Am 17.06.2011 um 17:11 schrieb Lukas Renggli:
> You probably like #separatedBy:
>
> identifierList
> ^ identifier separatedBy: $, asParser trim
>
> Now that does not remove the comma, but you get a flat list that you
> can easily filter.
Ah, much better indeed. So actually nice would be
identifierList
^ identifier separatedBy: $, asParser skip trim
:) Althoug skip is probably not the right word.
thanks,
Norbert
>
> On 17 June 2011 16:55, Norbert Hartl <
[hidden email]> wrote:
>> I have multiple rules that are like
>>
>> identifierList
>> ^ identifier, ($, asParser trim, identifier) star
>>
>> It parses a list of identifiers. The output is
>>
>> #('abc' #(#($, 'def') #($, 'ghj')))
>>
>> What I like to have is an output of
>>
>> #( 'abc' 'def' 'ghj' )
>>
>> I can produce this by changing the rule to
>>
>> ^ identifier , (($, asParser trim, identifier) ==> [:nodes| nodes second]) star
>> ==> [:nodes| (Array with: nodes first) copyWithAll: nodes second ]
>>
>> But now the rule is uglified. It doesn't work with flatten because I it would flatten all together and I want to have the identifiers separated. What would be useful is a "skip" keyword for the parser so that it is skipped for the output nodes (that would be something like ?: in perl regex).
>> Are there some better way to do this?
>>
>> thanks in advance,
>>
>> Norbert
>>
>>
>>
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>
>
>
> --
> Lukas Renggli
> www.lukas-renggli.ch
>
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