CMU Artificial Intelligence Repository
SLOOP: William Schelter's SLOOP iteration facility.
SLOOP is a Common Lisp portable iteration facility written by William
Schelter. SLOOP is extremely user extensible, allowing one to easily
redefine the behavior and add additional collections and iteration
paths. There is a significant amount of backwards compatibility with
the original MIT loop macro.
The file includes several examples of extensions, such as
.. FOR v IN-FRINGE x .. (iterate through the fringe of a tree x)
.. SUM v .. (add the v)
.. AVERAGING v ..
.. FOR sym IN-PACKAGE y (iterate through symbols in a package y)
.. COLLATE v .. (for collecting X into an ordered list),
.. FOR (elt i) IN-ARRAY ar (iterate through array ar, with index i)
.. FOR (key elt) IN-TABLE foo.. (if foo is a hash table)
Copying: Copying and use allowed. Modification not allowed.
Copyright (c) 1985, 1986 by William Schelter.
The behavior of the SLOOP macro may be changed after
loading by resetting some of the global variables near
the beginning of the file. But changes to the file
itself are prohibited.
CD-ROM: Prime Time Freeware for AI, Issue 1-1
Bug Reports: email@example.com
Author(s): William Schelter, firstname.lastname@example.org
Authors!Schelter, Iteration!SLOOP Macro, Lisp!Iteration,
Last Web update on Mon Feb 13 10:30:05 1995