diff options
Diffstat (limited to 'mew.scm')
| -rw-r--r-- | mew.scm | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/mew.scm b/mew.scm index 17be96d..7707851 100644 --- a/mew.scm +++ b/mew.scm @@ -5,7 +5,7 @@ comp cross-product dec def del-at div dup empty? eof esc - fail fin final for fun* + fail fin final for for/into fun* gconcatenate gen generator-xfold generic-for-each genumerate get gfix giterate gmatch gpick group-by-accumulator gslice-when gsplit gsplit-on gwindow @@ -435,6 +435,18 @@ (let ((o obj)) ((generic-for-each o) (match-lambda (i body ...)) o))))) + (define-syntax for-into-regroup + (syntax-rules () + ((_ acc () ((i obj) ...) body ...) + (into acc (gmap (match-lambda* ((i ...) body ...)) (gen obj) ...))) + ((_ acc (i obj rest ...) (j ...) body ...) + (for-into-regroup acc (rest ...) (j ... (i obj)) body ...)))) + + (define-syntax for/into + (syntax-rules () + ((_ acc (rest ...) body ...) + (for-into-regroup acc (rest ...) () body ...)))) + (define (eof) #!eof) (define (void? x) |