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authorHugo Hörnquist <hugo@lysator.liu.se>2023-04-10 22:44:16 +0200
committerHugo Hörnquist <hugo@lysator.liu.se>2023-04-10 23:45:29 +0200
commit5e714a3068a3cfe9acdc28aa6bfe0c79589edf4d (patch)
tree9bdebf6f6c9af734e76af07a3c858b87e08603a5 /module/hnh/util/io.scm
parentAdd eval- and exec-state. (diff)
downloadcalp-5e714a3068a3cfe9acdc28aa6bfe0c79589edf4d.tar.gz
calp-5e714a3068a3cfe9acdc28aa6bfe0c79589edf4d.tar.xz
Add ->port.
Diffstat (limited to 'module/hnh/util/io.scm')
-rw-r--r--module/hnh/util/io.scm10
1 files changed, 9 insertions, 1 deletions
diff --git a/module/hnh/util/io.scm b/module/hnh/util/io.scm
index d73a1de8..09900f8d 100644
--- a/module/hnh/util/io.scm
+++ b/module/hnh/util/io.scm
@@ -5,7 +5,8 @@
open-output-port
read-lines
with-atomic-output-to-file
- call-with-tmpfile))
+ call-with-tmpfile
+ ->port))
(define (open-input-port str)
(if (string=? "-" str)
@@ -72,3 +73,10 @@
(begin1
(proc port filename)
(close-port port))))))
+
+(define (->port port-or-string)
+ (cond ((port? port-or-string) port-or-string)
+ ((string? port-or-string) (open-input-string port-or-string))
+ (else (scm-error 'misc-error "->port"
+ "Not a port or string"
+ (list port-or-string) #f))))