feat: add regex

__regex/hyperscan/src/main.rs

@@ -0,0 +1,18 @@
+use hyperscan::prelude::*;
+
+fn main() {
+    let pattern = pattern! {"test"; CASELESS | SOM_LEFTMOST};
+    let db: BlockDatabase = pattern.build().unwrap();
+    let scratch = db.alloc_scratch().unwrap();
+    let mut matches = vec![];
+
+    db.scan("some test data", &scratch, |id, from, to, _flags| {
+        println!("found pattern #{} @ [{}, {})", id, from, to);
+
+        matches.push(from..to);
+
+        Matching::Continue
+    }).unwrap();
+
+    assert_eq!(matches, vec![5..9]);
+}