Removing three consecutrive dots and the following number from a string-CodePudding

I have data as follows:

myvec <- c("Some 1 sentence...113_the answer", "Some 3 sentence...1_the answer")

I would like to remove the three consecutrive dots and the following number from these strings, how should I do this?

I could do:

myvec <- gsub("\\...", "", myvec)

And then remove the numbers with regex, but this is a bit unsafe for my data (as there might be more numbers in the string that I need to keep as in the created example).

How should I remove the exact combination of three dots and a number?

CodePudding user response：

library(stringr)

myvec <- c("Some 1 sentence...113_the answer", "Some 3 sentence...1_the answer") str_remove_all(myvec,'\\.\\.\\.\\d')

str_remove_all(myvec,'\\.\\.\\.\\d{1,20}')

d{1,20} means that you want to delete all following numbers if their number is from one to 20

CodePudding user response：

You could either do

gsub('\\.{3}\\d{1}', '', myvec)
# [1] "Some 1 sentence13_the answer" "Some 3 sentence_the answer"

gsub('\\.{3}.*_', ' ', myvec)
[# 1] "Some 1 sentence the answer" "Some 3 sentence the answer"

depending if you want to remove one digit or the entire number.