Function taplo_config 

pub fn taplo_config() -> String

.taplo.toml: which schema Even Better TOML applies to which preset file.

One rule per system, matching its family’s filenames in the three library directories, then one fallback rule on the generic schema that excludes every family glob. The exclusion is what routes a family file to its own schema: Taplo breaks a tie between two matching rules by taking the later one, which is the fallback, so rule order alone would select the wrong file.

Every glob begins with /. Taplo joins a relative glob onto the workspace root’s filesystem path but matches it against the document URL with only the scheme stripped, and on Windows those two differ by a leading /, so a relative glob matches nothing there. The generated header says so too, for the reader who opens the file rather than this function.