clone-and-hack coding

from Jargon File (4.4.4, 14 Aug 2003)
clone-and-hack coding
 n.

   [DEC] Syn. {case and paste}.
    
from The Free On-line Dictionary of Computing (8 July 2008)
case and paste
clone-and-hack coding

   <programming> (From "{cut and paste}") The addition of a new
   {feature} to an existing system by selecting the code from an
   existing feature and pasting it in with minor changes.  This
   usually results in gross violation of the fundamental
   programming tenet, {Don't Repeat Yourself}.

   Common in telephony circles because most operations in a
   telephone switch are selected using "case" statements.  Leads
   to {software bloat}.

   In some circles of {Emacs} users this is called "programming
   by Meta-W", because Meta-W is the Emacs command for copying a
   block of text to a {kill buffer} in preparation to pasting it
   in elsewhere.  The term is condescending, implying that the
   programmer is acting mindlessly rather than thinking carefully
   about what is required to integrate the code for two similar
   cases.

   At {DEC}, this is sometimes called "clone-and-hack" coding.

   [{Jargon File}]

   (1996-03-01)
    

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