Anything similar to to-barline for extender lines of cresc/dim?

[Mats Bengtsson]

Hi,

Is there anything analogous to Hairpin.to-barline = #t that applies to 
the extender line of textual dynamics like \cresc or \dim?

Unfortunately, I don't have a copy of Gould, but to me all the options I 
tried below look worse than having an extender line that ends exactly 
below the bar line.

\version "2.25.9"

\fixed c' {
<>^"Extending into next bar"
c4 \cresc d e f |
g \f f g a |
g4 \dim f e d |
c \mf  d c b, |
<>^"Especially ugly at line breaks"
c4 \cresc d e f |
g \f f g a |
g4 \dim f e d | \break
c1 \mf |
<>^"Ended (too early) before the bar"
c4 \cresc d e f \! |
g \f f g a |
g4 \dim f e d \! |
c \mf d c b, |
<>^\markup\column{"Still too early" "adjusting bound-details" }
\override DynamicTextSpanner.bound-details.right.attach-dir = #RIGHT c4 
\cresc d e f \! |
g \f f g a |
g4 \dim f e d \! | \break
c1 \mf |

}

Any ideas, or should I file it as a feature request?

   /Mats