+;;;;
;;;; lily-library.scm -- utilities
;;;;
;;;; source file of the GNU LilyPond music typesetter
;;;;
-;;;; (c) 1998--2004 Jan Nieuwenhuizen <janneke@gnu.org>
-;;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
+;;;; (c) 1998--2008 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; Han-Wen Nienhuys <hanwen@xs4all.nl>
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; constants.
(define-public X 0)
(define-public Y 1)
-(define-public START -1)
-(define-public STOP 1)
+(define-safe-public START -1)
+(define-safe-public STOP 1)
(define-public LEFT -1)
(define-public RIGHT 1)
(define-public UP 1)
(define-public DOWN -1)
(define-public CENTER 0)
-(define-public DOUBLE-FLAT -4)
-(define-public THREE-Q-FLAT -3)
-(define-public FLAT -2)
-(define-public SEMI-FLAT -1)
-(define-public NATURAL 0)
-(define-public SEMI-SHARP 1)
-(define-public SHARP 2)
-(define-public THREE-Q-SHARP 3)
-(define-public DOUBLE-SHARP 4)
-(define-public SEMI-TONE 2)
+(define-safe-public DOUBLE-FLAT-QTS -4)
+(define-safe-public THREE-Q-FLAT-QTS -3)
+(define-safe-public FLAT-QTS -2)
+(define-safe-public SEMI-FLAT-QTS -1)
+(define-safe-public NATURAL-QTS 0)
+(define-safe-public SEMI-SHARP-QTS 1)
+(define-safe-public SHARP-QTS 2)
+(define-safe-public THREE-Q-SHARP-QTS 3)
+(define-safe-public DOUBLE-SHARP-QTS 4)
+(define-safe-public SEMI-TONE-QTS 2)
+
+(define-safe-public DOUBLE-FLAT -1)
+(define-safe-public THREE-Q-FLAT -3/4)
+(define-safe-public FLAT -1/2)
+(define-safe-public SEMI-FLAT -1/4)
+(define-safe-public NATURAL 0)
+(define-safe-public SEMI-SHARP 1/4)
+(define-safe-public SHARP 1/2)
+(define-safe-public THREE-Q-SHARP 3/4)
+(define-safe-public DOUBLE-SHARP 1)
+(define-safe-public SEMI-TONE 1/2)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; moments
(define-public ZERO-MOMENT (ly:make-moment 0 1))
(if (ly:moment<? a b) a b))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; lily specific variables.
+;; arithmetic
+(define-public (average x . lst)
+ (/ (+ x (apply + lst)) (1+ (length lst))))
-(define-public default-script-alist '())
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; parser <-> output hooks.
+
+(define-public (collect-bookpart-for-book parser book-part)
+ "Toplevel book-part handler"
+ (define (add-bookpart book-part)
+ (ly:parser-define!
+ parser 'toplevel-bookparts
+ (cons book-part (ly:parser-lookup parser 'toplevel-bookparts))))
+ ;; If toplevel scores have been found before this \bookpart,
+ ;; add them first to a dedicated bookpart
+ (if (pair? (ly:parser-lookup parser 'toplevel-scores))
+ (begin
+ (add-bookpart (ly:make-book-part
+ (ly:parser-lookup parser 'toplevel-scores)))
+ (ly:parser-define! parser 'toplevel-scores (list))))
+ (add-bookpart book-part))
+
+(define-public (collect-scores-for-book parser score)
+ (ly:parser-define!
+ parser 'toplevel-scores
+ (cons score (ly:parser-lookup parser 'toplevel-scores))))
+
+(define-public (collect-music-aux score-handler parser music)
+ (define (music-property symbol)
+ (let ((value (ly:music-property music symbol)))
+ (if (not (null? value))
+ value
+ #f)))
+ (cond ((music-property 'page-marker)
+ ;; a page marker: set page break/turn permissions or label
+ (begin
+ (let ((label (music-property 'page-label)))
+ (if (symbol? label)
+ (score-handler (ly:make-page-label-marker label))))
+ (for-each (lambda (symbol)
+ (let ((permission (music-property symbol)))
+ (if (symbol? permission)
+ (score-handler
+ (ly:make-page-permission-marker symbol
+ (if (eqv? 'forbid permission)
+ '()
+ permission))))))
+ (list 'line-break-permission 'page-break-permission
+ 'page-turn-permission))))
+ ((not (music-property 'void))
+ ;; a regular music expression: make a score with this music
+ ;; void music is discarded
+ (score-handler (scorify-music music parser)))))
+(define-public (collect-music-for-book parser music)
+ "Top-level music handler"
+ (collect-music-aux (lambda (score)
+ (collect-scores-for-book parser score))
+ parser
+ music))
+
+(define-public (collect-book-music-for-book parser book music)
+ "Book music handler"
+ (collect-music-aux (lambda (score)
+ (ly:book-add-score! book score))
+ parser
+ music))
+
+(define-public (scorify-music music parser)
+ "Preprocess MUSIC."
+
+ (for-each (lambda (func)
+ (set! music (func music parser)))
+ toplevel-music-functions)
-;; 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 $defaultpaper)
- head score)))
- (ly:parser-print-book parser book)))
+ (ly:make-score music))
-(define-public (print-score-as-book parser score)
+(define (print-book-with parser book process-procedure)
(let*
- ((head (ly:parser-lookup parser '$globalheader))
- (book (ly:make-book (ly:parser-lookup parser $defaultpaper)
- head score)))
- (ly:parser-print-book parser book)))
-
-(define-public (print-score parser score)
- (let* ((head (ly:parser-lookup parser '$globalheader))
- (book (ly:make-book (ly:parser-lookup parser $defaultpaper)
- head score)))
- (ly:parser-print-score parser book)))
-
-(define-public (collect-scores-for-book parser score)
- (let*
- ((oldval (ly:parser-lookup parser 'toplevel-scores)))
- (ly:parser-define parser 'toplevel-scores (cons score oldval))
+ ((paper (ly:parser-lookup parser '$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)) )
+
+ (if (string? output-suffix)
+ (set! base (format "~a-~a" base (string-regexp-substitute
+ "[^a-zA-Z0-9-]" "_" output-suffix))))
+
+ ;; must be careful: output-count is under user control.
+ (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))
+ (process-procedure book paper layout base)
))
-(define-public (collect-music-for-book parser music)
- (collect-scores-for-book parser (ly:music-scorify music parser)))
+(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))
-
;;;;;;;;;;;;;;;;
-; alist
+;; alist
+
(define-public assoc-get ly:assoc-get)
(define-public (uniqued-alist alist acc)
(string<? (symbol->string (car x))
(symbol->string (car y))))
-(define-public (chain-assoc x alist-list)
- (if (null? alist-list)
- #f
- (let* ((handle (assoc x (car alist-list))))
- (if (pair? handle)
- handle
- (chain-assoc x (cdr alist-list))))))
-
(define-public (chain-assoc-get x alist-list . default)
"Return ALIST entry for X. Return DEFAULT (optional, else #f) if not
found."
(if (null? list)
'()
(cons (cons (caar list) (func (cdar list)))
- (map-alist-vals func (cdr list)))
- ))
+ (map-alist-vals func (cdr list)))))
(define (map-alist-keys func list)
"map FUNC over the keys of an alist LIST, leaving the vals. "
(if (null? list)
'()
(cons (cons (func (caar list)) (cdar list))
- (map-alist-keys func (cdr list)))
- ))
-
-;;;;;;;;;;;;;;;;
-;; hash
+ (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))))))
-(if (not (defined? 'hash-table?)) ; guile 1.6 compat
- (begin
- (define hash-table? vector?)
+;;;;;;;;;;;;;;;;
+;; vector
- (define-public (hash-table->alist t)
- "Convert table t to list"
- (apply append
- (vector->list t)
- )))
+(define-public (vector-for-each proc vec)
+ (do
+ ((i 0 (1+ i)))
+ ((>= i (vector-length vec)) vec)
+ (vector-set! vec i (proc (vector-ref vec i)))))
- ;; native hashtabs.
- (begin
- (define-public (hash-table->alist t)
+;;;;;;;;;;;;;;;;
+;; hash
- (hash-fold (lambda (k v acc) (acons k v acc))
- '() t)
- )
- ))
+(define-public (hash-table->alist t)
+ (hash-fold (lambda (k v acc) (acons k v acc))
+ '() t))
;; todo: code dup with C++.
-(define-public (alist->hash-table l)
+(define-safe-public (alist->hash-table lst)
"Convert alist to table"
- (let
- ((m (make-hash-table (length l))))
+ (let ((m (make-hash-table (length lst))))
+ (map (lambda (k-v) (hashq-set! m (car k-v) (cdr k-v))) lst)
+ m))
- (map (lambda (k-v)
- (hashq-set! m (car k-v) (cdr k-v)))
- l)
+;;;;;;;;;;;;;;;;
+;; list
+
+(define (functional-or . rest)
+ (if (pair? rest)
+ (or (car rest)
+ (apply functional-and (cdr rest)))
+ #f))
+
+(define (functional-and . rest)
+ (if (pair? rest)
+ (and (car rest)
+ (apply functional-and (cdr rest)))
+ #t))
+
+(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)))))
- m))
-
+ (helper lst (make-vector n '()) (1- n)))
+(define (list-element-index lst x)
+ (define (helper todo k)
+ (cond
+ ((null? todo) #f)
+ ((equal? (car todo) x) k)
+ (else
+ (helper (cdr todo) (1+ k)))))
+ (helper lst 0))
+
+(define-public (count-list lst)
+ "Given lst (E1 E2 .. ) return ((E1 . 1) (E2 . 2) ... ) "
+
+ (define (helper l acc count)
+ (if (pair? l)
+ (helper (cdr l) (cons (cons (car l) count) acc) (1+ count))
+ acc))
+
+
+ (reverse (helper lst '() 1)))
+
+(define-public (list-join lst intermediate)
+ "put INTERMEDIATE between all elts of LST."
+
+ (fold-right
+ (lambda (elem prev)
+ (if (pair? prev)
+ (cons elem (cons intermediate prev))
+ (list elem)))
+ '() lst))
+
+(define-public (filtered-map proc lst)
+ (filter
+ (lambda (x) x)
+ (map proc lst)))
-;;;;;;;;;;;;;;;;
-; list
(define (flatten-list lst)
"Unnest LST"
'()
(if (pair? (car lst))
(append (flatten-list (car lst)) (flatten-list (cdr lst)))
- (cons (car lst) (flatten-list (cdr lst))))
- ))
+ (cons (car lst) (flatten-list (cdr lst))))))
(define (list-minus a b)
"Return list of elements in A that are not in B."
(lset-difference eq? a b))
-
-;; TODO: use the srfi-1 partition function.
-(define-public (uniq-list l)
-
- "Uniq LIST, assuming that it is sorted"
- (define (helper acc l)
- (if (null? l)
- acc
- (if (null? (cdr l))
- (cons (car l) acc)
- (if (equal? (car l) (cadr l))
- (helper acc (cdr l))
- (helper (cons (car l) acc) (cdr l)))
- )))
- (reverse! (helper '() l) '()))
-
-
-(define (split-at-predicate predicate l)
- "Split L = (a_1 a_2 ... a_k b_1 ... b_k)
-into L1 = (a_1 ... a_k ) and L2 =(b_1 .. b_k)
-Such that (PREDICATE a_i a_{i+1}) and not (PREDICATE a_k b_1).
-L1 is copied, L2 not.
-
-(split-at-predicate (lambda (x y) (= (- y x) 2)) '(1 3 5 9 11) (cons '() '()))"
-;; "
-
-;; KUT EMACS MODE.
-
- (define (inner-split predicate l acc)
- (cond
- ((null? l) acc)
- ((null? (cdr l))
- (set-car! acc (cons (car l) (car acc)))
- acc)
- ((predicate (car l) (cadr l))
- (set-car! acc (cons (car l) (car acc)))
- (inner-split predicate (cdr l) acc))
- (else
- (set-car! acc (cons (car l) (car acc)))
- (set-cdr! acc (cdr l))
- acc)
-
- ))
- (let*
- ((c (cons '() '()))
- )
- (inner-split predicate l c)
- (set-car! c (reverse! (car c)))
- c)
-)
-
-
-(define-public (split-list l sep?)
-"
-(display (split-list '(a b c / d e f / g) (lambda (x) (equal? x '/))) )
-=>
-((a b c) (d e f) (g))
-
-"
-;; " KUT EMACS.
-
-(define (split-one sep? l acc)
- "Split off the first parts before separator and return both parts."
- (if (null? l)
- (cons acc '())
- (if (sep? (car l))
- (cons acc (cdr l))
- (split-one sep? (cdr l) (cons (car l) acc))
- )
- ))
-
-(if (null? l)
- '()
- (let* ((c (split-one sep? l '())))
- (cons (reverse! (car c) '()) (split-list (cdr c) sep?))
- )))
-
+(define-public (uniq-list lst)
+ "Uniq LST, assuming that it is sorted. Uses equal? for comparisons."
+
+ (reverse!
+ (fold (lambda (x acc)
+ (if (null? acc)
+ (list x)
+ (if (equal? x (car acc))
+ acc
+ (cons x acc))))
+ '() lst) '()))
+
+(define (split-at-predicate predicate lst)
+ "Split LST = (a_1 a_2 ... a_k b_1 ... b_k)
+ into L1 = (a_1 ... a_k ) and L2 =(b_1 .. b_k)
+ Such that (PREDICATE a_i a_{i+1}) and not (PREDICATE a_k b_1).
+ L1 is copied, L2 not.
+
+ (split-at-predicate (lambda (x y) (= (- y x) 2)) '(1 3 5 9 11) (cons '() '()))"
+
+ ;; " Emacs is broken
+
+ (define (inner-split predicate lst acc)
+ (cond
+ ((null? lst) acc)
+ ((null? (cdr lst))
+ (set-car! acc (cons (car lst) (car acc)))
+ acc)
+ ((predicate (car lst) (cadr lst))
+ (set-car! acc (cons (car lst) (car acc)))
+ (inner-split predicate (cdr lst) acc))
+ (else
+ (set-car! acc (cons (car lst) (car acc)))
+ (set-cdr! acc (cdr lst))
+ acc)))
+
+ (let* ((c (cons '() '())))
+ (inner-split predicate lst c)
+ (set-car! c (reverse! (car c)))
+ c))
+
+(define-public (split-list-by-separator lst sep?)
+ "(display (split-list-by-separator '(a b c / d e f / g) (lambda (x) (equal? x '/))))
+ =>
+ ((a b c) (d e f) (g))
+ "
+ ;; " Emacs is broken
+ (define (split-one sep? lst acc)
+ "Split off the first parts before separator and return both parts."
+ (if (null? lst)
+ (cons acc '())
+ (if (sep? (car lst))
+ (cons acc (cdr lst))
+ (split-one sep? (cdr lst) (cons (car lst) acc)))))
+
+ (if (null? lst)
+ '()
+ (let* ((c (split-one sep? lst '())))
+ (cons (reverse! (car c) '()) (split-list-by-separator (cdr c) sep?)))))
(define-public (offset-add a b)
(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)))
- )
+ (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))
+
+(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))
-
(define-public (interval-widen iv amount)
(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))
+ (> (car i) (cdr i)))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; string
+
+(define-public (string-endswith s suffix)
+ (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")
+ ((< i 0) (string-append "n" (string-encode-integer (- i))))
+ (else (string-append
+ (make-string 1 (integer->char (+ 65 (modulo i 26))))
+ (string-encode-integer (quotient i 26))))))
+
+(define (number->octal-string x)
+ (let* ((n (inexact->exact x))
+ (n64 (quotient n 64))
+ (n8 (quotient (- n (* n64 64)) 8)))
+ (string-append
+ (number->string n64)
+ (number->string n8)
+ (number->string (remainder (- n (+ (* n64 64) (* n8 8))) 8)))))
+
+(define-public (ly:inexact->string x radix)
+ (let ((n (inexact->exact x)))
+ (number->string n radix)))
+
+(define-public (ly:number-pair->string c)
+ (string-append (ly:number->string (car c)) " "
+ (ly:number->string (cdr c))))
+
+(define-public (dir-basename file . rest)
+ "Strip suffixes in REST, but leave directory component for FILE."
+ (define (inverse-basename x y) (basename y x))
+ (simple-format #f "~a/~a" (dirname file)
+ (fold inverse-basename file rest)))
(define-public (write-me message x)
"Return X. Display MESSAGE and write X. Handy for debugging,
(display message) (write x) (newline) x)
;; x)
+(define-public (stderr string . rest)
+ (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)
"map F to contents of X"
(cons (f (car x)) (f (cdr x))))
-
(define-public (list-insert-separator lst between)
"Create new list, inserting BETWEEN between elements of LIST"
(define (conc x y )
(if (eq? y #f)
(list x)
- (cons x (cons between y))
- ))
+ (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)
0
(if (< x 0) -1 1)))
-(define-public (symbol<? l r)
- (string<? (symbol->string l) (symbol->string r)))
-(define-public (!= l r)
- (not (= l r)))
+(define-public (car< a b)
+ (< (car a) (car b)))
+(define-public (symbol<? lst r)
+ (string<? (symbol->string lst) (symbol->string r)))
-(define-public scale-to-unit
+(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 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)))))
-
-;;; font
-(define-public (font-family font)
- (let ((name (ly:font-name font)))
- (if name
- (regexp-substitute/global #f "^GNU-(.*)-[.0-9]*$" name 'pre 1 'post)
- (begin
- ;;(stderr "font-name: ~S\n" (ly:font-name font))
- ;;(stderr "font-file-name: ~S\n" (ly:font-file-name font))
- (ly:font-file-name font)))))
-
-(define-public (char->unicode-index font char)
- (+ (case (ly:font-encoding font)
- ((fetaMusic) (- #xe000 #x20))
- ((fetaBraces) (- #xe000 #x40))
- (else 0))
- (char->integer char)))
+ (else (ly:error (_ "unknown unit: ~S") (ly:unit)))))
+
+(define-public lily-unit->mm-factor
+ (* 25.4 (/ lily-unit->bigpoint-factor 72)))
+
+;;; 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)))
+ name-style
+ (append name-style '("Regular"))))))
+
+(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
+ "~a:0: ~a: ~a"
+ input-file-name
+ (_ "warning: ")
+ (format #f
+ (_ "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
+ "~a:0: ~a: ~a"
+ input-file-name
+ (_ "warning: ")
+ (_ "old relative compatibility not used")))
projects / lilypond.git / blobdiff