diff options
Diffstat (limited to 'module/rnrs')
-rw-r--r-- | module/rnrs/io/ports.scm | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/module/rnrs/io/ports.scm b/module/rnrs/io/ports.scm index 7c17b0ccc..8e04f5dea 100644 --- a/module/rnrs/io/ports.scm +++ b/module/rnrs/io/ports.scm @@ -220,24 +220,22 @@ (define (port-transcoder port) "Return the transcoder object associated with @var{port}, or @code{#f} if the port has no transcoder." - (cond ((port-encoding port) - => (lambda (encoding) - (make-transcoder - encoding - (native-eol-style) - (case (port-conversion-strategy port) - ((error) 'raise) - ((substitute) 'replace) - (else - (assertion-violation 'port-transcoder - "unsupported error handling mode")))))) - (else - #f))) + (and (textual-port? port) + ;; All textual ports have transcoders. + (make-transcoder + (port-encoding port) + (native-eol-style) + (case (port-conversion-strategy port) + ((error) 'raise) + ((substitute) 'replace) + (else + (assertion-violation 'port-transcoder + "unsupported error handling mode")))))) (define (binary-port? port) - "Returns @code{#t} if @var{port} does not have an associated encoding, -@code{#f} otherwise." - (not (port-encoding port))) + "Always returns @code{#t}, as all ports can be used for binary I/O in +Guile." + (equal? (port-encoding port) "ISO-8859-1")) (define (textual-port? port) "Always returns @code{#t}, as all ports can be used for textual I/O in |