[Bug 1581278] [NEW] * repetition operator wierdness

[Jon Forsberg]

Public bug reported:

Package: grep 2.16-1
Ubuntu 14.04


These two commands run against the attached file testcase.txt produce different results. First one matches, second one doesn't. They should not give different results. * should match zero or more items and in this case there is 1 item.


$ cat testcase.txt | egrep  'ppp_connected[^[:alnum:]]'
ppp_status : 'ppp_connected',

$ cat testcase.txt | egrep  'ppp_connected[^[:alnum:]]*'

** Affects: grep (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "testcase.txt"
   https://bugs.launchpad.net/bugs/1581278/+attachment/4661666/+files/testcase.txt

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to grep in Ubuntu.
https://bugs.launchpad.net/bugs/1581278

Title:
  * repetition operator wierdness

Status in grep package in Ubuntu:
  New

Bug description:
  Package: grep 2.16-1
  Ubuntu 14.04

  
  These two commands run against the attached file testcase.txt produce different results. First one matches, second one doesn't. They should not give different results. * should match zero or more items and in this case there is 1 item.

  
  $ cat testcase.txt | egrep  'ppp_connected[^[:alnum:]]'
  ppp_status : 'ppp_connected',

  $ cat testcase.txt | egrep  'ppp_connected[^[:alnum:]]*'

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grep/+bug/1581278/+subscriptions