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Re: compatibility with Sun's original vi for command :su

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  • Marcin Szamotulski
    ... Hi, You can use my command alias plugin and type :su and get :suspend: http://www.vim.org/scripts/script.php?script_id=4250 (it is also on github:
    Message 1 of 7 , Jun 25, 2013
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      On 22:54 Tue 25 Jun , Bram Moolenaar wrote:
      >
      > Christian Brabandt wrote:
      >
      > > On Mon, June 24, 2013 23:54, Paul Maier wrote:
      > > > Hi,
      > > >
      > > > the original vi on Sun took :su as :suspend,
      > > > whereas vim takes :su as :substitute.
      > > >
      > > > I am very used to typing :su.
      > > >
      > > > Would it be possible for VIM 7.4 to add a new compatibility flag to
      > > > cpoptions
      > > > about the meaning of :su ?
      > > >
      > > > suggested compatible flag: :su = :suspend, :s = :substitute
      > > > without the flag: :su = :substitute
      > > >
      > >
      > > Looks like a bug to me. POSIX also requires :su to be used for
      > > :suspend (http://pubs.opengroup.org/onlinepubs/007908799/xcu/ex.html)
      > >
      > > Do we need a new cpo setting here, or should it be enough to
      > > patch vim to take :su as :suspend?
      >
      > The POSIX spec has a bug: it says that :s means :substitute, which means
      > anything starting with :s means :substitute, including :su. But then
      > :suspend can be abbreviated to :su, that's a conflict.
      >
      > Relevant quotes:
      >
      > For each of the commands listed below, the command can be
      > entered as the abbreviation (those characters in the Synopsis
      > command word preceding the [), the full command (all characters
      > shown for the command word, omitting the [ and ]), or any subset
      > of the characters of the full command down to the abbreviation.
      > For example, the args command (shown as ar[gs] in the Synopsis)
      > can be entered as ar, arg or args.
      >
      > [...]
      >
      > Substitute
      >
      > Synopsis: [range] s[ubstitute] [/pattern/repl/[options] [count] [flags]]
      >
      > [...]
      >
      > Suspend
      >
      > Synopsis: su[spend][!]
      >
      >
      > Making an exception for :su to mean :suspend instead of :substitute
      > would be weird.

      Hi,

      You can use my command alias plugin and type :su and get :suspend:

      http://www.vim.org/scripts/script.php?script_id=4250

      (it is also on github: https://github.com/coot/cmdalias_vim)

      Best regards,
      Marcin

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