Signature
bool route_path_is_safe(String path)
Returns whether a normalized route path is safe to use as a route-derived file path segment.
A safe route path contains only non-empty segments made from ASCII letters, digits, _, and -. The segments . and .. are rejected.
Most request code should use runtime-populated context.params["ROUTE_PATH"] or request_query_route() instead of calling this directly.
Example
print(route_path_is_safe("docs/index") ? "safe\n" : "unsafe\n");
Output
safe