Hi,
The user can type in '1 day' or '7 days'. I have the following rule which
matches:
durationPeriod: ('day' | 'days') { // do something};
and this works fine. I initially tried:
durationPeriod: 'day'('s')? { // do something};
but this never matched 'days'.
Based on the '100 monkeys' reality I tried the following:
durationPeriod: ('day''s')? { // do something};
and
durationPeriod: ('day')('s')? { // do something};
but none of them matched 'days'. The exact error is [line 1:2 no viable
alternative at input 'days'']
What have I missed? The (incredibly useful!) Syntax Diagram in antlworks
shows that the trailing 's' can be skipped, so I don't understand why it
doesn't work.
Many thanks,
Col
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