[illumos-Developer] Requesting code review for opensource /usr/xpg4/bin/more replacement with "less" ...

[Adam Leventhal]

Hey Roland,

Apologies if I missed this discussion, but why is this something that
should be in illumos? First less is not the same as more; second, why
wouldn't the downstream distros just include less if that's what they
wanted to do?

Adam

On Mon, Jan 17, 2011 at 6:15 AM, Roland Mainz <roland.mainz at nrubsig.org> wrote:
> Hi!
>
> ----
>
> Below are the webrev(s) which integrate the "less" utility as
> opensource replacement for /usr/xpg4/bin/more. The same webrev
> provides the usual "less" utilities.
>
> The webrev come in two flavors:
>
> 1. "less" compiled with plain regex API:
> http://cr.opensolaris.org/~gisburn/illumos_b520_xpg4more_plainregex/
>
> 2. "less" compiled with an extended regex API which allows alternative
> pattern systems to be used in searches, e.g. (?P)pattern for perl
> pattern, (?Si)pattern for case-insensitive shell patterns etc.:
> http://cr.opensolaris.org/~gisburn/illumos_b520_xpg4more_perlregex/
>
> Notes:
> - The code provides /usr/bin/less, /usr/bin/lessecho and
> /usr/bin/lesskey and a softlink from /usr/xpg4/bin/more to
> ../../bin/less (=/usr/bin/less) as part of the base packages
> - "less" will switch to POSIX "more" mode when launched as "more"
> - The code is compiled with XPG6 flags to make sure XPG[64] version of
> matching libc calls are made (e.g. XPG4 version of |system()|) to
> ensure POSIX conformance.
>
> ToDo:
> - Make a choice which regex engine we'll use
> - There is one issue with multibyte characters I'm currently investigating
> - Integrate review feedback
>
> ----
>
> Bye,
> Roland
>
> --
>   __ .  . __
>  (o.\ \/ /.o) roland.mainz at nrubsig.org
>   \__\/\/__/  MPEG specialist, C&&JAVA&&Sun&&Unix programmer
>   /O /==\ O\  TEL +49 641 3992797
>  (;O/ \/ \O;)
>
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>



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Adam Leventhal, Delphix
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