fork download
copy 
  1. character_vector <- c("<br>Hello</br>", "I want to keep this <important text> and <string?>")
  2. exclude <- c("important text", "string?")
  3. regex.escape <- function(string) {
  4.   gsub("([][{}()+*^$|\\\\?.])", "\\\\\\1", string)
  5. }
  6. gsub(paste0("<(?!(?:", paste(regex.escape(exclude), collapse="|"), ")>)[^>]*>"), "", character_vector, perl=TRUE)
Success #stdin #stdout 0.23s 39748KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
[1] "Hello"                                             
[2] "I want to keep this <important text> and <string?>"
https://ideone.com/coFhIj
language:
R (R 3.5.2)
created:
5 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!