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The metabang-bind lib offers a nice bind macro that solves the problem of ignoring bindings in destructuring-bind, and allows a let* approach to nested destructuring (wven when mixed with let declarations). Using that lib (that we already indirectly depend on anyway) simplifies the parser code substantially.
11 lines
246 B
Common Lisp
11 lines
246 B
Common Lisp
;;;
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;;; Monkey patch metaband-bind macro to ignore nil:
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;;;
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;;; https://github.com/gwkkwg/metabang-bind/issues/9
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;;;
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(in-package #:metabang.bind)
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(defun var-ignorable-p (var)
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(and (symbolp var) (string= (symbol-name var) (symbol-name '_))))
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