NAME
    IOToolkit - Perl extension to create logfiles

SYNOPSIS
    Sample Script:

        use strict;
        use warnings;
        use Getopt::Long;                 # processing command-line parameters
        use IOToolkit;

        package main; 
        use vars qw($getopt_loglevel $program $programname);

        $program="logging";
        $programname = $program.".pl";
        my $logfilename = $program.".log";
        my $version = "1.00";
        my $description = "Logging-Sample";

        GetOptions("loglevel=s" => \$getopt_loglevel);

        if (not(defined($getopt_loglevel))) {
           print "$description ($programname)\n";
           print "Usage: \n$programname\n --loglevel=EMCDQ\n\n";
           die "You did not provide any parameters. The program ended here.\n\n";
        } 

        logme("open",$logfilename);
        logme("D","$programname V$version started --------------------------------------------------");
        logme("M","This is a MESSAGE");
        logme("D","This is a DEBUG-MESSAGE");
        logme("E","This is an ERROR-MESSAGE");
        logme("Q","This is a SQL-QUERY-MESSAGE");
        logme("C","This is a CONFIGURATION-MESSAGE");
        logme("M","FATAL- and SYSTEM-MESSAGES (F/S) are always logged.");
        logme("M","If the loglevel parameter contains - no messages are displayed.");
        #logme("F","This is a FATAL-MESSAGE");
        logme("D","$programname V$version ended   --------------------------------------------------");
        logme("close");

    This displays and creates a logfile like this:

        2004-09-09 10:23:57 [logging.pl] <D> logging.pl V1.00 started --------------------------------------------------
        2004-09-09 10:23:57 [logging.pl] <M> This is a MESSAGE
        2004-09-09 10:23:57 [logging.pl] <D> This is a DEBUG-MESSAGE
        2004-09-09 10:23:57 [logging.pl] <E> This is an ERROR-MESSAGE
        2004-09-09 10:23:57 [logging.pl] <Q> This is a SQL-QUERY-MESSAGE
        2004-09-09 10:23:57 [logging.pl] <C> This is a CONFIGURATION-MESSAGE
        2004-09-09 10:23:57 [logging.pl] <M> FATAL- and SYSTEM-MESSAGES (F/S) are always logged.
        2004-09-09 10:23:57 [logging.pl] <M> If the loglevel parameter contains - no messages are displayed.
        2004-09-09 10:23:57 [logging.pl] <D> logging.pl V1.00 ended   --------------------------------------------------

ABSTRACT
    Provides a human-readable logfile and is ment to replace "print" in your
    programs.

DESCRIPTION
    This module was written to provide an easy way to log messages. It
    checks for an option --loglevel=EMCDEQ- where each character stands for
    a certain level. e.g.

       E=Error
       S=System
       M=Message
       D=Debug
       -=Silent

    the minus ("-") has a special meaning: supresses output to the screen
    and ONLY logs them to the file. Please see the sample script for more
    details.

    The function gettimestamp returns the current time in the format used
    for the logfile. If you specifiy the format &gettimestamp("filename") it
    returns something like this: 20041009131500

    IOToolkit::moduleinfo prints a list of loaded modules.

    IOToolkit::trim trims a variable.

  EXPORT
    logme and gettimestamp are exported.

SEE ALSO
    http://www.linke.de

AUTHOR
    Markus Linke, markus.linke@linke.de

COPYRIGHT AND LICENSE
    Copyright 2004 by Markus Linke

    This library is free software; you can redistribute it and/or modify it
    under the same terms as Perl itself.