[Bug 520096] Re: for zsh cnf_command is populated with incorrect value

[Alex Jurkiewicz]

** Branch linked: lp:~alex-bluebottle/+junk/cnf-520096

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Title:
  for zsh cnf_command is populated with incorrect value

Status in Automatic command lookup from available packages:
  In Progress
Status in “command-not-found” package in Ubuntu:
  In Progress

Bug description:
  Binary package hint: command-not-found

  for 'echo|cat' cnf_command is assigned value 'echo|cat'. Expected
  assignment is 'echo'.

  Example:

  [ytti at lintukoto ~/tmp/FOO]% ls
  [ytti at lintukoto ~/tmp/FOO]% find|grep foo
  find|grep: command not found
  [1 ytti at lintukoto ~/tmp/FOO]% find |grep foo
  [1 ytti at lintukoto ~/tmp/FOO]% function cnf_preexec() {
  function>         typeset -g cnf_command="${2%% *}"
  function> }
  [ytti at lintukoto ~/tmp/FOO]% find|grep foo          
  [1 ytti at lintukoto ~/tmp/FOO]% 

  
  It is important to test with command which returns non-true value. Above it is unexpected that 'find|grep' is printed with 'command not found' obviously such command does not exist.
  "${1%% *}" appears to want white-space or new line to split, ending command with | will incorrectly continue match further 
  Note, I'm not ZSH literate, I'm not recommending that the fix presented above is used as-is.

  ProblemType: Bug
  Architecture: amd64
  CheckboxSubmission: 27ea4f2fd44978993c33d11dbccf69e2
  CheckboxSystem: b845c366ea09c60efa3a45c1b5b21525
  Date: Wed Feb 10 23:03:46 2010
  DistroRelease: Ubuntu 10.04
  Package: command-not-found 0.2.40ubuntu1
  PackageArchitecture: all
  ProcVersionSignature: Ubuntu 2.6.32-12.17-generic
  SourcePackage: command-not-found
  Uname: Linux 2.6.32-12-generic x86_64

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