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Old 04-29-2009
Line 2238 Unix V6 Comment: You are not expected to understand this.
Here is the famous line 2238 of Unix V6 which is part of some of the most delicate parts of the kernel, context switching.

This comment received huge publicity and just may be the the most famous source code comment in computing history.

Code:
2230	/*
2231	 * If the new process paused because it was
2232	 * swapped out, set the stack level to the last call
3333	 * to savu(u_ssav).  This means that the return
2235	 * actually returns from the last routine which did
2236	 * the savu.
2237	 *
2238	 * You are not expected to understand this.
2239	 */
2240	if(rp->p_flag&SSWAP) {
2241		rp->p_flag =& ~SSWAP;
2242		aretu(u.u_ssav);
2243	}

Ref: Unix Sixth Edition Kernel Source Code, © Western Electric Company
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LEARN ABOUT DEBIAN

bio::annotation::comment

Bio::Annotation::Comment(3pm)				User Contributed Perl Documentation			     Bio::Annotation::Comment(3pm)

NAME

       Bio::Annotation::Comment - A comment object, holding text

SYNOPSIS

	   $comment = Bio::Annotation::Comment->new();
	   $comment->text("This is the text of this comment");
	   $annotation->add_Annotation('comment', $comment);

DESCRIPTION

       A holder for comments in annotations, just plain text. This is a very simple object, and justifiably so.

AUTHOR - Ewan Birney
       Email birney@ebi.ac.uk

APPENDIX

       The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _

   new
	Title	: new
	Usage	: $comment = Bio::Annotation::Comment->new( '-text' => 'some text for this comment');
	Function: This returns a new comment object, optionally with
		  text filed
	Example :
	Returns : a Bio::Annotation::Comment object
	Args	: a hash with -text optionally set

AnnotationI implementing functions
   as_text
	Title	: as_text
	Usage	:
	Function:
	Example :
	Returns :
	Args	:

   display_text
	Title	: display_text
	Usage	: my $str = $ann->display_text();
	Function: returns a string. Unlike as_text(), this method returns a string
		  formatted as would be expected for te specific implementation.

		  One can pass a callback as an argument which allows custom text
		  generation; the callback is passed the current instance and any text
		  returned
	Example :
	Returns : a string
	Args	: [optional] callback

   hash_tree
	Title	: hash_tree
	Usage	:
	Function:
	Example :
	Returns :
	Args	:

   tagname
	Title	: tagname
	Usage	: $obj->tagname($newval)
	Function: Get/set the tagname for this annotation value.

		  Setting this is optional. If set, it obviates the need to
		  provide a tag to Bio::AnnotationCollectionI when adding
		  this object. When obtaining an AnnotationI object from the
		  collection, the collection will set the value to the tag
		  under which it was stored unless the object has a tag
		  stored already.

	Example :
	Returns : value of tagname (a scalar)
	Args	: new value (a scalar, optional)

Specific accessors for Comments
   text
	Title	: text
	Usage	: $value = $self->text($newval)
	Function: get/set for the text field. A comment object
		  just holds a single string which is accessible through
		  this method
	Example :
	Returns : value of text
	Args	: newvalue (optional)

   value
	Title	: value
	Usage	: $value = $self->value($newval)
	Function: Alias of the 'text' method
	Example :
	Returns : value of text
	Args	: newvalue (optional)

   type
	Title	: type
	Usage	: $value = $self->type($newval)
	Function: get/set for the comment type field.  The comment type
		  is normally found as a subfield within comment sections
		  in some files, such as SwissProt
	Example :
	Returns : value of text
	Args	: newvalue (optional)

perl v5.14.2							    2012-03-02					     Bio::Annotation::Comment(3pm)