Re: convert.ly errors

[Jean Abou Samra]

Le 14/09/2022 à 19:47, Jean Louis Thiry a écrit :
> Hello everyone,
>
> When using convert.ly <http://convert.ly> (\version “2.23.12”) 
> everything is fine as I do not work on complex scores.
> But if I compile a 2.19.81 file, for example, converted into 2.23.12 
> everything goes well except for a few errors (always the same) which 
> seem to have been overlooked by convert-ly during the conversion.
> In the case of my old files which compile well with 2.18.2 or 2.19.81,
> \override ChordName #'font-series = #’bold
>
> I have to manually transform this declaration into:
> \override ChordName.font-series = #’bold
>
> or:top-markup-spacing #'basic-distance=#0
> which becomes
> top-markup-spacing.basic-distance=#0
>
> The messages are:
>
>     /Users/JLT/Documents/Lilypond/Partitions/Irlandais/Poll
>     Ha'Penny/Poll-Ha-Penny.ly:87 <http://poll-ha-penny.ly:87>:23:
>     Avertissement : deprecated: missing `.' in property path
>     ChordName.font-series
>     \override ChordName
>     #'font-series = #’bold
>
>     /Users/JLT/Documents/Lilypond/Partitions/Irlandais/Poll
>     Ha'Penny/Poll-Ha-Penny.ly:184 <http://poll-ha-penny.ly:184>:19:
>     Avertissement : deprecated: missing `.' in property path
>     Beam.length-fraction
>     \override Beam
>     #'length-fraction = #1.2
>
>     /Users/JLT/Documents/Lilypond/Partitions/Irlandais/Poll
>     Ha'Penny/Poll-Ha-Penny.ly:185 <http://poll-ha-penny.ly:185>:19:
>     Avertissement : deprecated: missing `.' in property path Tie.thickness
>     \override Tie
>     #'thickness = #3
>
>
> So my question is: is this an oversight in the writing of convert.ly 
> <http://convert.ly> or is it too complicated to implement this control 
> in the conversion process of convert.ly <http://convert.ly>?




Well, the new syntax has been around for a long time (2012).
convert-ly did have a conversion rule, but in the version where
the change was done, not in the version where the old syntax was
made to actively emit a deprecation warning. It will change
your override syntax if you run it as

convert-ly --from=2.17.5 --to=2.17.6 ...

David, do you think it would be reasonable to put the same
convert-ly rule again for 2.23.11?

Jean