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mes: Support optional port on read. 

* mes/module/mes/scm.mes (read): Support optional port on read.
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Jan (janneke) Nieuwenhuizen 2019-05-16 00:05:47 +02:00 committed by Jan Nieuwenhuizen
parent e0eee55bf3
commit b969c08205
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1 changed files with 6 additions and 0 deletions
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mes/module/mes/scm.mes
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@ -85,6 +85,12 @@
(define integer? number?)
(define (read . port)
(if (null? port) (read-env (current-module))
(let* ((prev (set-current-input-port (car port)))
(result (read-env (current-module))))
result)))
(if (not (defined? 'peek-char))
(define (peek-char)
(integer->char (peek-byte))))