On Sun, 30 Nov 2014, Benny Pedersen wrote:
On 30. nov. 2014 20.53.19 John Hardin <jhar...@impsec.org> 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
Huh?
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++/
endif
endif
--
John Hardin KA7OHZ http://www.impsec.org/~jhardin/
jhar...@impsec.org FALaholic #11174 pgpk -a jhar...@impsec.org
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