Compares two bytes case insensitively.
Replaces the URL path of u with proc of the former path.
Formats url-path as a string with "/" as a delimiter and no params.
Like normalize-path, but does not resolve symlinks.
Returns, as a list, the portion of p after base, assuming base is a prefix of p.
Returns the directory part of p, returning (current-directory) if it is relative.
Prepends base to p, unless p is absolute.
Removes all the prefix ".."s from p.
Formats exn with (error-display-handler) as a string.