Class: Ms::Mascot::Load::Mgf

Inherits:
Tap::Tasks::Load
  • Object
show all
Defined in:
lib/ms/mascot/load/mgf.rb

Overview

:startdoc::task loads entries from an mgf file

Load entries from an mgf file. A selector may be specified to select only a subset of entries; by default all entries in the mgf file are returned.

% tap run -- mgf/load --select 1 < MGF_FILE
% tap run -- mgf/load --select 1..10 < MGF_FILE

Entries are always returned as an array, even when the selecton is for a single entry.

Constant Summary collapse

Archive = 
Ms::Mascot::Mgf::Archive

Instance Method Summary collapse

Instance Method Details

#load(arc) ⇒ Object 



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# File 'lib/ms/mascot/load/mgf.rb', line 63

def load(arc)
  case select
  when Integer
    entry = arc[select]
    filter.ok?(entry) ? [entry] : []
  when Range
    filter.filter!(arc[select])
  when Array 
    filter.filter!(arc[*select])
  when nil 
    arc.select {|entry| filter.ok?(entry) }
  end
end

#open_io(input) ⇒ Object 



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# File 'lib/ms/mascot/load/mgf.rb', line 50

def open_io(input)
  if input.kind_of?(String)
    Archive.open(input) {|io| yield(io) }
  else
    super(input) do |io|
      arc = Archive.new(io)
      result = yield(arc)
      arc.close
      result
    end
  end
end