Routing - Define custom regex for dynamic page params

[manniL]

Describe the feature

Right now, dynamic urls generated via file-based routing in pages use the "default" regex from vue router for their params. To change that, hooks like pages:extend would be necessary.

Instead of that, it would be great to provide the regex otherwise, e.g. via page meta or (maybe even file-name), if possible.

Related: #15311

Additional information

• Would you be willing to help implement this feature?
• Could this feature be implemented as a module?

Final checks

• Read the contribution guide.
• Check existing discussions and issues.

[danielroe]

I think it would be good to support this via definePageMeta. See also #13408 for previous discussion about doing this via FS.