[Bug 460985] Re: grep {, m} construction gives error: "malformed repeat count"

[Launchpad Bug Tracker]

[Expired for grep (Ubuntu) because there has been no activity for 60
days.]

** Changed in: grep (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/460985

Title:
  grep {,m} construction gives error: "malformed repeat count"

Status in “grep” package in Ubuntu:
  Expired

Bug description:
  Binary package hint: grep

  grep 2.5.4-4 on Karmic amd64

  According to the manual page:
  {,m}   The preceding item is matched at most m times.

  But:
  alex at Ike:~$ echo 23:45.67 | grep '[0-9]\{,2\}:[0-9]\{2\}\.[0-9]\{2\}'
  grep: malformed repeat count
  alex at Ike:~$ echo 23:45.67 | grep '[0-9]\{0,2\}:[0-9]\{2\}\.[0-9]\{2\}'
  23:45.67
  alex at Ike:~$ 

  With -E, the bug is still there, but reported differently:
  alex at Ike:~$ echo 23:45.67 | grep -E '[0-9]{,2}:[0-9]{2}\.[0-9]{2}'
  alex at Ike:~$ echo 23:45.67 | grep -E '[0-9]{0,2}:[0-9]{2}\.[0-9]{2}'
  23:45.67
  alex at Ike:~$ 

  I have used {,m} often enough in the past.  I don't think it was
  broken in Intrepid or Debian Etch.

  ProblemType: Bug
  Architecture: amd64
  Date: Mon Oct 26 18:57:30 2009
  DistroRelease: Ubuntu 9.10
  NonfreeKernelModules: nvidia
  Package: grep 2.5.4-4
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
  SourcePackage: grep
  Uname: Linux 2.6.31-14-generic x86_64

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