From: RichardOnRails <RichardDummyMailbox58407@...>
Date: 2007-12-05T14:45:45+09:00
Subject: Re: Rubyisms wanted to shorten code in search program

On Dec 4, 11:07 am, Robert Klemme <shortcut...@googlemail.com> wrote:
> 2007/12/4, RichardOnRails <RichardDummyMailbox58...@uscomputergurus.com>:
>
>
>
> > Hi,
>
> > Search on WindowsXP/SP2 didn't seem to locate a file is looking for.
> > As someone relatively new to Ruby,  I wonder whether there are any
> > Rubyisms I could have used to cut down the the 80+ lines I took to
> > accomplish this task,  given the USAGE requirement I posed in the
> > code.
>
> > Thanks in Advance,
> > Richard
>
> > # Search.rb
> > # K:/_Projects/Ruby/_Ruby_Tests/TestSearchDir/SearchWithArgs
>
> > # USAGE:  Search.rb -d DirPath [-f regexpFileNameSought] [-t
> > regexpTextSought]
>
> Just a quick hack without command line processing.
>
> dir = ...
> name_regexp = ...  # may be null
> content_regexp = ...  # may be null
>
> require 'find'
>
> Find.find dir do |file|
>   path, base = File.split file
>   next if name_regexp && name_regexp !~ base or
>     content_regexp && context_regexp !~ File.read(file)
>   puts file
> end
>
> For command line processing I'd use OptionParser.
>
> Kind regards
>
> robert

Hi Robert,

Your algorithm's concept is excellent ... just what I hoped to learn
in order to escape my procedural-programming heritage and start to
code like a Rubyist.

> OptionParser

Thanks for that reference.  I'll look into it.

Just for the record,  I had to tweak your code to get your concept
working.  I thought of it as "earning my keep."  Below is my test
code.

Again, thanks for your guidance.

Best wishes,
Richard

dir = 'K:/_Projects/Ruby/_Ruby_Tests'
name_regexp = nil  # may be null
content_regexp = Regexp.new('curArg') # may be null

require 'find'

Find.find dir do |file|
  path, base = File.split file
  next if name_regexp && name_regexp !~ base or
    content_regexp && (!File.file?(file) ||  File.read(file) !~
content_regexp)
  puts file
end