1 ;;;; document-translation.scm -- Functions for engraver documentation
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 2000--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
6 ;;;; Jan Nieuwenhuizen <janneke@gnu.org>
8 (define (engraver-makes-grob? name-symbol grav)
9 (memq name-symbol (assoc 'grobs-created (ly:translator-description grav))))
11 (define (engraver-accepts-music-type? name-symbol grav)
12 (memq name-symbol (assoc 'events-accepted (ly:translator-description grav))))
14 (define (engraver-accepts-music-types? types grav)
18 (engraver-accepts-music-type? (car types) grav)
19 (engraver-accepts-music-types? (cdr types) grav))))
21 (define (engraver-doc-string engraver in-which-contexts)
22 (let* ((propsr (cdr (assoc 'properties-read (ly:translator-description engraver))))
23 (propsw (cdr (assoc 'properties-written (ly:translator-description engraver))))
24 (accepted (cdr (assoc 'events-accepted (ly:translator-description engraver))))
25 (name-sym (ly:translator-name engraver))
26 (name-str (symbol->string name-sym))
27 (desc (cdr (assoc 'description (ly:translator-description engraver))))
28 (grobs (engraver-grobs engraver)))
35 "Music types accepted:\n\n"
47 (description-list->texi
48 (map (lambda (x) (property->texi 'translation x '())) propsr)))
55 (description-list->texi
56 (map (lambda (x) (property->texi 'translation x '())) propsw))))
60 "This engraver creates the following layout objects: \n "
61 (human-listify (map ref-ify (uniq-list (sort grobs string<? ))))
67 (let* ((layout-alist (ly:output-description $defaultlayout))
68 (context-description-alist (map cdr layout-alist))
73 (let* ((context (cdr (assoc 'context-name x)))
74 (group (assq-ref x 'group-type))
79 (cdr (assoc 'consists x)))))
80 (if (member name-sym consists)
83 context-description-alist))))
85 "@code{" name-str "} is part of contexts: "
86 (human-listify (map ref-ify
88 (map symbol->string contexts) string<?)))))
91 ;; First level Engraver description
92 (define (engraver-doc grav)
94 #:name (symbol->string (ly:translator-name grav))
95 #:text (engraver-doc-string grav #t)))
97 ;; Second level, part of Context description
98 (define name->engraver-table (make-vector 61 '()))
101 (hash-set! name->engraver-table (ly:translator-name x) x))
102 (ly:get-all-translators))
104 (define (find-engraver-by-name name)
106 (hash-ref name->engraver-table name #f))
108 (define (document-engraver-by-name name)
111 (let* ((eg (find-engraver-by-name name)))
113 (cons (string-append "@code{" (ref-ify (symbol->string name)) "}")
114 (engraver-doc-string eg #f))))
116 (define (document-property-operation op)
125 (if (null? (cddr body))
128 "grob-property @code{"
129 (symbol->string (cadr body))
130 "} in @ref{" (symbol->string sym)
132 (if (not (null? (cddr body)))
133 (string-append " to @code{" (scm->texi (cadr (cdr body))) "}" ))
135 ((equal? (object-property sym 'is-grob?) #t) "")
136 ((equal? (car op) 'assign)
138 "@item Set translator property @code{"
139 (symbol->string (car body))
141 (scm->texi (cadr body))
144 (define (context-doc context-desc)
145 (let* ((name-sym (cdr (assoc 'context-name context-desc)))
146 (name (symbol->string name-sym))
147 (aliases (map symbol->string (cdr (assoc 'aliases context-desc))))
148 (desc-handle (assoc 'description context-desc))
149 (desc (if (and (pair? desc-handle) (string? (cdr desc-handle)))
150 (cdr desc-handle) "(not documented)"))
152 (accepts (cdr (assoc 'accepts context-desc)))
153 (consists (cdr (assoc 'consists context-desc)))
154 (props (cdr (assoc 'property-ops context-desc)))
155 (grobs (context-grobs context-desc))
156 (grob-refs (map (lambda (x) (ref-ify x)) grobs)))
164 (string-append "\n\n This context is also known as: \n\n"
165 (human-listify aliases))
167 "\n\nThis context creates the following layout objects: \n\n"
168 (human-listify (uniq-list (sort grob-refs string<? )))
172 "\n\nThis context sets the following properties:\n"
174 (apply string-append (map document-property-operation props))
179 "\n\nThis context is a `bottom' context; it can not contain other contexts."
182 name " can contain \n"
183 (human-listify (map ref-ify (map symbol->string accepts)))))
185 "\n\nThis context is built from the following engravers: "
186 (description-list->texi
187 (map document-engraver-by-name consists))))))
189 (define (engraver-grobs grav)
190 (let* ((eg (if (symbol? grav)
191 (find-engraver-by-name grav)
195 (map symbol->string (cdr (assoc 'grobs-created (ly:translator-description eg)))))))
197 (define (context-grobs context-desc)
198 (let* ((group (assq-ref context-desc 'group-type))
203 (cdr (assoc 'consists context-desc))))
205 (map engraver-grobs consists))))
208 (define (all-contexts-doc)
210 (sort (ly:output-description $defaultlayout)
211 (lambda (x y) (symbol<? (car x) (car y)))))
212 (names (sort (map symbol->string (map car layout-alist)) string<?))
213 (contexts (map cdr layout-alist)))
217 #:desc "Complete descriptions of all contexts"
219 (map context-doc contexts))))
221 (define all-engravers-list (ly:get-all-translators))
222 (set! all-engravers-list
223 (sort all-engravers-list
224 (lambda (a b) (string<? (symbol->string (ly:translator-name a))
225 (symbol->string (ly:translator-name b))))))
227 (define (all-engravers-doc)
230 #:desc "All separate engravers"
231 #:text "See @usermanref{Modifying context plug-ins}."
233 (map engraver-doc all-engravers-list)))
235 (define (translation-properties-doc-string lst)
236 (let* ((ps (sort (map symbol->string lst) string<?))
237 (sortedsyms (map string->symbol ps))
240 (lambda (x) (property->texi 'translation x '()))
242 (texi (description-list->texi propdescs)))
245 (define (translation-doc-node)
248 #:desc "From music to layout"
254 #:name "Tunable context properties"
255 #:desc "All tunable context properties"
256 #:text (translation-properties-doc-string
257 all-user-translation-properties))
260 #:name "Internal context properties"
261 #:desc "All internal context properties"
262 #:text (translation-properties-doc-string
263 all-internal-translation-properties)))))