Tag manipulating functions and additional filter by tag functions
(Redirected from LSR 871)
If you're using tags frequently, you may find the available functions quite limited. Here is a collection of additional functions to modify the tags, and to filter by the tags.
tag manipulating:
- \removeAllTags music
returns a copy of the music, where all tags are erased. Thus they will not harm when tags are created in a higher level and the music is then filtered by \keepWithTag.
- \copyTag from-tag-symbol to-tag-symbol music
returns a copy of the music, where all elements tagged with 'from-tag-symbol' also got a tag 'to-tag-symbol'.
- \renameTag from-tag-symbol to-tag-symbol music
returns a copy of the music, where the tag names 'from-tag-symbol' are altered into 'to-tag-symbol'.
- \removeTag tag-symbol music
returns a copy of the music, where only the tags 'tag-symbol' are erased, the music is kept.
- \removeTags tag-symbol-list music
similar to '\removeTag', but takes a list to rub out multiple tags from the music.
filtering by tags:
- \keepWithTags tag-symbol-list music
filters the music and keeps all tagged objects, who's tags are listed in the 'tag-symbol-list'. This 'keep with tag x or y or ...' is such a fundamental idea, it seems to be developed multiple times, and I heard it will be superseeded by the standard LILYPOND command \keepWithTag in near future.
- \keepOrRemoveWithTag tag-symbol list-of-the-relevant-tag-symbols music
keeps all elements tagged by 'tag-symbol', but it only removes tagged elements out of the 'list-of-the-relevant-tag-symbols'. Thus, this list is an limitation which tags to check. This list my include the 'tag-symbol' which to keep.
- \taggedRep start-tag-symbol end-tag-symbol rep-count-integer music
is allmost an "\repeat unfold" command. In the first repetition the elements tagged with 'start-tag-symbol' will be kept while the ones with 'end-tag-symbol' will be removed. In the last repetition it's inverted and only the 'end-tag-symbol' tagged elements will be kept while those with 'start-tag-symbol' will be removed. In all repetitions between both tagged elements will be removed.
combined funtions:
- \cleansedKeepOrRemoveWithTag tag-symbol list-of-the-relevant-tag-symbols music
Additional to \keepOrRemoveWithTag all the tags listed in 'list-of-the-relevant-tag-symbols' will be removed from the result to reduce the chance of side effects when the music is filtered again.
- \cleansedTaggedRep start-tag-symbol end-tag-symbol rep-count-integer music
Additional to \taggedRep the two tags 'start-tag-symbol' and 'end-tag-symbol' will be removed from the result to reduce the chance of side effects when the music is filtered again.
- \keepPart music, \keepScore music and \keepMidi music
These are predefined \cleansedKeepOrRemoveWithTag commands. The list of the relevant tag symbols is stored in the Parameter PSM = #'(Part Score Midi); their name shows which tag they keep.
\version "2.24"
%% http://lsr.di.unimi.it/LSR/Item?id=871
%% see also http://lsr.di.unimi.it/LSR/Item?id=219
%by: ArnoldTheresius
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% START of my personal include file 'tagging.ly'
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
#(define (remove-all-tags music)
(if (ly:music? music)
(let*
((es (ly:music-property music 'elements))
(e (ly:music-property music 'element))
(as (ly:music-property music 'articulations))
(tags (ly:music-property music 'tags)))
(if (not (eq? tags '()))
(ly:music-set-property! music 'tags '()))
(for-each remove-all-tags es)
(remove-all-tags e)
(for-each remove-all-tags as))
music))
removeAllTags =
#(define-music-function
(music) (ly:music?)
(_i "Delete all the tags in all elements of @var{music}")
(let
((new-music (ly:music-deep-copy music)))
(remove-all-tags new-music)
new-music))
#(define (copy-tags-in-music tag-from tag-to music)
(if (ly:music? music)
(let*
((es (ly:music-property music 'elements))
(e (ly:music-property music 'element))
(as (ly:music-property music 'articulations))
(tags (ly:music-property music 'tags)))
(if (memq tag-from tags)
(if (not (memq tag-to tags))
(ly:music-set-property! music 'tags (cons tag-to tags))))
(for-each (lambda (x) (copy-tags-in-music tag-from tag-to x)) es)
(copy-tags-in-music tag-from tag-to e)
(for-each (lambda (x) (copy-tags-in-music tag-from tag-to x)) as))
music))
copyTag =
#(define-music-function
(tag-from tag-to music) (symbol? symbol? ly:music?)
(_i "To all elements of @var{music} which are tagged with @var{tag-from} add a tag @var{tag-to}.")
(let
((new-music (ly:music-deep-copy music)))
(copy-tags-in-music tag-from tag-to new-music)
new-music))
#(define (rename-tag-in-music tag-from tag-to music)
(if (ly:music? music)
(let*
((es (ly:music-property music 'elements))
(e (ly:music-property music 'element))
(as (ly:music-property music 'articulations))
(tags (ly:music-property music 'tags)))
(if (memq tag-from tags)
(let
((nt (delq tag-from tags)))
(if (memq tag-to tags)
(ly:music-set-property! music 'tags nt)
(ly:music-set-property! music 'tags (cons tag-to nt)))))
(for-each (lambda (x) (rename-tag-in-music tag-from tag-to x)) es)
(rename-tag-in-music tag-from tag-to e)
(for-each (lambda (x) (rename-tag-in-music tag-from tag-to x)) as))
music))
renameTag =
#(define-music-function
(tag-from tag-to music) (symbol? symbol? ly:music?)
(_i "Replace an existing tag @var{tag-from} with tag @var{tag-to} in all elements of @var{music}")
(let
((new-music (ly:music-deep-copy music)))
(rename-tag-in-music tag-from tag-to new-music)
new-music))
#(define (remove-tag-in-music tag music)
(if (ly:music? music)
(let*
((es (ly:music-property music 'elements))
(e (ly:music-property music 'element))
(as (ly:music-property music 'articulations))
(tags (ly:music-property music 'tags)))
(if (memq tag tags)
(ly:music-set-property! music 'tags
(filter (lambda (x) (not (eq? x tag))) tags)))
(for-each (lambda (x) (remove-tag-in-music tag x)) es)
(remove-tag-in-music tag e)
(for-each (lambda (x) (remove-tag-in-music tag x)) as))
music))
removeTag =
#(define-music-function
(tag music) (symbol? ly:music?)
(_i "Remove the specified tag @var{tag} in all elements of @var{music}")
(let
((new-music (ly:music-deep-copy music)))
(remove-tag-in-music tag new-music)
new-music))
#(define (remove-tags-in-music tag-list music)
(if (ly:music? music)
(let*
((es (ly:music-property music 'elements))
(e (ly:music-property music 'element))
(as (ly:music-property music 'articulations))
(tags (ly:music-property music 'tags)))
(ly:music-set-property! music 'tags
(filter (lambda (x) (not (memq x tag-list))) tags))
(for-each (lambda (x) (remove-tags-in-music tag-list x)) es)
(remove-tags-in-music tag-list e)
(for-each (lambda (x) (remove-tags-in-music tag-list x)) as))
music))
removeTags =
#(define-music-function
(tag-list music) (list? ly:music?)
(_i "Remove all the tags specified in the list @var{tag-list} in all elements of @var{music}")
(let
((new-music (ly:music-deep-copy music)))
(remove-tags-in-music tag-list new-music)
new-music))
keepWithTags =
#(define-music-function
(taglist music) (list? ly:music?)
(_i "Include only elements of @var{music} that are tagged with at least one tag out of the list @var{taglist}.")
(music-filter
(lambda (m)
(let*
((tags (ly:music-property m 'tags))
(res #f))
(for-each
(lambda (tag) (if (memq tag tags) (set! res #t)))
taglist)
(or
(eq? tags '())
res)))
music))
#(define (remove-with-tags taglist music)
(music-filter
(lambda (m)
(let*
((tags (ly:music-property m 'tags))
(result #t))
(for-each
(lambda (tag) (if (memq tag tags) (set! result #f)))
taglist)
(or
(eq? tags '())
result)))
music))
#(define (keep-or-remove-with-tag keep-tag remove-taglist music)
(music-filter
(lambda (m)
(let*
((tags (ly:music-property m 'tags))
(res #t))
(if (not (memq keep-tag tags))
(for-each
(lambda (tag) (if (memq tag tags) (set! res #f)))
remove-taglist))
(or
(eq? tags '())
res)))
music))
keepOrRemoveWithTag =
#(define-music-function
(keep-tag remove-taglist music) (symbol? list? ly:music?)
(_i "Keep the elements of @var{music} which are tagged with @var{keep-tag}, otherwise remove them only if they are tagged with at least one symbol out the list @var{remove-taglist}.")
(music-filter
(lambda (m)
(let*
((tags (ly:music-property m 'tags))
(res #t))
(if (not (memq keep-tag tags))
(for-each
(lambda (tag) (if (memq tag tags) (set! res #f)))
remove-taglist))
(or
(eq? tags '())
res)))
music))
cleansedKeepOrRemoveWithTag =
#(define-music-function
(keep-tag remove-taglist music) (symbol? list? ly:music?)
(_i "Keep the elements of @var{music} which are tagged with @var{keep-tag}, otherwise remove them only if they are tagged with at least one symbol out the list @var{remove-taglist}. Finally wipe out all tags listed in the @var{remove-taglist} so they will not harm any future keepWithTag.")
(let
((new-music (ly:music-deep-copy
(music-filter
(lambda (m)
(let*
((tags (ly:music-property m 'tags))
(res #t))
(if (not (memq keep-tag tags))
(for-each
(lambda (tag) (if (memq tag tags) (set! res #f)))
remove-taglist))
(or
(eq? tags '())
res)))
music))))
(remove-tags-in-music remove-taglist new-music)
new-music))
taggedRep =
#(define-music-function
(start-tag end-tag rep-count music) (symbol? symbol? integer? ly:music?)
(_i "Repeat the @var{music} unfolded @var{rep-count} times. In the first repeat output keep @var{start-tag} and remove @var{end-tag} tagged elements, in the middle remove both, and at the end keep @var{end-tag} and remove @var{start-tag} tagged elements.")
(if (<= rep-count 1)
music
(make-music 'SequentialMusic 'elements
(if (<= rep-count 2)
(list
(keep-or-remove-with-tag start-tag (list start-tag end-tag) (ly:music-deep-copy music))
(keep-or-remove-with-tag end-tag (list start-tag end-tag) (ly:music-deep-copy music)))
(list
(keep-or-remove-with-tag start-tag (list start-tag end-tag) (ly:music-deep-copy music))
(make-music 'UnfoldedRepeatedMusic
'elements '() 'repeat-count (- rep-count 2) 'element
(remove-with-tags (list start-tag end-tag) (ly:music-deep-copy music)))
(keep-or-remove-with-tag end-tag (list start-tag end-tag) (ly:music-deep-copy music)))))))
cleansedTaggedRep =
#(define-music-function
(start-tag end-tag rep-count music) (symbol? symbol? integer? ly:music?)
(_i "Repeat the @var{music} unfolded @var{rep-count} times. In the first repeat output keep @var{start-tag} and remove @var{end-tag} tagged elements, in the middle remove both, and at the end keep @var{end-tag} and remove @var{start-tag} tagged elements. Finally 'rub out' the remaining tags @var{start-tag} and @var{end-tag} from the music so they will not harm any \\keepWithTag in the future.")
(let
((new-music
(if (<= rep-count 1)
music
(make-music 'SequentialMusic 'elements
(if (<= rep-count 2)
(list
(keep-or-remove-with-tag start-tag (list start-tag end-tag) (ly:music-deep-copy music))
(keep-or-remove-with-tag end-tag (list start-tag end-tag) (ly:music-deep-copy music)))
(list
(keep-or-remove-with-tag start-tag (list start-tag end-tag) (ly:music-deep-copy music))
(make-music 'UnfoldedRepeatedMusic
'elements '() 'repeat-count (- rep-count 2) 'element
(remove-with-tags (list start-tag end-tag) (ly:music-deep-copy music)))
(keep-or-remove-with-tag end-tag (list start-tag end-tag) (ly:music-deep-copy music))))))))
(remove-tags-in-music (list start-tag end-tag) new-music)
new-music))
PSM = #'(Part Score Midi)
keepPart =
#(define-music-function (music) (ly:music?)
#{ \cleansedKeepOrRemoveWithTag #'Part \PSM $music #} )
keepScore =
#(define-music-function (music) (ly:music?)
#{ \cleansedKeepOrRemoveWithTag #'Score \PSM $music #} )
keepMidi =
#(define-music-function (music) (ly:music?)
#{ \cleansedKeepOrRemoveWithTag #'Midi \PSM $music #} )
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% END of my personal include file 'tagging.ly'
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\markup { \null \translate #'( 1 . -3 ) \null } % 2.14.2 LSR problem workaroud
% Settings to keep all on one page:
\header { tagline = ##f }
myLayout = \with {
fontSize = #-4.5
\override StaffSymbol.staff-space = #(magstep -4.5)
\override StaffSymbol.thickness = #(magstep -4.5)
}
\paper {
score-markup-spacing =
#'((basic-distance . 0)
(minimum-distance . 0)
(padding . 3.5)
(stretchability . 0))
}
Music = {
\tag #'A { a'4_"A"-\tag #'Strings ^"arco [for Strings]" -\tag #'Winds ^"non legato [for Winds]"}
\tag #'B { b'4_"B" }
\tag #'C { c''4_"C" }
\tag #'Midi { d''32(_"Midi" \repeat unfold 7 { e''32 d'' } e'') }
\tag #'Part \tag #'Score { e''2\trill -\tag #'Part _"Part" -\tag #'Score _"Score" }
\tag #'InExposition { f''4_"Exp." }
\tag #'InCoda { c''4_"Coda" }
}
\markup \fontsize #-3 \typewriter \override #'(baseline-skip . 1.7) \column {
"Music = {"
" \\tag #'A { a'4_\"A\"-\\tag #'Strings ^\"arco [for Strings]\" -\\tag #'Winds ^\"non legato [for Winds]\"}"
" \\tag #'B { b'4_\"B\" }"
" \\tag #'C { c''4_\"C\" }"
" "
" \\tag #'Midi { d''32(_\"Midi\" \\repeat unfold 7 { e''32 d'' } e'') }"
" \\tag #'Part \\tag #'Score { e''2\\trill -\\tag #'Part _\"Part\" -\\tag #'Score _\"Score\" }"
" "
" \\tag #'InExposition { f''4_\"Exp.\" }"
" \\tag #'InCoda { c''4_\"Coda\" }"
"}"
" "
}
\score {
\new Staff \with \myLayout {
\keepWithTag #'FOO \removeAllTags \Music
}
\header {
piece = \markup \fontsize #-3 { \with-color #grey "\\keepWithTag #'FOO" \bold "\\removeAllTags" \italic "\\Music" }
}
}
\score {
\new Staff \with \myLayout {
\keepWithTags #'(Strings A Part InCoda) \Music
}
\header {
piece = \markup \fontsize #-3 { \bold "\\keepWithTags #'(Strings A Part InCoda)" \italic "\\Music" }
}
}
\score {
\new Staff \with \myLayout {
\keepWithTag #'Part \copyTag #'A #'Part \Music
}
\header {
piece = \markup \fontsize #-3 { \with-color #grey "\\keepWithTag #'Part" \bold "\\copyTag #'A #'Part" \italic "\\Music" }
}
}
\score {
\new Staff \with \myLayout {
\keepWithTag #'FOO \removeTag #'B \Music
}
\header {
piece = \markup \fontsize #-3 { \with-color #grey "\\keepWithTag #'FOO" \bold "\\removeTag #'B" \italic "\\Music" }
}
}
\score {
\new Staff \with \myLayout {
\keepWithTag #'FOO \removeTags #'(A B C) \Music
}
\header {
piece = \markup \fontsize #-3 { \with-color #grey "\\keepWithTag #'FOO" \bold "\\removeTags #'(A B C)" \italic "\\Music" }
}
}
\score {
\new Staff \with \myLayout {
\keepWithTag #'Part \renameTag #'B #'Part \renameTag #'InCoda #'Part \Music
}
\header {
piece = \markup \fontsize #-3 { \with-color #grey "\\keepWithTag #'Part"
\bold "\\renameTag #'B #'Part \\renameTag #'InCoda #'Part" \italic "\\Music" }
}
}
\score {
\new Staff \with \myLayout {
\keepOrRemoveWithTag #'Part #'(Part Score Midi) \Music
}
\header {
piece = \markup \fontsize #-3 { \bold "\keepOrRemoveWithTag #'Part #'(Part Score Midi)" \italic "\\Music" }
}
}
\score {
\new Staff \with \myLayout {
\keepWithTag #'FOO \cleansedKeepOrRemoveWithTag #'Part #'(Part Score Midi) \Music
}
\header {
piece = \markup \fontsize #-3 { \with-color #grey "\\keepWithTag #'FOO" \bold "\\cleansedKeepOrRemoveWithTag #'Part #'(Part Score Midi)" \italic "\\Music" }
}
}
\score {
\new Staff \with \myLayout {
\keepWithTag #'FOO \keepPart \Music
}
\header {
piece = \markup \fontsize #-3 { \with-color #grey "\\keepWithTag #'FOO" \bold "\\keepPart" \italic "\\Music" }
}
}
\score {
\new Staff \with \myLayout {
\taggedRep #'FirstOnly #'LastOnly #5 {
c'16 -\tag #'FirstOnly \f \< d' e' f' g' a' b' c''
d''\> c'' b' a' g' f' e' d' -\tag #'LastOnly \p
}
}
\header {
piece = \markup \fontsize #-3 {
\bold "\\taggedRep #'FirstOnly #'LastOnly #5 "
\scale #'(0.95 . 1.0) "{ c'16 -\\tag #'FirstOnly \\f \\< d' ... d''\\> ... d' -\\tag #'LastOnly \\p }"
}
}
}
