140 lines
3.4 KiB
ObjectPascal
140 lines
3.4 KiB
ObjectPascal
unit UWriter;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, UFilter, crt, fgl, htmlelements;
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type
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TWriter = class
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public
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procedure WriteContent(AContent: String;
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AHighlights: THighlights); virtual; abstract;
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end;
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TWriterList = specialize TFPGObjectList<TWriter>;
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{ TConsoleWriter }
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TConsoleWriter = class(TWriter)
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public
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procedure WriteContent(AContent: String;
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AHighlights: THighlights); override;
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end;
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{ THTMLWriter }
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THTMLWriter = class(TWriter)
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protected
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FFileStream: TFileStream;
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procedure WriteLine(AContent: String);
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public
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constructor Create(AFileName: String);
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destructor Destroy; override;
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procedure WriteContent(AContent: String;
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AHighlights: THighlights); override;
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end;
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implementation
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const
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htmlColors: array[0..15] of String[6] = (
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'000000', '000066', '003300', '0099CC', '990000', '990033', '663300',
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'CCCCCC', '666666', '66CCFF', '66FF66', '99FFCC', 'FF8080', 'FF80B2',
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'FFFF00', 'FFFFFF'
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);
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cssColors: array[0..15] of String = (
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'Black', 'Blue', 'Green', 'Cyan', 'Red', 'Magenta', 'Brown', 'LightGray',
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'DarkGray', 'LightBlue', 'LightGreen', 'LightCyan', 'LightRed',
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'LightMagenta', 'Yellow', 'White'
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);
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{ THTMLWriter }
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procedure THTMLWriter.WriteLine(AContent: String);
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begin
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AContent := AContent + LineEnding;
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FFileStream.Write(AContent[1], Length(AContent));
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end;
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constructor THTMLWriter.Create(AFileName: String);
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begin
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FFileStream := TFileStream.Create(AFileName, fmCreate);
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WriteLine('<html>');
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WriteLine('<body><samp>');
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end;
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destructor THTMLWriter.Destroy;
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begin
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WriteLine('</samp></body>');
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WriteLine('</html>');
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FFileStream.Free;
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inherited Destroy;
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end;
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procedure THTMLWriter.WriteContent(AContent: String; AHighlights: THighlights);
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var
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matchPos, offset, lastPos: Integer;
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highlight: THighlight;
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htmlContent, style: String;
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begin
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lastPos := 1;
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htmlContent := '';
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for highlight in AHighlights do
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begin
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matchPos := highlight.Start;
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offset := highlight.Length;
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htmlContent := htmlContent + EscapeHTML(Copy(AContent, lastPos,
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matchPos - lastPos));
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style := '';
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if highlight.FGColor < 16 then
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style := 'color: ' + cssColors[highlight.FGColor] + ';';
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if highlight.BGColor < 15 then
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style := style + 'background-color: ' + cssColors[highlight.BGColor] + ';';
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if style <> '' then
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htmlContent := htmlContent + '<span style="' + style + '">';
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htmlContent := htmlContent + EscapeHTML(Copy(AContent, matchPos, offset));
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if style <> '' then
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htmlContent := htmlContent + '</span>';
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lastPos := matchPos + offset;
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end;
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htmlContent := htmlContent + EscapeHTML(Copy(AContent, lastPos, Length(AContent)));
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WriteLine(htmlContent + '<br/>');
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end;
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{ TConsoleWriter }
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procedure TConsoleWriter.WriteContent(AContent: String; AHighlights: THighlights
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);
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var
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matchPos, offset, lastPos: Integer;
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highlight: THighlight;
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begin
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lastPos := 1;
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for highlight in AHighlights do
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begin
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matchPos := highlight.Start;
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offset := highlight.Length;
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write(Copy(AContent, lastPos, matchPos - lastPos));
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if highlight.FGColor < $FF then
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TextColor(highlight.FGColor);
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if highlight.BGColor < $FF then
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TextBackground(highlight.BGColor);
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write(Copy(AContent, matchPos, offset));
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NormVideo;
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lastPos := matchPos + offset;
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end;
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writeln(Copy(AContent, lastPos, Length(AContent)));
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end;
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end.
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