On 11/1/2011 11:44 PM, Karl Glazebrook wrote:
Hi Chris
Just tried this quickly - seems to work great!
I will make it my default and see how it goes in my next debugging frenzy - was
there many changes from the original perl5db.pl?
Two lines: one to require PDL::NiceSlice and the other to
run the perldlpp() converter on the command line before
the interactive eval takes place. The hard part is grokking
enough of the debugger to see what to do.
One comment: just like with normal perl5db.pl the 'l' commands shows the code
AFTER source filtering. But now we have Niceslice working it would be nice to
have this PRE source filtering. Are there any hooks in the debugger for that?
This definitely should be possible but much trickier to
get right. Would be nice to have once the new, improved
NiceSlice filtering is done. The difficulty is making
sure not to break the debugger in the process. I feel
confident that the 2 line change above doesn't. :-)
Very happy to have this! 'pdl -d' would be a nice touch.
Agreed.
BTW, is there some reason why your email lines don't
end? The paragraphs seem to be one long line in my mail
reader (when I reply) as well as in the perldl and pdl-porters
list archives. It makes it difficult to reply to posts
by point since I can only read the first 80-ish characters
of the paragraph in the reply. Some other posters show the
symptom as well. Take a look at the perldl or pdl-porters
archives to see what I mean. Fixes welcome...
Cheers,
Chris
On 21/10/2011, at 6:10 AM, Chris Marshall wrote:
[ Resending announcement since I missed a cc to the list ]
Karl et. al.,
I just implemented a PDLdb.pl debugger with support
for PDL::NiceSlice syntax. You can get it from the PDL
git repo and use it by placing it in your @INC path
somewhere and by setting the PERL5DB environment
variable to 'BEGIN { require "PDLdb.pl" }'
Let me know how it works and if it seems stable enough
we could consider adding it to the distribution. Maybe
even with something clever like 'pdl -d' calling it under
the hood...
Cheers,
Chris
On Sat, Oct 15, 2011 at 6:55 PM, chm<[email protected]> wrote:
On 10/15/2011 5:58 PM, Karl Glazebrook wrote:
On 15/10/2011, at 12:47 AM, Chris Marshall wrote:
Not yet. There are only two options that I know of:
(1) use the original throw-away tmp syntax for slice
assignments: E.g., ( my $tmp = $a(:) ) .= $b
(2) use perl-5.15 which appears to have replaced the
lvalue failure by a warning. I don't have that perl
available to test so I cannot verify.
Hi Chris
I am not sure I understand your ref to lvalues?
Sorry, I crossed wires with the lvalue subs problem
with the debugger. It would be nice to use niceslice
constructs from the perl debugger command line.
Taking a look at the DB module, it seems that
it might be possible to add niceslice processing
to the evalcode feature (once it is working cleanly
for our own evals).
--Chris
For me it does not work even for rvalues
e.g.
DB<4> $r = random(10,10)
DB<5> p $r(0:3,0:3)
syntax error at (eval 52)[/System/Library/Perl/5.10/perl5db.pl:638] line
2, near "$r("
DB<6> p $r->slice('0:3,0:3')
[
[ 0.43491887 0.9474565 0.41647159 0.79907819]
[0.0043885932 0.043438065 0.86013387 0.21898749]
[ 0.13279017 0.44450159 0.77473655 0.10607898]
[ 0.26784251 0.77686852 0.58402126 0.45321226]
]
BTW how come you have no profile on
http://sourceforge.net/apps/mediawiki/pdl/index.php?title=Team
?
You are the main contribution!
Karl
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