lean4-htt/tests/lean/run/8067.lean
Markus Himmel bf60550ce5
chore: rename Substring to Substring.Raw (#11154)
This PR renames `Substring`  to `Substring.Raw`.

This is to signify its status as a second-class citizen (not deprecated,
but no real plans for verification, like `String.Pos.Raw`) and to free
up the name `Substring` for a possible future type `String.Substring :
String -> Type` so that `s.Substring` is the type of substrings of `s`.

The functions `String.toSubstring` and `String.toSubstring'` will remain
for now for bootstrapping reasons.
2025-11-16 09:30:04 +00:00

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#guard !"".toRawSubstring.isNat
#guard !"-".isInt
#guard "-".toInt? = none