 or Tcl commands.</P>

<H2 CLASS="HeadingC">
Comments</H2>
<P>
<A NAME="IX_Comments:in Tcl code">
 </A>
<A NAME="IX_Tcl:comments">
 </A>
If the first non-blank character in a command is <CODE>
#</CODE>
 (a number sign), then everything from the # up through the next newline character is treated as comment and discarded by the parser.</P>


<H2 CLASS="HeadingC">
Argument Grouping</H2>
<P>
Normally each argument field ends at the next white space (tabs or spaces), but curly braces (&quot;{&quot; and &quot;}&q