From: "ara.t.howard" <ara.t.howard@...>
Date: 2007-11-18T12:17:11+09:00
Subject: Re: Readline + completion of "all files in current directory"


On Nov 17, 2007, at 8:50 AM, Marc Heiler wrote:

> I am having a hard time understanding readline. If i have a list of
> possible matches for given files (and subdirectories) in a directory,
> how can I make readline work with that, so that i can type something
> like:
>
> some_method r<TAB>
>
> where some_method would be just a method, and "r" a file in current
> directory (ie. rx.rb ry.rb rz.rb files)
>
> Readline.completion_proc = proc do |word|
>   Dir['*'].grep(/\A#{Regexp.quote(word)}/)
> end
> Readline.completion_case_fold = true
> # hmm

cfp:~ > cat a.rb
require 'readline'

class File
   def self.tab arg, prompt = 'directory > '
     candidates = Array === arg ? candidates : Dir[arg]
     Readline.completion_proc = lambda do |abbrev|
       list = candidates.select{|candidate| candidate.index(abbrev)  
== 0}
       list = list.empty? ? candidates : list
     end
     Readline.readline prompt
   end
end

p File.tab('*').strip


cfp:~ > ruby a.rb
directory > s<tab>
sane_transactions.rb  sfctmp.rb             site                   
spadoc_watch          src                   sudo
sciruby               sif_nighttime_drop    source                 
sqlite.sh             ss.png                svn
directory > si<tab>
sif_nighttime_drop  site
directory > site
"site"


a @ http://codeforpeople.com/
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