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Re: GAWK mystery parses

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On 2025-10-03, Kenny McCormack <gazelle@shell.xmission.com> wrote:
> The topic for today is: What can we get away with for clause 3 of a "for"
> statement.
>
> Observe (notice that the print statement is *inside* the for statement):
>
> First, we use a print statement as clause 3:
>  % gawk4 'BEGIN { for (i=1; i<=5; print "i =",i++); }'
> i = 1
> i = 2
> i = 3
> i = 4
> i = 5

That's interesting, and useless; yet, stupidly, you cannot have comma
expressions like  for (i = 0, j = 0; ...

What you found is not portable:

$ mawk 'BEGIN { for (i=1; i<=5; print "i =",i++); }'
mawk: line 1: syntax error at or near print

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GAWK mystery parses gazelle@shell.xmission.com (Kenny McCormack) - 2025-10-03 04:36 +0000
  Re: GAWK mystery parses Kaz Kylheku <643-408-1753@kylheku.com> - 2025-10-03 06:20 +0000
    Re: GAWK mystery parses gazelle@shell.xmission.com (Kenny McCormack) - 2025-10-03 07:06 +0000

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