diff options
Diffstat (limited to 'module/hnh/util/io.scm')
| -rw-r--r-- | module/hnh/util/io.scm | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/module/hnh/util/io.scm b/module/hnh/util/io.scm index d638ebb4..09900f8d 100644 --- a/module/hnh/util/io.scm +++ b/module/hnh/util/io.scm @@ -4,7 +4,9 @@ :export (open-input-port open-output-port read-lines - with-atomic-output-to-file)) + with-atomic-output-to-file + call-with-tmpfile + ->port)) (define (open-input-port str) (if (string=? "-" str) @@ -62,3 +64,19 @@ ;; counted on, since anything with an unspecified return ;; value might as well return #f) #f)))) + +(define* (call-with-tmpfile proc key: (tmpl "/tmp/file-XXXXXXX")) + (let* ((filename (string-copy tmpl)) + (port (mkstemp! filename))) + (with-continuation-barrier + (lambda () + (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)))) |