Sugaring Lisp for the 21st Century
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This document summarizes a talk on sugaring Lisp for the 21st century. It discusses common complaints about Common Lisp including a lack of standard libraries and threading support. It also describes efforts to modernize Common Lisp like CDR and CL21. Additionally, it introduces RUTILS, a package of over 250 symbols that aims to be backward compatible, practical, and modular in evolving Common Lisp. The document encourages attendees to use RUTILS directly or borrow its ideas and discusses some open issues.
Sugaring Lisp for the 21st Century
- 1. Sugaring Lisp for the 21st Century Vsevolod Dyomkin @vseloved European Lisp Symposium 2016-05-09
- 2. Common Complaints about Common Lisp (from the POV of outsiders) * No libraries * No threads, sockets, whatever in the standard * “Historical cruft” (poor names, verbosity, inconsistency, lack of modularity, not generic enough etc.)
- 3. “Modernization” Efforts * CDR https://common-lisp.net/project/cdr/ Common Lisp Document Repository * cltl3 http://ilc2009.scheming.org/node/48 “Codifying Modern Common Lisp” * cl21 https://github.com/cl21/cl21 “Common Lisp in the 21st Century”
- 4. Beyond Utilities Default solution utilities– (http://cliki.net/utilities - 36 entries of which at least 10+ are general-purpose ones). Most don't go far enough added– value is only convenience, not language evolution and growth
- 5. RUTILS est. 2009 14 core + 7 contrib packages ~ 250 exported symbols (cf. ~1000 symbols in package CL) * backward-compatible * practical * modular * pro-choice https://github.com/vseloved/rutils
- 6. (defmethod select-transition ((parser amrparser) graph) (with (((stack buffer) @ parser)) (s0 (? stack 0)) (b0 (? buffer 0))) (flat-map (lambda (k) (unless (or (in# (pair k b0) graph) (in# (pair b0 k) graph)) (let ((fs (append common-fs (extract-fs parser nil s0 b0)))) (mapcar ^(make-trans :fn % :fs fs) '(amr:reattach amr:reenter))))) (set-difference @parser.tokens (list nil s0 b0)))))) CL-USER> (select-transition (make 'parser) #h(equal)) Example Code
- 7. How You Can Benefit * Use it ;; conventional way (ql:quickload :rutils) (use-package :rutils) (named-readtables:in-readtable rutils-readtable) ;; radical way (ql:quickload :rutilsx) (use-package :rutilsx) (named-readtables:in-readtable rutilsx-readtable)
- 8. How You Can Benefit * Use parts of it (use-package :rutilsx.threading) * Borrow ideas ...like cl21 did usually called cross- pollination
- 9. Open Issues How to gracefully handle: * map/mapcar * slot-value names across packages in @obj.slot