diff options
Diffstat (limited to 'sc2.scm')
| -rw-r--r-- | sc2.scm | 15 |
1 files changed, 8 insertions, 7 deletions
@@ -8,7 +8,7 @@ ;1. Any copy made of this software must include this copyright notice ;in full. ; -;2. I have made no warrantee or representation that the operation of +;2. I have made no warranty or representation that the operation of ;this software will be error-free, and I am under no obligation to ;provide any services, by way of maintenance, update, or otherwise. ; @@ -17,29 +17,30 @@ ;promotional, or sales literature without prior written consent in ;each case. +;@ (define (substring-move-left! string1 start1 end1 string2 start2) (do ((i start1 (+ i 1)) (j start2 (+ j 1)) (l (- end1 start1) (- l 1))) ((<= l 0)) (string-set! string2 j (string-ref string1 i)))) - +;@ (define (substring-move-right! string1 start1 end1 string2 start2) (do ((i (+ start1 (- end1 start1) -1) (- i 1)) (j (+ start2 (- end1 start1) -1) (- j 1)) (l (- end1 start1) (- l 1))) ((<= l 0)) (string-set! string2 j (string-ref string1 i)))) - +;@ (define (substring-fill! string start end char) (do ((i start (+ i 1)) (l (- end start) (- l 1))) ((<= l 0)) (string-set! string i char))) - +;@ (define (string-null? str) (= 0 (string-length str))) - +;@ (define append! (lambda args (cond ((null? args) '()) @@ -51,14 +52,14 @@ (car args))))) ;;;; need to add code for OBJECT-HASH and OBJECT-UNHASH - +;@ (define 1+ (let ((+ +)) (lambda (n) (+ n 1)))) (define -1+ (let ((+ +)) (lambda (n) (+ n -1)))) - +;@ (define <? <) (define <=? <=) (define =? =) |