diff options
| author | Ludovic Courtès <ludo@gnu.org> | 2023-05-05 18:22:56 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2023-05-05 23:47:48 +0200 |
| commit | 8749f31485888c587c6f88a0a7bdd48cc9e8c9b8 (patch) | |
| tree | b46204127e2c5bc02e94740dd79f842093af7ba1 /guix | |
| parent | 94d0efffb39878440bcac564a0ce18c7af3de64f (diff) | |
read-print: Correctly read "(. x)".
* guix/read-print.scm (read-with-comments): Check whether REST is a pair
before calling 'set-cdr!'.
* tests/read-print.scm ("read-with-comments: half dot notation"): New test.
Diffstat (limited to 'guix')
| -rw-r--r-- | guix/read-print.scm | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/guix/read-print.scm b/guix/read-print.scm index d834105dce..83b9a61b35 100644 --- a/guix/read-print.scm +++ b/guix/read-print.scm @@ -179,9 +179,11 @@ BLANK-LINE? is true, assume PORT is at the beginning of a new line." (match lst (() result) (((? dot?) . rest) - (let ((dotted (reverse rest))) - (set-cdr! (last-pair dotted) (car result)) - dotted)) + (if (pair? rest) + (let ((dotted (reverse rest))) + (set-cdr! (last-pair dotted) (car result)) + dotted) + (car result))) ((x . rest) (loop (cons x result) rest))))) (let loop ((blank-line? blank-line?) |