ubs</I>;
    Tcl_RegExpIndices *<I>matches</I>;
    long <I>extendStart</I>;
} <B>Tcl_RegExpInfo</B>;</PRE>
<P>
The <I>nsubs</I> field contains a count of the number of parenthesized
subexpressions within the regular expression.  If the <B>TCL_REG_NOSUB</B>
was used, then this value will be zero.  The <I>matches</I> field
points to an array of <I>nsubs</I>+1 values that indicate the bounds of each
subexpression matched.  The first element in the array refers to the
range matched by the entire regular expres