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Article contents:[[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. The OLD & NEW markers are parameterized. === sexp-diff <procedure>(sexp-diff OLD NEW) -> list</procedure> ; {{OLD}} : {{any}} ; original s-expression ; {{NEW}} : {{any}} ; replacement s-expression === sexp-diff-markers <parameter>(sexp-diff-markers [MARKERS]) -> (list keyword keyword)</parameter> ; {{MARKERS}} : {{(list keyword keyword)}} ; keywords for OLD & NEW. === 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))) (parameterize ((sexp-diff-markers (list #:❌ #:✅))) (sexp-diff '(DEFUN F (X) (+ (* X 2) 4 4 1)) '(DEFUN F (X) (- (* X 2) 5 5 3 1))) ) ==> ((DEFUN F (X) (#:✅ - #:❌ + (* X 2) #:✅ 5 #:✅ 5 #:✅ 3 #:❌ 4 #:❌ 4 1))) === Authors Michael Weber, ported to racket by Vincent St-Amour, ported to CHICKEN by felix winkelmann. CHICKEN 5 by Kon Lovett. === Bugs & Limitations * Does not recognize collections other than {{list}}. === License LGPL === History ; 0.4.0 : Added {{sexp-diff-markers}} ; 0.3.0 : CHICKEN 5 ; 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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