in reply to A guide to coding Perl

One thing I like to avoid is excessive brace nesting. Mostly because I find it hard to make sure I've got the end braces right. Yes smart editors help, as does indentation, but I like the perl "statement unless condition" syntax a lot in my loops.

What do I mean?

well I often see code like 

while (cond1) {
  if (cond2) {
    statement;
    if (cond3) {
      statement;
      statement;
      for (range) {
        something;
        something;
        something;
      }
    }
  }
  else {
    last;
  }
}

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What I prefer to see/write is 
while (cond1) {
  last unless (cond2);
  statement
  next unless (cond3);
  statement
  statement
  for (range) {
    something
    something
    something
  }
}

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Re: Re: A guide to coding Perl
by rir (Vicar) on Dec 12, 2002 at 02:57 UTC
    Yes, yes, yes. Fallthrough is concise, natural and seemly.

    To my knowledge, I've only met two people, Pascal lovers both, who could not abide fallthrough. In their code, an if statement that could return was always followed by an else clause that contained the rest of the routine.

    To be fair: a couple more spaces in your indents and your first version would read much better.

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