nataraj:

It may just be a bit too simple to bother with a module:

$ cat pm_1232611.pl
use strict;
use warnings;

my %replacements = qw( FOO fubar    BAZ bazoom    BIM Kaboom! );
my @strings = (
   "what a %%FOO%% for a %%BAZ%%",
   "Eenie, meenie, minie, %%BIM%%",
   "The quick %%RED%% fox..."
);

for my $str (@strings) {

    print "INPUT: <$str>\n";
    my @vars = $str =~ m/%%(\w+)%%/g;
    for my $var (@vars) {
        if (exists $replacements{$var}) {
            $str =~ s/%%$var%%/$replacements{$var}/g;
        }
        else {
            print "Warning, no replacement for %%$var%%\n";
        }
    }
    print "OUTPUT: <$str>\n\n";
}

$ perl pm_1232611.pl
INPUT: <what a %%FOO%% for a %%BAZ%%>
OUTPUT: <what a fubar for a bazoom>

INPUT: <Eenie, meenie, minie, %%BIM%%>
OUTPUT: <Eenie, meenie, minie, Kaboom!>

INPUT: <The quick %%RED%% fox...>
Warning, no replacement for %%RED%%
OUTPUT: <The quick %%RED%% fox...>

[download]

...roboticus

When your only tool is a hammer, all problems look like your thumb.

In reply to Re^5: Prepocessing perl code / substing variables by roboticus
in thread Prepocessing perl code / substing variables by nataraj

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.