Class: File

Inherits:
Object
  • Object
show all
Defined in:
lib/knut_tools/file__END__.rb

Overview

File-extensions for Ruby-scripts.

Inside Ruby-scripts text after __END__ is used like a “internal files”.

Sometimes you want to use this data from other scripts.

This extensions of the File-class allows to open Files, starting at __END__.

Details see

  • File.open_after_END

  • File.readlines_after_END

  • File.each_line_after_END

Class Method Summary collapse

Class Method Details

.each_line_after_END(filename) ⇒ Object

Get all lines after __END__.

Example:

File.each_line_after_END('testdata/hello_world.rb'){|line|
  #... lines after __END__
}

or

textarray = File.each_line_after_END('testdata/hello_world.rb')



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# File 'lib/knut_tools/file__END__.rb', line 75

def each_line_after_END( filename )
	f = open_after_END( filename )
   res = true
   if block_given?
     res = f.each_line{|line| yield line }
   else
     res = f.readlines
   end
   f.close
   return res
end

.open_after_END(filename) ⇒ Object

This methods behave like File#open, but it starts after __END__

Example:

filehandle = File.open_after_END('testdata/hello_world.rb')
filehandle.eachline{|line|
  ... #text after __END__
}
filehandle.close

or better:

File.open_after_END('testdata/hello_world.rb'){|filehandle|
  filehandle.eachline{|line|
    ... #text after __END__
  }
}



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# File 'lib/knut_tools/file__END__.rb', line 35

def open_after_END( filename )
	f = File.new(filename, 'r')
	if filename =~ /\.rbw?\Z/
		line = nil
		while line !~ /^__END__\n/ and ! f.eof?
			line = f.readline
		end
	end
	
   if block_given?
     #~ f.each_line{|line| yield line }
     yield f
   else
     return f      
   end #block_given?
end

.readlines_after_END(filename) ⇒ Object

Return content of script after __END__

Example:

File.readlines_after_END('testdata/hello_world.rb').each{|line|
  #...
}



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# File 'lib/knut_tools/file__END__.rb', line 59

def readlines_after_END( filename )
	f = open_after_END( filename )
	txt = f.readlines.join
	f.close
	return txt
end