--- Begin Message ---
Package: apt
Version: 0.9.7.6
Severity: normal
Dear Maintainer,
In lines #146 & #147 below, the docs explain that 'search' supports 'AND':
% man apt-cache | grep -B 1 -A 10 -n "search performs"
136- search regex...
137: search performs a full text search on all available package lists
138- for the POSIX regex pattern given, see regex(7). It searches the
139- package names and the descriptions for an occurrence of the regular
140- expression and prints out the package name and the short
141- description, including virtual package names. If --full is given
142- then output identical to show is produced for each matched package,
143- and if --names-only is given then the long description is not
144- searched, only the package name is.
145-
146- Separate arguments can be used to specify multiple search patterns
147- that are and'ed together.
However, that built-in 'AND' misses items found with combined
separate searches:
# built-in 'AND':
% apt-cache search foo bar | sort > /tmp/x1
# simulate 'AND' with "sort | uniq -d":
% { apt-cache search foo ; apt-cache search bar ; } | sort | uniq -d > /tmp/x2
# show what the built-in 'AND' missed:
% diff /tmp/x[12]
9a10,11
> libart-2.0-2 - Library of functions for 2D graphics - runtime files
> libart-2.0-dev - Library of functions for 2D graphics - development files
HTH...
-- Package-specific info:
-- (no /etc/apt/preferences present) --
-- (/etc/apt/sources.list present, but not submitted) --
-- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 3.2.0-4-686-pae (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) (ignored: LC_ALL set to C)
Shell: /bin/sh linked to /bin/dash
Versions of packages apt depends on:
ii debian-archive-keyring 2012.4
ii gnupg 1.4.12-6
ii libapt-pkg4.12 0.9.7.6
ii libc6 2.13-35
ii libgcc1 1:4.7.1-4
ii libstdc++6 4.7.1-4
apt recommends no packages.
Versions of packages apt suggests:
pn apt-doc <none>
ii dpkg-dev 1.16.8
ii python-apt 0.8.6
ii synaptic 0.75.13
ii xz-utils 5.1.1alpha+20120614-1
-- debconf-show failed
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--- Begin Message ---
On Thu, Oct 25, 2012 at 10:15 PM, A. Costa <agcosta@gis.net> wrote:
> However, that built-in 'AND' misses items found with combined
> separate searches:
True. And that is intentional as combining two separate searches
is a logical OR and not an AND as the combined list includes packages
which match "foo" but not "bar".
E.g. libart-2.0-2 is not included as it matches "foo(tprint)", but not "bar".
If you want OR you can use the usual regex syntax for that.
Closing therefore as not-a-bug.
Best regards
David Kalnischkies
--- End Message ---