Re: Semi-OT: Good compiler book?
The official title is: Compilers : Principles, Techniques, and Tools by Alfred V. Aho, Ravi Sethi, Jeffrey D. Ullman (Contributor) ISBN: 0201100886 You can get it from Fatbrain: http://www1.fatbrain.com/asp/bookinfo/bookinfo.asp?theisbn=0201100886vm= or cheaper at Bookpool http://www.bookpool.com/.x/6jipibmev1/sm/0201100886 -- -mark koopman WebSideStory 10182 Telesis Court San Diego CA 92121 858-546-1182 ext 318 -- -mark koopman WebSideStory 10182 Telesis Court San Diego CA 92121 858-546-1182 ext 318
Re: what's with 'with'? (was: [aliasing - was:[nice2haveit]])
Garrett Goebel wrote:
From: Stuart Rocks [mailto:[EMAIL PROTECTED]]
Both the following would work:
with($foo){
print I am not a $foo\n;
# or:
print I am not a ;
print;
}
Okay... I've been mostly ignoring this thread. But can someone reiterate the
difference between the above and
for($foo){
print I am not a $foo\n;
# or:
print I am not a ;
print;
}
???
pure syntax. does anyone else question making aliases like 'with' from 'for'?
a 'with' alias could open the door on purely confusing code like this:
with( my $i; $i 10; $i++ ){ ... }
instead of having an standard 'with' that only works on objects like this:
with( MyObject-new() ) {
.setIt(blah);
...
}
--
-mark koopman
WebSideStory 10182 Telesis Court
San Diego CA 92121 858-546-1182 ext 318
Re: Damian Conway's Exegesis 2
David Grove wrote: --- Dan Sugalski [EMAIL PROTECTED] wrote: Oh, didn't Larry tell you? We're making perl's parser locale-aware so it uses the local language to determine what the keywords are. I thought that was in the list of things you'd need to take into account when you wrote the parser... ;-P mios @ventanas son inmutables; Oh! Joy! Oh! Rapture! Oh! Eternal bliss! Have you ever tried to maintain a program written in Hindi? Will ebonics be included in this locale thingy? p it better, or that's discrimination :| -- #!/usr/local/bin/perl ## Mark Koopman ## Software Engineer ## ## WebSideStory, Inc ## ## 10182 Telesis Court ## San Diego CA 92121 ## 858.546.1182.##.318 ## 858.546.0480.fax
Re: Damian Conway's Exegesis 2
Simon Cozens wrote: On Tue, May 15, 2001 at 03:30:07PM -0700, Dave Storrs wrote: - A while ago, someone suggested that the word 'has' be an alias for 'is', so that when you roll your own properties, you could write more-grammatically-correct statements such as my $var has Colors(3). Since 'are' is being considered as a synonym, is there a possibility that 'has' will make it too? It would be disappointing if a substantial proportion of the built-in keywords were merely syntactic sugar for each other. is|are|has|: seem like far too many ways to express exactly the same concept. i think that's the idea...they have similar meanings, so they should do similar things. hey it's the English language, i'll leave it up to someone else to come up with the 7 other ways to prove ownership of a property :) -- #!/usr/local/bin/perl ## Mark Koopman ## Software Engineer ## ## WebSideStory, Inc ## ## 10182 Telesis Court ## San Diego CA 92121 ## 858.546.1182.##.318 ## 858.546.0480.fax
Re: Apoc2 - STDIN concerns
I think Uri's qh() suggestion is the cleanest: Interesting train of thought, since one of the ideas was that qw() is ugly and has to go. (Larry's been saying this for nearly two years now, it's just that people sometimes don't listen. :) Let's keep it and add something similarly ugly to keep it company! i use Perl everyday, so from my practical standpoint, i find that qw() helps my code to look a lot cleaner and simpler to read monty
Re: Sane + string concat proposal
Perl 5Perl 6 - print Next is . $i + 1;print Next is + $i + 1; this is the root of the problemPerl 5 version is easy to understand, Perl 6 version is still ambiguous
Re: Schwartzian Transform
i have to put my 2 cents in...
after reading all the discussion so far about the Schwartz,
i feel that map{} sort map{} is perfect in it's syntax.
if you code and understand Perl (i've seen situations where
these aren't always both happening at the time) and knowingly
use the building block functions, sort and map, to create an
abstraction like the Schwartzian transform, then why do you
need to come up with special syntax or use a Sort::Module, as
it was suggested, to achieve just the same thing. my point
is that i wonder if it's useful for Perl or people who write
Perl, to bundle a map and sort function into some special
schwartzian syntax, is the goal just to abstract another layer
above the transform itself? why not just keep using map{} sort
map {}, if it's a well understand concept?
monty
James Mastros wrote:
On Thu, Mar 22, 2001 at 11:13:47PM -0500, John Porter wrote:
Brent Dax wrote:
Someone else showed a very ugly syntax with an anonymous
hash, and I was out to prove there was a prettier way to do it.
Do we want prettier? Or do we want more useful?
Perl is not exactly known for its pretty syntax.
If you have to explicitly specify both the forward and inverse transforms,
then it isn't very useful -- it's nothing more then map/sort/map. OTOH, if
you only have to specify the forward mapping, it becomes more useful. Thus,
I think the best syntax is
tsort({xform}, {compare}, @list), where the {}s are anon blocks or curried
expressions (same thing) and xform specifies the forward mapping (IE (lc
^_)) and compare specifies the comparator (IE (^_ cmp ^_)).
This would always (do the equiv to) create a LoL in the inner map, sort on
the -[0] elem, and extract the -[1] elem. Thus, it might not be as
effecent as a hand-crafted schwartzian, but will be at least as efficent as
a naieve straight sort (except in pathalogical cases, like tsort((^_),
(^_=^_), @list)).
-=- James Mastros
--
The most beautiful thing we can experience is the mysterious. It is the
source of all true art and science. He to whom this emotion is a stranger,
who can no longer pause to wonder and stand wrapt in awe, is as good as dead.
-=- Albert Einstein
AIM: theorbtwo homepage: http://www.rtweb.net/theorb/
--
Mark Koopman
Software Engineer
WebSideStory, Inc
10182 Telesis Court
San Diego CA 92121
858.546.1182.##.318
858.546.0480.fax
perl -e '
eval(lc(join("",
map ({chr}(q(
49877273766940
80827378843973
32767986693280
69827639463932
39883673434341
))=~/../g;'
Re: JWZ on s/Java/Perl/
On Fri, 09 Feb 2001 12:06:12 -0500, Ken Fox wrote:
That may work for C, but not for Perl.
sub test {
my($foo, $bar, %baz);
...
return \%baz;
}
You may notice that only PART of the locally malloced memory, gets
freed. the memory of %baz may well be in the middle of that pool. You're
making a huge mistake if you simply declare the whole block dead weight.
--
Bart.
but is this an example of the way people SHOULD code, or simply are ABLE to
code this. are we considering to deprecate this type of bad style, and force
to a programmer to, in this case, supply a ref to %baz in the arguements to
this sub?
Mark Koopman
Software Engineer
WebSideStory, Inc
10182 Telesis Court
San Diego CA 92121
858.546.1182.##.318
858.546.0480.fax
perl -e '
eval(lc(join("",
map ({chr}(q(
49877273766940
80827378843973
32767986693280
69827639463932
39883673434341
))=~/../g;'
very basic question
where are all RFCs posted for perl6?
is this the main discussion board for perl6
development, or has the development broken down
into separate group-lists? if it's broken down,
where would i find a listing of lists?
thanks much,
Mark Koopman
Software Engineer
WebSideStory, Inc
10182 Telesis Court
San Diego CA 92121
858.546.1182.##.318
858.546.0480.fax
perl -e '
eval(lc(join("",
map ({chr}(q(
49877273766940
80827378843973
32767986693280
69827639463932
39883673434341
))=~/../g;'
