How to add tags to negated words in strings that follow “not”, “no” and “never”

Question

How do I add the tag NEG_ to all words that follow not, no and never until the next punctuation mark in a string(used for

Answer 1

I would not do this with regexp. Rather I would;

• Split the input on punctuation characters.
• For each fragment do
• Set negation counter to 0
• Split input into words
• For each word
• Add negation counter number of NEG_ to the word. (Or mod 2, or 1 if greater than 0)
• If original word is in {No,Never,Not} increase negation counter by one.