fork download
copy 
  1. text = 'am pm  P.M.  10:56pm 10:43 a.m.'
  2. rx = /\b((?:[01]?[0-9]|[2][0-3]):[0-5][0-9]\s*[pa]\.?m\b\.?)|\b[ap]\.?m\b\.?/i
  3. result = text.gsub(rx) { $1 || "\n" }
  4. p result
Success #stdin #stdout 0s 28224KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
"\n \n  \n  10:56pm 10:43 a.m."
https://ideone.com/feVg9X
language:
Ruby (ruby 2.5.5)
created:
6 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!