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# 1  
Old 10-14-2011
Help with perl script.
Hi,
I have one folder that contains more number of xml files and extract some specific information form xml files. I used libxml to extract wanted information one xml and i succeded but now how can i extract from folder and each xml file using perl script. i tried like this for one xml file
Code:
use warnings;
 use strict;
 use XML::LibXML::Reader;
  my $file;
 open( $file, 'formal.xml');
 my $reader = XML::LibXML::Reader->new( IO => $file ) or die ("unable to open file");
     my %hash;
 while ($reader->nextElement( 'nuber' ) ) {
 
 my $Number = $reader->readInnerXml();
 
 $reader->nextElement( 'data' ); 
 my $information = $reader->readOuterXml(); 
 
 $nums{$Number}= $information;
 
 print( "  NUMBER:$Number\n" );
     print( " Information:$information\n" );
 
    }
  print my $num=keys%hash;
 close($file);

above code working properly and extracted what i want now i need script that will search all files in the folder and extract same information form all files.
# 2  
Old 10-14-2011
Quote:
Originally Posted by veerubiji
...search all files in the folder and extract same information form all files.
Use the glob operator to loop through the files so you can process them one at a time.

Code:
foreach $file (glob "*") {
  # process the file
}

tyler_durden
# 3  
Old 10-14-2011
Hi,
I readed about globe operator it will search all files like
Code:
glob("*.c")

it will search all .c files in folder.
but your format is different how can i use this operator in my function.
# 4  
Old 10-14-2011
Quote:
Originally Posted by veerubiji
...
Code:
glob("*.c")

it will search all .c files in folder.
...how can i use this operator in my function.
By passing your file format as the parameter to the glob function.
Exactly the way you've done in your posted example.

tyler_durden
# 5  
Old 10-15-2011
Hi,
i tried like this but its not working can you suggest how to use.
Code:
use warnings;
 use strict;
 use XML::LibXML::Reader;
  my $file;

 foreach $file glob("*.xml") {

 my $reader = XML::LibXML::Reader->new( IO => $file ) or die ("unable to open file");
     my %hash;
 while ($reader->nextElement( 'nuber' ) ) {
 
 my $Number = $reader->readInnerXml();
 
 $reader->nextElement( 'data' ); 
 my $information = $reader->readOuterXml(); 
 
 $nums{$Number}= $information;
 
 print( "  NUMBER:$Number\n" );
     print( " Information:$information\n" );
 
    }
}
  print my $num=keys%hash;
 close($file);

but it doesn't give any errors also. may br is there any wrong using for loop.
# 6  
Old 10-15-2011
Quote:
Originally Posted by veerubiji
Hi,
i tried like this but its not working can you suggest how to use.
Code:
use warnings;
 use strict;
 use XML::LibXML::Reader;
  my $file;

 foreach $file glob("*.xml") {

 my $reader = XML::LibXML::Reader->new( IO => $file ) or die ("unable to open file");
     my %hash;
 while ($reader->nextElement( 'nuber' ) ) {
 
 my $Number = $reader->readInnerXml();
 
 $reader->nextElement( 'data' ); 
 my $information = $reader->readOuterXml(); 
 
 $nums{$Number}= $information;
 
 print( "  NUMBER:$Number\n" );
     print( " Information:$information\n" );
 
    }
}
  print my $num=keys%hash;
 close($file);

but it doesn't give any errors also. may br is there any wrong using for loop.
Or maybe you do not have the nuber element in your files.

tyler_durden
# 7  
Old 10-17-2011
Hi,
sorry i am getting errors while running above code my errors are like this
Code:
 
1)" my variable $file masks earlier declaration in same statement at line "
my $reader = XML::LibXML::reader->new(IO=>$file).
2)syntax error at
  "foreach $file glob("*.xml").

.
i have one doubt where should i have to given the folder name and also where shold i end for loop.
finally glob function gives only .xml files in the current directory. but in my problem i need to search one folder that contains many sub folder in that subfolder i have .c and .h and .xml files, i need to find .xml files and extract some information.
Last edited by veerubiji; 10-17-2011 at 11:03 AM..
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