You can create a set of events, one for each of the rules you are
looking for, to trigger when that rule is completed. Let me know if
that doesn't do the trick -- there are other ways. I mention events
because they can be precisely targeted for a particular problem. -- jeffrey
On 04/17/2014 04:10 PM, Deyan Ginev wrote:
Dear all,
The documentation explains how I can get the positional information
about a rule that was successfully completed via "last_completed"
(https://metacpan.org/pod/Marpa::R2::Scanless::R#last_completed).
I have an application where I have a number of notational rules R1,
... Rn, each of which in turn "subtyping" a generic Notation rule:
Notation ::= R1
| R2
# ... and so on
So, when I ask for:
|||my| |( ||$g1_start||, ||$g1_length| |) =
||$recce||->last_completed(||'Notation'||);|
is there / could there be more information provided? For example
passing the current result of the semantics, or the list of derived
rules underneath?
I am trying to recover precisely which of R1 ... Rn was matched.
Thanks for the help in advance!
Greetings,
Deyan
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