e any newline in addition to its normal function.
<P><DT><A NAME="M15"><B>TCL_REG_NOSUB</B></A><DD>
Compile for matching that reports only success or failure,
not what was matched.  This reduces compile overhead and may improve
performance.  Subsequent calls to <B>Tcl_RegExpGetInfo</B> or
<B>Tcl_RegExpRange</B> will not report any match information.
<P><DT><A NAME="M16"><B>TCL_REG_CANMATCH</B></A><DD>
Compile for matching that reports the potential to complete a partial
match given more text (see below).
<P