;;;; lily-library.scm -- utilities
;;;;
;;;; source file of the GNU LilyPond music typesetter
-;;;;
+;;;;
;;;; (c) 1998--2009 Jan Nieuwenhuizen <janneke@gnu.org>
;;;; Han-Wen Nienhuys <hanwen@xs4all.nl>
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; moments
-(define-public ZERO-MOMENT (ly:make-moment 0 1))
+(define-public ZERO-MOMENT (ly:make-moment 0 1))
(define-public (moment-min a b)
(if (ly:moment<? a b) a b))
+(define-public (moment<=? a b)
+ (or (equal? a b)
+ (ly:moment<? a b)))
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; arithmetic
(define-public (average x . lst)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; parser <-> output hooks.
-
+
(define-public (collect-bookpart-for-book parser book-part)
"Toplevel book-part handler"
(define (add-bookpart book-part)
(define-public (scorify-music music parser)
"Preprocess MUSIC."
-
+
(for-each (lambda (func)
(set! music (func music parser)))
toplevel-music-functions)
(ly:make-score music))
-(define (print-book-with parser book process-procedure)
- (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))
- (output-suffix (ly:parser-lookup parser 'output-suffix)) )
+(define (get-outfile-name parser base)
+ (let* ((output-suffix (ly:parser-lookup parser 'output-suffix))
+ (counter-alist (ly:parser-lookup parser 'counter-alist))
+ (output-count (assoc-get output-suffix counter-alist 0))
+ (result base))
+ ;; Allow all ASCII alphanumerics, including accents
(if (string? output-suffix)
- (set! base (format "~a-~a" base (string-regexp-substitute
- "[^a-zA-Z0-9-]" "_" output-suffix))))
+ (set! result (format "~a-~a"
+ base (string-regexp-substitute
+ "[^-[:alnum:]]" "_" output-suffix))))
+
+ ;; assoc-get call will always have returned a number
+ (if (> output-count 0)
+ (set! result (format #f "~a-~a" result output-count)))
+
+ (ly:parser-define!
+ parser 'counter-alist
+ (assoc-set! counter-alist output-suffix (1+ output-count)))
+ result))
- ;; must be careful: output-count is under user control.
- (if (not (integer? count))
- (set! count 0))
+(define (print-book-with parser book process-procedure)
+ (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))
+ (outfile-name (get-outfile-name parser base)))
- (if (> count 0)
- (set! base (format #f "~a-~a" base count)))
- (ly:parser-define! parser 'output-count (1+ count))
- (process-procedure book paper layout base)
- ))
+ (process-procedure book paper layout outfile-name)))
(define-public (print-book-with-defaults parser book)
(print-book-with parser book ly:book-process))
(define-public (print-book-with-defaults-as-systems parser book)
(print-book-with parser book ly:book-process-to-systems))
+;; Add a score to the current bookpart, book or toplevel
+(define-public (add-score parser score)
+ (cond
+ ((ly:parser-lookup parser '$current-bookpart)
+ ((ly:parser-lookup parser 'bookpart-score-handler)
+ (ly:parser-lookup parser '$current-bookpart) score))
+ ((ly:parser-lookup parser '$current-book)
+ ((ly:parser-lookup parser 'book-score-handler)
+ (ly:parser-lookup parser '$current-book) score))
+ (else
+ ((ly:parser-lookup parser 'toplevel-score-handler) parser score))))
+
+(define-public (add-text parser text)
+ (add-score parser (list text)))
+
+(define-public (add-music parser music)
+ (collect-music-aux (lambda (score)
+ (add-score parser score))
+ parser
+ music))
+
+
;;;;;;;;;;;;;;;;
;; alist
(hash-fold (lambda (k v acc) (acons k v acc))
'() t))
-;; todo: code dup with C++.
+;; todo: code dup with C++.
(define-safe-public (alist->hash-table lst)
"Convert alist to table"
(let ((m (make-hash-table (length lst))))
(define (split-list lst n)
"Split LST in N equal sized parts"
-
+
(define (helper todo acc-vector k)
(if (null? todo)
acc-vector
(begin
(if (< k 0)
(set! k (+ n k)))
-
+
(vector-set! acc-vector k (cons (car todo) (vector-ref acc-vector k)))
(helper (cdr todo) acc-vector (1- k)))))
(reverse (helper lst '() 1)))
-
+
(define-public (list-join lst intermediate)
"put INTERMEDIATE between all elts of LST."
(define (flatten-list lst)
- "Unnest LST"
+ "Unnest LST"
(if (null? lst)
'()
(if (pair? (car lst))
(define-public (uniq-list lst)
"Uniq LST, assuming that it is sorted. Uses equal? for comparisons."
- (reverse!
+ (reverse!
(fold (lambda (x acc)
(if (null? acc)
(list x)
(define-public (offset-add a b)
(cons (+ (car a) (car b))
- (+ (cdr a) (cdr b))))
+ (+ (cdr a) (cdr b))))
(define-public (offset-flip-y o)
(cons (car o) (- (cdr o))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; intervals
+(define-public empty-interval '(+inf.0 . -inf.0))
+
+(define-public (symmetric-interval expr)
+ (cons (- expr) expr))
+
(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-bound interval dir)
((if (= dir RIGHT) cdr car) interval))
(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))
(/ (+ (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))))
(cons (- (car iv) amount)
(+ (cdr iv) amount)))
-
(define-public (interval-empty? iv)
(> (car iv) (cdr iv)))
(cons (min (car i1) (car i2))
(max (cdr i1) (cdr i2))))
+(define-public (interval-intersection i1 i2)
+ (cons (max (car i1) (car i2))
+ (min (cdr i1) (cdr i2))))
+
(define-public (interval-sane? i)
(not (or (nan? (car i))
(inf? (car i))
(inf? (cdr i))
(> (car i) (cdr i)))))
+(define-public (add-point interval p)
+ (cons (min (interval-start interval) p)
+ (max (interval-end interval) p)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; string
(equal? suffix (substring s
(max 0 (- (string-length s) (string-length suffix)))
(string-length s))))
-
+
(define-public (string-startswith s prefix)
(equal? prefix (substring s 0 (min (string-length s) (string-length prefix)))))
-
+
(define-public (string-encode-integer i)
(cond
((= i 0) "o")
(fold-right conc #f lst))
(define-public (string-regexp-substitute a b str)
- (regexp-substitute/global #f a str 'pre b 'post))
+ (regexp-substitute/global #f a str 'pre b 'post))
(define (regexp-split str regex)
(define matches '())
(string<? (symbol->string (car lst)) (symbol->string (car r))))
;;
-;; don't confuse users with #<procedure .. > syntax.
-;;
+;; don't confuse users with #<procedure .. > syntax.
+;;
(define-public (scm->string val)
(if (and (procedure? val)
(symbol? (procedure-name val)))
(define-public (version-not-seen-message input-file-name)
(ly:message
- "~a:0: ~a ~a"
+ "~a:0: ~a ~a"
input-file-name
(_ "warning:")
(format #f
(define-public (old-relative-not-used-message input-file-name)
(ly:message
- "~a:0: ~a ~a"
+ "~a:0: ~a ~a"
input-file-name
(_ "warning:")
(_ "old relative compatibility not used")))