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| author | Ludovic Courtès <ludo@gnu.org> | 2013-07-10 17:01:47 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2013-07-10 18:01:12 +0200 |
| commit | b7b88288011aa41791b6634ae229f426bacc55ce (patch) | |
| tree | 44e694859112482d9978e588293b741426460e60 | |
| parent | fdc1bf659d9834fce6c78d31680b580eab3f4235 (diff) | |
| download | patches-b7b88288011aa41791b6634ae229f426bacc55ce.tar patches-b7b88288011aa41791b6634ae229f426bacc55ce.tar.gz | |
records: `recutils->alist' recognizes comments.
* guix/records.scm (%recutils-comment-rx): New variable.
(recutils->alist): Match comments.
* tests/records.scm ("recutils->alist"): Add comments.
| -rw-r--r-- | guix/records.scm | 12 | ||||
| -rw-r--r-- | tests/records.scm | 14 |
2 files changed, 23 insertions, 3 deletions
diff --git a/guix/records.scm b/guix/records.scm index 64581f1be2..57664df5a6 100644 --- a/guix/records.scm +++ b/guix/records.scm @@ -217,13 +217,23 @@ PORT, according to FIELDS. FIELDS must be a list of field name/getter pairs." (define %recutils-field-rx (make-regexp "^([[:graph:]]+): (.*)$")) +(define %recutils-comment-rx + ;; info "(recutils) Comments" + (make-regexp "^#")) + (define (recutils->alist port) "Read a recutils-style record from PORT and return it as a list of key/value pairs. Stop upon an empty line (after consuming it) or EOF." (let loop ((line (read-line port)) (result '())) - (cond ((or (eof-object? line) (string-null? line)) + (cond ((eof-object? line) (reverse result)) + ((string-null? line) + (if (null? result) + (loop (read-line port) result) ; leading space: ignore it + (reverse result))) ; end-of-record marker + ((regexp-exec %recutils-comment-rx line) + (loop (read-line port) result)) ((regexp-exec %recutils-field-rx line) => (lambda (match) diff --git a/tests/records.scm b/tests/records.scm index 470644451c..d0635ebb1f 100644 --- a/tests/records.scm +++ b/tests/records.scm @@ -138,13 +138,23 @@ ("Something_else" . "chbouib")) (("Name" . "bar") ("Version" . "1.5"))) - (let ((p (open-input-string "Name: foo + (let ((p (open-input-string " +# Comment following an empty line, and +# preceding a couple of empty lines, all of +# which should be silently consumed. + + +Name: foo Version: 0.1 +# Comment right in the middle, +# spanning two lines. Synopsis: foo bar Something_else: chbouib +# Comment right before. Name: bar -Version: 1.5"))) +Version: 1.5 +# Comment at the end."))) (list (recutils->alist p) (recutils->alist p)))) |