1 ;;; backend-documentation-lib.scm -- Functions for backend documentation
3 ;;; source file of the GNU LilyPond music typesetter
5 ;;; (c) 2000--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
6 ;;; Jan Nieuwenhuizen <janneke@gnu.org>
9 ;;; This file generates documentation for the backend of lilypond.
11 ;; alist of property descriptions
22 * preset properties + explanation
26 * properties available.
31 (define (interface-doc-string interface grob-description)
34 (name (car interface))
35 (desc (cadr interface))
36 (props (sort (caddr interface) symbol<?))
39 pr 'backend grob-description )))
40 (propdocs (map docfunc props))
45 (description-list->texi propdocs))
49 ;; First level Interface description
50 (define (interface-doc interface)
51 (let ((name (symbol->string (car interface))))
54 #:text (interface-doc-string (cdr interface) #f))))
56 (define (grob-doc description)
59 (metah (assoc 'meta description))
62 (name (cdr (assoc 'name meta)))
63 (ifaces (map lookup-interface (cdr (assoc 'interfaces meta))))
64 (ifacedoc (map (lambda (iface)
65 (interface-doc-string iface description))
67 (engravers (filter-list
68 (lambda (x) (engraver-makes-grob? name x)) all-engravers-list))
69 (namestr (symbol->string name))
70 (engraver-names (map ly-translator-name engravers))
77 namestr " grobs are created by: "
78 (human-listify (map ref-ify
79 (map engraver-name engraver-names)))
80 (apply string-append ifacedoc)
84 (define (all-grobs-doc)
86 #:name "All Graphical objects"
87 #:desc "Description and defaults for all Grobs"
89 (map (lambda (x) (grob-doc (cdr x))) all-grob-descriptions)))
91 (define interface-description-alist
93 (lambda (key val prior)
94 (cons (cons key val) prior)
96 '() (ly-all-grob-interfaces)))
98 (set! interface-description-alist (sort interface-description-alist alist<?))
101 ;;;;;;;;;; check for dangling backend properties.
102 (define (mark-interface-properties entry)
103 (map (lambda (x) (set-object-property! x 'iface-marked #t)) (caddr (cdr entry)))
106 (map mark-interface-properties interface-description-alist)
108 (define (check-dangling-properties prop)
109 (if (not (object-property prop 'iface-marked))
110 (error "\nDangling property: " prop))
113 (map check-dangling-properties all-backend-properties)
117 (define (lookup-interface name)
119 (entry (hashq-ref (ly-all-grob-interfaces) name #f))
122 (if (equal? entry #f)
123 (error "Unknown interface" name))
128 (define (all-interfaces-doc)
130 #:name "Graphical Object Interfaces"
131 #:desc "Building blocks of graphical objects"
133 (map interface-doc interface-description-alist)
136 (define (all-backend-properties-doc)
139 (ps (sort (map symbol->string all-backend-properties) string<?))
140 (descs (map (lambda (prop)
141 (document-property (string->symbol prop) 'backend #f))
143 (texi (description-list->texi descs))
146 #:name "backend properties"
147 #:desc "all the properties in use as grob properties"
151 ;(dump-node (grob-doc (cdadr all-grob-descriptions)) (current-output-port) 0 )
152 (define (backend-doc-node)
155 #:desc "Reference for the layout engine"
160 (all-backend-properties-doc)