Text file parsing with python and with a list in grammar

[pitanga]

Hello!

Are there people here who know NLP? I have to do a parsing: the goal is to create a grammar rules that will be applied in a corpus. I have a question: is it possible to have a list within a grammar?

Example (it isn't a code, just an example of the algorithm):

1) Open the text to be analyzed
2) Write the grammatical rules (just an example):
   grammar("""
   S -> NP VP
   NP -> DET N
   VP -> V N
   DET -> list_det.txt
   N -> list_n.txt
   V -> list.txt""")
3) Print the result with the entries that obey this grammar

It's possible? Thanks!! =)

[sparkz_alot]

Have you looked at NLTK and the book NLTK Book. They would be a good place to start.

[pitanga]

Thanks for your answer!

Yes, I have seen NLTK Book and the forms of the grammars are always of the type:

DET -> the
N -> cat | Dog
V -> eat

So I would like to know if it is possible to replace the lexicon with an external list...