ARGFy - a more flexible ARGF

This class is a more flexible version of the ARGF global. The constructor takes an array, a list of files, and processes them like one constant stream of input. Reading from the stream is always line by line either all at once using each or one at a time using gets.

Attributes

Internal states can help your program understand what was processed when you pull any line:

• lineno - line number of the entire stream
• filelineno - line number of the current file
• filename - current file being processed

Example

This is a simple program that prints out each file with a simple header when the input files change. It shows the main advantage of this class over ARGF.

    require 'ARGFy'

    argf = ARGFy.new(ARGV)
    argf.each do |line|

      # Per File Header
      if argf.new_file?
        filename = argf.filename
        filename = "STDIN" if filename == "-"
        puts '', filename, "-"*filename.length
      end

      # Print out the line with line numbers
      puts "%3d: %s" % [argf.filelineno, line]

    end

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