diff options
Diffstat (limited to 'module/hnh/util.scm')
| -rw-r--r-- | module/hnh/util.scm | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/module/hnh/util.scm b/module/hnh/util.scm index e766cd0a..3019b35b 100644 --- a/module/hnh/util.scm +++ b/module/hnh/util.scm @@ -13,6 +13,7 @@ and=>> label print-and-return begin1 + catch* ) #:replace (let* set! define-syntax when unless)) @@ -577,3 +578,11 @@ (lambda () (for-each (lambda (pair) (setenv (car pair) (caddr pair))) env-pairs))))])) + +(define-syntax catch* + (syntax-rules () + ((_ thunk (key handler)) + (catch (quote key) thunk handler)) + ((_ thunk (key handler) rest ...) + (catch* (lambda () (catch (quote key) thunk handler)) + rest ...)))) |