lilypond-common-includes/book_include.ly
2023-11-22 15:13:41 +01:00

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\version "2.18"
#(define song-list '())
#(define (files-in-directory dirname)
;;; Generate list containing filenames
(let ((dir (opendir dirname)))
(let next ((f (readdir dir))
(files '()))
(cond ((eof-object? f)
(closedir dir)
files)
(else
(next (readdir dir) (if (string-match "^(0|\\.)" f) files (cons f files))))))))
#(define (file-to-stats filename)
(set! song-list (cons filename song-list)))
#(define additional-page-switch-label-list '())
#(define additional-page-numbers #f)
normalPageNumbers =
#(define-void-function (parser location) ()
(set! additional-page-numbers #f)
)
additionalPageNumbers =
#(define-void-function (parser location) ()
(set! additional-page-numbers #t)
)
#(define (real-page-number layout label)
(let ((table (ly:output-def-lookup layout 'label-page-table)))
(if (list? table)
(assoc-get label table)
#f))
)
#(define display-pages-list '())
#(define (build-display-pages-list layout)
(if (null? display-pages-list)
(let calculate-display-page ((switch-label-list additional-page-switch-label-list))
(let* ((label (caar switch-label-list))
(is-additional (cdar switch-label-list))
(real-page (real-page-number layout label))
(rest-switch-label-list (cdr switch-label-list))
(display-page (if (null? rest-switch-label-list)
(if is-additional (- real-page 1) real-page)
(let* ((previous-label (caar rest-switch-label-list))
(previous-is-additional (cdar rest-switch-label-list))
(previous-display-page (calculate-display-page rest-switch-label-list)))
(+ previous-display-page
(if previous-is-additional
(if is-additional 0 1)
(if is-additional
(- (- real-page (real-page-number layout previous-label)) 1)
(- real-page (real-page-number layout previous-label)))
)
)
)
))
)
(set! display-pages-list (acons label display-page display-pages-list))
display-page
)))
display-pages-list
)
#(define-markup-command (custom-page-number layout props label real-current-page-number)
(symbol? number?)
#:category other
"
@cindex referencing page number, in text
Reference to a page number. @var{label} is the label set on the referenced
page (using the @code{\\label} command), @var{gauge} a markup used to estimate
the maximum width of the page number, and @var{default} the value to display
when @var{label} is not found.
(If the current book or bookpart is set to use roman numerals for page numbers,
the reference will be formatted accordingly -- in which case the @var{gauge}'s
width may require additional tweaking.)"
(let* ((gauge-stencil (interpret-markup layout props "XXX"))
(x-ext (ly:stencil-extent gauge-stencil X))
(y-ext (ly:stencil-extent gauge-stencil Y)))
(ly:stencil-outline
(ly:make-stencil
`(delay-stencil-evaluation
,(delay (ly:stencil-expr
(let* ((display-page (assq-ref (build-display-pages-list layout) label))
(real-current-page (if (negative? real-current-page-number) (real-page-number layout label) real-current-page-number))
(page-markup
(if (assq-ref additional-page-switch-label-list label)
(make-concat-markup (list (number-format 'arabic display-page)
(make-char-markup (+ 97 (- real-current-page (real-page-number layout
(let find-earliest-additional-label
((rest-additional-page-switch-label-list (member (cons label #t) additional-page-switch-label-list)))
(if (cdadr rest-additional-page-switch-label-list)
(find-earliest-additional-label (cdr rest-additional-page-switch-label-list))
(caar rest-additional-page-switch-label-list)))
))))))
(number-format 'arabic (+ display-page (- real-current-page (real-page-number layout label))))
))
(page-stencil (interpret-markup layout props page-markup))
(gap (- (interval-length x-ext)
(interval-length (ly:stencil-extent page-stencil X)))))
(interpret-markup layout props
(make-line-markup
(list
(make-hspace-markup gap)
page-markup)))))))
x-ext
y-ext)
(make-filled-box-stencil x-ext y-ext))))
includeSong =
#(define-void-function (parser location textproc filename) ((procedure?) string?)
#{
\bookOutputName #filename
#}
(ly:parser-parse-string (if (< (list-ref (ly:version) 1) 19) (ly:parser-clone parser) (ly:parser-clone))
(ly:format "\\include \"~a/~a/~a.ly\"" songPath filename filename))
(let ((label (gensym "index")))
(set! additional-page-switch-label-list
(acons label additional-page-numbers additional-page-switch-label-list))
(set! song-list
(acons (string->symbol filename)
(acons 'label label (acons 'header HEADER (acons 'music MUSIC (acons 'layout LAYOUT (acons 'text #{ \markuplist \setsongfilename $filename $(if textproc (textproc TEXT) TEXT) #} '())))))
song-list))
))
blankpage =
#(define-void-function (parser location) ()
(set! song-list
(acons 'emptyPage
'()
song-list)))
imagepage =
#(define-void-function (parser location xsize filename) (number? string?)
(set! song-list
(acons 'imagePage
(acons 'xsize xsize (acons 'filename filename '()))
song-list)))
#(define-markup-command (pagecenter layout props stuff)(markup?)
(interpret-markup layout props
(let ((halfpaperheight (/ (ly:output-def-lookup layout 'paper-height) 2))
(halfstuffheight (/ (interval-length (ly:stencil-extent (interpret-markup layout props stuff) Y)) 2)))
(make-fill-line-markup (list (make-pad-to-box-markup '(0 . 0) (cons (- (- halfpaperheight halfstuffheight)) (+ halfpaperheight halfstuffheight)) stuff)))
)))
songs =
#(define-void-function (parser location) ()
(for-each (lambda (songitems)
(ly:book-add-bookpart! (if (< (list-ref (ly:version) 1) 19) (ly:parser-lookup parser '$current-book) (ly:parser-lookup '$current-book))
(let ((filename (car songitems))
(songvars (cdr songitems)))
(if (eq? filename 'emptyPage)
#{ \bookpart { \markup { \null } } #}
(if (eq? filename 'imagePage)
(let ((xsize (assq-ref songvars 'xsize))
(filename (ly:format "~a/~a" imagePagePath (assq-ref songvars 'filename))))
#{ \bookpart {
\paper {
%{
inner-margin = 0
outer-margin = 0
binding-offset = 0
top-margin = 0
bottom-margin = 0
%}
print-page-number = ##f
last-bottom-spacing = #'((basic-distance . 0) (minimum-distance . 0) (padding . 0))
page-count = 1
}
\markup { \pagecenter { \epsfile #X #xsize #filename } }
} #}
)
(let ((header #{ \bookpart { $(assq-ref songvars 'header) \header {
songfilename = $(symbol->string filename)
myindexlabel = #(assq-ref songvars 'label)
} } #})
;(header (assq-ref songvars 'header))
(music (assq-ref songvars 'music))
(layout (assq-ref songvars 'layout))
(text (assq-ref songvars 'text))
(label (assq-ref songvars 'label)))
#{
\bookpart {
$header
\headerToTOC #header #label
\score { $music \layout { $layout } }
$text
}
#}))))))
(reverse song-list)
))
#(define (boernel-stats)
(let (
(songs (map (lambda (song) (symbol->string (car song))) (alist-delete 'emptyPage song-list)))
(opticalline "---------------------------------------------------------"))
(ly:warning (string-join (list
opticalline
(string-concatenate (list "Inkludiert: " (number->string (length songs)) " Lieder\n"))
;(string-join songs "\n")
"Nicht inkludiert:"
opticalline
(string-join (sort-list (lset-difference string=? (files-in-directory songPath) songs) string<?) "\n")
opticalline
) "\n" )
)))
#(define (writeTOCtoCSV)
(let ((song-lines (map (lambda (song)
(list
(symbol->string (car song))
))
(alist-delete 'imagePage (alist-delete 'emptyPage song-list)))))
(call-with-output-file "toc.csv"
(lambda (port)
(csv-write (cons '("filename") song-lines) port))
)))
%% https://github.com/NalaGinrut/guile-csv/blob/master/csv/csv.scm
#(define* (sxml->csv sxml port #:key (delimiter #\,))
(let* ((d (string delimiter))
(csv (map (lambda (l) (string-join l d)) sxml)))
(for-each (lambda (l)
(format port "~a~%" l))
csv)))
#(define csv-write sxml->csv)
%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Include Images once and reference them:
#(define bbox-regexp
(ly:make-regex "%%BoundingBox:[ \t]+([0-9-]+)[ \t]+([0-9-]+)[ \t]+([0-9-]+)[ \t]+([0-9-]+)"))
#(define (get-postscript-bbox string)
"Extract the bbox from STRING, or return #f if not present."
(let*
((match (ly:regex-exec bbox-regexp string)))
(if match
(map (lambda (x)
(string->number (ly:regex-match-substring match x)))
(cdr (iota 5)))
#f)))
#(define eps-references '())
#(define-public (eps-file-ref->stencil axis size just-embed file-name)
(let*
((already-embedded (assq (string->symbol file-name) eps-references))
(counter (if already-embedded (cadr already-embedded) (if (null-list? eps-references) 1 (+ 1 (cadar eps-references)))))
(form-name (ly:format "IDForm~a" counter))
(data-name (ly:format "ImageData~a" counter))
(eps-content (ly:gulp-file file-name))
(contents (ly:format "~a execform" form-name))
(bbox (if already-embedded (cddr already-embedded) (get-postscript-bbox (car (string-split eps-content #\nul)))))
(bbox-size (if (= axis X)
(- (list-ref bbox 2) (list-ref bbox 0))
(- (list-ref bbox 3) (list-ref bbox 1))
))
(factor (if (< 0 bbox-size)
(exact->inexact (/ size bbox-size))
0))
(scaled-bbox
(map (lambda (x) (* factor x)) bbox))
;; We need to shift the whole eps to (0,0), otherwise it will appear
;; displaced in lilypond (displacement will depend on the scaling!)
(translate-string (ly:format "~a ~a translate" (- (list-ref bbox 0)) (- (list-ref bbox 1))))
(clip-rect-string (ly:format
"~a ~a ~a ~a rectclip"
(list-ref bbox 0)
(list-ref bbox 1)
(- (list-ref bbox 2) (list-ref bbox 0))
(- (list-ref bbox 3) (list-ref bbox 1)))))
(if (not already-embedded) (set! eps-references
(acons (string->symbol file-name) (cons counter bbox) eps-references)))
(if bbox
(ly:make-stencil
(list
'embedded-ps
(string-append
(if (and already-embedded (not just-embed)) "" (ly:format
"
/~a
currentfile
<< /Filter /SubFileDecode
/DecodeParms << /EODCount 0 /EODString (*EOD*) >>
>> /ReusableStreamDecode filter
~a
*EOD*
def
/~a
<< /FormType 1
/BBox [~a ~a ~a ~a]
/Matrix [ 1 0 0 1 0 0]
/PaintProc
{ pop
/ostate save def
/showpage {} def
/setpagedevice /pop load def
~a 0 setfileposition ~a cvx exec
ostate restore
} bind
>> def
" data-name eps-content form-name (list-ref bbox 0) (list-ref bbox 1) (list-ref bbox 2) (list-ref bbox 3) data-name data-name))
(if just-embed "" (ly:format
"
gsave
currentpoint translate
BeginEPSF
~a dup scale
~a
~a
%%BeginDocument: ~a
~a
%%EndDocument
EndEPSF
grestore
" factor translate-string clip-rect-string file-name contents
))))
;; Stencil starts at (0,0), since we have shifted the eps, and its
;; size is exactly the size of the scaled bounding box
(if just-embed '(0 . 0) (cons 0 (- (list-ref scaled-bbox 2) (list-ref scaled-bbox 0))))
(if just-embed '(0 . 0) (cons 0 (- (list-ref scaled-bbox 3) (list-ref scaled-bbox 1)))))
(ly:make-stencil "" '(0 . 0) '(0 . 0)))
))
#(define-markup-command (epsfileref layout props axis size file-name)
(number? number? string?)
#:category graphic
"
@cindex inlining an Encapsulated PostScript image
Inline an EPS image. The image is scaled along @var{axis} to
@var{size}.
@lilypond[verbatim,quote]
\\markup {
\\general-align #Y #DOWN {
\\epsfile #X #20 #\"context-example.eps\"
\\epsfile #Y #20 #\"context-example.eps\"
}
}
@end lilypond"
(if (ly:get-option 'safe)
(interpret-markup layout props "not allowed in safe")
(eps-file-ref->stencil axis size #f file-name)
))
#(define-markup-command (epsfileembed layout props file-name)
(string?)
#:category graphic
"
@cindex inlining an Encapsulated PostScript image
Inline an EPS image. The image is scaled along @var{axis} to
@var{size}.
@lilypond[verbatim,quote]
\\markup {
\\general-align #Y #DOWN {
\\epsfile #X #20 #\"context-example.eps\"
\\epsfile #Y #20 #\"context-example.eps\"
}
}
@end lilypond"
(if (ly:get-option 'safe)
(interpret-markup layout props "not allowed in safe")
(eps-file-ref->stencil X 30 #t file-name)
))