El Miércoles, 18 de Febrero de 2009, Iñaki Baz Castillo escribió:
> Hi, I'm trying the following (using Ruby host language):
>
>
> action _start { start = p }
> action _stop { stop = p-1 ; value = data[start..stop].pack('c*') ; }
> action set_user { _stop ; user = value ; puts "---user=#{user}---" }
>
> user = ( unreserved | escaped | user_unreserved )+ >_start %set_user ;
>
>
> What I want to do is avoid writting the stuff in '_stop' action in every
> leaving action (%). But it seems to fail since '_stop' is executed as Ruby
> language:
> ERROR: undefined local variable or method `_stop'
>
>
> How could I invoke '_stop' action from 'set_user' action?
>
> Thanks.
Ops, I've found a workaround:
action _start { start = p }
action _stop { stop = p-1 ; value = data[start..stop].pack('c*') ; }
action set_user { user = value ; puts "---user=#{user}---" }
user = ( unreserved | escaped | user_unreserved )+ >_start %stop %set_user ;
As you see I use two leaving actions (%) in "user". It works but I've no idea
about if it *should* really work. Any problem with it?
Thanks a lot.
--
Iñaki Baz Castillo
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