I have settled on reducing horizontal indentation (code creeping across the screen) by using more vertical indentation.
if (
condition1 or
condition2 or
condition3
)
{
# do something
}
elsif (
condition4 or
condition5
)
{
# do something else
}
I like the top down feel this approach gives me.
As has been mentioned already, if the code does start creeping across more than, say, 3 'levels of indentation' it almost certainly means it'd be better off being rewritten. I can't hold that many levels of a process/sub processes in my head at a time.
I often take a similar approach to functions/objects. An extreme example:
open(
my $fh,
'<',
'text.txt',
) or die "died";
Down is better than across :-)
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