Re: How to do a goto with Applescript?
Re: How to do a goto with Applescript?
- Subject: Re: How to do a goto with Applescript?
- From: Alex Zavatone <email@hidden>
- Date: Mon, 10 Jan 2011 11:14:15 -0600
If structured properly, aren't handler calls or method calls goto statements for your purpose? On Jan 10, 2011, at 10:50 AM, Mark J. Reed wrote:
On Mon, Jan 3, 2011 at 11:27 AM, Skeeve <email@hidden> wrote:
Am 03.01.11 15:45, schrieb David Crowe:
There's always a better way to write the code than use a goto.
Some well known scientists and programmers disagree like Linus Torvalds, Steve McConnell or Donald Knuth http://pplab.snu.ac.kr/courses/adv_pl05/papers/p261-knuth.pdf
Goto is not inherently evil, and Dijkstra may have overstated his case, but the point stands. In 1968 people were writing code to maximize efficient use of space. Things got moved around, and you wound up with control flow that was nothing like the order of the source code text. That's what they mean by spaghetti code.
The occasional goto can be quite liberating, saving you from having to exit out of deeply nested loops or conditionals or whatnot. Pure structured-programming advocates look down not only on goto, but also on break ("exit loop", "last", whatever your language calls it), insisting that loops should have only one entry and exit. In my experience that often means most of the code is deeply nested inside some conditionals and indented halfway across the page. So a purist I ain't. :)
But you are pure. 100% pure Mark. |
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