The Monastery's moral equivalent of an "edit button" involves a couple steps (but ONLY for a registered Monk -- AM's need not apply):

1. open the node you wish to edit (so it's the top item in the browser window or tab)
2. scroll down below the formatted version of what you originally entered to see --
               ...VOILA!
   a text-entry box (just like the one where you entered your original)
3. Edit -- DO NOT DELETE WHAT YOU'VE POSTED -- simply use <strike>...</strike> around anything you wish to disavow (code: add a comment in the erroneously posted code or create a new code block and put the strike tags outside the original code tags). Be sure to add a note -- something like "<p><b>UPDATE: </b> (tell us here what you changed and, if relevant, why).</p>"
4. Use the "update" button but only after carefully reviewing the text-entry box because there is NO preview. I.e., if you screw it up, you'll have to edit again (albeit in the same window or tab)

When done, you may have something like this:

Initial narrative here. Blah, blah, blah, etc. and so forth....

 for $_(@foobar) {
    print $foo
}
[download]

UPDATE: Copy/paste error in OP (wrong var in first line; no semi-colon in Ln 2); correct code below:

<c> for my $foo(@foobar) {
    print $foo;
}
[download]

But, again, ya' gotta' register to make this work.

I was made aware that Anonymous Monk can't edit posts, so because the OP was AnonyMonk, the below doesn't fit for this case. It is relevant for all logged in users however.

To edit your post, simply click on the title link, and the edit box will be near the bottom of the ensuing page :)

If you wouldn't mind, could you copy in the explanation points you made in Re^2: Breaking from a foreach loop, returning to position to your original top-level question/post? There are significantly important bits of info, and you'll have a higher probability of getting qualified answers if the top post has all of the info (there's more of a chance of people skipping over your question if it doesn't have enough detail).

Unfortunately, this isn't available to me because I posted as an anonymous monk.

Yes, I was just made aware of this privately, and have edited my post above to reflect this. Thanks!