I'm pretty sure that the reason is:
{
# do loop stuff to be done at least once
last if BREAK-CONDITION;
# do middle loop stuff <<< This part was left out
redo;
}
which I'd still use while(1) for. Plus it allows you to do:
{
# read next line
last if NoMoreLines
# extract item from line
redo if NoItemInLine
last if EndOfItemListFound
# categorize item
redo if WrongItemCategory
# check for updates
redo if NoUpdatesThisCategory;
# check permissions
last if NoUpdatesAllowed;
redo if ThisUpdateNotAllowed;
# do update
redo if NotFatal;
# handle fatal error
# (note, no "redo" here so this part isn't really
# part of the "loop", just stuff to do once unless
# "last" gets triggered above.)
}
# done with items
where it is very easy to throw in a new check or new code in. But, as I said elsewhere, I find that power to be too easy to abuse. YMMV.
-
tye
(but my friends call me "Tye")
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|