Programing Challenge: Constructing a Tree Given Its Edges.
Show you are the boss.
http://xahlee.info/perl-python/python_construct_tree_from_edge.html
here's plain text.
── ── ── ── ──
Problem: given a list of edges of a tree: [child, parent], construct the
On Apr 29, 7:43 pm, Jason Earl wrote:
> On Sat, Apr 28 2012, Steven D'Aprano wrote:
> > On Sat, 28 Apr 2012 14:55:42 -0700, Xah Lee wrote:
>
> >> Learn Technical Writing from Unix Man in 10 Days
>
> >> Quote from man apt-get:
>
> >> remove
Learn Technical Writing from Unix Man in 10 Days
Quote from man apt-get:
remove
remove is identical to install except that packages are
removed
instead of installed.
Translation:
kicking
kicking is identical to kissing except that receiver is kicked
inste
ch of Fuckfaces. (and
Fuck Pythoners. Python fucking idiots.)
O, don't forget,
〈Programing: What are OOP's Jargons and Complexities (Object Oriented
Program as Functional Program)〉
http://xahlee.org/Periodic_dosage_dir/t2/oop.html
please you peruse of it.
your servant, humbly
Understand HTML5?〉
http://xahlee.org/UnixResource_dir/writ/html5_vs_intelligence.html
Xah
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too. (python code welcome too.)
Xah
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Xah Lee wrote:
« http://xahlee.org/comp/fuck_python.html »
David Canzi wrote
«When Microsoft created MS-DOS, they decided to use '\' as the
separator in file names. Â This was at a time when several previously
existing interactive operating systems were using '/' as the
On Apr 8, 4:34 am, Steven D'Aprano wrote:
> On Sun, 08 Apr 2012 04:11:20 -0700, Xah Lee wrote:
>
> [...]
>
> I have read Xah Lee's post so that you don't have to.
>
> Shorter Xah Lee:
>
> "I don't know Python very well, and rather than adm
hi guys,
sorry am feeling a bit prolifit lately.
today's show, is: 〈Fuck Python〉
http://xahlee.org/comp/fuck_python.html
Fuck Python
By Xah Lee, 2012-04-08
fuck Python.
just fucking spend 2 hours and still going.
here's the short story.
so
format follows, as a amenity for tech
geekers.
---
World Multiconference on Systemics, Cybernetics and Informatics ???
Xah Lee, 2010-04-04
Starting in 2004, i regularly receive email asking me to participate a
conference, called “World Multiconference
On Apr 3, 8:22 am, Rainer Weikusat wrote:
> Xah Lee writes:
>
> [...]
>
> > For example, “Is mathematics science or art?”, is the same type of
> > question that has been broached by dabblers now and then.
>
http://en.wikipedia.org/wiki/Liberal_arts
this is the best
=_gZK0tW8EhQ
i just started watching, havn't done yet.
(thx jcs's blog for the news)
PS posted to python and perl forums too, because i think might be
interesting for lang aficionados . Reply to just your community
please.
Xah
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to know.
⢠Theory vs Practice
⢠Jargons of IT Industry
⢠The Lambda Logo Tour
⢠English Lawers
PS don't forget to checkout: ãFrom Why Not Ruby to Fuck Python, Hello
Rubyã @ http://xahlee.org/UnixResource_dir/writ/why_not_Ruby.html
yours humbly,
Xah
--
http://mail.pyth
r
key with 8th bit. keyX doesn't have a ID, but you can make one by
finding the number at the place you found the key C. Key C is
actually
optional, but when inner key and keyX's number matches, it changes
the
nature of the lock. This is when you need to turn on keyMode …
Xah
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oject, if someone actually use a
parallel-algorithm-aware language to work on this problem, and report
on the break-point of file-size of parallel-algorithm vs sequential-
algorithm.
Anyone would try it? Perhaps in Fortress, Erlang, Ease, Alice, X10, or
other? Is the Clojure parallel aware?
Xah
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On Mar 5, 9:26 pm, Tim Roberts wrote:
> Xah Lee wrote:
>
> >some additional info i thought is relevant.
>
> >are int, float, long, double, side-effects of computer engineering?
>
> Of course they are. Such concepts violate the purity of a computer
> language
some additional info i thought is relevant.
are int, float, long, double, side-effects of computer engineering?
Xah Lee wrote:
«… One easy way to measure it is whether a programer can read and
understand a program without having to delve into its idiosyncrasies.
…»
Chris Angelico wrote
n when 2 operators are adjacent e.g. 「3 △ 6 ▲ 5 」?
do you happen to know some site that shows the relevant page i can
have a look?
thanks.
Xah
On Mar 1, 3:00 am, Kiuhnm wrote:
> On 3/1/2012 1:02, Xah Lee wrote:
>
> > i missed a point in my original post. That is, when the same
Xah Lee wrote:
«… One easy way to measure it is whether a programer can read and
understand a program without having to delve into its idiosyncrasies.
…»
Chris Angelico wrote:
«Neither the behavior of ints nor the behavior of IEEE floating point
is a "quirk" or an "idiosyncracy
ization they provide is microscopic and temporary.
best is really floor(x/y).
idiomatic programing, is a bad thing. It was spread by perl, of
course, in the 1990s. Idiomatic lang, i.e. lang with huge number of
bizarre idioms, such as perl, is the worst.
Xah
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ive me sir, but i haven't been at python for a while. :)
i was, actually, refreshing myself of what little polyglot skills i
have.
Xah
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fun example.
in-place algorithm for reversing a list in Perl, Python, Lisp
http://xahlee.org/comp/in-place_algorithm.html
plain text follows
What's “In-place Algorithm”?
Xah Lee, 2012-02-29
This page tells you what's “In-place algorithm”, usi
y bad written. Becha ass!
Xah
On Feb 29, 4:08 am, Kiuhnm wrote:
> On 2/29/2012 9:09, Xah Lee wrote:
>
>
> > New Science Discovery: Perl Idiots Remain Idiots After A Decade!
>
> > A excerpt from the new book 〈Modern Perl〉, just published, chapter 4
> > on “Operator
New Science Discovery: Perl Idiots Remain Idiots After A Decade!
A excerpt from the new book 〈Modern Perl〉, just published, chapter 4
on “Operators”. Quote:
«The associativity of an operator governs whether it evaluates from
left to right or right to left. Addition is left associative, such
that
On Dec 5, 4:31 am, Tim Bradshaw wrote:
> On 2011-12-05 11:51:11 +0000, Xah Lee said:
>
> > python has more readible syntax, more modern computer language
> > concepts, and more robust libraries. These qualities in turn made it
> > popular.
>
> Yet you still post h
lisp, etc. I'll post a emacs lisp
solution in a couple of days.
Xah
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http://mail.python.org/mailman/listinfo/python-list
iteral, not regex)? because i thought implementing replacement for
string should be much simpler and faster, because buffers comes with
it a whole structure such as “point”, text properties, buffer names,
buffier modifier, etc.
Xah
On Sep 28, 5:28 am, Xah Lee wrote:
> On Sep 28, 3:57 am, mer...
On Sep 28, 3:57 am, mer...@stonehenge.com (Randal L. Schwartz) wrote:
> >>>>> "Xah" == Xah Lee writes:
>
> Xah> curious question.
> Xah> suppose you have 300 different strings and they need all be replaced
> Xah> to say "aaa".
>
>
med entities to unicode char.
Xah
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On Jul 31, 11:38 am, gavino wrote:
> On Jul 13, 1:04 pm, ccc31807 wrote:
>
>
>
>
>
>
>
>
>
> > On Jul 12, 7:54 am, Xah Lee wrote:
>
> > > maybe this will be of interest.
>
> > > 〈What Programing Language Are t
On Jul 21, 9:43 am, pyt...@bdurham.com wrote:
> Xah,
>
> 1. Is the following string considered legal?
>
> [ { ( ] ) }
>
> Note: Each type of brace opens and closes in the proper sequence. But
> inter-brace opening and closing does not make sense.
nu!
> Or must a closi
suggestion of ideas.
i haven't done extensive testing on my own code neither.
I'll revisit maybe in a few days.
Feel free to grab my report and make it nice. If you would like to fix
your code, feel free to email.
Xah
On Jul 21, 7:26 am, Ian Kelly wrote:
> On Thu, Jul 21
ks for the code.
are you willing to make it complete and standalone? i.e. i can run it
like this:
perl Rouslan_Korneychuk.pl dirPath
and it prints any file that has mismatched pair and line/column number
or the char position?
i'd do it myself but so far i tried 5 codes, 3 fixes, all failed. Not
a complain, but it does take time to gather the code, of different
langs by different people, properly document their authors and
original source urls, etc, and test it out on my envirenment. All
together in the past 3 days i spent perhaps a total of 4 hours running
several code and writing back etc and so far not one really worked.
i know perl well, but your code is a bit out of the ordinary ☺. If
past days have been good experience, i might dive in and study for
fun.
Xah
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On Jul 19, 11:07 am, Thomas Jollans wrote:
> On 19/07/11 18:54, Xah Lee wrote:
>
>
>
>
>
>
>
>
>
> > On Sunday, July 17, 2011 2:48:42 AM UTC-7, Raymond Hettinger wrote:
> >> On Jul 17, 12:47 am, Xah Lee wrote:
> >>> i hope you
s
py3 validate_brackets_Thomas_Jollans_2.py
c:/Users/h3/web/xxst/find_elisp/validate matching brackets/xxdir
\xx.txt
h3@H3-HP 2011-07-21 05:21:59 ~/web/xxst/find_elisp/validate matching
brackets
py3 --version
Python 3.2.1
h3@H3-HP 2011-07-21 05:27:03 ~/web/xxst/find_elisp/validate matching
bracke
pt to Validate Matching Brackets
Xah Lee, 2011-07-19
This page shows you how to write a elisp script that checks thousands
of files for mismatched brackets.
The Problem
Summary
I h
mismatched curly quotes.
> > (e.g.http://xahlee.org/p/time_machine/tm-ch04.html )
>
> > LOL Billy.
>
> > Xah
>
> I suspect its due to the file mode being opened with 'rb' mode. Also,
> the diction of characters at the top, the closing token is the key,
> wh
e naive. I hope to see and learn from your
> > solution too.
>
> > i hope you'll participate. Just post solution here. Thanks.
>
> I thought I'd have some fun with multi-processing:
>
> https://gist.github.com/1087682
hi Thomas. I ran the program, all cpu went max (i have a quad), but
after i think 3 minutes nothing happens, so i killed it.
is there something special one should know to run the script?
I'm using Python 3.2.1 on Windows 7.
Xah
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reported = True
> else:
> stack.append(c)
>
> print '%s: %s' % (name, ("good" if len(stack) == 1 else "bad
> '%s' at %s:%s" % first_bad))
Thanks for the fix.
Though, it seems still wrong.
On the file http://xahlee.org/p/time_machine/tm-ch04.html
there is a mismatched curly double quote at 28319.
the script reports:
tm-ch04.html: bad ')' at 68:2
that doesn't seems right. Line 68 is empty. There's no opening or
closing round bracket anywhere close. Nearest are lines 11 and 127.
Maybe Billy Mays's algorithm is wrong.
Xah (fairly discouraged now, after running 3 python scripts all
failed)
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: %s' % name
>
> --
> Bill
as Ian Kelly mentioned, your script fail because it doesn't report the
position or line/column number of first mismatched bracket. This is
rather significant part to this small problem. Avoiding unicode also
lessen the value of this exercise, because han
On Sunday, July 17, 2011 2:48:42 AM UTC-7, Raymond Hettinger wrote:
> On Jul 17, 12:47 am, Xah Lee wrote:
> > i hope you'll participate. Just post solution here. Thanks.
>
> http://pastebin.com/7hU20NNL
just installed py3.
there seems to be a bug.
in this file
http://xahle
On Jul 18, 7:07 pm, Billy Mays wrote:
> On 7/18/2011 7:56 PM, Steven D'Aprano wrote:
>
>
>
>
>
>
>
>
>
> > Billy Mays wrote:
>
> >> On 07/17/2011 03:47 AM, Xah Lee wrote:
> >>> 2011-07-16
>
> >> I gave it a shot. It doe
On Jul 17, 12:47 am, Xah Lee wrote:
> 2011-07-16
>
> folks, this one will be interesting one.
>
> the problem is to write a script that can check a dir of text files
> (and all subdirs) and reports if a file has any mismatched matching
> brackets.
> …
Ok, here's
find this a interesting “challenge”. This is a parsing
problem. I haven't studied parsers except some Wikipedia reading, so
my solution will probably be naive. I hope to see and learn from your
solution too.
i hope you'll participate. Just post solution here. Thanks.
Xah
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osoft sites... are they in C/C++ and or dotnet?
Xah
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2011-07-11
On Jul 11, 6:51 am, jvt wrote:
> I might as well toss my two cents in here. Xah, I don't believe that
> the functional programming idiom demands that we construct our entire
> program out of compositions and other combinators without ever naming
> anything. That
On Jul 5, 12:17 pm, Ian Kelly wrote:
> On Mon, Jul 4, 2011 at 12:36 AM, Xah Lee wrote:
> > So, a solution by regex is out.
>
> Actually, none of the complications you listed appear to exclude
> regexes. Here's a possible (untested) solution:
>
>
>
On Jul 5, 12:17 pm, Ian Kelly wrote:
> On Mon, Jul 4, 2011 at 12:36 AM, Xah Lee wrote:
> > So, a solution by regex is out.
>
> Actually, none of the complications you listed appear to exclude
> regexes. Here's a possible (untested) solution:
>
>
>
On Jul 4, 12:13 pm, "S.Mandl" wrote:
> Nice. I guess that XSLT would be another (the official) approach for
> such a task.
> Is there an XSLT-engine for Emacs?
>
> -- Stefan
haven't used XSLT, and don't know if there's one in emacs...
it'd be nic
llows.
--
Emacs Lisp: Processing HTML: Transform Tags to HTML5 “figure” and
“figcaption” Tags
Xah Lee, 2011-07-03
Another triumph of using elisp for text processing over perl/python.
The Problem
--
Summary
I want batch tran
this will be of interest to those bleeding-edge pythoners.
“what… is the airspeed velocity of an unladen swallow?”
xahlee.org/funny/unladen_swallow.html
Xah
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On Jun 18, 4:06 am, Dotan Cohen wrote:
> On Sat, Jun 18, 2011 at 01:09, Xah Lee wrote:
> > thanks. didn't know about Ducky keyboard. Looks good. Also nice to
> > hear your experience about Truly Ergonomic keyboard.
>
> I like it, see my first-hour review
> here:htt
On Jun 17, 2:26 pm, Dotan Cohen wrote:
> On Fri, Jun 17, 2011 at 20:43, Xah Lee wrote:
> > u r aware that there are already tens of layouts, each created by
> > programer, thinking that they can create the best layout?
>
> Yes. Mine is better :)
> Had Stallman not heard
th.
there's many ways we can cookup tests right away to see. e.g. try to
squeeze a rubber ball with 4th and thumb. Repeat with pink + thumb.
Or, reverse exercise by stretching a rubber band wrapped on the 2
fingers of interest. You can easy see that pinky isn't stronger.
Xah
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so there are several
sites all trying to do it. Talk is cheap, the hardest part is actually
to get money to finance and manufacture it. The latest one, which i
deem good, is Truely Ergonomic keyboard. It sells for $200 and is in
pre-order only now.
Xah
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for some reason, was unable to post the previous message. (but can
post others) So, the message is rot13'd and it works. Not sure what's
up with Google groups. (this happened a few years back once.
Apparantly, the message content might have something to do with it
because rot13 clearly works. Yet,
Ba Wha 13, 7:23 nz, Ehfgbz Zbql 〔ehfgbzcz...@tznvy.pbz〕 jebgr:
│ Qibenx -- yvxr djregl naq nal bgure xrlobneq ynlbhg -- nffhzrf gur
│ pbzchgre vf n glcrjevgre.
│ Guvf zrnaf va rssrpg ng yrnfg gjb pbafgenvagf, arprffnel sbe gur
│ glcrjevgre ohg abg sbe gur pbzchgre:
│
│ n. Gur glcvfg pna glcr bayl
st of the time being
thinking,
│ planning, debugging, communicating with customers or managers,
reading
│ documentation, testing, committing code, sketching data schemas on
the
│ whiteboard ... to say nothing of the dreaded strategy meetings.
you can find the study on my site. URL in the first post o
also worked as data entry
clerk for a couple of years. Am a dvorak touch typist since 1994. (and
emacs since 1997) However, i never learned touch type the numbers on
the main section till i think ~2005. Since about 2008, the numerical
keypad is used as extra function keys.
Xah
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n be done in less than 20 minutes if you just type
continuously.
If your typing doesn't come anywhere close to a data-entry clerk, then
any layout “more efficient” than Dvorak is practically meaningless.
Xah
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Dear lisp comrades, it's Friday!
Dear Xah, your writing is:
• Full of bad grammar. River of Hiccups.
• Stilted. Chocked under useless structure and logic.
• WRONG — Filled with uncouth advices.
• Needlessly insulting. You have problems.
• Simply stinks. Wort
On May 26, 4:20 am, Thorsten Kampe wrote:
> Did your mom tell you to "recursively clean up your room"?.
that had me L O L!
i think i'll quote in my unix hating blogs sometimes, if you don't
mind. ☺
Xah
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nlink" instead of "delete"? Or "directory"
> instead of "folder", pointing out that "directory" is the correct term
> because a directory is just a listing and does not "contain" the actual
> files. Of course these implementation details will never matter to
> anyone except under the rarest conditions.
>
> Thorsten
well said.
half of posts in this thread are from idiots. just incredible, but
again, its newsgroups ... what am i thinking ...
Xah
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; I'm one of the 'people'. You say exposed to, I say bothered/bored with.
>
> I have nothing against the use of a proper, precise term. And that word can
> be a complex one with many, many sylables (seems to add value, somehow).
>
> But I'm not an academic, so I don't admire the pedantic use of terms that
> need to be explained to 'lay' people. Especially if there is a widespread,
> usually shorter and much simpler one for it. A pointless effort if
> pointless, even when comming from a physicist. :-)
very well said, Rikishi42.
this one is probably the most intelligent post in this thread.
Xah
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On May 23, 9:28 pm, Chris Angelico wrote:
> On Tue, May 24, 2011 at 2:20 PM, Xah Lee wrote:
> > why don't you file a bug report? In GNU Emacs 23.2, it's under the
> > Help menu. I suppose it's the same in other emacs distro.
>
> Because I do not consider its b
On May 22, 4:32 pm, Chris Angelico wrote:
> On Mon, May 23, 2011 at 9:17 AM, Xah Lee wrote:
> > the context is this: In emacs directory manager (aka dired), when you
> > call dired-do-delete on a directory, emacs prompts, this way:
> > “Recursive delete of xx? (y or n)”
>
On May 22, 3:46 pm, Chris Angelico wrote:
> On Mon, May 23, 2011 at 6:22 AM, Xah Lee wrote:
> > Xah wrote:
> > «In the emacs case: “Recursive delete of xx? (y or n) ”, what could it
> > possibly mean by the word “recursive” there? Like, it might delete the
> > directo
nism). Realizing the algorithmic property and parallel-
execution issues of linked list is only recent years.
Xah
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Xah wrote:
«In the emacs case: “Recursive delete of xx? (y or n) ”, what could it
possibly mean by the word “recursive” there? Like, it might delete the
directory but not delete all files in it?
»
Jonathan de Boyne Pollard wrote:
> It might *try* to delete the directory but not any of
might be of interest.
〈English Idiom in Unix: Directory Recursively〉
http://xahlee.org/comp/idiom_directory_recursively.html
--
English Idiom in Unix: Directory Recursively
Xah Lee, 2011-05-17
Today, let's discuss something in the category of lingu
d it daily for about a month before I switched to APLX - aka micro
> APL.. and as I had zero problems.. So, I suspect it is 100% A+
> compatible.
>
> Initially, I thought of writing a python wrapper that would handle
> conversion from Unicode to A+'s peculiar brand of latin1 and back (among
> other things) but never had the time.
hi Chris,
i created a page dedicated to creating math symbol layouts for
different langs.
I linked to your post.
I wonder if you would let me mirror your X code on my site? Or, if you
place it on somewhere more permanent or dedicate page such as git, i'd
link to that. Thanks.
Xah
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html
i'd be interested to know what Dotan Cohen use too.
i tried the swapping number row with symbols a few years back. didn't
like it so much because numbers are frequently used as well,
especially when you need to enter a series of numbers. e.g. heavy
math, or dates 2010-02-28. One can
i think for special purposes
OSes, they have quite a lot ... from Mitsubishi, NEC, etc... in their
huge robotics industry among others. (again, this is all second hand
knowledge)
... i recall having read non-english comp lang that appeared
recently...
Xah Lee
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On 2011-02-16, Xah Lee wrote:
│ Vast majority of computer languages use ASCII as its character set.
│ This means, it jams multitude of operators into about 20 symbols.
│ Often, a symbol has multiple meanings depending on contex.
On 2011-02-17, rantingrick wrote:
…
On 2011-02-17, Cthun wrote
might be interesting.
〈Problems of Symbol Congestion in Computer Languages (ASCII Jam;
Unicode; Fortress)〉
http://xahlee.org/comp/comp_lang_unicode.html
--
Problems of Symbol Congestion in Computer Languages (ASCII Jam;
Unicode; Fortress)
Xah Lee
0 i ported our ecommerce web app from Solaris to it. Am not
exactly thrilled. At the time, i vaguely recall, the HP sales guys
come to us and tells us they have this heart-beat technology ...
Xah
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On Feb 8, 9:32 am, Icarus Sparry wrote:
> On Tue, 08 Feb 2011 13:51:54 +0100, Petter Gustad wrote:
> > Xah Lee writes:
>
> >> problem with find xargs is that they spawn grep for each file, which
> >> becomes too slow to be usable.
>
> > find . -maxdepth
might be interesting.
〈Guy Steele on Parallel Programing〉
http://xahlee.org/comp/Guy_Steele_parallel_computing.html
--
Guy Steele on Parallel Programing
Xah Lee, 2011-02-05
A fascinating talk by the well respected computer scientist Guy
Steele
7;s Point Of View.
〈Avatar and District 9 Movie Review〉
http://xahlee.org/Periodic_dosage_dir/skina/avatar.html
------
Avatar and District 9 Movie Review
Xah Lee, 2010-01-07
--
Avatar
Went to watch the movie Avatar (2009 fil
he utterly
idiotic Perl & unix & mysql world. (See: The Unix Pestilence ◇ Xah
Lee's Computing Experience (Impression Of Lisp from Mathematica).)
Well, dead-end just as Emacs Lisp i'm spending my nights with in the
past 4 years. LOL. And on that note, same thing can be said with
has
Richard Gruet's quick ref:
http://rgruet.free.fr/PQR26/PQR2.6.html
on the python doc, afaik people complains all the time, and i know at
least 3 times in different years people have tried to bring up
projects to fix it, all shot down with spit badly by python priests,
of course.
just 2 days a
a opinion piece.
〈The Idiocy of Computer Language Docs〉
http://xahlee.org/comp/idiocy_of_comp_lang.html
--
The Idiocy of Computer Language Docs
Xah Lee, 2011-01-03
Worked with Mathematica for a whole day yesterday, after about 10
years hiatus
.php
there are 12 teams using OCaml. See:
http://ai-contest.com/rankings.php
(click on the lang to see all teams using that lang)
Xah
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/Planet-Wars-Post-Mortem.html
(not sure if this has been mentioned here but quick search didn't find
it)
Xah ∑ http://xahlee.org/ ☄
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On Oct 27, 5:46 pm, rantingrick wrote:
> On Oct 26, 4:31 am, Xah Lee wrote:
>
> > recently wrote a article based on a debate here. (can't find the
> > original thread on Google at the moment)
>
> Hey all you numbskulls who are contributing the annoying off-topic
&g
n JVM? guess they are UNREAL. lol
btw, who cross posted this thread to python? i call troll!
Xah
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://xahlee.org/comp/land_of_lisp.html
Conrad is certainly a fervent lisp lover. ( as is Peter Seibel
http://www.gigamonkeys.com/book/ ) Conrad is also a comics artist. The
landoflisp is going all over on twitter yesterday and apparantly many
already ordered it. Hope he does very well.
Xah
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pure functional lang (e.g. haskell), i think lc is pretty bad.
here's the plain text version of my essay
What's List Comprehension and Why is it Harmful?
Xah Lee, 2010-10-14
This page explains what is List Comprehension, with examples from
several lang
On Oct 20, 4:52 am, Marc Mientki wrote:
> Am 20.10.2010 13:14, schrieb Xah Lee:
>
> > See also:
>
> > • 〈The Importance of Terminology's Quality In Computer Languages〉
> >http://xahlee.org/UnixResource_dir/writ/naming_functions.html
>
> > where i gave some
e.org/UnixResource_dir/writ/naming_functions.html
where i gave some examples of the naming.
Xah ∑ http://xahlee.org/ ☄
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On Sep 25, 9:05 pm, Xah Lee wrote:
> here's a interesting toy list processing problem.
>
> I have a list of lists, where each sublist is labelled by
> a number. I need to collect together the contents of all sublists
> sharing
> the same label. So if I have the list
>
2010-10-09
On Oct 9, 3:45 pm, Sean McAfee wrote:
> Xah Lee writes:
> > Perl's exceedingly lousy unicode support hack is well known. In fact
> > it is the primary reason i “switched” to python for my scripting needs
> > in 2005. (See: Unicode in Perl and Python)
>
here's my experiences dealing with unicode in various langs.
Unicode Support in Ruby, Perl, Python, Emacs Lisp
Xah Lee, 2010-10-07
I looked at Ruby 2 years ago. One problem i found is that it does not
support Unicode well. I just checked today, it still doesn't. Just do
a web search o
On Sep 29, 11:02 am, namekuseijin wrote:
> On 28 set, 19:38, Xah Lee wrote:
>
> > • “list comprehension” is a very bad jargon; thus harmful to
> > functional programing or programing in general. Being a bad jargon, it
> > encourage mis-communication, mis-understanding.
2010-09-28
On Sep 28, 12:07 pm, namekuseijin wrote:
> On 28 set, 14:56, Xah Lee wrote:
>
> > ultimately, all lang gets transformed at the compiler level to become
> > machine instructions, which is imperative programing in the ultimate
> > sense.
>
> > You
xah wrote:
> in anycase, how's “do” not imperative?
On Sep 28, 6:27 am, namekuseijin wrote:
> > how's “do” a “named let”? can you show example or reference of that
> > proposal? (is it worthwhile?)
>
> I'll post it again in the hope you'll read t
27;t know about the crossposting.
>
> >> Oh, he does. It has been Xah's game for years.
>
> > But did "livibetter" know about it? I wasn't defending Xah, who is indeed
> > at the very least clueless and disruptive.
>
> Heh, he's not cluel
On Sep 27, 12:11 pm, namekuseijin wrote:
> On 27 set, 16:06, Xah Lee wrote:> 2010-09-27
>
> > > For instance, this is far more convenient:
> > > [x+1 for x in [1,2,3,4,5] if x%2==0]
> > > than this:
> > > map(lambda x:x+1,filter(lambda x:x%2==0,
ion” is good, because it adds another idiosyncratic syntax
to the lang, but such is with the tradition of imperative langs. The
ad hoc syntax aids in reading code by various syntactical forms and
hint words such as “[... for ... in ...]”.
Xah ∑ xahlee.org ☄
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n Perl and Python〉
http://xahlee.org/perl-python/quoting_strings.html
• 〈Strings in PHP〉
http://xahlee.org/php/quoting_strings.html
• 〈HTML6, Your HTML/XML Simplified〉
http://xahlee.org/comp/html6.html
• 〈Matching Brackets in Unicode〉
http://xahlee.org/comp/unicode_matching_brackets.html
Xah ∑ xahlee.org ☄
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