Module Build_path_prefix_map

type path = string
type path_prefix = string
type error_message = string
val encode_prefix : path_prefix -> string
val decode_prefix : string -> (path_prefix, error_message) result
type pair = {
  1. target : path_prefix;
  2. source : path_prefix;
}
val encode_pair : pair -> string
val decode_pair : string -> (pair, error_message) result
type map = pair option list
val encode_map : map -> string
val decode_map : string -> (map, error_message) result
val rewrite_opt : map -> path -> path option
val rewrite : map -> path -> path