Class: Fd

Inherits:
Object
  • Object
show all
Defined in:
lib/fd.rb,
lib/fd/version.rb

Overview

Here only the VERSION of Fd is defined All other code is in lib/fd.rb

Defined Under Namespace

Classes: Error

Constant Summary collapse

ESCAPE_CHARACTERS = 
%w[␀ ␇ ␈ ␉ ␊ ␋ ␌ ␍ ␡ ␛ ␠].freeze
CHAR_TABLE = 
{
  0 => '␀',
  7 => '␇',
  8 => '␈',
  9 => '␉',
  10 => '␊',
  11 => '␋',
  12 => '␌',
  13 => '␍',
  16 => '␡',
  27 => '␛',
  32 => '␠'
}.freeze
VERSION = 
'1.0.2'

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(line_length) ⇒ Fd

line_length sets how many characters are displayed per @line. Some special non-printable/invisible characters are displayed as their names.

Name

Char val

NULL

0

BEL

7

BS

8

TAB

9

LF

10

VT

11

FF

12

CR

13

DEL

16

ESC

27

__

32



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# File 'lib/fd.rb', line 44

def initialize(line_length)
  unless line_length.is_a?(Integer) && line_length.positive?
    raise ArgumentError,
          "Line width must be a positive integer, was given '#{line_length}'"
  end

  @line_length = line_length
end

Instance Attribute Details

#line_length ⇒ Object (readonly)

Returns the value of attribute line_length.



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# File 'lib/fd.rb', line 26

def line_length
  @line_length
end

Class Method Details

.version ⇒ Object 



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# File 'lib/fd/version.rb', line 9

def self.version
  VERSION
end

Instance Method Details

#add_esc_sequence(chr) ⇒ Object 



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# File 'lib/fd.rb', line 53

def add_esc_sequence(chr)
  "\e[31m#{chr}\e[0m"
end

#dump(content) ⇒ Object

dumps the given file file_name to stdout.



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# File 'lib/fd.rb', line 58

def dump(content)
  raise "Not the expected encoding of UFT-8, got #{content.encoding}" unless content.encoding == Encoding::UTF_8

  initialize_fields(content)
  process_current_character while @char_index < @chars.size
  print_single_line unless line.empty?
end

#dump_file(file_name) ⇒ Object 



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# File 'lib/fd.rb', line 66

def dump_file(file_name)
  puts file_name
  dump(File.read(file_name))
end

#dump_stdin(content) ⇒ Object 



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# File 'lib/fd.rb', line 71

def dump_stdin(content)
  puts 'STDIN'
  dump(content)
end