CODEWITHSUNDEEP
r
Kai
Kai

Reputation: 69

Separate into sentences

I used readLines to import a text file and I collapsed all the lines. Now I want to write a function that would cycle through the entire collapsed text and detect the end of each sentence starting a new line for each sentence. It would detect (periods, question marks, periods followed by quotations, or question marks followed by quotations)

so for example:

"I need help. How do I write this code?"

would become:

I need help.
How do I write this code?

Does anyone know how I might go about accomplishing this?

Upvotes: 0

Views: 54

Answers (2)

glagla
glagla

Reputation: 611

gsub might work. 

gsub('. ', '.\n', your_text)

replaces the '. ' pattern by '\n ' which is the symbol for a line break.

your_text = 'lets. try'
aa = gsub('. ', '.\n', your_text)
print(aa)
cat(aa)

Upvotes: 1

Ronak Shah
Ronak Shah

Reputation: 388982

We can use positive look behind regex to match for a "." or a question mark "?" and replace it with new line (\n).

str = "I need help. How do I write this code? "
cat(gsub('(?<=[.?])\\s', '\n', str, perl = TRUE))

#I need help.
#How do I write this code?

Upvotes: 0

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