Here's a naieve implementation based on a hash lookup and a regexp. 
#!/usr/local/bin/perl -w
my %tokens= ( 'general-scheduledb' => 'e:\users\dbush\schedule.db',
              'animal-type' => 'mammal',
              'species' => 'camel',
            );
my $inistring='start2=schedule.exe;schedule "localhost:%general-schedu
+ledb%";NORMAL_PRIORITY_CLASS;%species%';
$inistring =~ s/%([^%]+)%/$tokens{$1}/eg;
print $inistring;
__END__
start2=schedule.exe;schedule "localhost:e:\users\dbush\schedule.db";NO
+RMAL_PRIORITY_CLASS;camel

[download]
I fudged your example string a bit to more clearly illustrate the approach.

Note that this is a naieve implementation - you'll have to add checking that all tokens exist (as this code does not catch typo's in the ini file) for example.

Update: Renamed %values hash to %tokens. Naming a hash values is asking for a headache :).

Also, I missed the part that your token values are in the ini file as well. That means that using my implementation, you would build the %tokens hash from the [general] (or whichever) part of your ini file. However, you probably should start looking at modules for this, as jenda suggests below.

CU
Robartes-

In reply to Re: Substituting tokens into configuration values by robartes
in thread Substituting tokens into configuration values by dbush

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.