A pattern up to 512 characters compiles; a longer one is refused naming the limit

mvzr's Regex holds 64 operations, so a pattern much past 64 bytes was refused as bad regular expression. pardes now compiles into mvzr's SizedRegex(512, 64), and a pattern that is too long (told apart from a malformed one by compiling it with room) says it is longer than mvzr's 512 operations.

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

1 files changed, 1 insertions, 0 deletions

diff --git a/src/sam_edit.zig b/src/sam_edit.zig
index a88728aa..113ad14f 100644
--- a/src/sam_edit.zig
+++ b/src/sam_edit.zig
@@ -445,6 +445,7 @@ const Exec = struct {
     fn compile(ex: *Exec, pat: []const u8, c: u8) Failure!regexp.Regex {
         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.Bad => fail(ex.why, "bad regexp in {c} command", .{c}),
         };
     }