Posted by Sean P. DeNigris on Nov 11, 2010; 11:25pm
URL: https://forum.world.st/PetitParser-skip-everything-up-to-X-tp3038824.html

I've been playing with PetitParser and I keep running into what seems like a common case.  I want to skip everything up to the first match of my second parser.
For example, if I don't care about anything in a string that comes before 'dd', I write:
parser2 := 'dd' asParser negate plus, 'dd' asParser ==> [ :nodes | nodes second ].
parser2 parse: 'kslkxjclkxjcdd'. "Returns  'dd'"

This gets the job done, but seems awkward. What's the most elegant way?
I thought maybe "'dd' asParser not plus, 'dd' asParser."
But the image just hangs.

Thanks.
Sean