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| <? prevnext "<h1>Flexible</h1>" ?> |
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| Tcl is an extremely flexible language. It has to be, to work as |
| an embedded language in the variety of environments in which it's |
| deployed. |
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| <B><FONT COLOR="#A020F0">proc</FONT></B> <B><FONT COLOR="#0000FF">decr</FONT></B> {<FONT COLOR="#B8860B">varname</FONT>} { |
| <B><FONT COLOR="#A020F0">uplevel</FONT></B> [<B><FONT COLOR="#A020F0">list</FONT></B> <B><FONT COLOR="#A020F0">incr</FONT></B> $<FONT COLOR="#B8860B">varname</FONT> -1] |
| } |
| <B><FONT COLOR="#A020F0">set</FONT></B> a 5 |
| decr a |
| <B><FONT COLOR="#A020F0">puts</FONT></B> $<FONT COLOR="#B8860B">a</FONT></PRE> |
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