B A B A - 24 days ago 9
Ruby Question

How to convert command line output from Freeling to consumable array

I am using Ruby for this.
Freeling (a NLP tool) has a shallow parser which returns a string like this for the text "I just read the book, the grasshopper lies heavy" when I run a shallow parsing command.

a = <<EOT
S_[
sn-chunk_[
+(I i PRP -)
]
adv_[
+(just just RB -)
]
vb-chunk_[
+(read read VB -)
]
sn-chunk_[
(the the DT -)
+n-chunk_[
(book book NN -)
+n-chunk_[
+(The_Grasshopper_Lies_Heavy the_grasshopper_lies_heavy NP -)
]
]
]
st-brk_[
+(. . Fp -)
]
]

EOT


I want to get the following array from this:

["I", "just", "read", "the book The Grasshopper Lies Heavy","."]


(I want to merge the words that are under a tree and have it as a single array element.)

So far, I have written this much:

b = a.gsub(/.*\[/,'[').gsub(/.*\+?\((\w+|.) .*/,'\1').gsub(/\n| /,"").gsub("_","")


which returns

[[I][just][read][the[book[The Grasshopper Lies Heavy]]][.]]


So, how can i get the desired array?

Answer

From your solution so far:

result = a.gsub(/.*\[/,'[').gsub(/.*\+?\((\w+|.) .*/,'\1').gsub(/\n| /,"").gsub("_"," ")
result.split('][').map { |s| s.gsub(/\[|\]/, ' ').strip }     # ["I", "just", "read", "the book The Grasshopper Lies Heavy", "."]
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