Enhancement request: more filters in one process

[kseistrup]

It would be more useful if it was possible to add more filters to one em instance, e.g.:

$ tail -f debug.log | em "ERROR" red "WARNING" yellow

or

$ tail -f debug.log | em --red "ERROR" --yellow "WARNING"

[ikalnytskyi]

I plan to implement it, but currently you can achieve this functionality by using Unix pipes:

$ tail -f debug.log | em "ERROR" red | em "WARNING" yellow

[kseistrup]

Yes, I'm aware about piping, but it seems a little overkill to run another pipe for each color — hence my suggestion.

[ikalnytskyi]

but it seems a little overkill to run another pipe for each color

Why? It's a Unix way. For instance we use grep this way too:

$ tail -f /path/to/log | grep "pattern1" | grep "pattern2"

Performance and memory usage are only reasons I want to implement more filters. :)
So stay in touch, it will be in next release.