fmt: make formatting complete and rune-safe

2026-08-09 17:59:41 +09:00
parent 976dc8a813
commit d7d5b593c2
3 changed files with 310 additions and 116 deletions
--- a/lib/CLAUDE.md
+++ b/lib/CLAUDE.md
@@ -34,8 +34,8 @@ Signatures mirror Hare too, modulo:
  the two uses don't overlap because `T...` only attaches to a
  *param* decl. `lib/fmt` ships both the print family (`print` /
  `println` / `fprint` / `fprintln`) and the {n}-placeholder family
-  (`printf` / `fprintf` / `bsprintf` / `fatalf`); the `%`-parametric
-  modifier form is parsed but its `*mods` arg slot aborts on dispatch.
+  (`printf` / `fprintf` / `bsprintf` / `fatalf`), including Hare's
+  `%`-parametric `*mods` form.

 - `(T | U)` sum-typed parameters dispatch via `match` inside the
  callee. `strings.byteindex(haystack: str, needle: (str | rune))`,