Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

Re^2: I need to insert spaces and get the values for all the variables

by rahulruns (Sexton)
on Sep 04, 2013 at 08:11 UTC ( #1052247=note: print w/ replies, xml ) Need Help??


in reply to Re: I need to insert spaces and get the values for all the variables
in thread I need to insert spaces and get the values for all the variables

Hi the point I am not able to get is to how to separate the data for the variables If the line is dvgqu="0.00"vgrq="0.00"w="0.00"devce="d"elped_me="174" how do I read it like dvgqu="0.00" vgrq="0.00" w="0.00" devce="d" elped_me="174" This would help in reading all the variables and their values. Without a proper separation I am not able to make out a pattern to match or to use for split


Comment on Re^2: I need to insert spaces and get the values for all the variables
Re^3: I need to insert spaces and get the values for all the variables
by Random_Walk (Parson) on Sep 04, 2013 at 08:14 UTC
    my %vars = split /=?"/, $line;

    This splits on any " optionally preceded by the = sign.

    Update

    use strict; use warnings; use Data::Dumper; my @store; # put the results in here while (<DATA>) { chomp; next unless /\S+/; # Ignore empty lines my %vars = split /=?"/; # Do the splits push @store, \%vars; # record these samples } print Dumper \@store; # Look what we got __DATA__ dvgqu="0"vgrq="0"w="0"devce="db"elped_me="0"r="0"rmb="0"rrqm="0"vcm="0 +"ul="0"w="0"wmb="0"wrqm="0" dvgqu="0"vgrq="0"w="0"devce="d"elped_me="0"r="0"rmb="0"rrqm="0"vcm="0" +ul="0"w="0"wmb="0"wrqm="0" dvgqu="0.00"vgrq="0.00"w="0.00"devce="db"elped_me="1"r="0.00"rmb="0.00 +"rrqm="0.00"vcm="0.00"ul="0.00"w="0.00"wmb="0.00"wrqm="0.00" dvgqu="0.00"vgrq="58.91"w="0.09"devce="d"elped_me="1"r="0.00"rmb="0.00 +"rrqm="0.00"vcm="0.09"ul="0.05"w="5.50"wmb="324.00"wrqm="35.00"

    Update 2

    I just saw the variable name 'w' appears twice in the lines. In this case my code only keeps the last value. You may need to do something a little more complicated

    Cheers,
    R.

    Pereant, qui ante nos nostra dixerunt!

      Your suggestion to split on " inspired me to use it as the record separator like this:

      use strict; use warnings; use Data::Dumper; my %variables; my ($var,$val); local $/='"'; # thanks to Random_Walk while(<DATA>){ chomp; if( /=/ ) { s/[\n=]//g; # cleanup $var = $_; } else { push @{ $variables{$var} }, $_; } } print Dumper \%variables; __DATA__ dvgqu="0"vgrq="0"w="0"devce="db"elped_me="0"r="0"rmb="0"rrqm="0"vcm="0 +"ul="0"w="0"wmb="0"wrqm="0" dvgqu="0"vgrq="0"w="0"devce="d"elped_me="0"r="0"rmb="0"rrqm="0"vcm="0" +ul="0"w="0"wmb="0"wrqm="0" dvgqu="0.00"vgrq="0.00"w="0.00"devce="db"elped_me="1"r="0.00"rmb="0.00 +"rrqm="0.00"vcm="0.00"ul="0.00"w="0.00"wmb="0.00"wrqm="0.00" dvgqu="0.00"vgrq="58.91"w="0.09"devce="d"elped_me="1"r="0.00"rmb="0.00 +"rrqm="0.00"vcm="0.09"ul="0.05"w="5.50"wmb="324.00"wrqm="35.00"

      I find this solution to be very nice and elegant, probably because I would never have thought of it :).

      I'm sure there's a module somewhere out there that allows you to merge several hashes into a hash of arrays, which may be a more convenient structure depending on what you want to do with it.

      Here is another way to get those values in a AoH without the multiple m problem :

      use strict; use warnings; use Data::Dumper; my %store; # put the results in here while (<DATA>) { while(m< (\w+) = "((?:[^"\\]|\\.)+)" >gx) { # $store{$1} ||= []; ## useless: see hdb's answer below push @{ $store{$1} }, $2; # or push @array, {$. => $2} if you +want to keep track of the line of definition } } print Dumper \%store; # Look what we got __DATA__ dvgqu="0"vgrq="0"w="0"devce="db"elped_me="0"r="0"rmb="0"rrqm="0"vcm="0 +"ul="0"w="0"wmb="0"wrqm="0" dvgqu="0.00"vgrq="58.91"w="0.09"devce="d"elped_me="1"r="0.00"rmb="0.00 +"rrqm="0.00"vcm="0.09"ul="0.05"w="5.50"wmb="324.00"wrqm="35.00"
      $VAR1 = { 'ul' => [ '0', '0.05' ], 'w' => [ '0', '0', '0.09', '5.50' ], 'vgrq' => [ '0', '58.91' ], 'r' => [ '0', '0.00' ], 'rrqm' => [ '0', '0.00' ], 'elped_me' => [ '0', '1' ], 'devce' => [ 'db', 'd' ], 'dvgqu' => [ '0', '0.00' ], 'wrqm' => [ '0', '35.00' ], 'rmb' => [ '0', '0.00' ], 'vcm' => [ '0', '0.09' ], 'wmb' => [ '0', '324.00' ] };

Re^3: I need to insert spaces and get the values for all the variables
by hdb (Parson) on Sep 04, 2013 at 08:20 UTC

    Try something like this

    while(<DATA>){ print join " ", /([^"=]+="[^"]+")/g; }

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1052247]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (3)
As of 2014-07-10 04:22 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    When choosing user names for websites, I prefer to use:








    Results (198 votes), past polls