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Article contents:== Outdated egg! This is an egg for CHICKEN 4, the unsupported old release. You're almost certainly looking for [[/eggref/5/sexp-diff|the CHICKEN 5 version of this egg]], if it exists. If it does not exist, there may be equivalent functionality provided by another egg; have a look at the [[https://wiki.call-cc.org/chicken-projects/egg-index-5.html|egg index]]. Otherwise, please consider porting this egg to the current version of CHICKEN. [[tags: egg]] [[toc:]] == sexp-diff === Introduction Diffs s-expressions based on Levenshtein-like edit distance. === Documentation DIFF-SEXP computes a diff between two s-expressions which minimizes the number of atoms in the result tree, also counting edit conditionals #:new, #:old. === Examples (sexp-diff '(DEFUN F (X) (+ (* X 2) 1)) '(DEFUN F (X) (- (* X 2) 3 1))) ==> ((DEFUN F (X) (#:new - #:old + (* X 2) #:new 3 1))) (sexp-diff '(DEFUN F (X) (+ (* X 2) 4 1)) '(DEFUN F (X) (- (* X 2) 5 3 1))) ==> ((DEFUN F (X) (#:new - #:old + (* X 2) #:new 5 #:new 3 #:old 4 1))) (sexp-diff '(DEFUN F (X) (+ (* X 2) 4 4 1)) '(DEFUN F (X) (- (* X 2) 5 5 3 1))) ==> ((DEFUN F (X) (#:new - #:old + (* X 2) #:new 5 #:new 5 #:new 3 #:old 4 #:old 4 1))) === Authors Michael Weber, ported to racket by Vincent St-Amour, ported to CHICKEN by felix winkelmann. === License LGPL === History * 0.2.1 Fixed tests (correct exit status) * 0.2 Fixed meta file (added category) * 0.1 Initial import Description of your changes:

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