+;;;;
;;;; lily-library.scm -- utilities
;;;;
;;;; source file of the GNU LilyPond music typesetter
;;;;
-;;;; (c) 1998--2005 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; (c) 1998--2006 Jan Nieuwenhuizen <janneke@gnu.org>
;;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
;; parser stuff.
(define-public (print-music-as-book parser music)
- (let* ((head (ly:parser-lookup parser '$globalheader))
- (book (ly:make-book (ly:parser-lookup parser $defaultpaper)
- head score)))
- (ly:parser-print-book parser book)))
+ (let* ((head (ly:parser-lookup parser '$defaultheader))
+ (book (ly:make-book (ly:parser-lookup parser '$defaultpaper)
+ head (scorify-music music parser))))
+ (print-book-with-defaults parser book)))
(define-public (print-score-as-book parser score)
- (let* ((head (ly:parser-lookup parser '$globalheader))
- (book (ly:make-book (ly:parser-lookup parser $defaultpaper)
+ (let* ((head (ly:parser-lookup parser '$defaultheader))
+ (book (ly:make-book (ly:parser-lookup parser '$defaultpaper)
head score)))
- (ly:parser-print-book parser book)))
+ (print-book-with-defaults parser book)))
(define-public (print-score parser score)
- (let* ((head (ly:parser-lookup parser '$globalheader))
- (book (ly:make-book (ly:parser-lookup parser $defaultpaper)
+ (let* ((head (ly:parser-lookup parser '$defaultheader))
+ (book (ly:make-book (ly:parser-lookup parser '$defaultpaper)
head score)))
(ly:parser-print-score parser book)))
-(define-public (collect-scores-for-book parser score)
- (let* ((oldval (ly:parser-lookup parser 'toplevel-scores)))
- (ly:parser-define parser 'toplevel-scores (cons score oldval))))
+(define-public (collect-scores-for-book parser score)
+ (ly:parser-define!
+ parser 'toplevel-scores
+ (cons score (ly:parser-lookup parser 'toplevel-scores))))
+
+
+(define-public (scorify-music music parser)
+
+ (for-each (lambda (func)
+ (set! music (func music parser)))
+ toplevel-music-functions)
+
+ (ly:make-score music))
(define-public (collect-music-for-book parser music)
- (collect-scores-for-book parser (ly:music-scorify music parser)))
+ ;; discard music if its 'void property is true.
+ (let ((void-music (ly:music-property music 'void)))
+ (if (or (null? void-music) (not void-music))
+ (collect-scores-for-book parser (scorify-music music parser)))))
+
+
+(define-public (print-book-with-defaults parser book)
+ (let*
+ ((paper (ly:parser-lookup parser '$defaultpaper))
+ (layout (ly:parser-lookup parser '$defaultlayout))
+ (count (ly:parser-lookup parser 'output-count))
+ (base (ly:parser-output-name parser)))
+
+ (if (not (integer? count))
+ (set! count 0))
+
+ (if (> count 0)
+ (set! base (format #f "~a-~a" base count)))
+
+ (ly:parser-define! parser 'output-count (1+ count))
+ (ly:book-process book paper layout base)
+ ))
+
+(define-public (print-score-with-defaults parser score)
+ (let*
+ ((paper (ly:parser-lookup parser '$defaultpaper))
+ (layout (ly:parser-lookup parser '$defaultlayout))
+ (header (ly:parser-lookup parser '$defaultheader))
+ (count (ly:parser-lookup parser 'output-count))
+ (base (ly:parser-output-name parser)))
+
+ (if (not (integer? count))
+ (set! count 0))
+
+ (if (> count 0)
+ (set! base (format #f "~a-~a" base count)))
+
+ (ly:parser-define! parser 'output-count (1+ count))
+ (ly:score-process score header paper layout base)
+ ))
-
;;;;;;;;;;;;;;;;
-; alist
+;; alist
(define-public assoc-get ly:assoc-get)
(define-public (uniqued-alist alist acc)
'()
(cons (cons (func (caar list)) (cdar list))
(map-alist-keys func (cdr list)))))
-
+
+(define-public (first-member members lst)
+ "Return first successful MEMBER of member from MEMBERS in LST."
+ (if (null? members)
+ #f
+ (let ((m (member (car members) lst)))
+ (if m m (first-member (cdr members) lst)))))
+
+(define-public (first-assoc keys lst)
+ "Return first successful ASSOC of key from KEYS in LST."
+ (if (null? keys)
+ #f
+ (let ((k (assoc (car keys) lst)))
+ (if k k (first-assoc (cdr keys) lst)))))
+
+(define-public (flatten-alist alist)
+ (if (null? alist)
+ '()
+ (cons (caar alist)
+ (cons (cdar alist)
+ (flatten-alist (cdr alist))))))
+
;;;;;;;;;;;;;;;;
;; vector
(define-public (vector-for-each proc vec)
(if (not (defined? 'hash-table?)) ;; guile 1.6 compat
(begin
(define hash-table? vector?)
-
+ (define-public (hash-for-each proc tab)
+ (hash-fold (lambda (k v prior)
+ (proc k v)
+ #f)
+ #f
+ tab))
(define-public (hash-table->alist t)
"Convert table t to list"
(apply append (vector->list t))))
(cons (+ (car a) (car b))
(+ (cdr a) (cdr b))))
+(define-public (offset-flip-y o)
+ (cons (car o) (- (cdr o))))
+
+(define-public (offset-scale o scale)
+ (cons (* (car o) scale)
+ (* (cdr o) scale)))
+
(define-public (ly:list->offsets accum coords)
(if (null? coords)
accum
(cons (cons (car coords) (cadr coords))
(ly:list->offsets accum (cddr coords)))))
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; numbers
+
+(if (not (defined? 'nan?)) ;; guile 1.6 compat
+ (define-public (nan? x) (not (or (< 0.0 x)
+ (> 0.0 x)
+ (= 0.0 x)))))
+
+(if (not (defined? 'inf?))
+ (define-public (inf? x) (= (/ 1.0 x) 0.0)))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; intervals
+
(define-public (interval-length x)
"Length of the number-pair X, when an interval"
(max 0 (- (cdr x) (car x))))
+(define-public interval-start car)
+(define-public (ordered-cons a b)
+ (cons (min a b)
+ (max a b)))
+
+(define-public interval-end cdr)
+
+(define-public (interval-index interval dir)
+ "Interpolate INTERVAL between between left (DIR=-1) and right (DIR=+1)"
+
+ (* (+ (interval-start interval) (interval-end interval)
+ (* dir (- (interval-end interval) (interval-start interval))))
+ 0.5))
+
+(define-public (interval-center x)
+ "Center the number-pair X, when an interval"
+ (if (interval-empty? x)
+ 0.0
+ (/ (+ (car x) (cdr x)) 2)))
+
(define-public interval-start car)
(define-public interval-end cdr)
+(define-public (interval-translate iv amount)
+ (cons (+ amount (car iv))
+ (+ amount (cdr iv))))
(define (other-axis a)
(remainder (+ a 1) 2))
(cons (- (car iv) amount)
(+ (cdr iv) amount)))
+
+(define-public (interval-empty? iv)
+ (> (car iv) (cdr iv)))
+
(define-public (interval-union i1 i2)
(cons (min (car i1) (car i2))
(max (cdr i1) (cdr i2))))
+(define-public (interval-sane? i)
+ (not (or (nan? (car i))
+ (inf? (car i))
+ (nan? (cdr i))
+ (inf? (cdr i)))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+
+
(define-public (write-me message x)
"Return X. Display MESSAGE and write X. Handy for debugging,
possibly turned off."
(apply format (cons (current-error-port) (cons string rest)))
(force-output (current-error-port)))
+(define-public (debugf string . rest)
+ (if #f
+ (apply stderr (cons string rest))))
+
(define (index-cell cell dir)
(if (equal? dir 1)
(cdr cell)
(cons x (cons between y))))
(fold-right conc #f lst))
+(define-public (string-regexp-substitute a b str)
+ (regexp-substitute/global #f a str 'pre b 'post))
+
+(define (regexp-split str regex)
+ (define matches '())
+ (define end-of-prev-match 0)
+ (define (notice match)
+
+ (set! matches (cons (substring (match:string match)
+ end-of-prev-match
+ (match:start match))
+ matches))
+ (set! end-of-prev-match (match:end match)))
+
+ (regexp-substitute/global #f regex str notice 'post)
+
+ (if (< end-of-prev-match (string-length str))
+ (set!
+ matches
+ (cons (substring str end-of-prev-match (string-length str)) matches)))
+
+ (reverse matches))
+
;;;;;;;;;;;;;;;;
; other
(define (sign x)
(define-public (symbol<? lst r)
(string<? (symbol->string lst) (symbol->string r)))
+(define-public (symbol-key<? lst r)
+ (string<? (symbol->string (car lst)) (symbol->string (car r))))
+
+;;
+;; don't confuse users with #<procedure .. > syntax.
+;;
+(define-public (scm->string val)
+ (if (and (procedure? val) (symbol? (procedure-name val)))
+ (symbol->string (procedure-name val))
+ (string-append
+ (if (self-evaluating? val) "" "'")
+ (call-with-output-string (lambda (port) (display val port))))))
+
(define-public (!= lst r)
(not (= lst r)))
-(define-public scale-to-unit
+(define-public lily-unit->bigpoint-factor
(cond
((equal? (ly:unit) "mm") (/ 72.0 25.4))
((equal? (ly:unit) "pt") (/ 72.0 72.27))
- (else (error "unknown unit" (ly:unit)))))
+ (else (ly:error (_ "unknown unit: ~S") (ly:unit)))))
+
+(define-public lily-unit->mm-factor
+ (* 25.4 (/ lily-unit->bigpoint-factor 72)))
-;;; font
+;;; FONT may be font smob, or pango font string...
(define-public (font-name-style font)
- ;; FIXME: ughr, (ly:font-name) sometimes also has Style appended.
- (let* ((font-name (ly:font-name font))
- (full-name (if font-name font-name (ly:font-file-name font)))
- (name-style (string-split full-name #\-)))
- ;; FIXME: ughr, barf: feta-alphabet is actually emmentaler
- (if (string-prefix? "feta-alphabet" full-name)
- (list "emmentaler"
- (substring full-name (string-length "feta-alphabet")))
- (if (not (null? (cdr name-style)))
+ ;; FIXME: ughr, (ly:font-name) sometimes also has Style appended.
+ (let* ((font-name (ly:font-name font))
+ (full-name (if font-name font-name (ly:font-file-name font)))
+ (name-style (string-split full-name #\-)))
+ ;; FIXME: ughr, barf: feta-alphabet is actually emmentaler
+ (if (string-prefix? "feta-alphabet" full-name)
+ (list "emmentaler"
+ (substring full-name (string-length "feta-alphabet")))
+ (if (not (null? (cdr name-style)))
name-style
(append name-style '("Regular"))))))
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(define-public (ps-embed-cff body font-set-name version)
- (let* ((binary-data
- (string-append
- (format "/~a ~s StartData " font-set-name (string-length body))
- body))
-
- (header
- (format
- "%%BeginResource: font ~a
-%!PS-Adobe-3.0 Resource-FontSet
-%%DocumentNeededResources: ProcSet (FontSetInit)
-%%Title: (FontSet/~a)
-%%Version: ~s
-%%EndComments
-%%IncludeResource: ProcSet (FontSetInit)
-%%BeginResource: FontSet (~a)
-/FontSetInit /ProcSet findresource begin
-%%BeginData: ~s Binary Bytes
-"
- font-set-name font-set-name version font-set-name
- (string-length binary-data)))
- (footer "\n%%EndData
-%%EndResource
-%%EOF
-%%EndResource\n"))
-
- (string-append
- header
- binary-data
- footer)))
-
-(define-public (version-not-seen-message)
- (ly:warn
+(define-public (modified-font-metric-font-scaling font)
+ (let* ((designsize (ly:font-design-size font))
+ (magnification (* (ly:font-magnification font)))
+ (scaling (* magnification designsize)))
+ (debugf "scaling:~S\n" scaling)
+ (debugf "magnification:~S\n" magnification)
+ (debugf "design:~S\n" designsize)
+ scaling))
+
+(define-public (version-not-seen-message input-file-name)
+ (ly:message
+ (string-append
+ input-file-name ": 0: " (_ "warning: ")
(format #f
- (_ "No \\version statement found. Please add~afor future compatibility.")
- (format #f "\n\n\\version ~s\n\n" (lilypond-version))))
- (newline (current-error-port)))
-
-
+ (_ "no \\version statement found, please add~afor future compatibility")
+ (format #f "\n\n\\version ~s\n\n" (lilypond-version))))))
+
+(define-public (old-relative-not-used-message input-file-name)
+ (ly:message
+ (string-append
+ input-file-name ": 0: " (_ "warning: ")
+ (_ "old relative compatibility not used"))))
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