// pnyx -e=documentation pncs.cmd.examples.documentation.library.ExampleProcessorChain processorChain
public static void processorChain()
{
StreamInformation streamInformation = new StreamInformation(new Settings());
// Writes to STDOUT
ILineProcessor dest = new LineProcessorToStream(streamInformation, Console.OpenStandardOutput());
// Grep filter / processor pair
ILineFilter grepFilter = new Grep {
textToFind = "world", caseSensitive = false
};
ILineProcessor grepProcessor = new LineFilterProcessor {
filter = grepFilter, processor = dest
};
// Sed transformer / processor pair
ILineTransformer sedTransformer = new SedReplace("World", "World, with love from Pnyx..", null);
ILineProcessor sedProcessor = new LineTransformerProcessor {
transform = sedTransformer, processor = grepProcessor
};
// Reads from source
using (StringStreamFactory streamFactory = new StringStreamFactory("Hello World."))
{
using (StreamToLineProcessor source = new StreamToLineProcessor(streamInformation, streamFactory))
{
source.setNextLineProcessor(sedProcessor);
// Runs
source.process(); // All I/O occurs on this step
}
}
// outputs: Hello World, with love from Pnyx...
}
private List <List <String> > parseRows(String source, Action <CsvStreamToRowProcessor> callback = null)
{
StreamInformation si = new StreamInformation(new Settings());
CsvStreamToRowProcessor csvProcess = new CsvStreamToRowProcessor();
StringStreamFactory wrapper = new StringStreamFactory(source);
csvProcess.setSource(si, wrapper);
CaptureRowProcessor capture = new CaptureRowProcessor();
csvProcess.setNextRowProcessor(capture);
if (callback != null)
{
callback(csvProcess);
}
try
{
csvProcess.process();
return(capture.rows);
}
finally
{
try { wrapper.Dispose(); } catch (Exception) { }
try { csvProcess.Dispose(); } catch (Exception) { }
}
}
