-;;;; c++.scm -- implement Scheme frontends to C++ functions
+;;;; This file is part of LilyPond, the GNU music typesetter.
;;;;
-;;;; source file of the GNU LilyPond music typesetter
-;;;;
-;;;; (c) 1998--2008 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; Copyright (C) 1998--2011 Jan Nieuwenhuizen <janneke@gnu.org>
;;;; Han-Wen Nienhuys <hanwen@xs4all.nl>
+;;;;
+;;;; LilyPond is free software: you can redistribute it and/or modify
+;;;; it under the terms of the GNU General Public License as published by
+;;;; the Free Software Foundation, either version 3 of the License, or
+;;;; (at your option) any later version.
+;;;;
+;;;; LilyPond is distributed in the hope that it will be useful,
+;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;;; GNU General Public License for more details.
+;;;;
+;;;; You should have received a copy of the GNU General Public License
+;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
;;; Note: this file can't be used without LilyPond executable
(define-public (number-or-string? x)
(or (number? x) (string? x)))
+(define-public (string-or-pair? x)
+ (or (string? x) (pair? x)))
+
+(define-public (number-or-pair? x)
+ (or (number? x) (pair? x)))
+
+(define-public (cheap-list? x)
+ (or (pair? x) (null? x)))
+
+(define-public (list-or-symbol? x)
+ (or (cheap-list? x) (symbol? x)))
+
(define-public (scheme? x) #t)
+(define-public (symbol-or-boolean? x)
+ (or (symbol? x) (boolean? x)))
;; moved list to end of lily.scm: then all type-predicates are
;; defined.
-(define type-p-name-alist '())
+(define type-p-name-alist '())
(define (match-predicate obj alist)
(if (null? alist)
(define-public (type-name predicate)
(let ((entry (assoc predicate type-p-name-alist)))
(if (pair? entry) (cdr entry)
- "unknown")))
+ (string-trim-right
+ (symbol->string (procedure-name predicate))
+ #\?))))