I beg to differ. "Never, never, never use goto!" is one
of those programming mantras which are taught to beginners
because at that level, the temptation is to use it where it
is not appropriate. However, as a developer becomes more
experienced, the usefulness, clarity, and simplicity of an
unencumbered "jump over there" instruction make it more
valuable when used sparingly and appropriately. And in this
case, an exception handler of a sort that basically says "go
back three lines and try it again," the use is very appropriate.
While we are drifing dangerously offtopic, I am going to ask you
to reconsider the two snippets above, and tell me which is actually
more readable -- the one that obfuscates a goto with a while loop, or
the one that explicity uses the goto when the goto is EXACTLY the
instruction being used in both, algorithmically.
Spud Zeppelin * spud@spudzeppelin.com
-
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.
|
