# Test the "emulate" builtin and related functions.

%prep

  isset() { 
    if [[ -o $1 ]]; then print yes; else print no; fi
  }
  showopts() {
      # Set for Bourne shell emulation
      isset shwordsplit
      # Set in native mode and unless "emulate -R" is in use
      isset banghist
  }

%test

  (showopts
  fn() {
     emulate sh
  }
  fn
  showopts)
0:Basic use of emulate
>no
>yes
>yes
>yes

  fn() {
    emulate -L sh
    showopts
  }
  showopts
  fn
  showopts
0:Use of emulate -L
>no
>yes
>yes
>yes
>no
>yes

  (showopts
  emulate -R sh
  showopts)
0:Use of emulate -R
>no
>yes
>yes
>no

  showopts
  emulate sh -c 'showopts'
  showopts
0:Use of emulate -c
>no
>yes
>yes
>yes
>no
>yes


  showopts
  emulate -R sh -c 'showopts'
  showopts
0:Use of emulate -R -c
>no
>yes
>yes
>no
>no
>yes