On Jun 21, [EMAIL PROTECTED] said:

>home|&htmlBody,&Header,&homebody,&footer
>
>So it should get the list of subrutined to call but I can not figure out
>how to call them since they are strings and not hard coded into the
>code.  Basicly I can get the values and print them out but not call
>them.  Does anyone have and tips for calling a sub using the name from a
>string? perl.call('htmlBody') does not work as one site pointed out. I
>guess thats for something else all together.  Thanx

You want a dispatch table:

  my %functions = (
    HTML_B => \&htmlbody,
    HOME_B => \&homebody,
    HEAD => \&header,
    FOOT => \&footer,
    # ...
  );

Then, assuming our string is something like "HTML_B HEAD HOME_B FOOT", we
would do:

  for my $funcname (split ' ', $actions) {
    if ($functions{$funcname}) {
      $functions{$funcname}->();
    }
    else {
      warn "unsupported action '$funcname' attempted\n";
    }
  }

Another solution, though more dangerous, is eval().

  my $code = 'print 10 + 24';
  eval $code;  # prints 34

-- 
Jeff "japhy" Pinyan      [EMAIL PROTECTED]      http://www.pobox.com/~japhy/
RPI Acacia brother #734   http://www.perlmonks.org/   http://www.cpan.org/
** Look for "Regular Expressions in Perl" published by Manning, in 2002 **
<stu> what does y/// stand for?  <tenderpuss> why, yansliterate of course.
[  I'm looking for programming work.  If you like my work, let me know.  ]


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