*in* is a Reader, not a map

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(map? *in*) was true because *in* was a plain map of read-line-fn/read-fn
closures; the JVM *in* is a java.io.Reader so map? is false. A defrecord
doesn't help (records are maps). Make the reader a reify over a new IReader
protocol — a non-map value — and route read/read-line/read+string/line-seq
through its -read-line/-read-form/-read+string methods instead of keyword
access. with-in-str's __string-reader and the stdin *in* both reify it.
Closes *in*-bound + *in*-is-bound.

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Yogthos 2026-06-21 23:45:24 -04:00

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