takes a bus path and a prefix string, plus a place to store the
returned external identifier string. If the bus path does not
start with the specified prefix, 0 is returned and the returned
- string is set to <constant>NULL</constant>. Otherwise the the
+ string is set to <constant>NULL</constant>. Otherwise the
string following the prefix is unescaped and returned in the
external identifier string.</para>
- <para>The escaping used will will replace all characters which are
+ <para>The escaping used will replace all characters which are
invalid in a bus object path by <literal>_</literal> followed by a
hexadecimal value. As a special case, the empty string will be
replaced by a lone <literal>_</literal>.</para>