;;;; This file is part of LilyPond, the GNU music typesetter.
;;;;
-;;;; Copyright (C) 2005--2012 Erik Sandberg <mandolaerik@gmail.com>
+;;;; Copyright (C) 2005--2015 Erik Sandberg <mandolaerik@gmail.com>
;;;;
;;;; LilyPond is free software: you can redistribute it and/or modify
;;;; it under the terms of the GNU General Public License as published by
(RemoveContext
ChangeParent Override Revert UnsetProperty SetProperty
music-event OldMusicEvent CreateContext Prepare
- OneTimeStep Finish))
+ OneTimeStep Finish GraceChange))
(music-event . (annotate-output-event
footnote-event arpeggio-event breathing-event
extender-event span-event rhythmic-event dynamic-event
break-event label-event percent-event key-change-event
string-number-event stroke-finger-event tie-event
- part-combine-event part-combine-force-event
+ part-combine-event
beam-forbid-event script-event tempo-change-event
tremolo-event bend-after-event fingering-event
glissando-event harmonic-event hyphen-event
laissez-vibrer-event mark-event multi-measure-text-event
note-grouping-event pes-or-flexa-event repeat-tie-event
spacing-section-event layout-instruction-event
+ time-signature-event
completize-extender-event break-span-event alternative-event))
(layout-instruction-event . (apply-output-event))
(acons elt lineage alist))
classlist class))))
+(define all-event-classes
+ (fold (lambda (elt classlist)
+ (event-class-cons (cdr elt) (car elt) classlist))
+ '() event-classes))
+
+;; Maps event-class to a list of ancestors (inclusive)
+(define ancestor-lookup (make-hash-table (length all-event-classes)))
+
+(define (ancestor-lookup-initialize)
+ (hash-clear! ancestor-lookup)
+ (for-each (lambda (ent) (hashq-set! ancestor-lookup (car ent) ent))
+ all-event-classes))
+
+(ancestor-lookup-initialize)
+(call-after-session ancestor-lookup-initialize)
+
;; Each class will be defined as
;; (class parent grandparent .. )
;; so that (eq? (cdr class) parent) holds.
+(define-public (define-event-class class parent)
+ "Defines a new event @code{class} derived from @code{parent}, a
+previously defined event class."
+ (let ((parentclass (ly:make-event-class parent)))
+ (cond
+ ((ly:make-event-class class)
+ (ly:error (_ "Cannot redefine event class `~S'") class))
+ ((not parentclass)
+ (ly:error (_ "Undefined parent event class `~S'") parentclass))
+ (else
+ (hashq-set! ancestor-lookup
+ class
+ (cons class parentclass))))
+ *unspecified*))
+
+;; TODO: Allow entering more complex classes, by taking unions.
+(define-public (ly:make-event-class leaf)
+ (hashq-ref ancestor-lookup leaf))
+
(define-public (ly:in-event-class? ev cl)
"Does event @var{ev} belong to event class @var{cl}?"
(memq cl (ly:event-property ev 'class)))
-(define-public all-event-classes
- (fold (lambda (elt classlist)
- (event-class-cons (cdr elt) (car elt) classlist))
- '() event-classes))
-
;; does this exist in guile already?
(define (map-tree f t)
(cond
;;(pretty-print (cons (car music-event-tree) (sort-tree (cdr music-event-tree))))
(defmacro-public make-stream-event (expr)
- (Stream_event::undump (primitive-eval (list 'quasiquote expr))))
+ (ly:stream-event::undump (primitive-eval (list 'quasiquote expr))))
(define* (simplify e)
(cond
((pair? e) (cons (simplify (car e))
(simplify (cdr e))))
((ly:stream-event? e)
- (list 'unquote (list 'make-stream-event (simplify (Stream_event::dump e)))))
+ (list 'unquote (list 'make-stream-event (simplify (ly:stream-event::dump e)))))
((ly:music? e)
(list 'unquote (music->make-music e)))
((ly:moment? e)
(list 'unquote `(ly:make-duration
,(ly:duration-log e)
,(ly:duration-dot-count e)
- ,(ly:duration-scale))))
+ ,(ly:duration-scale e))))
((ly:pitch? e)
(list 'unquote `(ly:make-pitch
,(ly:pitch-octave e)