Replacing all words that are part of variable names-CodePudding

I am writing R code in Visual Studio Code and would like to replace all words in strings that have the following format:

c("c22lineoftext", "h12another_line_of_text")

to:

c("c22var", "h12var")

I am having some trouble figuring out the correct regex to handle these cases.

What would be the best approach here?

CodePudding user response：

I'm not sure about pattern, but you may try

library(stringr)

x <- c("c22lineoftext", "h12another_line_of_text")

paste0(str_extract(x, "\\w\\d{2}"), "var")

[1] "c22var" "h12var"

CodePudding user response：

Same as @Park with base R:

paste0(sub("(\\w\\d{2}).*", "\\1", x), "var")

[1] "c22var" "h12var"