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authorHugo Hörnquist <hugo@lysator.liu.se>2022-02-01 21:32:15 +0100
committerHugo Hörnquist <hugo@lysator.liu.se>2022-02-01 22:10:14 +0100
commit55477368f84f76b831d3b714c52784e7bb952021 (patch)
treedd8afcc594e1b8ec6f4c59777c343488ab049820 /module/hnh/util
parentDocument module-dependants. (diff)
downloadcalp-55477368f84f76b831d3b714c52784e7bb952021.tar.gz
calp-55477368f84f76b831d3b714c52784e7bb952021.tar.xz
Move path-append to own module.
Diffstat (limited to 'module/hnh/util')
-rw-r--r--module/hnh/util/io.scm1
-rw-r--r--module/hnh/util/path.scm20
2 files changed, 20 insertions, 1 deletions
diff --git a/module/hnh/util/io.scm b/module/hnh/util/io.scm
index 04e54a9e..161e09a0 100644
--- a/module/hnh/util/io.scm
+++ b/module/hnh/util/io.scm
@@ -12,7 +12,6 @@
(open-output-file str)))
-
(define-public (read-lines port)
(with-input-from-port port
(lambda ()
diff --git a/module/hnh/util/path.scm b/module/hnh/util/path.scm
new file mode 100644
index 00000000..b08932f9
--- /dev/null
+++ b/module/hnh/util/path.scm
@@ -0,0 +1,20 @@
+(define-module (hnh util path)
+ :use-module (srfi srfi-1)
+ :use-module (hnh util))
+
+;; TODO shouldn't this use `file-name-separator-string'?
+(define-public (path-append . strings)
+ (fold (lambda (s done)
+ (string-append
+ done
+ (if (string-null? s)
+ (string-append s "/")
+ (if (char=? #\/ (string-last done))
+ (if (char=? #\/ (string-first s))
+ (string-drop s 1) s)
+ (if (char=? #\/ (string-first s))
+ s (string-append "/" s))))))
+ (let ((s (car strings)))
+ (if (string-null? s)
+ "/" s))
+ (cdr strings)))