So I think it already counts past lexems and thus can determine the balance of "()", '[]' and "{}"
It can't currently.
If all the following conditions are true
All of the following satisfy your criteria, are valid and normal perl code, and would get a semicolon incorrectly inserted based on your criteria: 
use softsemicolon;

$x = $a
   + $b;

$x = 1
    if $condition;

$x = 1 unless  $condition1
           && $condition2;

[download]
The warning issued should be something like
I didn't ask what the text of the warning should be, I asked how the parser can determine when the warning should be issued.
the scheme proposed for recursive descent parsers
But perl uses an LR(1) parser, not a recursive descent parser.

Dave.

In reply to Re^11: What esteemed monks think about changes necessary/desirable in Perl 7 outside of OO staff by dave_the_m
in thread What esteemed monks think about changes necessary/desirable in Perl 7 outside of OO staff by likbez

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