diff options
Diffstat (limited to 'guix/utils.scm')
| -rw-r--r-- | guix/utils.scm | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/guix/utils.scm b/guix/utils.scm index 06f49daca8..ee06e47fe9 100644 --- a/guix/utils.scm +++ b/guix/utils.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2012, 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2013, 2014, 2015 Mark H Weaver <mhw@netris.org> ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org> ;;; Copyright © 2014 Ian Denhardt <ian@zenhack.net> @@ -500,11 +500,13 @@ returned by `config.guess'." ;; cross-building to. (make-parameter #f)) -(define (package-name->name+version spec) +(define* (package-name->name+version spec + #:optional (delimiter #\@)) "Given SPEC, a package name like \"foo@0.9.1b\", return two values: \"foo\" and \"0.9.1b\". When the version part is unavailable, SPEC and #f are -returned. Both parts must not contain any '@'." - (match (string-rindex spec #\@) +returned. Both parts must not contain any '@'. Optionally, DELIMITER can be +a character other than '@'." + (match (string-rindex spec delimiter) (#f (values spec #f)) (idx (values (substring spec 0 idx) (substring spec (1+ idx)))))) |