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From John Hardin <>
Subject Re: Argument "perl_version" isn't numeric
Date Sun, 30 Nov 2014 20:51:35 GMT
On Sun, 30 Nov 2014, Benny Pedersen wrote:

> On 30. nov. 2014 20.53.19 John Hardin <> wrote:
>>  Sadly that doesn't work. The else branch of a conditional still gets
>>  partially parsed, so the perl_version type warning is still emitted even
>>  if it is inside a conditional that evaluates to false.
>>  Try this:
>>  if 0 > 0
> Psudo if trunc


>>     if fnord > 0
> Psudo fnord would exists in trunc

This has nothing to do with trunk code, if that's what you're suggesting. 
I'm illustrating the behavior of parsing vs. conditionals with something 
that will generate a warning simliar to what we're seeing with 
perl_version. Did you actually *try* what I suggested?

>>       meta SYN_ERROR
>>     endif
>>  endif
>>  SA won't generate a warning about the syntax of the SYN_ERROR rule, but it
>>  will emit a warning about fnord not being numeric.
> Not if trunc installed, hopefully,

I tested the above against trunk before recommending you try it.

> is it a svn tag check in sa ?

No. "fnord" is just a token that I know will not match anything in 
conditional parsing, even in trunk. It's a guaranteed parse warning. 
Sorry, I meant to use "fnord" literally to illustrate the problem, not as 
a generic placeholder.

> Hopefully it would be resolved in future sa verions to not break any admin 
> legs :)

It's possible that the parser could be revised to not parse false 
conditional branches as much as it is, but that would *not* correct this 
behavior in existing releases so doing this won't succeed in preventing 
these warnings in older SA when a new release that supports perl_version 
goes out:

   if release > 3.004001
     if perl_version >= 5.010000
       body NON_588_COMPATIBLE_RE_SYNTAX /\w++/

  John Hardin KA7OHZ              FALaholic #11174     pgpk -a
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