From: Gavin Sinclair <gsinclair@...>
Date: 2011-12-09T17:58:42+09:00
Subject: Re: reading from file without end-of-lines

> i'm trying to read a few text values from single file:
>
>  if File.exists?(file)
>      File.open(file, 'r+') do |f|
>        value1 = f.gets.strip
>        value2 = f.gets.strip
>        value3 = f.gets.strip
>        value4 = f.gets.strip
>      end
>    end
>
> each value is stored in separate line and 'strip' above is used only to
> get rid of end-of-line characters. is there any easier way to do the same?

I tend to strip out all such characters at once, before operating on any line.

  File.readlines(file).map { |line| line.strip }.each do |line|
    ...
  end

In your case, I guess that would be

  lines = File.readlines(file).map { |line| line.strip }
  value1 = lines.shift
  value2 = lines.shift
  # etc.
  # or
  v1, v2, v3, v4 = lines.shift(4)