<HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="PLTCL-UNKNOWN"
>41.7. Modules and the <CODE
CLASS="FUNCTION"
>unknown</CODE
> Command</A
></H1
><P
>        PL/Tcl has support for autoloading Tcl code when used.
        It recognizes a special table, <TT
CLASS="LITERAL"
>pltcl_modules</TT
>, which
        is presumed to contain modules of Tcl code.  If this table
        exists, the module <TT
CLASS="LITERAL"
>unknown</TT
> is fetched from the table
        and loaded int