Re: Bug#190948: Violation against The Single UNIX ® Specification, Version 2

[Peter Stephenson <pws@csr.com>]

Oliver Kiddle wrote:
> On 27 Apr, Juhapekka Tolvanen wrote:
> > 
> > http://www.opengroup.org/onlinepubs/007908799/xcu/chap2.html#tag_001_014_01
> 1
> > 
> > juhtolv@heresy:/home/juhtolv % set -o vi
> > set: no such option: vi
> 
> Being an interactive related feature, this isn't so critical but it would
> be better if we can handle this. Adding a special case in bin_set()
> instead of actually adding an option might perhaps be sufficient to
> satisfy the specification. However, on the basis that zle is a separate
> module and may not even be loaded and you can't just call selectkeymap(),
> I have no idea how to get this to work. And which keymap should set +o
> vi select?

Exactly, it's completely meaningless in zsh.  It is ridiculous for the
standard to specify how the shell handles line editing, it implies far
too much about the architecture, and I would suggest it actively
encourages poor component design.  Who says a shell *has* to have a
version of vi built into it, for goodness sake?

Although in principle we could handle it I would be quite happy to make
a point of it being a dummy or printing an error message, with a
rationale in the documentation.

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 692070


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