finetuning chord lyrics engraver

private_includes/base/verses_with_chords.ily

@@ -249,6 +249,13 @@ Chord_lyrics_spacing_engraver =
          (lyrics-seen-since-break #f)
          (have-a-rest #f)
          (stanza #f)
+         ; Akkord auf einer Skip-Silbe "_" nach Wortende soll über die folgende Silbe
+         (word-continues #f)
+         (continuation-this-step #f)
+         (lyric-skip-this-step #f)
+         (syllable-this-step #f)
+         (chord-this-step #f)
+         (chord-on-lyric-skip #f)
          (place-at-right-edge
           (lambda (grob anchor padding)
             (let ((anchor-width (interval-length (ly:grob-extent anchor anchor X))))
@@ -256,6 +263,25 @@ Chord_lyrics_spacing_engraver =
               (ly:grob-set-property! grob 'X-offset (+ padding anchor-width))
               ))))
      (make-engraver
+      ((start-translation-timestep engraver)
+       (set! continuation-this-step #f)
+       (set! lyric-skip-this-step #f)
+       (set! syllable-this-step #f)
+       (set! chord-this-step #f)
+       )
+      ((stop-translation-timestep engraver)
+       (if (and chord-on-lyric-skip (not (eq? chord-on-lyric-skip chord-this-step)))
+           (begin
+             (if (and syllable-this-step (not chord-this-step))
+                 (begin
+                   (ly:grob-set-parent! chord-on-lyric-skip X syllable-this-step)
+                   (ly:grob-set-property! chord-on-lyric-skip 'X-offset 0)
+                   (ly:grob-set-property! chord-on-lyric-skip 'extra-spacing-width '(+inf.0 . -inf.0))
+                   (set! lyric-width-since-last-chord (interval-length (ly:grob-extent syllable-this-step syllable-this-step X)))))
+             (set! chord-on-lyric-skip #f)))
+       (if syllable-this-step
+           (set! word-continues continuation-this-step))
+       )
       (listeners
        ((multi-measure-rest-event engraver event)
         (set! have-a-rest #t)
@@ -263,8 +289,19 @@ Chord_lyrics_spacing_engraver =
        ((rest-event engraver event)
         (set! have-a-rest #t)
         )
+       ((hyphen-event engraver event)
+        (set! continuation-this-step #t)
+        )
+       ((extender-event engraver event)
+        (set! continuation-this-step #t)
+        )
        ((lyric-event engraver event)
         (set! have-a-rest #f)
+        ; "_" wird zu " " und erzeugt keine LyricText
+        (if (equal? (ly:event-property event 'text) " ")
+            (begin
+              (set! lyric-skip-this-step #t)
+              (set! chord-on-lyric-skip #f)))
         (set! music-columns-for-last-syllable 0)
         )
        ((break-event engraver event)
@@ -274,6 +311,7 @@ Chord_lyrics_spacing_engraver =
         (set! last-printed-chord #f)
         (set! chord-width-since-last-lyric 0)
         (set! lyrics-seen-since-break #f)
+        (set! chord-on-lyric-skip #f)
         ))
       (acknowledgers
        ((musical-paper-column-interface this-engraver grob source-engraver)
@@ -294,6 +332,7 @@ Chord_lyrics_spacing_engraver =
                     (ly:grob-set-property! grob 'X-offset gap-for-starting-rest)
                     )))
             )
+        (set! syllable-this-step grob)
         (set! last-lyric-syllable grob)
         (set! chord-width-since-last-lyric 0)
         (set! lyrics-seen-since-break #t)
@@ -321,6 +360,9 @@ Chord_lyrics_spacing_engraver =
                                              (cons (car (ly:grob-property last-lyric-syllable 'extra-spacing-width '(0 . 0))) (+ chord-gap chord-overwidth)))
                       )
               (set! lyric-width-since-last-chord (* (if last-lyric-syllable (interval-length (ly:grob-extent last-lyric-syllable last-lyric-syllable X)) 0) (- 1 (/ 1.0 music-columns-for-last-syllable))))
+              (set! chord-this-step grob)
+              (if (and lyric-skip-this-step (not have-a-rest) (not word-continues))
+                  (set! chord-on-lyric-skip grob))
               (set! last-printed-chord grob)
               (set! last-lyric-syllable #f)
               )