Below is a string example where I;m trying to substitute ? for # and % for &.

#Result& The percent of births as healthy births has increased in recent years in response to the Healthy Births initiative.:#Approach& The prenatal, birthing, and postpartum parts of the birth process have been changed substantially. We will have a brighter day to look forward to.:#Prospect& If the same old pace of this change continues, it will be a wonderful day.

I'm just using simple substitution.

$analysis =~ tr/#/?/;
$analysis =~ tr/&/%/;

[download]

I've tried this escaping these characters with no luck.

The tr suggested failed. Some of the characters may need to be escaped.

In reply to problem changing string characters by craigt

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.