From: David Bremner <david@tethera.net>
Date: Tue, 24 Aug 2021 15:17:41 +0000 (-0700)
Subject: lib/parse-sexp: apply macros
X-Git-Tag: archive/debian/0.34_rc0-1~33
X-Git-Url: https://git.cworth.org/git?a=commitdiff_plain;h=551254eb76c9bb558078f04f21df1f6089cb03d6;hp=551254eb76c9bb558078f04f21df1f6089cb03d6;p=notmuch

lib/parse-sexp: apply macros

Macros implement lazy evaluation and lexical scope.  The former is
needed to make certain natural constructs work sensibly (e.g. (tag
,param)) but the latter is mainly future-proofing in case the DSL is
is extended to allow local bindings.

For technical background, see chapters 6 and 17 of [1] (or some other
intermediate programming languages textbook).

[1] http://cs.brown.edu/courses/cs173/2012/book/
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