Re: Re (3): Thoughts on naming loop LABEL: (TMTOWTDI, why label loops?)

Do you label all such blocks or loops to make it clear that you are short circuiting the loop when you have a next, last, or redo?

LINE: while(<>) {
  # ...
  next LINE if ...
  # ...
}

SEARCH: for (@list) {
  # ...
  last SEARCH if ...
}
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Do you do so only in long blocks? Complicated blocks? Do you have a consistent style for when and how to label loops or is it more of a "whatever seems good at the time" approach? I ask not to be difficult but because in a single non-nested loop I just don't see any additional clarity being added by loop labels. If you see a benefit can you describe the situations where you find it beneficial versus those where it is ok to not label the loop?

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Re (5): Thoughts on naming loop LABEL: (TMTOWTDI, why label loops?) by VSarkiss (Monsignor) on May 02, 2002 at 17:26 UTC
Hmm, good question. I don't think I have any specific rules, but I seem to do it based on some notion of "distance": if the `next` or `last` is "a long way" from the top or bottom of the loop, I'll put in a label. Ultimately, it's a question of "if it looks better with the label, add it", but I can't quantify what I mean by "better". On the other hand, I don't think I've ever used a label with `redo` (I don't use it very often 'cause I find it confusing. ;-)	[reply] [d/l] [select]

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Re (5): Thoughts on naming loop LABEL: (TMTOWTDI, why label loops?)
by VSarkiss (Monsignor) on May 02, 2002 at 17:26 UTC

Hmm, good question. I don't think I have any specific rules, but I seem to do it based on some notion of "distance": if the next or last is "a long way" from the top or bottom of the loop, I'll put in a label. Ultimately, it's a question of "if it looks better with the label, add it", but I can't quantify what I mean by "better".

On the other hand, I don't think I've ever used a label with redo (I don't use it very often 'cause I find it confusing. ;-)

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