Custom instance variables and initializing with PetitParser

Question

As far as I know PetitParser initializes each instance variable with a production method of the same name. What should one do, to add a custom instance variable and initialize it in the initialize method for example?

that's only true for subclasses of PPCompositeParser – Damien Cassou Mar 22 '13 at 17:21 — Damien Cassou, Mar 22 '13 at 17:21

Lukas Renggli · Accepted Answer · 2013-03-22T17:54:25.030

3

You can override the class-side method #ignoredNames in subclasses to add your own instance-variables that PetitParser does not touch:

PPCompositeParser class>>#ignoredNames
    "Answer a collection of instance-variables that should 
     not be automatically initialized with productions, but
     that are used internal to the composite parser."

     ^ PPCompositeParser allInstVarNames

edited Mar 22 '13 at 17:54

answered Mar 22 '13 at 16:44

Lukas Renggli

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Custom instance variables and initializing with PetitParser

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