23 S-Expression Diff

1	Guidelines for developing unstable libraries
2	Bytes
3	Classes and Objects
4	Contracts
5	Definitions
6	Dictionaries
7	Directories
8	Exceptions
9	Filesystem
10	Functions
11	Lists
12	Net
13	Path
14	PLane T Packages
15	Ports
16	Pretty-Printing
17	Imperative Queues
18	Regular Expressions
19	Requiring Modules
20	Sandboxed Evaluation
21	Scribble Documentation
22	Sets
23	S-Expression Diff
24	Source Locations
25	Strings
26	Structs
27	Syntax
28	Planet Package Macros
29	Text Representations
30	Multiple Values
31	XML and CSS
32	Polymorphic Contracts
33	Finding Mutated Variables
34	Find
35	Interface-Oriented Programming for Classes
36	Sequences
37	Hash Tables
38	Match
39	Skip Lists
40	Interval Maps
41	Generics
42	Mark Parameters
43	Debugging
44	GUI libraries

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This library is unstable; compatibility will not be maintained. See Unstable for more information.

(sexp-diff old-tree new-tree) → any/c

old-tree : any/c

new-tree : any/c

Takes two S-Expressions and returns their diff. Based on the Levenshtein distance for trees.

Example:
> (sexp-diff '(0 (1 2 3)) '(0 (4 2 3)))
'((0 (#:new 4 #:old 1 2 3)))