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Printing to a file

Posted on 2004-08-11
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Last Modified: 2010-03-05
I'm trying to parse an html file and print ascii to an outside file. When I do the following, nothing happens and no file is generated. I can get it to print to the console if I print directly without an outputfile. See anything wrong?

# Define module to use
use HTML::Parser();
# Create instance
$p = HTML::Parser->new(start_h => [\&start_rtn, 'tag'],
                text_h => [\&text_rtn, 'text'],
                end_h => [\&end_rtn, 'tag']);
# Start parsing the following HTML string

my $outputfile = "converted.html";
open (OUTPUTFILE, ">outputfile");

$p->parse('

//SEVERAL LINES OF HTML

');

sub start_rtn {
# Execute when start tag is encountered
    foreach (@_) {
       print OUTPUTFILE "===\nStart: $_\n";
    }
}
sub text_rtn {
# Execute when text is encountered
    foreach (@_) {
       print OUTPUTFILE"\tText: $_\n";
    }
}
sub end_rtn {
# Execute when the end tag is encountered
    foreach (@_) {
       print OUTPUTFILE "End: $_\n";
    }
}

close (OUTPUTFILE);





THANKS!


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Comment
Question by:dprasad
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7 Comments
 
LVL 84

Expert Comment

by:ozo
ID: 11770465
#what happens if you try
open (OUTPUTFILE, ">$outputfile") or die "Can't open $outputfile $!";
0
 
LVL 84

Expert Comment

by:ozo
ID: 11770522
You might also try opening the file before starting the parser
0
 
LVL 84

Accepted Solution

by:
ozo earned 800 total points
ID: 11770533
(sorry, temorary blindness)
Did you want to write to "outputfile" or "converted.html" ?
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LVL 8

Assisted Solution

by:davorg
davorg earned 400 total points
ID: 11770762
Try checking the results of the "open" call. Also turn on "use warnings" so you get warnings if you try to write to a file that hasn't been opened successfully.
0
 
LVL 2

Assisted Solution

by:PaulS_III
PaulS_III earned 400 total points
ID: 11772205
I think ozo is correct. from what I understan of this, your OUTPUTFILE variable is your handle to the opened file. So in your line open(OUTPUTFILE, ">outputfile"); you are openeing a file simply named outputfile. Search your system for that file name, I bet you'll find it. If you want to right to converted.html then you need to put the $ infront of outputfile, like this open(OUTPUTFILE, ">$outputfile");  This will write to the converted.html file
0
 
LVL 5

Assisted Solution

by:ITcrow
ITcrow earned 400 total points
ID: 11868091

my $outputfile = "converted.html";
open (OUTPUTFILE, ">outputfile");

Like previous poster suggested, change the lines mentioned above to:

my $outputfile = "converted.html";
open (OUTPUTFILE, ">$outputfile") || die "Failed to open $outputfile. $!\n";

Then expect a file called converted.html generated.
0

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