Add binary which converts JSON schemas to regex

Cargo.toml

@@ -40,3 +40,8 @@ build-python-extension-release = "python setup.py build_rust --inplace --release
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
+
+[[bin]]
+name = "convert-json-schema"
+test = false
+bench = false

src/bin/convert-json-schema.rs

@@ -0,0 +1,8 @@
+use outlines_core::json_schema::build_regex_from_schema;
+
+fn main() {
+    let schema = std::io::read_to_string(std::io::stdin()).unwrap();
+    let regex = build_regex_from_schema(&schema, None).unwrap();
+    println!("Regex: {}", regex);
+    println!("Regex len: {}", regex.len());
+}