Class: Miniparse::Command

Inherits:
Object
  • Object
show all
Defined in:
lib/miniparse/command.rb

Direct Known Subclasses

Option

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args, &block) ⇒ Command

uses args:

:spec
:desc

Raises:

  • (SyntaxError) 


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# File 'lib/miniparse/command.rb', line 17

def initialize(args, &block)
  @spec = args.fetch(:spec) 
  @desc = args[:desc] 
  @block = block
  @name = self.class.spec_to_name(spec)
  raise SyntaxError, "invalid specification '#{spec}'"    if name.nil?
  post_initialize(args)
end

Instance Attribute Details

#desc ⇒ Object (readonly)

Returns the value of attribute desc.



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# File 'lib/miniparse/command.rb', line 12

def desc
  @desc
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/miniparse/command.rb', line 12

def name
  @name
end

Class Method Details

.spec_to_name(spec) ⇒ Object 



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# File 'lib/miniparse/command.rb', line 7

def self.spec_to_name(spec)
  spec_pattern_to_name(spec, /\A(\w[\w-]*)\z/)
end

.valid_spec(*args) ⇒ Object 



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# File 'lib/miniparse/command.rb', line 10

def self.valid_spec(*args); spec_to_name(*args); end

Instance Method Details

#check(arg) ⇒ Object 



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# File 'lib/miniparse/command.rb', line 35

def check(arg)
  arg.to_s == name.to_s
end

#help_desc ⇒ Object 



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# File 'lib/miniparse/command.rb', line 40

def help_desc
  return nil    unless desc
  
  separator = '  '
  width_indent = Miniparse.control(:width_indent)
  width_left = Miniparse.control(:width_left) -
               Miniparse.control(:width_indent)
  width_right = Miniparse.control(:width_display) - 
                separator.size -
                Miniparse.control(:width_left)

  if Miniparse.control(:formatted_help)
    lines = WordWrap.two_cols_word_wrap_lines(
            spec.to_s + add_spec, separator, 
            desc + add_desc,
            width_left, width_right)
    lines.collect! { |line|  " "*width_indent + line  }
    lines.join("\n")
  else
    s = "%*s" % [width_indent, separator]
    s += "%-*s" % [width_left, spec.to_s + add_spec]
    s += '  '
    s += desc + add_desc
  end
end

#run(*args) ⇒ Object

runs the associated block with specified arguments



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# File 'lib/miniparse/command.rb', line 29

def run(*args)
  block.call(*args)    if block 
end