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[report-utilities] commodity-collector: simplify

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This commit is contained in:
Christopher Lam 2018-08-30 17:05:40 +08:00
parent b21874df0b
commit b85f54a287
1 changed files with 12 additions and 27 deletions
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39
gnucash/report/report-system/report-utilities.scm
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@ -20,9 +20,8 @@
(use-modules (srfi srfi-13))
(define (list-ref-safe list elt)
(if (> (length list) elt)
(list-ref list elt)
#f))
(and (> (length list) elt)
(list-ref list elt)))
(define (list-set-safe! l elt val)
(if (and (list? l) (> (length l) elt))
@ -349,31 +348,19 @@
clist))
;; helper function which is given a commodity and returns, if
;; existing, a list (gnc:commodity gnc:numeric). If the second
;; argument was #t, the sign gets reversed.
;; existing, a list (gnc:commodity gnc:numeric).
(define (getpair c sign?)
(let ((pair (assoc c commoditylist)))
(cons c (cons
(if (not pair)
(gnc-numeric-zero)
(if sign?
(gnc-numeric-neg
(gnc:value-collector-total (cadr pair)))
(gnc:value-collector-total (cadr pair))))
'()))))
(let* ((pair (assoc c commoditylist))
(total (and pair (gnc:value-collector-total (cadr pair)))))
(list c (if pair (if sign? (- total) total) 0))))
;; helper function which is given a commodity and returns, if
;; existing, a <gnc:monetary> value. If the second argument was
;; #t, the sign gets reversed.
;; existing, a <gnc:monetary> value.
(define (getmonetary c sign?)
(let ((pair (assoc c commoditylist)))
(let* ((pair (assoc c commoditylist))
(total (and pair (gnc:value-collector-total (cadr pair)))))
(gnc:make-gnc-monetary
c (if (not pair)
(gnc-numeric-zero)
(if sign?
(gnc-numeric-neg
(gnc:value-collector-total (cadr pair)))
(gnc:value-collector-total (cadr pair)))))))
c (if pair (if sign? (- total) total) 0))))
;; Dispatch function
(lambda (action commodity amount)
@ -391,14 +378,12 @@
(else (gnc:warn "bad commodity-collector action: " action))))))
(define (gnc:commodity-collector-get-negated collector)
(let
((negated (gnc:make-commodity-collector)))
(let ((negated (gnc:make-commodity-collector)))
(negated 'minusmerge collector #f)
negated))
(define (gnc:commodity-collectorlist-get-merged collectorlist)
(let
((merged (gnc:make-commodity-collector)))
(let ((merged (gnc:make-commodity-collector)))
(for-each (lambda (collector) (merged 'merge collector #f)) collectorlist)
merged))