CODEWITHSUNDEEP
rdouble-quotes
Tomás Navarro
Tomás Navarro

Reputation: 170

How to add quotes around each word in a string in R?

I have a string:

words<-"Monday, Tuesday, Wednesday, Thursday,Friday"

and I only need add quotes to each word:

"Monday", "Tuesday", "Wednesday", "Thursday","Friday"

getting a length of five string.

I know there are many post about this topic, but I did´t find anything about it in R.

Many thanks.

Upvotes: 13

Views: 22722

Answers (3)

akrun
akrun

Reputation: 887851

We can split the words by , to get a list output. We loop through sapply , dQuote the elements and then paste it together with toString which is a wrapper for paste(..., collapse=', ').

sapply(strsplit(words, '[, ]+'), function(x) toString(dQuote(x)))
#[1] "“Monday”, “Tuesday”, “Wednesday”, “Thursday”, “Friday”"

If we need to change the fancy quotes, add FALSE in dQuote

sapply(strsplit(words, '[, ]+'), function(x) toString(dQuote(x, FALSE)))

Upvotes: 15

vck
vck

Reputation: 837

strsplit splits string by comma, and sub removes white spaces.

paste(dQuote(sub(" ","",unlist(strsplit(words,split = ",")))),collapse = ", ")

[1] "“Monday”, “Tuesday”, “Wednesday”, “Thursday”, “Friday”"

Upvotes: 4

Avinash Raj
Avinash Raj

Reputation: 174836

Use gsub

words<-"Monday, Tuesday, Wednesday, Thursday,Friday"
cat(gsub("(\\w+)", '"\\1"', words))
# "Monday", "Tuesday", "Wednesday", "Thursday","Friday"

KISS....

cat(gsub("\\b", '"', words, perl=T))
#"Monday", "Tuesday", "Wednesday", "Thursday","Friday"

\\b called word boundary which matches between a word character (A-Z,a-z,_,0-9) and a non-word character (not of A-Za-z0-9_) or vice-versa..

Upvotes: 9

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