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Here is a simple example. It decides whether or not the input properly represents a list of value ranges. The input syntax is approximately:
[[ '!' ] <lo-num>] ['-' [<hi-num>]] \
[',' [[ '!' ] <lo-num>] ['-' [<hi-num>]] ... ]
If there is no hyphen, then a number must be present.
You should not have more than one "bang" operator,
but this FSM does not check for that.
This page contains: The input definitions See the usage page for a description of the attributes supported. back to top |