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#!/usr/local/bin/perl
use CGI qw(:standard);
use CGI::Carp;
print header();
print start_html("File Upload Example");
print strong("Version "),$CGI::VERSION,p;
print h1("File Upload Example"),
'This example demonstrates how to prompt the remote user to
select a remote file for uploading. ',
strong("This feature only works with Netscape 2.0 browsers."),
p,
'Select the ',cite('browser'),' button to choose a text file
to upload. When you press the submit button, this script
will count the number of lines, words, and characters in
the file.';
@types = ('count lines','count words','count characters');
# Start a multipart form.
print start_multipart_form(),
"Enter the file to process:",
filefield('filename','',45),
br,
checkbox_group('count',\@types,\@types),
p,
reset,submit('submit','Process File'),
endform;
# Process the form if there is a file name entered
if ($file = param('filename')) {
$tmpfile=tmpFileName($file);
print hr(),
h2($file),
h3($tmpfile);
my($lines,$words,$characters,@words) = (0,0,0,0);
while (<$file>) {
$lines++;
$words += @words=split(/\s+/);
$characters += length($_);
}
close $file;
grep($stats{$_}++,param('count'));
if (%stats) {
print strong("Lines: "),$lines,br if $stats{'count lines'};
print strong("Words: "),$words,br if $stats{'count words'};
print strong("Characters: "),$characters,br if $stats{'count characters'};
} else {
print strong("No statistics selected.");
}
}
print hr(),
a({href=>"../cgi_docs.html"},"CGI documentation"),
hr,
address(
a({href=>'/~lstein'},"Lincoln D. Stein")),
br,
'Last modified July 17, 1996',
end_html;
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