1 ;;;; This file is part of LilyPond, the GNU music typesetter.
3 ;;;; Copyright (C) 2003--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
4 ;;;; Jan Nieuwenhuizen <janneke@gnu.org>
6 ;;;; LilyPond is free software: you can redistribute it and/or modify
7 ;;;; it under the terms of the GNU General Public License as published by
8 ;;;; the Free Software Foundation, either version 3 of the License, or
9 ;;;; (at your option) any later version.
11 ;;;; LilyPond is distributed in the hope that it will be useful,
12 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ;;;; GNU General Public License for more details.
16 ;;;; You should have received a copy of the GNU General Public License
17 ;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
19 (define-module (scm to-xml))
21 (use-modules (ice-9 regex)
27 Todo: this is a quick hack; it makes more sense to define a GOOPS
28 class of a documentnode (similar to how
29 the documentation is generated.)
31 That is much cleaner: building the document, and dumping it to output
46 (define-class <xml-node> ()
47 (name #:init-value "" #:accessor node-name #:init-keyword #:name)
48 (value #:init-value "" #:accessor node-value #:init-keyword #:value)
49 (attributes #:init-value '()
50 #:accessor node-attributes
51 #:init-keyword #:attributes)
52 (children #:init-value '()
53 #:accessor node-children
54 #:init-keyword #:children))
58 (SequentialMusic . measure)
66 (define (musicxml-node->string node)
67 (let ((xml-name (assoc-get (node-name node) node-names #f)))
69 (if xml-name (open-tag xml-name '() '()) "")
70 (if (equal? (node-value node) "")
73 (string-concatenate (map musicxml-node->string (node-children node))))
75 (if xml-name (close-tag xml-name) "")
76 (if xml-name "\n" ""))))
78 (define (xml-node->string node)
81 (open-tag (node-name node) (node-attributes node) '())
82 (if (equal? (node-value node) "")
83 (string-concatenate (map xml-node->string (node-children node)))
86 (close-tag (node-name node))))
88 (define (musicxml-duration->xml-node d)
91 #:value (number->string (ash 1 (ly:duration-log d)))))
93 (define (duration->xml-node d)
96 ;; #:value (number->string (ash 1 (ly:duration-log d)))))
97 #:attributes `((log . ,(ly:duration-log d))
98 (dots . ,(ly:duration-dot-count d))
99 (numer . ,(car (ly:duration-factor d)))
100 (denom . ,(cdr (ly:duration-factor d))))))
102 (define (pitch->xml-node p)
105 #:attributes `((octave . ,(ly:pitch-octave p))
106 (notename . ,(ly:pitch-notename p))
107 (alteration . ,(ly:pitch-alteration p)))))
109 (define (music->xml-node music)
110 (let* ((name (ly:music-property music 'name))
111 (e (ly:music-property music 'element))
112 (es (ly:music-property music 'elements))
113 (mprops (ly:music-mutable-properties music))
114 (d (ly:music-property music 'duration))
115 (p (ly:music-property music 'pitch))
116 (ignore-props '(origin elements duration pitch element)))
123 (if (ly:pitch? p) (list (pitch->xml-node p)) '())
124 (if (ly:duration? d) (list (duration->xml-node d)) '())
125 (if (pair? es) (map music->xml-node es) '())
126 (if (ly:music? e) (list (music->xml-node e)) '())
131 "<?xml version=\"1.0\"?>
140 ;; as computed from input/trip.ly, by
141 ;; http://www.pault.com/pault/dtdgenerator/
143 ;; must recompute with larger, more serious piece, and probably
144 ;; manually add stuff
145 (define preliminary-dtd
147 <!ELEMENT duration EMPTY >
148 <!ATTLIST duration denom ( 1 | 3 | 5 ) #REQUIRED >
149 <!ATTLIST duration dots ( 0 | 1 ) #REQUIRED >
150 <!ATTLIST duration log ( 0 | 1 | 2 | 3 | 4 ) #REQUIRED >
151 <!ATTLIST duration numer ( 1 | 4 ) #REQUIRED >
153 <!ELEMENT music ( duration | music | pitch )* >
154 <!ATTLIST music articulation-type ( lheel | ltoe | marcato | rheel | rtoe | staccato | tenuto ) #IMPLIED >
155 <!ATTLIST music change-to-id NMTOKEN #IMPLIED >
156 <!ATTLIST music change-to-type NMTOKEN #IMPLIED >
157 <!ATTLIST music context-id CDATA #IMPLIED >
158 <!ATTLIST music context-type ( PianoStaff | Score | Staff | Timing | Voice ) #IMPLIED >
159 <!ATTLIST music denominator NMTOKEN #IMPLIED >
160 <!ATTLIST music direction ( 0 | 1 ) #IMPLIED >
161 <!ATTLIST music force-accidental CDATA #IMPLIED >
162 <!ATTLIST music grob-property NMTOKEN #IMPLIED >
163 <!ATTLIST music grob-value CDATA #IMPLIED >
164 <!ATTLIST music iterator-ctor CDATA #IMPLIED >
165 <!ATTLIST music label NMTOKEN #IMPLIED >
166 <!ATTLIST music last-pitch CDATA #IMPLIED >
167 <!ATTLIST music numerator NMTOKEN #IMPLIED >
168 <!ATTLIST music penalty NMTOKEN #IMPLIED >
169 <!ATTLIST music pitch-alist CDATA #IMPLIED >
170 <!ATTLIST music pop-first CDATA #IMPLIED >
171 <!ATTLIST music repeat-count NMTOKEN #IMPLIED >
172 <!ATTLIST music span-direction ( -1 | 1 ) #IMPLIED >
173 <!ATTLIST music span-type NMTOKEN #IMPLIED >
174 <!ATTLIST music symbol NMTOKEN #IMPLIED >
175 <!ATTLIST music text NMTOKEN #IMPLIED >
176 <!ATTLIST music text-type NMTOKEN #IMPLIED >
177 <!ATTLIST music type NMTOKEN #REQUIRED >
178 <!ATTLIST music value CDATA #IMPLIED >
180 <!ELEMENT pitch EMPTY >
181 <!ATTLIST pitch alteration ( 0 | 1 ) #REQUIRED >
182 <!ATTLIST pitch notename ( 0 | 1 | 2 | 3 | 4 | 5 | 6 ) #REQUIRED >
183 <!ATTLIST pitch octave ( -1 | -2 | 0 | 1 ) #REQUIRED >")
190 (ly:error (_ "assertion failed: ~S") x)))
192 (define (re-sub re to string)
193 (regexp-substitute/global #f re string 'pre to 'post))
195 (define (re-sub-alist string alist)
198 (re-sub (caar alist) (cdar alist)
199 (re-sub-alist string (cdr alist)))))
201 (define xml-entities-alist
208 (define (open-tag tag attrs exceptions)
209 (define (candidate? x)
210 (not (memq (car x) exceptions)))
212 (define (dump-attr sym-val)
213 (let* ((sym (car sym-val))
220 (let ((s (call-with-output-string (lambda (port) (display val port)))))
221 (re-sub-alist s xml-entities-alist))
225 "<" (symbol->string tag)
226 (string-concatenate (map dump-attr (filter candidate? attrs)))
229 (define (close-tag name)
230 (string-append "</" (symbol->string name) ">"))
232 (define-public (music-to-xml music port)
233 "Dump XML-ish stuff to @var{port}."
235 ;; dtd contains # -- This confuses tex during make doc.
237 ;; (display (dtd-header) port)
239 (display (open-tag 'music '((type . score)) '()) port)
240 (display (xml-node->string (music->xml-node music)) port)
241 (display (close-tag 'music) port))
243 (define-public (music-to-musicxml music port)
244 "Dump MusicXML-ish stuff to @var{port}."
246 ;; dtd contains # -- This confuses tex during make doc.
248 ;; (display (dtd-header) port)
250 (define duration->xml-node musicxml-duration->xml-node)
252 (display (open-tag 'music '((type . score)) '()) port)
253 (display (musicxml-node->string (music->xml-node music)) port)
254 (display (close-tag 'music) port))