A class with non-ASCII runes matches them: [éa-z] is taken as (é|[a-z]), a range up to 256 runes spelled out

mvzr's classes hold bytes, and it refused a multibyte member as a bad expression. Rewriting the class before compiling, as ^a|^b already is, needs no mvzr patch; runes that differ only in their last byte go as one alternative (\xc3[\xa0-\xbf] for [à-ÿ]) so a 256-rune range fits the 512-operation limit, which counts the pattern as rewritten. A wider range and [^é] are refused, naming why.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/sam_edit.zig b/src/sam_edit.zig
index ea1105bd..0f317a83 100644
--- a/src/sam_edit.zig
+++ b/src/sam_edit.zig
@@ -461,6 +461,8 @@ const Exec = struct {
         return regexp.Regex.compile(pat) catch |err| switch (err) {
             error.Anchor => fail(ex.why, "{s}", .{regexp.Regex.e_anchor}),
             error.TooLong => fail(ex.why, "{s}", .{regexp.Regex.e_long}),
+            error.WideRange => fail(ex.why, "{s}", .{regexp.Regex.e_wide}),
+            error.NegatedRunes => fail(ex.why, "{s}", .{regexp.Regex.e_negated}),
             error.Bad => fail(ex.why, "bad regexp in {c} command", .{c}),
         };
     }