Reading/writing numerical values

[rettinghaus]

All cases where we have integer or decimal attribute values are treated as empty with value "0". That makes it impossible to explicitly set encoded values to zero in Verovio (e.g. beam@slope).

[lpugin]

No, we override the default in many places
https://github.com/rism-digital/libmei/blob/develop/tools/includes/vrv/config.yml

[rettinghaus]

We override positive integer values by setting the default to -1. But this will not work with e.g. @trans.diat.

[lpugin]

Could you explain why it would not work if you change it in config.yml? Sorry, I don't understand

[rettinghaus]

Oh, I overlooked the VRV_UNSET possiblity. Sorry.