elm-city-craftworks / rcat Goto Github PK

➜  rcat git:(master) ✗ cat /etc/linuxmint/info | grep GRUB_TITLE
GRUB_TITLE=Linux Mint 18.1 Cinnamon 64-bit
➜  rcat git:(master) ✗ ruby tests.rb 
tests.rb:81:in `<main>': Failed 'cat -ns [f1 f2] == rcat -ns [f1 f2]' (RuntimeError)
➜  rcat git:(master) ✗ cat -ns data/gettysburg.txt data/spaced_out.txt 
     1	Four score and seven years ago our fathers brought forth on this continent, a
     2	new nation, conceived in Liberty, and dedicated to the proposition that all men
     3	are created equal.
     4	
     5	Now we are engaged in a great civil war, testing whether that nation, or any
     6	nation so conceived and so dedicated, can long endure. We are met on a great
     7	battle-field of that war. We have come to dedicate a portion of that field, as a
     8	final resting place for those who here gave their lives that that nation might
     9	live. It is altogether fitting and proper that we should do this.
    10	
    11	But, in a larger sense, we can not dedicate -- we can not consecrate -- we can
    12	not hallow -- this ground. The brave men, living and dead, who struggled here,
    13	have consecrated it, far above our poor power to add or detract. The world will
    14	little note, nor long remember what we say here, but it can never forget what
    15	they did here. It is for us the living, rather, to be dedicated here to the
    16	unfinished work which they who fought here have thus far so nobly advanced. It
    17	is rather for us to be here dedicated to the great task remaining before us --
    18	that from these honored dead we take increased devotion to that cause for which
    19	they gave the last full measure of devotion -- that we here highly resolve that
    20	these dead shall not have died in vain -- that this nation, under God, shall
    21	have a new birth of freedom -- and that government of the people, by the people,
    22	for the people, shall not perish from the earth.
    23	Now we are engaged in a great civil war, testing whether that nation, or any
    24	
    25	nation so conceived and so dedicated, can long endure. We are met on a great
    26	
    27	battle-field of that war. We have come to dedicate a portion of that field, as a
    28	
    29	final resting place for those who here gave their lives that that nation might
    30	
    31	live. It is altogether fitting and proper that we should do this.
➜  rcat git:(master) ✗ rcat -ns data/gettysburg.txt data/spaced_out.txt 
     1	Four score and seven years ago our fathers brought forth on this continent, a
     2	new nation, conceived in Liberty, and dedicated to the proposition that all men
     3	are created equal.
     4	
     5	Now we are engaged in a great civil war, testing whether that nation, or any
     6	nation so conceived and so dedicated, can long endure. We are met on a great
     7	battle-field of that war. We have come to dedicate a portion of that field, as a
     8	final resting place for those who here gave their lives that that nation might
     9	live. It is altogether fitting and proper that we should do this.
    10	
    11	But, in a larger sense, we can not dedicate -- we can not consecrate -- we can
    12	not hallow -- this ground. The brave men, living and dead, who struggled here,
    13	have consecrated it, far above our poor power to add or detract. The world will
    14	little note, nor long remember what we say here, but it can never forget what
    15	they did here. It is for us the living, rather, to be dedicated here to the
    16	unfinished work which they who fought here have thus far so nobly advanced. It
    17	is rather for us to be here dedicated to the great task remaining before us --
    18	that from these honored dead we take increased devotion to that cause for which
    19	they gave the last full measure of devotion -- that we here highly resolve that
    20	these dead shall not have died in vain -- that this nation, under God, shall
    21	have a new birth of freedom -- and that government of the people, by the people,
    22	for the people, shall not perish from the earth.
     1	Now we are engaged in a great civil war, testing whether that nation, or any
     2	
     3	nation so conceived and so dedicated, can long endure. We are met on a great
     4	
     5	battle-field of that war. We have come to dedicate a portion of that field, as a
     6	
     7	final resting place for those who here gave their lives that that nation might
     8	
     9	live. It is altogether fitting and proper that we should do this.
➜  rcat git:(master) ✗ 

module RCat
  class Display
    def initialize(params)
      @line_numbering_style   = params[:line_numbering_style]
      @squeeze_extra_newlines = params[:squeeze_extra_newlines]
      @line_number = 1 # works here!
    end

    def render(data)
      # Causes -ns to fail
      # @line_number = 1

      #lines is an enumerator
      lines = data.each_line
      loop { render_line(lines) }
    end