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| author | David Bremner <david@tethera.net> | 2021-08-24 08:17:41 -0700 |
|---|---|---|
| committer | David Bremner <david@tethera.net> | 2021-09-04 17:07:19 -0700 |
| commit | 551254eb76c9bb558078f04f21df1f6089cb03d6 (patch) | |
| tree | 4c2e99bf8a1e387d1b7ac4f1943410c3f22a844f /notmuch.c | |
| parent | 3eca7fcf10a63e642e627539442271872fca58fd (diff) | |
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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