fork download 
  1. grepl("ab{,}c", c("ac", "abc", "abbc", "abbbc", "abbbbc"))
  2. grepl("ab{, }c", c("ac", "abc", "abbc", "abbbc", "abbbbc"))
  3. grepl("ab{ ,   }c", c("ac", "abc", "abbc", "abbbc", "abbbbc"))
  4. grepl("ab{,2}c", c("ac", "abc", "abbc", "abbbc", "abbbbc"))
  5.  
Success #stdin #stdout 0.16s 175424KB
comments (?)
stdin 
Standard input is empty
stdout 
[1] FALSE  TRUE FALSE FALSE FALSE
[1] FALSE  TRUE FALSE FALSE FALSE
[1] FALSE  TRUE FALSE FALSE FALSE
[1]  TRUE  TRUE  TRUE  TRUE FALSE
https://ideone.com/RvD7ip
language:
R (R 3.5.2)
created:
7 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!