Exactly.

Look at: PPParserTest>>testAnd

Cheers, Doru

On 31 Oct 2012, at 23:57, Chris Cunningham cunningham.cb@gmail.com wrote:

I'm pretty sure this works:

$a asParser , $b and

  and	"Answer a new parser (logical and-predicate) that succeeds

whenever the receiver does, but never consumes input."

(strings work, too, but if you just have 1 character...)

-Chris On Wed, Oct 31, 2012 at 5:51 AM, Nicolas Anquetil Nicolas.Anquetil@inria.fr wrote:

...

Is there a way nice way to do a lookup in PP ?

for example, I want to ensure that I have a 'a' then a 'b'. But I don't wan't to consume 'b'

        'a' asParser , 'b' asParser lookup

currently I implemented it with a double not :-)

        'a' asParser , 'b' asParser not not

not very nice

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