Re: Re: Check tag value

This is what I have so far ..I am still working on it 

#!/usr/bin/perl

my $dir = "/tmp/asheesh";
my gdir = "$dir/temp";

opendir (DIR, $dir) or die "can't open dir";
@files = readdir(DIR);
closedir DIR;

foreach $files(@files)
 {
   unless ( $files eq "." || $files eq "..")
     {
        open (FILE, "$files") or die "can't open file";
        @Lines=<FILE>;
        close FILE;
        foreach  $Lines(@Lines)
         {
           chomp $Lines;
           
if ( $Lines eq "<NumberofDays>\d+</NumberofDays>" )

[download]

Replies are listed 'Best First'.
Re: Re: Re: Check tag value by eXile (Priest) on Apr 08, 2004 at 15:09 UTC
Hi, you're code: `if ( $Lines eq "<NumberofDays>\d+</NumberofDays>" )` [download] should be something like: `if ( $Lines =~ m\|<NumberofDays>(\d+)</NumberofDays>\| )` [download] 3 differences between your and my line: `eq` vs. `=~` to compare against a regular expression you use `=~` the regular expression is in 'm\|' and '\|' characters This is to make clear you are using a regular expression the \d+ is in '(' and ')' characters This is used to 'capture' the value of the expression inbetween them. In this case it would capture the value in $1. The rule is the first ()-match is captured in $1, the second in $2 etc. So in your code you could continue with something like `print $1` [download] Hope this helps getting you started. For documentation on regular expressions there are 2 good tutorials that come with perl that were not mentioned here: perlrequick perlretut	[reply] [d/l] [select]
Re: Re: Re: Check tag value by hmerrill (Friar) on Apr 08, 2004 at 12:01 UTC
You need a regular expression in your if-test. Start by doing: `perldoc perl` [download] at a command prompt. You'll notice if you page down a little that there are these 2 perldocs listed for regular expressions: `perlre Perl regular expressions, the rest of the story perlreref Perl regular expressions quick reference` [download] So, if you want to read the 1st one, you would do `perldoc perlre` [download] at a command prompt. The 1st response to your question gave you a regular expression to try. Read the perldocs, try a regular expression, and post back if you still have problems. HTH.	[reply] [d/l] [select]
Re: Re: Re: Re: Check tag value by Anonymous Monk on Apr 08, 2004 at 12:06 UTC
I have no clue about perl ..thanks for your direction	[reply]
Re: Re: Re: Re: Check tag value by Anonymous Monk on Apr 08, 2004 at 12:20 UTC
I can't seem to use perldoc	[reply]
Re: Re: Re: Re: Re: Check tag value by hmerrill (Friar) on Apr 08, 2004 at 12:51 UTC
What platform are you on? Besides accessing the perldocs on your own machine, which you seem to be having trouble with, you can also access the perdocs online at www.perldoc.com. Here is the link for 'perlre': http://www.perldoc.com/perl5.6.1/pod/perlre.html HTH.	[reply]


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