X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Fc%2B%2B.scm;h=17586d1f385a1683935260b045194cf407c47a5c;hb=41d87651a93844bceca9a8ccb6417642aca24457;hp=8847e7e16d9fbd19f087bb0def5134dc5a80d3f6;hpb=e63d8e146a993d7c3de271cf377191f7cf24775a;p=lilypond.git diff --git a/scm/c++.scm b/scm/c++.scm index 8847e7e16d..17586d1f38 100644 --- a/scm/c++.scm +++ b/scm/c++.scm @@ -2,42 +2,40 @@ ;;;; ;;;; source file of the GNU LilyPond music typesetter ;;;; -;;;; (c) 1998--2002 Jan Nieuwenhuizen -;;;; Han-Wen Nienhuys +;;;; (c) 1998--2007 Jan Nieuwenhuizen +;;;; Han-Wen Nienhuys ;;; Note: this file can't be used without LilyPond executable ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; type predicates. -(define-public (number-pair? x) +(define-public (number-pair? x) (and (pair? x) (number? (car x)) (number? (cdr x)))) + (define-public (number-or-grob? x) - (or (ly:grob? x) (number? x)) - ) + (or (ly:grob? x) (number? x))) (define-public (grob-list? x) (list? x)) -(define-public (moment-pair? x) +(define-public (moment-pair? x) (and (pair? x) (ly:moment? (car x)) (ly:moment? (cdr x)))) (define-public (boolean-or-symbol? x) (or (boolean? x) (symbol? x))) +(define-public (string-or-symbol? x) + (or (string? x) (symbol? x))) + (define-public (number-or-string? x) (or (number? x) (string? x))) (define-public (scheme? x) #t) - -;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; -;; - - ;; moved list to end of lily.scm: then all type-predicates are ;; defined. (define type-p-name-alist '()) @@ -47,15 +45,15 @@ "Unknown type" (if (apply (caar alist) obj) (cdar alist) - (match-predicate obj (cdr alist)) - ) - )) + (match-predicate obj (cdr alist))))) (define-public (object-type obj) (match-predicate obj type-p-name-alist)) -(define-public (type-name predicate) +(define-public (object-type-name obj) + (type-name (match-predicate obj type-p-name-alist))) + +(define-public (type-name predicate) (let ((entry (assoc predicate type-p-name-alist))) (if (pair? entry) (cdr entry) - "unknown" - ))) + "unknown")))