Thanks a bunch for everyones comments.  Really appreciate it.  Here is what I am going to use:

The Ascii.txt looks something like this:
"X[6]" + "XM7"  + "Z_data[17]" + "Z[18][20]"

[download]
Then the user supplied the mapping file 
X[6] X_6_
XM7 X_7_
Z_data[17] Z_17_
Z[18][20] Z_18__20_

[download]
Then my perl script looked like this: 

#use strict;
#use warnings;
$regexp = table2;
$i =0;

open RE, $regexp;
while (<RE>) {
  chop;
  ($search[$i], $replace[$i]) = split(/ /, $_ );
  $search[$i] =~ s/\[/\\[/g;
  $search[$i] =~ s/\]/\\]/g;
  $i++;
}
  

while (<>) {
  for($i=0; $i < $#search; $i++) {
    s{$search[$i]}{$replace[$i]}g;
  }
  print;
}

[download]

In reply to Re: Want to get regexp list from file by perluser456
in thread Want to get regexp list from file by perluser456

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.