How to search ONLY in package names, without descriptions?

Question

Hello!
I would like to know how I can search with pacman only in the package names, without searching descriptions?
For example, searching for the rar package (pacman -Ss rar) gives me tons of results with hundreds of packages, where "library" occurs in the description.
I have already read the pacman manual page, but I couldn't find anything suitable.
Greets, Horst

Answer 1

perl -e '$search = "rar";$output=`pacman -Ss $search`;while($output=~/^(\S.*?\Q$search\E.*?\n(?:\s.*\n)*)/mgi){print $1}'
This does the normal "pacman -Ss whatever" search, but then it checks that the search term is in the package name. Just replace "rar" in "$search = "rar" with whatever you want to search for.
I tried to make it work with grep using -P, but I still don't know how to make it case-insensitive then ("-i" doesn't seem to work with perl regexes). Here it is anyway though:
pacman -Ss rar | grep -P "^\S.*?rar(?:.*|\n)*?(?=\n\S)"
Aside from being case-sensitive, you also have to replace both instances of "rar" with your search term.
Here's a script version that you can run from the command line:
#!/usr/bin/perl
use strict;
use warnings;
my $search = "@ARGV";
my $output = '';
open(my $pipe,'-|',"pacman -Ss $search") or die "Unable to create pipe to pacman: $!\n";
while (defined(my $line=<$pipe>)){$output.=$line;}
close $pipe;
while($output=~/^(\S.*?\Q$search\E.*?\n(?:\s.*\n)*)/mgi){print $1};
Save it as "search_pkgnames", make it executable, then invoke it with your search term: search_pkgnames rar
Hope this helps.