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Re: [PATCH] Specify a precision for the length of a subject string

From
Miles Bader <miles@gnu.org>
Date
Dec 23, 2011, 09:41 UTC
Message-ID
<877h1nwrok.fsf@catnip.gol.com>
In-Reply-To
<20111221145352.GB13097@llunet.cs.wisc.edu>
Nathan Panike <nwp@cs.wisc.edu> writes:
Show 12 quoted lines
>> > $ git log --pretty='%h %30s' d165204 -1
>> 
>> In C's formatted output this syntax denotes a minimum field width, not a
>> precision, so it will probably be surprising to many people.
>
> C semantics are already broken because (from git-log(1))
>
> "If you add a - (minus sign) after % of a placeholder, line-feeds that
> immediately precede the expansion are deleted if and only if the placeholder
> expands to an empty string."
>
> rather than indicating justification of the field.
There's no reason to make it _worse_ though...

For your desired feature, why not just use the C printf syntax for this functionality, a leading dot before the max length? E.g. "%.30s".

-miles
-- 
Youth, n. The Period of Possibility, when Archimedes finds a fulcrum,
Cassandra has a following and seven cities compete for the honor of endowing a
living Homer.
Previous: Nathan Panike
Message 15 of 15 in “Specify a precision for the length of a subject string”
  1. Specify a precision for the length of a subject stringNathan W. Panike, Dec 20, 2011
  2. Thomas RastDec 20, 2011
  3. Nathan PanikeDec 20, 2011
  4. Jeff KingDec 21, 2011
  5. Nathan PanikeDec 21, 2011
  6. Jeff KingDec 23, 2011
  7. Jeff KingDec 23, 2011
  8. Junio C HamanoDec 23, 2011
  9. Jeff KingDec 23, 2011
  10. Jeff KingDec 23, 2011
  11. 1/2 pretty: refactor --format "magic" placeholdersJeff King, Dec 23, 2011
  12. 2/2 pretty: allow "max-size" magic for all placeholdersJeff King, Dec 23, 2011
  13. Andreas SchwabDec 21, 2011
  14. Nathan PanikeDec 21, 2011
  15. Miles BaderDec 23, 2011

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