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| author | Leah Neukirchen <leah@vuxu.org> | 2022-12-16 00:18:05 +0100 |
|---|---|---|
| committer | Leah Neukirchen <leah@vuxu.org> | 2022-12-16 00:18:05 +0100 |
| commit | 28ad4b62515325463656627fa3d80a984f8c0fdb (patch) | |
| tree | d74de06cc1f46c599387d247744779c4934c72d3 /mew.scm | |
| parent | 234dbc781c328db11c3cc17a74d2c9301e5d82bf (diff) | |
| download | mew-28ad4b62515325463656627fa3d80a984f8c0fdb.tar.gz mew-28ad4b62515325463656627fa3d80a984f8c0fdb.tar.xz mew-28ad4b62515325463656627fa3d80a984f8c0fdb.zip | |
add parallel for
Diffstat (limited to 'mew.scm')
| -rw-r--r-- | mew.scm | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/mew.scm b/mew.scm index be9ae9b..17be96d 100644 --- a/mew.scm +++ b/mew.scm @@ -420,8 +420,17 @@ ((procedure? obj) generator-for-each) (#t (error "no generic-for-each defined")))) + (define-syntax for-regroup + (syntax-rules () + ((_ () ((i obj) ...) body ...) + (void (final (gmap (match-lambda* ((i ...) body ...)) (gen obj) ...)))) + ((_ (i obj rest ...) (j ...) body ...) + (for-regroup (rest ...) (j ... (i obj)) body ...)))) + (define-syntax for (syntax-rules () + ((_ (i obj j obj2 rest ...) body ...) + (for-regroup (i obj j obj2 rest ...) () body ...)) ((_ (i obj) body ...) (let ((o obj)) ((generic-for-each o) (match-lambda (i body ...)) o))))) |