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fpspreadsheet: Adds read/write wiki table format support and some improvements to the base routines
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2747 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
sekelsenmat
@ -10,7 +10,7 @@ unit fpsallformats;
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interface
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uses
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xlsbiff2, xlsbiff5, xlsbiff8, fpsopendocument, xlsxooxml;
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xlsbiff2, xlsbiff5, xlsbiff8, fpsopendocument, xlsxooxml, wikitable;
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implementation
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@ -18,7 +18,7 @@ uses
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type
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TsSpreadsheetFormat = (sfExcel2, sfExcel3, sfExcel4, sfExcel5, sfExcel8,
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sfOOXML, sfOpenDocument, sfCSV);
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sfOOXML, sfOpenDocument, sfCSV, sfWikiTable_Pipes, sfWikiTable_WikiMedia);
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const
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{ Default extensions }
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@ -26,6 +26,8 @@ const
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STR_OOXML_EXCEL_EXTENSION = '.xlsx';
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STR_OPENDOCUMENT_CALC_EXTENSION = '.ods';
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STR_COMMA_SEPARATED_EXTENSION = '.csv';
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STR_WIKITABLE_PIPES = '.wikitable_pipes';
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STR_WIKITABLE_WIKIMEDIA = '.wikitable_wikimedia';
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type
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@ -210,6 +212,7 @@ type
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{ Utils }
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class function CellPosToText(ARow, ACol: Cardinal): string;
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{ Data manipulation methods - For Cells }
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procedure CopyCell(AFromRow, AFromCol, AToRow, AToCol: Cardinal; AFromWorksheet: TsWorksheet);
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function FindCell(ARow, ACol: Cardinal): PCell;
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function GetCell(ARow, ACol: Cardinal): PCell;
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function GetCellCount: Cardinal;
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@ -220,6 +223,8 @@ type
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function ReadAsUTF8Text(ARow, ACol: Cardinal): ansistring;
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function ReadAsNumber(ARow, ACol: Cardinal): Double;
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function ReadAsDateTime(ARow, ACol: Cardinal; out AResult: TDateTime): Boolean;
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function ReadUsedFormatting(ARow, ACol: Cardinal): TsUsedFormattingFields;
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function ReadBackgroundColor(ARow, ACol: Cardinal): TsColor;
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procedure RemoveAllCells;
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procedure WriteUTF8Text(ARow, ACol: Cardinal; AText: ansistring);
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procedure WriteNumber(ARow, ACol: Cardinal; ANumber: double);
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@ -228,6 +233,7 @@ type
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procedure WriteRPNFormula(ARow, ACol: Cardinal; AFormula: TsRPNFormula);
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procedure WriteTextRotation(ARow, ACol: Cardinal; ARotation: TsTextRotation);
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procedure WriteUsedFormatting(ARow, ACol: Cardinal; AUsedFormatting: TsUsedFormattingFields);
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procedure WriteBackgroundColor(ARow, ACol: Cardinal; AColor: TsColor);
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{ Data manipulation methods - For Rows and Cols }
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function FindRow(ARow: Cardinal): PRow;
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function FindCol(ACol: Cardinal): PCol;
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@ -292,6 +298,7 @@ type
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{ General writing methods }
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procedure ReadFromFile(AFileName: string; AData: TsWorkbook); virtual;
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procedure ReadFromStream(AStream: TStream; AData: TsWorkbook); virtual;
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procedure ReadFromStrings(AStrings: TStrings; AData: TsWorkbook); virtual;
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{ Record reading methods }
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procedure ReadFormula(AStream: TStream); virtual; abstract;
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procedure ReadLabel(AStream: TStream); virtual; abstract;
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@ -329,6 +336,7 @@ type
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procedure WriteToFile(const AFileName: string; AData: TsWorkbook;
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const AOverwriteExisting: Boolean = False); virtual;
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procedure WriteToStream(AStream: TStream; AData: TsWorkbook); virtual;
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procedure WriteToStrings(AStrings: TStrings; AData: TsWorkbook); virtual;
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{ Record writing methods }
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procedure WriteFormula(AStream: TStream; const ARow, ACol: Word; const AFormula: TsFormula; ACell: PCell); virtual;
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procedure WriteRPNFormula(AStream: TStream; const ARow, ACol: Word; const AFormula: TsRPNFormula; ACell: PCell); virtual;
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@ -450,6 +458,24 @@ begin
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Result := Format('%s%d', [lStr, ARow+1]);
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end;
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procedure TsWorksheet.CopyCell(AFromRow, AFromCol, AToRow, AToCol: Cardinal;
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AFromWorksheet: TsWorksheet);
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var
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lCurStr: String;
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lCurUsedFormatting: TsUsedFormattingFields;
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lCurColor: TsColor;
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begin
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lCurStr := AFromWorksheet.ReadAsUTF8Text(AFromRow, AFromCol);
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lCurUsedFormatting := AFromWorksheet.ReadUsedFormatting(AFromRow, AFromCol);
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lCurColor := AFromWorksheet.ReadBackgroundColor(AFromRow, AFromCol);
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WriteUTF8Text(AToRow, AToCol, lCurStr);
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WriteUsedFormatting(AToRow, AToCol, lCurUsedFormatting);
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if uffBackgroundColor in lCurUsedFormatting then
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begin
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WriteBackgroundColor(AToRow, AToCol, lCurColor);
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end;
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end;
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{@@
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Tryes to locate a Cell in the list of already
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written Cells
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@ -711,6 +737,36 @@ begin
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Result := True;
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end;
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function TsWorksheet.ReadUsedFormatting(ARow, ACol: Cardinal): TsUsedFormattingFields;
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var
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ACell: PCell;
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begin
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ACell := FindCell(ARow, ACol);
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if ACell = nil then
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begin
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Result := [];
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Exit;
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end;
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Result := ACell^.UsedFormattingFields;
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end;
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function TsWorksheet.ReadBackgroundColor(ARow, ACol: Cardinal): TsColor;
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var
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ACell: PCell;
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begin
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ACell := FindCell(ARow, ACol);
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if ACell = nil then
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begin
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Result := scWhite;
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Exit;
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end;
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Result := ACell^.BackgroundColor;
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end;
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{@@
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Clears the list of Cells and releases their memory.
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}
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@ -832,6 +888,17 @@ begin
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ACell^.UsedFormattingFields := AUsedFormatting;
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end;
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procedure TsWorksheet.WriteBackgroundColor(ARow, ACol: Cardinal;
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AColor: TsColor);
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var
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ACell: PCell;
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begin
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ACell := GetCell(ARow, ACol);
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ACell^.UsedFormattingFields := ACell^.UsedFormattingFields + [uffBackgroundColor];
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ACell^.BackgroundColor := AColor;
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end;
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function TsWorksheet.FindRow(ARow: Cardinal): PRow;
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var
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LElement: TRow;
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@ -983,6 +1050,8 @@ begin
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else if suffix = STR_OOXML_EXCEL_EXTENSION then SheetType := sfOOXML
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else if suffix = STR_OPENDOCUMENT_CALC_EXTENSION then SheetType := sfOpenDocument
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else if suffix = STR_COMMA_SEPARATED_EXTENSION then SheetType := sfCSV
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else if suffix = STR_WIKITABLE_PIPES then SheetType := sfWikiTable_Pipes
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else if suffix = STR_WIKITABLE_WIKIMEDIA then SheetType := sfWikiTable_WikiMedia
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else Result := False;
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end;
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@ -1277,6 +1346,25 @@ end;
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This routine should be overriden in descendent classes.
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}
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procedure TsCustomSpreadReader.ReadFromStream(AStream: TStream; AData: TsWorkbook);
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var
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AStringStream: TStringStream;
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AStrings: TStringList;
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begin
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AStringStream := TStringStream.Create('');
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AStrings := TStringList.Create;
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try
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AStringStream.CopyFrom(AStream, AStream.Size);
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AStringStream.Seek(0, soFromBeginning);
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AStrings.Text := AStringStream.DataString;
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ReadFromStrings(AStrings, AData);
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finally
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AStringStream.Free;
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AStrings.Free;
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end;
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end;
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procedure TsCustomSpreadReader.ReadFromStrings(AStrings: TStrings;
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AData: TsWorkbook);
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begin
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raise Exception.Create(lpUnsupportedReadFormat);
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end;
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@ -1502,9 +1590,22 @@ end;
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This routine should be overriden in descendent classes.
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}
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procedure TsCustomSpreadWriter.WriteToStream(AStream: TStream; AData: TsWorkbook);
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var
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lStringList: TStringList;
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begin
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lStringList := TStringList.Create;
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try
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WriteToStrings(lStringList, AData);
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lStringList.SaveToStream(AStream);
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finally
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lStringList.Free;
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end;
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end;
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procedure TsCustomSpreadWriter.WriteToStrings(AStrings: TStrings;
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AData: TsWorkbook);
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begin
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raise Exception.Create(lpUnsupportedWriteFormat);
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end;
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procedure TsCustomSpreadWriter.WriteFormula(AStream: TStream; const ARow,
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@ -27,7 +27,7 @@
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<CompilerPath Value="$(CompPath)"/>
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</Other>
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</CompilerOptions>
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<Files Count="18">
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<Files Count="19">
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<Item1>
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<Filename Value="fpolestorage.pas"/>
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<UnitName Value="fpolestorage"/>
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@ -100,6 +100,10 @@
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<Filename Value="xlscommon.pas"/>
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<UnitName Value="xlscommon"/>
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</Item18>
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<Item19>
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<Filename Value="wikitable.pas"/>
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<UnitName Value="wikitable"/>
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</Item19>
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</Files>
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<Type Value="RunAndDesignTime"/>
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<RequiredPkgs Count="2">
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@ -11,7 +11,7 @@ uses
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xlsbiff5, xlsbiff8, xlsxooxml, fpsutils, fpszipper, uvirtuallayer_types,
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uvirtuallayer, uvirtuallayer_ole, uvirtuallayer_ole_helpers,
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uvirtuallayer_ole_types, uvirtuallayer_stream, fpolebasic, xlscommon,
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LazarusPackageIntf;
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wikitable, LazarusPackageIntf;
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implementation
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414
components/fpspreadsheet/wikitable.pas
Normal file
414
components/fpspreadsheet/wikitable.pas
Normal file
@ -0,0 +1,414 @@
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(*
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wikitable.pas
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One unit which handles multiple wiki table formats
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Format simplepipes:
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|| || title1 || title2 || title3
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| [link_to_something|http://google.com]| {color:red}FAILED{color}| {color:red}FAILED{color}| {color:green}PASS{color}
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Format mediawiki:
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{| border="1" cellpadding="2" class="wikitable sortable"
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|-
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! Title
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|-
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| [http://google.com link_to_something]
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! style="background-color:green;color:white;" | PASS
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|}
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AUTHORS: Felipe Monteiro de Carvalho
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*)
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unit wikitable;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils,
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fpimage, fgl,
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fpspreadsheet, xlscommon, fpsutils, lconvencoding;
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type
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TWikiTableToken = class
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public
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BackgroundColor: TsColor;
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UseBackgroundColor: Boolean;
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Bold: Boolean;
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Value: string;
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end;
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TWikiTableTokenList = specialize TFPGList<TWikiTableToken>;
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{ TWikiTableTokenizer }
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TWikiTableTokenizer = class
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public
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Tokens: TWikiTableTokenList;
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constructor Create; virtual;
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destructor Destroy; override;
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procedure Clear;
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function AddToken(AValue: string): TWikiTableToken;
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procedure TokenizeString_Pipes(AStr: string);
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end;
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{ TsWikiTableReader }
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TsWikiTableReader = class(TsCustomSpreadReader)
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private
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FWorksheet: TsWorksheet;
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public
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SubFormat: TsSpreadsheetFormat;
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{ General reading methods }
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procedure ReadFromStrings(AStrings: TStrings; AData: TsWorkbook); override;
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procedure ReadFromStrings_Pipes(AStrings: TStrings; AData: TsWorkbook);
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end;
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{ TsWikiTable_PipesReader }
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TsWikiTable_PipesReader = class(TsWikiTableReader)
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public
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constructor Create; override;
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end;
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{ TsWikiTableWriter }
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TsWikiTableWriter = class(TsCustomSpreadWriter)
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private
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FWorksheet: TsWorksheet;
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public
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SubFormat: TsSpreadsheetFormat;
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{ General writing methods }
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procedure WriteToStrings(AStrings: TStrings; AData: TsWorkbook); override;
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procedure WriteToStrings_WikiMedia(AStrings: TStrings; AData: TsWorkbook);
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end;
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{ TsWikiTable_WikiMediaWriter }
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TsWikiTable_WikiMediaWriter = class(TsWikiTableWriter)
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public
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constructor Create; override;
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end;
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implementation
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{ TWikiTableTokenizer }
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constructor TWikiTableTokenizer.Create;
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begin
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inherited Create;
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Tokens := TWikiTableTokenList.Create;
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end;
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destructor TWikiTableTokenizer.Destroy;
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begin
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Clear;
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Tokens.Free;
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inherited Destroy;
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end;
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procedure TWikiTableTokenizer.Clear;
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var
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i: Integer;
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begin
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for i := 0 to Tokens.Count-1 do
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Tokens.Items[i].Free;
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Tokens.Clear;
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end;
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function TWikiTableTokenizer.AddToken(AValue: string): TWikiTableToken;
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begin
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Result := TWikiTableToken.Create;
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Result.Value := AValue;
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Tokens.Add(Result);
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end;
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(*
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Format simplepipes:
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|| || title1 || title2 || title3
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| [link_to_something|http://google.com]| {color:red}FAILED{color}| {color:red}FAILED{color}| {color:green}PASS{color}
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*)
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procedure TWikiTableTokenizer.TokenizeString_Pipes(AStr: string);
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const
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Str_Pipe: Char = '|';
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Str_LinkStart: Char = '[';
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Str_LinkEnd: Char = ']';
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Str_FormatStart: Char = '{';
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Str_FormatEnd: Char = '}';
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Str_EmptySpaces: set of Char = [' '];
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var
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i: Integer;
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lTmpStr: string = '';
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lFormatStr: string = '';
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lState: Integer;
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lLookAheadChar, lCurChar: Char;
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lIsTitle: Boolean = False;
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lCurBackgroundColor: TsColor;
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lUseBackgroundColor: Boolean = False;
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lCurToken: TWikiTableToken;
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procedure DoAddToken();
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begin
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lCurToken := AddToken(lTmpStr);
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lCurToken.Bold := lIsTitle;
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lCurToken.UseBackgroundColor := lUseBackgroundColor;
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if lUseBackgroundColor then
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lCurToken.BackgroundColor := lCurBackgroundColor;
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end;
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begin
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Clear;
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lState := 0;
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i := 1;
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while i <= Length(AStr) do
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begin
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lCurChar := AStr[i];
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if i < Length(AStr) then lLookAheadChar := AStr[i+1];
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case lState of
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0: // Line-start or otherwise reading a pipe separator, expecting a | or ||
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begin
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if lCurChar = Str_Pipe then
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begin
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lState := 1;
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lIsTitle := False;
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if lLookAheadChar = Str_Pipe then
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begin
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Inc(i);
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lIsTitle := True;
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end;
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Inc(i);
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lUseBackgroundColor := False;
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lTmpStr := '';
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end
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else if lCurChar in Str_EmptySpaces then
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begin
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// Do nothing
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Inc(i);
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end
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else
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begin
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// Error!!!
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raise Exception.Create('[TWikiTableTokenizer.TokenizeString] Wrong char!');
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end;
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end;
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1: // Reading cell text
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begin
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if lCurChar = Str_Pipe then
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begin
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lState := 0;
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DoAddToken();
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end
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else if lCurChar = Str_LinkStart then
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begin
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lState := 2;
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Inc(i);
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end
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else if lCurChar = Str_FormatStart then
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begin
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lState := 4;
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Inc(i);
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end
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else
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begin
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lTmpStr := lTmpStr + lCurChar;
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Inc(i);
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end;
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end;
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2: // Link text reading
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begin
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if lCurChar = Str_Pipe then
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begin
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lState := 3;
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Inc(i);
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end
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else
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begin
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lTmpStr := lTmpStr + lCurChar;
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Inc(i);
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end;
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end;
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3: // Link target reading
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begin
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if lCurChar = Str_LinkEnd then
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begin
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lState := 1;
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Inc(i);
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||||
end
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||||
else
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begin
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Inc(i);
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||||
end;
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end;
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4: // Color start reading
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||||
begin
|
||||
if lCurChar = Str_FormatEnd then
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begin
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lState := 1;
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Inc(i);
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lFormatStr := LowerCase(Trim(lFormatStr));
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if lFormatStr = 'color:red' then lCurBackgroundColor := scRED
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||||
else if lFormatStr = 'color:green' then lCurBackgroundColor := scGREEN;
|
||||
lFormatStr := '';
|
||||
end
|
||||
else
|
||||
begin
|
||||
lFormatStr := lFormatStr + lCurChar;
|
||||
Inc(i);
|
||||
end;
|
||||
end;
|
||||
end;
|
||||
end;
|
||||
|
||||
// rest after the last || is also a token
|
||||
if lTmpStr <> '' then DoAddToken();
|
||||
|
||||
// If there is a token still to be added, add it now
|
||||
if (lState = 0) and (lTmpStr <> '') then AddToken(lTmpStr);
|
||||
end;
|
||||
|
||||
{ TsWikiTableReader }
|
||||
|
||||
procedure TsWikiTableReader.ReadFromStrings(AStrings: TStrings;
|
||||
AData: TsWorkbook);
|
||||
begin
|
||||
case SubFormat of
|
||||
sfWikiTable_Pipes: ReadFromStrings_Pipes(AStrings, AData);
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TsWikiTableReader.ReadFromStrings_Pipes(AStrings: TStrings;
|
||||
AData: TsWorkbook);
|
||||
var
|
||||
i, j: Integer;
|
||||
lCurLine: String;
|
||||
lLineSplitter: TWikiTableTokenizer;
|
||||
lCurToken: TWikiTableToken;
|
||||
begin
|
||||
FWorksheet := AData.AddWorksheet('Table');
|
||||
lLineSplitter := TWikiTableTokenizer.Create;
|
||||
try
|
||||
for i := 0 to AStrings.Count-1 do
|
||||
begin
|
||||
lCurLine := AStrings[i];
|
||||
lLineSplitter.TokenizeString_Pipes(lCurLine);
|
||||
for j := 0 to lLineSplitter.Tokens.Count-1 do
|
||||
begin
|
||||
lCurToken := lLineSplitter.Tokens[j];
|
||||
FWorksheet.WriteUTF8Text(i, j, lCurToken.Value);
|
||||
if lCurToken.Bold then FWorksheet.WriteUsedFormatting(i, j, [uffBold]);
|
||||
if lCurToken.UseBackgroundColor then FWorksheet.WriteBackgroundColor(i, j, lCurToken.BackgroundColor);
|
||||
end;
|
||||
end;
|
||||
finally
|
||||
lLineSplitter.Free;
|
||||
end;
|
||||
end;
|
||||
|
||||
{ TsWikiTable_PipesReader }
|
||||
|
||||
constructor TsWikiTable_PipesReader.Create;
|
||||
begin
|
||||
inherited Create;
|
||||
SubFormat := sfWikiTable_Pipes;
|
||||
end;
|
||||
|
||||
{ TsWikiTableWriter }
|
||||
|
||||
procedure TsWikiTableWriter.WriteToStrings(AStrings: TStrings; AData: TsWorkbook);
|
||||
begin
|
||||
case SubFormat of
|
||||
sfWikiTable_WikiMedia: WriteToStrings_WikiMedia(AStrings, AData);
|
||||
end;
|
||||
end;
|
||||
|
||||
(*
|
||||
Format mediawiki:
|
||||
|
||||
{| border="1" cellpadding="2" class="wikitable sortable"
|
||||
|-
|
||||
|
|
||||
! Title
|
||||
|-
|
||||
| [http://google.com link_to_something]
|
||||
! style="background-color:green;color:white;" | PASS
|
||||
|}
|
||||
*)
|
||||
procedure TsWikiTableWriter.WriteToStrings_WikiMedia(AStrings: TStrings;
|
||||
AData: TsWorkbook);
|
||||
var
|
||||
i, j: Integer;
|
||||
lCurStr: string = '';
|
||||
lCurCell: PCell;
|
||||
lCurUsedFormatting: TsUsedFormattingFields;
|
||||
lCurColor: TsColor;
|
||||
lColorStr: String;
|
||||
begin
|
||||
AStrings.Add('{| border="1" cellpadding="2" class="wikitable sortable"');
|
||||
FWorksheet := AData.GetFirstWorksheet();
|
||||
for i := 0 to FWorksheet.GetLastRowNumber() do
|
||||
begin
|
||||
AStrings.Add('|-');
|
||||
for j := 0 to FWorksheet.GetLastColNumber() do
|
||||
begin
|
||||
lCurStr := FWorksheet.ReadAsUTF8Text(i, j);
|
||||
lCurUsedFormatting := FWorksheet.ReadUsedFormatting(i, j);
|
||||
|
||||
if uffBackgroundColor in lCurUsedFormatting then
|
||||
begin
|
||||
lCurColor := FWorksheet.ReadBackgroundColor(i, j);
|
||||
case lCurColor of
|
||||
{scBlack, // 000000H
|
||||
scWhite, // FFFFFFH}
|
||||
scRed: lColorStr := 'red';
|
||||
scGREEN: lColorStr := 'green';
|
||||
{scBLUE, // 0000FFH
|
||||
scYELLOW, // FFFF00H
|
||||
scMAGENTA, // FF00FFH
|
||||
scCYAN, // 00FFFFH
|
||||
scDarkRed, // 800000H
|
||||
scDarkGreen,// 008000H
|
||||
scDarkBlue, // 000080H
|
||||
scOLIVE, // 808000H
|
||||
scPURPLE, // 800080H
|
||||
scTEAL, // 008080H
|
||||
scSilver, // C0C0C0H
|
||||
scGrey, // 808080H
|
||||
//
|
||||
scGrey10pct,// E6E6E6H
|
||||
scGrey20pct // CCCCCCH }
|
||||
end;
|
||||
lCurStr := 'style="background-color:'+lColorStr+';color:white;" |' + lCurStr
|
||||
end;
|
||||
|
||||
if uffBold in lCurUsedFormatting then lCurStr := '!' + lCurStr
|
||||
else lCurStr := '|' + lCurStr;
|
||||
|
||||
AStrings.Add(lCurStr);
|
||||
end;
|
||||
end;
|
||||
AStrings.Add('|}');
|
||||
end;
|
||||
|
||||
{ TsWikiTable_WikiMediaWriter }
|
||||
|
||||
constructor TsWikiTable_WikiMediaWriter.Create;
|
||||
begin
|
||||
inherited Create;
|
||||
SubFormat := sfWikiTable_WikiMedia;
|
||||
end;
|
||||
|
||||
initialization
|
||||
|
||||
RegisterSpreadFormat(TsWikiTable_PipesReader, nil, sfWikiTable_Pipes);
|
||||
RegisterSpreadFormat(nil, TsWikiTable_WikiMediaWriter, sfWikiTable_WikiMedia);
|
||||
|
||||
end.
|
||||
Reference in New Issue
Block a user