Please read How (Not) To Ask A Question. In particular, could you please post some sample data, along with exactly what parts you're trying to extract, and what the criteria are? Reread your question from the point of view of someone who doesn't already know what you want, and I think you'll see that you're leaving out pretty much everything we need to know.

Update: Now there's some data, but still no real specification of how your parameters are separated or what's really going on here. It looks like this may do what you want, but if not you'll have to step back for a moment and think about what you're doing. 

#!/usr/bin/perl -l

use strict;
use warnings;
use Data::Dumper;

my %variables;

undef $/;
$_ = <DATA>;
while (s/\s*(\w+)\s*=\s*([^=]+)\s*\z//){
  $variables{$1} = $2;
}

print Dumper(\%variables);
__DATA__
drsubc  = agauss(0, 1, 3)   delm1   = '0 + 0.045u*distm1'             
+  delm2 = '0 + 0.07u*distm2'        delm3   = '0 + 0.07u*distm3'     
+           delm4 = '0 + 0.07u*distm4'                delmt   = '0 + 0
+.07u*distmt' delml   = '0.16u + 0.43u*distml'            delam   = '0
+.32u + 0.86u*distam'         dele1   = '0 + 0.25u*diste1'            
+    dele2   = '0 + 0.25u*diste2'                delma   = '0.16u + 0.
+6u*distma'             pmsxt   = 'npmsxt + 12.5u*dpmsxt'           ti
+h     = 0.35u                capct   = '0.50u + 0.13u*xdcapct'       
+    capcti  = '0.55u + 0.13u*xdcapct'           m1t     = '0.41u + 0.
+05u*xdm1t'    m1ti    = '0.36u + 0.05u*xdm1t'             m2t     = '
+0.48u + 0.057u*dm2t'             m3t     = '0.48u + 0.057u*dm3t'     
+        m4t     = '0.48u + 0.057u*dm4t'             mtt     = '0.48u 
++ 0.057u*dmtt'             qtt     = '0.242u + 0.0202u*dqtt'         
+  htt     = '0.242u + 0.0202u*dhtt'       mlt     = '2.0u + 0.2u*dmlt
+'                amt     = '4.0u + 0.4u*damt'               e1t     =
+ '3.0u + 0.5u*de1t'            e2t     = '4.0u + 0.5u*xde1mat'       
+      mat     = '4.0u + 0.4u*dmat'                m1m2t   = '0.35u + 
+0.05u*dm1m2t'

[download]

In reply to Re: how to find what's not there with a regex? by Eimi Metamorphoumai
in thread how to find what's not there with a regex? by samizdat

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.