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"be consistent"

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yes, you could match on the $ and lookup the variable name in a hash, and replace with the value. Expects the template variables to be uppercase (A-Z and _ only) and the hash keys to be lower case.
use strict; use warnings; my %data = ( first_name => 'Foo', email => 'Bar', ); $/ = undef; my $s = <DATA>; $s =~ s/\$([A-Z_]+)/exists $data{lc $1}?$data{lc $1}:$&/esg; print $s; __DATA__ First name is $FIRST_NAME and<br> email is: $EMAIL. junk is $JUNK

In reply to Re^3: inserting HTML file in a PERL script by davidrw
in thread inserting HTML file in a PERL script by thetallblondguy

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

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