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The search service can find package by either name (apache), provides(webserver), absolute file names (/usr/bin/apache), binaries (gprof) or shared libraries (libXm.so.2) in standard path. It does not support multiple arguments yet...
The System and Arch are optional added filters, for example System could be "redhat", "redhat-7.2", "mandrake" or "gnome", Arch could be "i386" or "src", etc. depending on your system.
Object::Lexical provides syntactic sugar to create objects. Normal "my" variables are used for instance data. $this is automatically read off of the argument stack. This follows "real" OO languages, where user code need not concern itself with helping the language implement objects. Normal OO Perl code is ugly, hard to read, tedious to type, and error prone. The "$self-"{field}> syntax is cumbersome, and using an object field with a built in, like "push()", requires syntax beyond novice Perl programmers: "push @{$self-"{field}}, $value>. Spelling field names wrong results in hard to find bugs: the hash autovivicates, and no "variables must be declared" warning is issued.
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