Solved

Modify An HTML using Perl

Posted on 1998-09-25
4
248 Views
Last Modified: 2010-03-05
I want to ask about how to modify a html using CGI script
(PERL).
I use this to create a CGI Script that can modify name, address, and the comment from a guestbook html file?
How we can load the name, address, comment to our script and
we modify it?
0
Comment
Question by:ichen
  • 2
4 Comments
 
LVL 3

Accepted Solution

by:
zhongbing earned 20 total points
ID: 1205003
if i got all your idea then:
1. write a html with a form with the fields you need: name, address, and comment all anything else. the form's action should be the name of your perl excutable file.
2. the perl script get all the parameter, then instead of modify a html, if should totally wirte a new html file to stdout. it means the perl script create a new html and send it to stdout, the user's brower will get the html.

3 the html example (which have a filed name and message):

<head>
<title> post a message </title>
</head>
<body>
<form method="get"  action="http://sac.uky.edu/cgi-bin/cgiwrap/~jcao0/zh.pl">
<P><input type="text" name="name" size="20">
<P> message: <textarea name="message" cols=30 rows=4></textarea>
<P>
<input type="submit" value="submit">
<input type="reset" value="reset">
<form>
</html>
4 perl cgi example(it get the name and message value then wirte it to new html):
#! /usr/bin/perl
$|=1;
print "Content-type:text/html\n\n";
#print "test perl\n";
 
$buffer=$ENV{'QUERY_STRING'};
 
print"$buffer";
 
@pairs=split(/&/, $buffer);
foreach $pair(@pairs){
        ($name, $value)=split(/=/,$pair);
        $value=~tr/+/ /;
$value=~s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
        $form{$name}=$value;
}
print"<title> message board </title>";
print"<h1> message board </h1>";
print"<p> name : $form{'name'}";
print"<p> message : $form{'message'}";
0
 
LVL 1

Author Comment

by:ichen
ID: 1205004
Can I use the perl script  to modify the name, address and comment?
0
 
LVL 1

Author Comment

by:ichen
ID: 1205005
Can I use the perl script  to modify the name, address and comment?
0
 

Expert Comment

by:mazares
ID: 1205006
I use a much simpler method for this kind of situation. I have the "shell" of the html document already present -- in his case, a guestbook form. I place "flags" such as <!put_id_here> in the html document. Then, my script opens the html file, reads it in as STDIN, outputting it a line at a time. If the script encounters the <!flag>, it then outputs the unique information (in html format) required by the particular flag's location in the document. Thus, the resulting html document is customized according to the user, the user's request, or whatever.
0

Featured Post

Ransomware-A Revenue Bonanza for Service Providers

Ransomware – malware that gets on your customers’ computers, encrypts their data, and extorts a hefty ransom for the decryption keys – is a surging new threat.  The purpose of this eBook is to educate the reader about ransomware attacks.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

There are many situations when we need to display the data in sorted order. For example: Student details by name or by rank or by total marks etc. If you are working on data driven based projects then you will use sorting techniques very frequently.…
Checking the Alert Log in AWS RDS Oracle can be a pain through their user interface.  I made a script to download the Alert Log, look for errors, and email me the trace files.  In this article I'll describe what I did and share my script.
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question