Class: Lf::Option

Inherits:
OptionParser
  • Object
show all
Defined in:
lib/lf/option.rb

Constant Summary collapse

SUPPORTED_FORMATS = 
Lf::Formatter::FORMATTERS.keys

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(argv, stdin, stdout) ⇒ Option

Returns a new instance of Option.



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# File 'lib/lf/option.rb', line 13

def initialize(argv, stdin, stdout)
  super()
  @argv, @input, @output = argv.dup, stdin, stdout
  @options = {
    format: 'ltsv'
  }
  @filters = []

  configure_options
end

Instance Attribute Details

#argv ⇒ Object (readonly)

Returns the value of attribute argv.



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# File 'lib/lf/option.rb', line 24

def argv
  @argv
end

#filters ⇒ Object (readonly)

Returns the value of attribute filters.



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# File 'lib/lf/option.rb', line 24

def filters
  @filters
end

#input ⇒ Object (readonly)

Returns the value of attribute input.



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# File 'lib/lf/option.rb', line 24

def input
  @input
end

#output ⇒ Object (readonly)

Returns the value of attribute output.



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# File 'lib/lf/option.rb', line 24

def output
  @output
end

Class Method Details

.parse(*args) ⇒ Object 



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# File 'lib/lf/option.rb', line 9

def self.parse(*args)
  new(*args).tap { |option| option.parse!(option.argv) }
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/lf/option.rb', line 46

def [](key)
  @options[key]
end
 


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# File 'lib/lf/option.rb', line 30

def banner
  'Usage: lf [options] <filters ...> [file]'
end

#parse! ⇒ Object 



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# File 'lib/lf/option.rb', line 39

def parse!(*)
  super

  @input = open(@argv.pop, 'r') if File.file?(@argv.last.to_s)
  @filters = Lf::Filter.parse(@argv)
end

#show_help ⇒ Object 



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# File 'lib/lf/option.rb', line 34

def show_help
  output.puts self
  exit 1
end

#version ⇒ Object 



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# File 'lib/lf/option.rb', line 26

def version
  Lf::VERSION
end