Class: MascotUtil

Inherits:
Object
  • Object
show all
Defined in:
lib/protk/mascot_util.rb

Class Method Summary collapse

Class Method Details

.index_mgf_times(mgf_file) ⇒ Object

Create a hashtable which maps spectrum references to retention times for an mgf file



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# File 'lib/protk/mascot_util.rb', line 40

def self.index_mgf_times(mgf_file)
 rt_table=Hash.new()
 mgf=File.new(mgf_file)

 mgf.each(sep="END IONS") do |line|

   spec=line.match(/TITLE=(.*?)$/)

   rt=line.match(/RTINSECONDS=(.*?)$/)

   if ( spec!=nil && rt!=nil)
     # Remove charge from the end of the title
     spec_id= remove_charge_from_title_string(spec[1])
     
     rt_table[spec_id]=rt[1]
   end
   
 end

 return rt_table
  
end

.input_basename(dat_file) ⇒ Object

Reads a mascot dat file and returns the basename of the original search file



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# File 'lib/protk/mascot_util.rb', line 7

def self.input_basename(dat_file)

  dat=File.new(dat_file)
  filename=""
  dat.each_line do |line|
    if ( line=~ /^File/i)
      p line
      m=line.match(/^File=.*?[\/\\]?(.*)\.[md][ga][tf]/i)
      if ( m!=nil )
        filename=m[1]
      end
    end
  end

  return filename

end

.remove_charge_from_title_string(tstring) ⇒ Object 



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# File 'lib/protk/mascot_util.rb', line 25

def self.remove_charge_from_title_string(tstring)
  if ( tstring=~/(.*)\..*?\..*?\.$/)
    return tstring.chop
  end
  
  if ( tstring=~/(.*)\..*?\..*?\.\d$/)
    return tstring.chop!.chop
  end
  
  throw "Unrecognised title string format #{tstring}"
  
end