Running ACE with pydelphin wrapper with -R option

PyDelphin Tools
1

This works for me:

ace -g ~/delphin/SRG/grammar/srg/ace/srg.dat -R -y --yy-rules

This does not:

delphin process --options="-R -y --yy-rules" -g ~/delphin/SRG/grammar/srg/ace/srg.dat --full-forest --select i-tokens ~/delphin/SRG/treebanks/dev/all/tbdb10
ProcessingTraceback (most recent call last):
  File "/home/olga/anaconda3/bin/delphin", line 8, in <module>
    sys.exit(main())
  File "/home/olga/anaconda3/lib/python3.7/site-packages/delphin/main.py", line 42, in main
    args.func(args)
  File "/home/olga/anaconda3/lib/python3.7/site-packages/delphin/cli/process.py", line 46, in call_process
    gzip=args.gzip)
  File "/home/olga/anaconda3/lib/python3.7/site-packages/delphin/commands.py", line 662, in process
    with processor(grammar, cmdargs=options, **kwargs) as cpu:
  File "/home/olga/anaconda3/lib/python3.7/site-packages/delphin/ace.py", line 90, in __init__
    _ace_argparser.parse_args(self.cmdargs)
  File "/home/olga/anaconda3/lib/python3.7/argparse.py", line 1758, in parse_args
    self.error(msg % ' '.join(argv))
  File "/home/olga/anaconda3/lib/python3.7/site-packages/delphin/ace.py", line 579, in error
    raise ValueError(message)
ValueError: unrecognized arguments: -R

Is the option unsupported? Would it be hard to add it?

2

That is correct, it is not supported. PyDelphin doesn’t recognize it because the allowed ACE options are specified and those that change the format of the output are excluded (e.g., -f is out) because PyDelphin has to parse the output. Since -R suppresses all normal output and PyDelphin does not parse the stderr messages, it could only check if the command was successful (exit code 0 vs something else). I haven’t looked closely, but it might be non-trivial to tell it to not consume any stdout when that option is used. The other thing is that PyDelphin adds --tsdb-stdout by default, which apparently causes ACE to ignore the -R option, so that would have to be handled specially.

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