ame pattern, which matches the character
 with hexadecimal value <tt>0x2014</tt>.

 <a name="ubc"> <p>Unicode blocks and categories are written with the
 <tt>\p</tt> and <tt>\P</tt> constructs as in
 Perl. <tt>\p{</tt><i>prop</i><tt>}</tt> matches if the input has the
 property <i>prop</i>, while \P{</tt><i>prop</i><tt>}</tt> does not match if
 the input has that property.  Blocks are specified with the prefix
 <tt>In</tt>, as in <tt>InMongolian</tt>.  Categories may be specified with
 the optional prefix <