fork(2) download 
  1. test <- 'abcdef abc<span abc>defabc abcdef</span> abc defabc'
  2. gsub('\\babc(?![^<]*>)', 'xxx', test, perl=TRUE)
Success #stdin #stdout 0.19s 175424KB
comments (?)
stdin 
Standard input is empty
stdout 
[1] "xxxdef xxx<span abc>defabc xxxdef</span> xxx defabc"
https://ideone.com/qI9jWB
language:
R (R 3.5.2)
created:
7 years ago
visibility:
public

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!