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fix extract-used-classes to skip #redaer header

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svn: r6045
This commit is contained in:
Matthew Flatt 2007-04-25 21:56:36 +00:00
parent 9cf65661ad
commit 29da86d9be
1 changed files with 7 additions and 2 deletions
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9
collects/wxme/wxme.ss
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@ -634,9 +634,12 @@
;; ----------------------------------------
(define (skip-reader port)
(regexp-match/fail-without-reading #rx#"^#reader[(]lib\"read.ss\"\"wxme\"[)]" port))
(define (wxme-convert-port port close? snip-filter)
;; read optional #reader header:
(regexp-match/fail-without-reading #rx#"^#reader[(]lib\"read.ss\"\"wxme\"[)]" port)
(skip-reader port)
;; decode:
(decode 'read-bytes port snip-filter close? #f))
@ -696,7 +699,9 @@
(define (extract-used-classes port)
(if (is-wxme-stream? port)
(decode 'extract-used-classes port (lambda (x) x) #f #t)
(begin
(skip-reader port)
(decode 'extract-used-classes port (lambda (x) x) #f #t))
(values null null)))
(provide/contract [is-wxme-stream? (input-port? . -> . any)]