suzanne.soy/compatibility
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support progress evts in result of `make-limited-input-port'

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and also adjust initial position in various port constructions
 to use `file-position' instead of `port-next-location'

original commit: a9190621439b8bf8ecace2fd9e81217dcaed808d
This commit is contained in:
Matthew Flatt 2011-06-16 09:18:47 -06:00
parent 670f2ea435
commit 39d1cf4635
1 changed files with 12 additions and 11 deletions
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23
collects/mzlib/port.rkt
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@ -529,8 +529,7 @@
(lambda (n evt target-evt) (port-commit-peeked n evt target-evt p)))
(lambda () (port-next-location p))
(lambda () (port-count-lines! p))
(let-values ([(line col pos) (port-next-location p)])
(or pos (file-position p))))))
(add1 (file-position p)))))
;; Not kill-safe.
(define make-pipe-with-specials
@ -891,9 +890,14 @@
n)))))
(lambda ()
(when close-orig?
(close-input-port port)))))))
(close-input-port port)))
(and (port-provides-progress-evts? port)
(lambda () (port-progress-evt port)))
(and (port-provides-progress-evts? port)
(lambda (n evt target-evt) (port-commit-peeked n evt target-evt port)))
(lambda () (port-next-location port))
(lambda () (port-count-lines! port))
(add1 (file-position port))))))
(define special-filter-input-port
(lambda (p filter [close? #t])
@ -927,8 +931,7 @@
(lambda (n evt target-evt) (port-commit-peeked n evt target-evt p)))
(lambda () (port-next-location p))
(lambda () (port-count-lines! p))
(let-values ([(l c p) (port-next-location p)])
p))))
(add1 (file-position p)))))
;; ----------------------------------------
@ -1758,8 +1761,7 @@
(let ([new (transplant-output-port
p
(lambda () (port-next-location p))
(let-values ([(line col pos) (port-next-location p)])
(or pos (file-position p)))
(add1 (file-position p))
close?
(lambda () (port-count-lines! p)))])
(port-display-handler new (port-display-handler p))
@ -1771,8 +1773,7 @@
(let ([new (transplant-input-port
p
(lambda () (port-next-location p))
(let-values ([(line col pos) (port-next-location p)])
(or pos (file-position p)))
(add1 (file-position p))
close?
(lambda () (port-count-lines! p)))])
(port-read-handler new (port-read-handler p))