Yes the wording is odd, but like a lot of perl docs, if you keep reading you will get all the details, like: A second e modifier will cause the replacement portion to be evaled before being run as a Perl expression.

I once wrote

s/regex/STRING /e
means replace that matched by regex with string
s/regex/CODEHERE/e
means replace that matched by regex with result of code; the e in s///e tells the s///ubstitution operator that the s//CODEHERE/e is code and not a string
s/regex/CODEHERE/e
means treat CODEHERE string as code
s/regex/CODEHERE/ee
means treat CODEHERE string as code, and treat the return value of that code as code
s/regex/CODEHERE/ee
means s/regex/eval CODEHERE/e

One time I even tried to explain this way :) 

my $string = 'string';
## s/string/replacement/;
$string->substitute( 'pattern', 'replacement' );
## s/string/codehere/e;
$string->substitute( 'pattern', sub { ... } );
## s/string/codehere/ee;
$string->substitute( 'pattern', sub { eval ... } );
## s/string/codehere/eee;
$string->substitute( 'pattern', sub { eval eval ... } );

[download]

In reply to Re: perldoc of s///ee wrong or just misleading? (read more) by Anonymous Monk
in thread perldoc of s///ee wrong or just misleading? by LanX

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.