding.m_unicoding = pufile->GetUnicoding();
- m_encoding.m_bom = pufile->HasBom();
- m_encoding.m_codepage = pufile->GetCodepage();
-
- if (pufile->GetTxtStats().nlosses)
- {
- FileLoadResult::AddModifier(nRetVal, FileLoadResult::FRESULT_LOSSY);
- readOnly = TRUE;
- }
- }
-
-LoadFromFileExit:
- // close the file now to free the handle
- pufile->Close();
- delete pufile;
-
- // delete the file that unpacking may have created
- if (_tcscmp(pszFileNameInit, pszFileName) != 0)
- if (!::DeleteFile(pszFileName))
- {
- LogErrorString(Fmt(_T("DeleteFile(%s) failed: %s"),
- pszFileName, GetSysError(GetLastError())));
- }
-
- return nRetVal;
-}
-
-/**
- * @brief Saves file from buffer to disk
- *
- * @param bTempFile : FALSE if we are saving user files and
- * TRUE if we are saving workin-temp-files for diff-engine
- *
- * @return SAVE_DONE or an error code (list in MergeDoc.h)
- */
-int CMergeDoc::CDiffTextBuffer::SaveToFile (LPCTSTR pszFileName,
- BOOL bTempFile, CString & sError, PackingInfo * infoUnpacker /*= NULL*/,
- int nCrlfStyle /*= CRLF_STYLE_AUTOMATIC*/,
- BOOL bClearModifiedFlag /*= TRUE*/ )
-{
- ASSERT (nCrlfStyle == CRLF_STYLE_AUTOMATIC || nCrlfStyle == CRLF_STYLE_DOS ||
- nCrlfStyle == CRLF_STYLE_UNIX || nCrlfStyle == CRLF_STYLE_MAC);
- ASSERT (m_bInit);
-
- if (!pszFileName || _tcslen(pszFileName) == 0)
- return SAVE_FAILED; // No filename, cannot save...
-
- if (nCrlfStyle == CRLF_STYLE_AUTOMATIC &&
- !GetOptionsMgr()->GetBool(OPT_ALLOW_MIXED_EOL) ||
- infoUnpacker && infoUnpacker->disallowMixedEOL)
- {
- // get the default nCrlfStyle of the CDiffTextBuffer
- nCrlfStyle = GetCRLFMode();
- ASSERT(nCrlfStyle >= 0 && nCrlfStyle <= 2);
- }
-
- BOOL bOpenSuccess = TRUE;
- BOOL bSaveSuccess = FALSE;
-
- UniStdioFile file;
- file.SetUnicoding(m_encoding.m_unicoding);
- file.SetBom(m_encoding.m_bom);
- file.SetCodepage(m_encoding.m_codepage);
-
- String sIntermediateFilename; // used when !bTempFile
-
- if (bTempFile)
- {
- bOpenSuccess = !!file.OpenCreate(pszFileName);
- }
- else
- {
- sIntermediateFilename = env_GetTempFileName(m_strTempPath.c_str(),
- _T("MRG_"), NULL);
- if (sIntermediateFilename.empty())
- return SAVE_FAILED; //Nothing to do if even tempfile name fails
- bOpenSuccess = !!file.OpenCreate(sIntermediateFilename.c_str());
- }
-
- if (!bOpenSuccess)
- {
- UniFile::UniError uniErr = file.GetLastUniError();
- if (uniErr.hasError())
- {
- if (uniErr.apiname.IsEmpty())
- sError = uniErr.desc;
- else
- sError = GetSysError(uniErr.syserrnum);
- if (bTempFile)
- LogErrorString(Fmt(_T("Opening file %s failed: %s"),
- pszFileName, sError));
- else
- LogErrorString(Fmt(_T("Opening file %s failed: %s"),
- sIntermediateFilename, sError));
- }
- return SAVE_FAILED;
- }
-
- file.WriteBom();
-
- // line loop : get each real line and write it in the file
- CString sLine;
- CString sEol = GetStringEol(nCrlfStyle);
- int nLineCount = m_aLines.GetSize();
- for (int line=0; line<nLineCount; ++line)
- {
- if (GetLineFlags(line) & LF_GHOST)
- continue;
-
- // get the characters of the line (excluding EOL)
- if (GetLineLength(line) > 0)
- GetText(line, 0, line, GetLineLength(line), sLine, 0);
- else
- sLine = _T("");
-
- if (bTempFile)
- EscapeControlChars(sLine);
- // last real line ?
- if (line == ApparentLastRealLine())
- {
- // last real line is never EOL terminated
- ASSERT (_tcslen(GetLineEol(line)) == 0);
- // write the line and exit loop
- file.WriteString(sLine);
- break;
- }
-
- // normal real line : append an EOL
- if (nCrlfStyle == CRLF_STYLE_AUTOMATIC)
- {
- // either the EOL of the line (when preserve original EOL chars is on)
- sLine += GetLineEol(line);
- }
- else
- {
- // or the default EOL for this file
- sLine += sEol;
- }
-
- // write this line to the file (codeset or unicode conversions are done there)
- file.WriteString(sLine);
- }
- file.Close();
-
-
- if (!bTempFile)
- {
- // If we are saving user files
- // we need an unpacker/packer, at least a "do nothing" one
- ASSERT(infoUnpacker != NULL);
- // repack the file here, overwrite the temporary file we did save in
- String csTempFileName = sIntermediateFilename;
- infoUnpacker->subcode = unpackerSubcode;
- if (!FileTransform_Packing(csTempFileName, *infoUnpacker))
- {
- if (!::DeleteFile(sIntermediateFilename.c_str()))
- {
- LogErrorString(Fmt(_T("DeleteFile(%s) failed: %s"),
- sIntermediateFilename.c_str(), GetSysError(GetLastError())));
- }
- // returns now, don't overwrite the original file
- return SAVE_PACK_FAILED;
- }
- // the temp filename may have changed during packing
- if (csTempFileName != sIntermediateFilename)
- {
- if (!::DeleteFile(sIntermediateFilename.c_str()))
- {
- LogErrorString(Fmt(_T("DeleteFile(%s) failed: %s"),
- sIntermediateFilename.c_str(), GetSysError(GetLastError())));
- }
- sIntermediateFilename = csTempFileName;
- }
-
- // Write tempfile over original file
- if (::CopyFile(sIntermediateFilename.c_str(), pszFileName, FALSE))
- {
- if (!::DeleteFile(sIntermediateFilename.c_str()))
- {
- LogErrorString(Fmt(_T("DeleteFile(%s) failed: %s"),
- sIntermediateFilename.c_str(), GetSysError(GetLastError())));
- }
- if (bClearModifiedFlag)
- {
- SetModified(FALSE);
- m_nSyncPosition = m_nUndoPosition;
- }
- bSaveSuccess = TRUE;
-
- // remember revision number on save
- m_dwRevisionNumberOnSave = m_dwCurrentRevisionNumber;
-
- // redraw line revision marks
- UpdateViews (NULL, NULL, UPDATE_FLAGSONLY);
- }
- else
- {
- sError = GetSysError(GetLastError());
- LogErrorString(Fmt(_T("CopyFile(%s, %s) failed: %s"),
- sIntermediateFilename.c_str(), pszFileName, sError));
- }
- }
- else
- {
- if (bClearModifiedFlag)
- {
- SetModified(FALSE);
- m_nSyncPosition = m_nUndoPosition;
- }
- bSaveSuccess = TRUE;
- }
-
- if (bSaveSuccess)
- return SAVE_DONE;
- else
- return SAVE_FAILED;
-}
-
-/// Replace text of line (no change to eol)
-void CMergeDoc::CDiffTextBuffer::ReplaceLine(CCrystalTextView * pSource, int nLine, LPCTSTR pchText, int cchText, int nAction /*=CE_ACTION_UNKNOWN*/)
-{
- if (GetLineLength(nLine)>0)
- DeleteText(pSource, nLine, 0, nLine, GetLineLength(nLine), nAction);
- int endl, endc;
- if (cchText)
- InsertText(pSource, nLine, 0, pchText, cchText, endl, endc, nAction);
-}
-
-/// Return pointer to the eol chars of this string, or pointer to empty string if none
-LPCTSTR getEol(const CString &str)
-{
- if (str.GetLength()>1 && str[str.GetLength()-2]=='\r' && str[str.GetLength()-1]=='\n')
- return (LPCTSTR)str + str.GetLength()-2;
- if (str.GetLength()>0 && (str[str.GetLength()-1]=='\r' || str[str.GetLength()-1]=='\n'))
- return (LPCTSTR)str + str.GetLength()-1;
- return _T("");
-}
-
-/// Replace line (removing any eol, and only including one if in strText)
-void CMergeDoc::CDiffTextBuffer::ReplaceFullLine(CCrystalTextView * pSource, int nLine, const CString &strText, int nAction /*=CE_ACTION_UNKNOWN*/)
-{
- if (_tcscmp(GetLineEol(nLine), getEol(strText)) == 0)
- {
- // (optimization) eols are the same, so just replace text inside line
- // we must clean strText from its eol...
- int eolLength = _tcslen(getEol(strText));
- ReplaceLine(pSource, nLine, strText, strText.GetLength() - eolLength, nAction);
- return;
- }
-
- // we may need a last line as the DeleteText end is (x=0,y=line+1)
- if (nLine+1 == GetLineCount())
- InsertGhostLine (pSource, GetLineCount());
-
- if (GetFullLineLength(nLine))
- DeleteText(pSource, nLine, 0, nLine+1, 0, nAction);
- int endl,endc;
- if (int cchText = strText.GetLength())
- InsertText(pSource, nLine, 0, strText, cchText, endl,endc, nAction);
-}
-
-/**
* @brief Take care of rescanning document.
*
* Update view and restore cursor and scroll position after
pCmdUI->SetText(s.c_str());
}
-bool CMergeDoc::CDiffTextBuffer::curUndoGroup()
-{
- return (m_aUndoBuf.GetSize()!=0 && m_aUndoBuf[0].m_dwFlags&UNDO_BEGINGROUP);
-}
-
-
/**
* @brief Build the diff array and prepare buffers accordingly (insert ghost lines, set WinMerge flags)
*
#if !defined(AFX_MERGEDOC_H__BBCD4F90_34E4_11D1_BAA6_00A024706EDC__INCLUDED_)
#define AFX_MERGEDOC_H__BBCD4F90_34E4_11D1_BAA6_00A024706EDC__INCLUDED_
-#include "GhostTextBuffer.h"
+#include "DiffTextBuffer.h"
#include <vector>
#include "DiffWrapper.h"
#include "DiffList.h"
{
// Attributes
public:
-
-/**
- * @brief Specialized buffer to save file data
- */
-class CDiffTextBuffer : public CGhostTextBuffer
- {
- friend class CMergeDoc;
-private :
- CMergeDoc * m_pOwnerDoc; /**< Merge document owning this buffer. */
- int m_nThisPane; /**< Left/Right side */
- BOOL FlagIsSet(UINT line, DWORD flag);
- String m_strTempPath; /**< Temporary files folder. */
- int unpackerSubcode;
- /*
- * @brief Unicode encoding from ucr::UNICODESET
- *
- * @note m_unicoding and m_codepage are indications of how the buffer is supposed to be saved on disk
- * In memory, it is invariant, depending on build:
- * ANSI:
- * in memory it is CP_ACP/CP_THREAD_ACP 8-bit characters
- * Unicode:
- * in memory it is wchars
- */
- FileTextEncoding m_encoding; /**< File's encoding information. */
-
- int NoteCRLFStyleFromBuffer(TCHAR *lpLineBegin, DWORD dwLineLen = 0);
- void ReadLineFromBuffer(TCHAR *lpLineBegin, DWORD dwLineNum, DWORD dwLineLen = 0);
-public :
- void SetTempPath(String path);
- virtual void AddUndoRecord (BOOL bInsert, const CPoint & ptStartPos, const CPoint & ptEndPos,
- LPCTSTR pszText, int cchText, int nLinesToValidate, int nActionType = CE_ACTION_UNKNOWN, CDWordArray *paSavedRevisonNumbers = NULL);
- bool curUndoGroup();
- void ReplaceLine(CCrystalTextView * pSource, int nLine, LPCTSTR pchText, int cchText, int nAction =CE_ACTION_UNKNOWN);
- void ReplaceFullLine(CCrystalTextView * pSource, int nLine, const CString& strText, int nAction =CE_ACTION_UNKNOWN);
-
- int LoadFromFile(LPCTSTR pszFileName, PackingInfo * infoUnpacker,
- LPCTSTR filteredFilenames, BOOL & readOnly, int nCrlfStyle,
- const FileTextEncoding & encoding, CString &sError);
- int SaveToFile (LPCTSTR pszFileName, BOOL bTempFile, CString & sError,
- PackingInfo * infoUnpacker = NULL, int nCrlfStyle = CRLF_STYLE_AUTOMATIC,
- BOOL bClearModifiedFlag = TRUE );
- int getUnicoding() const { return m_encoding.m_unicoding; }
- void setUnicoding(int value) { m_encoding.m_unicoding = value; }
- int getCodepage() const { return m_encoding.m_codepage; }
- void setCodepage(int value) { m_encoding.m_codepage = value; }
- const FileTextEncoding & getEncoding() const { return m_encoding; }
-
- CDiffTextBuffer(CMergeDoc * pDoc, int pane);
-
- // If line has text (excluding eol), set strLine to text (excluding eol)
- BOOL GetLine(int nLineIndex, CString &strLine);
-
- // if line has any text (including eol), set strLine to text (including eol)
- BOOL GetFullLine(int nLineIndex, CString &strLine);
-
- virtual void SetModified (BOOL bModified = TRUE);
-
- void prepareForRescan();
-
- /**
- After editing a line, we don't know if there is a diff or not.
- So we clear the LF_DIFF flag (and it is more easy to read during edition).
- Rescan will set the proper color
- */
- virtual void OnNotifyLineHasBeenEdited(int nLine);
-
- bool IsInitialized() const;
-
- } friend;
-
-// End declaration of CMergeDoc::CDiffTextBuffer
-
-// Begin declaration of CMergeDoc
-
CDiffTextBuffer *m_ptBuf[2]; /**< Left/Right side text buffer */
protected: // create from serialization only
CMergeDoc();
DECLARE_DYNCREATE(CMergeDoc)
-
// Operations
public:
DiffFileInfo *m_pSaveFileInfo[2];
CString text;
- CMergeDoc::CDiffTextBuffer * buffer = pDoc->m_ptBuf[m_nThisPane];
+ CDiffTextBuffer * buffer = pDoc->m_ptBuf[m_nThisPane];
buffer->GetTextWithoutEmptys(ptSelStart.y, ptSelStart.x,
ptSelEnd.y, ptSelEnd.x, text);
bool CMergeEditView::IsInitialized() const
{
CMergeEditView * pThis = const_cast<CMergeEditView *>(this);
- CMergeDoc::CDiffTextBuffer * pBuffer = dynamic_cast<CMergeDoc::CDiffTextBuffer *>(pThis->LocateTextBuffer());
+ CDiffTextBuffer * pBuffer = dynamic_cast<CDiffTextBuffer *>(pThis->LocateTextBuffer());
return pBuffer->IsInitialized();
}
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