Gossamer Forum: Products: Links 2.0: Discussions: Problem with that "print qq~" thing

Jul 19, 1999, 10:19 AM

Guillaume LAfrance

New User (2 posts)

Jul 19, 1999, 10:19 AM

Post #1 of 4

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Problem with that "print qq~" thing

Well, it started with a problem with search.cgi but I've just narrowed it down to this:

If I have a script that looks like this:

Code:
#!/local/bin/perl 

print "Content-type: text/html\n\n"; 


print "<html>"; 

print "<head>"; 
print "<title>Ye</title>"; 
print "</head>"; 

print "<body>"; 

print "<h1>Ye</h1>"; 

print "</body>"; 
print "</html>";

Everything works fine. But if I do this:

Code:
#!/local/bin/perl 

print "Content-type: text/html\n\n"; 

print qq~ 

<html> 

<head> 
<title>Ye</title> 
</head> 

<body> 

<h1>Ye</h1> 

</body> 
</html>

I get automatically bumped to the directory where the script is and I get a "Forbidden" server error.

Help. Smile

GL
lafranc@cam.org

Jul 19, 1999, 10:35 AM

dan

Enthusiast (760 posts)

Jul 19, 1999, 10:35 AM

Post #2 of 4

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Re: Problem with that "print qq~" thing In reply to

You need to close it with ~;

Dan Smile

Jul 19, 1999, 10:40 AM

Guillaume LAfrance

New User (2 posts)

Jul 19, 1999, 10:40 AM

Post #3 of 4

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Re: Problem with that "print qq~" thing In reply to

Ah...hum...well, I just forgot to write it in the message. It's in the actual script.

Nevertheless, the original problem is that in site_html.pl, everything in printed out with those qq~ thingies and search.cgi, which refers to site_html.pl, doesn't work when I execute it. But I guess that if in site_html.pl everything was printed out with the print ""; syntax, search.cgi would work fine.

GL
lafranc@cam.org

[This message has been edited by Guillaume LAfrance (edited July 19, 1999).]

Jul 21, 1999, 8:06 PM

pugdog

Veteran (6956 posts)

Jul 21, 1999, 8:06 PM

Post #4 of 4

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Re: Problem with that "print qq~" thing In reply to

>> But I guess that if in site_html.pl
>> everything was printed out with the
>> print ""; syntax, search.cgi would work fine.

The way perl is defined, the "" notation is the 'default' (meaning assumed without further clarification) but the qq<delimeter><delimeter> is the 'generic' (meaning can be adapated to your specific string).

In otherwords, "" is the shorthand for the qq<delimeter><delimeter> notation, so both should work in any context if they used
properly.

print "one-line string";

is linguistically/functionally equivalent to:

print qq~
possible
multiline
string
~;

*ALL* characters need to be escaped ie: '\' since qq notation is the same as "" notation which performs variable and character substitutions.