tPtr</B> (out)<DD>
The address of the first character in the range is stored here, or
NULL if there is no such range.
<P><DT>const char <B>**endPtr</B> (out)<DD>
The address of the character just after the last one in the range
is stored here, or NULL if there is no such range.
<P><DT>int <B>cflags</B> (in)<DD>
OR-ed combination of the compilation flags <B>TCL_REG_ADVANCED</B>,
<B>TCL_REG_EXTENDED</B>, <B>TCL_REG_BASIC</B>, <B>TCL_REG_EXPANDED</B>,
<B>TCL_REG_QUOTE</B>, <B>TCL_REG_NOCASE</B>, <B>TCL_REG_NEW