Hello everyone!

I would be very thankful if someone would help me understand what happens 
in my code,
which I have been failing to do for quite a few days.

Here is the simplified version of the grammar I'm working on.
https://github.com/itoloaca/Notation-Based-Parsing/blob/master/My_Grammar.pm
and this is the code that uses it can be found here:
https://github.com/itoloaca/Notation-Based-Parsing/blob/master/test123.pl

The input is: "<mrow><mi>L</mi><mi>L</mi></mrow>"
The output is: 
Actual events: $VAR1 = [
          [
            16,
            10,
            'Notation'
          ]
        ];
Which means that 'Notation' was found only as the second <mi>L</mi>,
while I would expect [ [6, 20]] - meaning the 2 symbols 
 <mi>L</mi><mi>L</mi>.

  There are a lot of peculiarities I found - for example replacing argRule 
with Expr 
makes it work right, also removing <mrow> tags or even simply switching the 
order
of the elements of "Notation ::= L argRule" to "Notation::= argRule L" 
makes it once again work right.
Since using events is a basic point in my project - I can't help but wonder 
what is 
that I don't know about the way these work that triggers these strange 
phenomena.
Therefore, please help me understand events (a link to an appropriate 
tutorial would 
be nice... I just can't figure it out from the documentation).

Thank you in advance for your help.

Best regards,
Toloaca Ion

-- 
You received this message because you are subscribed to the Google Groups 
"marpa parser" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
For more options, visit https://groups.google.com/d/optout.

Reply via email to