Windows’ bugs

a bug’s just hidden in my keyboard…
a green one…
under the Windows key!

escape sequences for rxvt

I’m posting this info because I had a hard time searching for it on the internet.

if you are using rxvt (or urxvt), and you want escape sequences to work as in xterm, you need to specify them in your .Xdefaults.

here are the codes I had to add to have vim working properly on rxvt (I use alt-left_arrow and alt-right_arrow to navigate through tabs):

*Rxvt*meta8: false
*Rxvt.keysym.C-Left: +033[1;5D
*Rxvt.keysym.C-Right: +033[1;5C
*Rxvt.keysym.M-Left: +033[1;3D
*Rxvt.keysym.M-Right: +033[1;3C
(substitute “+” with “\”)

enjoy!

blog post with charm

this is a test blog entry, posted with charm!

charm is a text-based client which uses the MetaWeblog API to post entries to WordPress powered blogs. it also implements other APIs.

I’m wondering if simple ASCII entries like this one will be properly formatted by the WordPress’ Intelligent Text Formatting feature. it would be nice to use vim to edit it…

enjoy!

qwerty vs dvorak vs colemak to edit python code

yesterday, I was intrigued by the idea of choosing a more efficient keyboard layout to work with everyday.

as long as I type python code 90% of my time, I decided to evaluate the efficiency of the first 3 most widespread keyboard layouts: QWERTY, Dvorak and Colemak.

I used this excellent tool to compare the three layouts over the first 50000 characters of the webpy source code.

here are the results:

The Qwerty Keyboard Layout Vs The Dvorak Keyboard Layout

:: UP ::Overall effort

Layout	Effort	% improvement over worst layout
Qwerty	306,509.6	0.0 %
Dvorak	283,868.7	7.4 %
Colemak	275,347.6	10.2 %

---

:: UP ::Keys for each finger (stronger fingers should be used more often)

Layout	Thumbs	LPinky	LRing	LMiddle	LIndex	RIndex	RMiddle	RRing	RPinky	Total
Qwerty	25.9 %	12.4 %	5.3 %	9.5 %	11.6 %	7.6 %	5.6 %	8.9 %	13.2 %	54,237.0 keys
Dvorak	25.9 %	13.0 %	5.2 %	8.1 %	7.3 %	7.5 %	7.5 %	8.2 %	17.3 %	54,237.0 keys
Colemak	25.9 %	12.7 %	4.8 %	7.5 %	9.5 %	8.4 %	10.1 %	6.6 %	14.5 %	54,237.0 keys

Layout	Thumbs	Left hand	Right hand	Total
Qwerty	25.9 %	38.8 %	35.2 %	54,237.0 keys
Dvorak	25.9 %	33.6 %	40.5 %	54,237.0 keys
Colemak	25.9 %	34.5 %	39.6 %	54,237.0 keys

---

:: UP ::Finger Travel Distance (only the horizontal)

Layout	Thumbs	LPinky	LRing	LMiddle	LIndex	RIndex	RMiddle	RRing	RPinky	Total
Qwerty	0.0 %	18.1 %	2.0 %	10.5 %	15.5 %	12.1 %	8.6 %	9.9 %	23.4 %	1,441.5 m
Dvorak	0.0 %	21.1 %	4.1 %	3.5 %	10.0 %	12.5 %	7.6 %	10.8 %	30.4 %	1,210.3 m
Colemak	0.0 %	23.7 %	2.5 %	6.1 %	10.2 %	10.2 %	9.3 %	9.3 %	28.6 %	1,131.2 m

Layout	Thumbs	Left hand	Right hand	Total
Qwerty	0.0 %	46.0 %	54.0 %	1,441.5 m
Dvorak	0.0 %	38.8 %	61.2 %	1,210.3 m
Colemak	0.0 %	42.6 %	57.4 %	1,131.2 m

---

:: UP ::% home keys (out of all character keys plus SHIFT and ENTER, but excluding keys operated by thumbs)

Qwerty	20.4 %
Dvorak	33.7 %
Colemak	38.7 %

---

:: UP ::% keys typed with the same finger as the previous key (excluding repeating keys like ss)

Qwerty	4.5 %
Dvorak	3.8 %
Colemak	3.6 %

---

:: UP ::% keys typed with the same hand as the previous key (ex: in Qwerty sd or ss are included, but s s is not since you type the space with the other hand)

Qwerty	26.8 %
Dvorak	20.0 %
Colemak	24.6 %

---

:: UP ::% keys typed with the same hand as the previous key and jumping a row (ex: in Qwerty ev is a row jump – you jump over the middle row – and it’s awkward to type; ef is not a row jump)

Qwerty	10.3 %
Dvorak	5.7 %
Colemak	4.1 %

---

:: UP ::% keys typed with the same hand as the previous key and in reverse order (ex: in Qwerty df or kj are typed in the easier order pinky-ring-middle-index, whereas fd and jk are in reverse order index-middle-ring-pinky, and harder to type)

Qwerty	15.4 %
Dvorak	11.9 %
Colemak	15.2 %

---

:: UP ::% keys that need the SHIFT modifier

Qwerty	14.3 %
Dvorak	14.3 %
Colemak	14.3 %

---

:: UP ::Pairs of consecutive keys typed with the same finger in Qwerty

:_NewLine_	253 times	0.47 %
de	200 times	0.37 %
tr	158 times	0.29 %
rt	102 times	0.19 %
ol	99 times	0.18 %
un	98 times	0.18 %
q_LeftShift_	87 times	0.16 %
ce	86 times	0.16 %
“_NewLine_	81 times	0.15 %
ed	80 times	0.15 %
}_NewLine_	62 times	0.11 %

---

:: UP ::Pairs of consecutive keys typed with the same finger in Dvorak

ct	196 times	0.36 %
s_RightShift_	169 times	0.31 %
db	152 times	0.28 %
l_RightShift_	137 times	0.25 %
‘_LeftShift_	133 times	0.25 %
rn	115 times	0.21 %
ls	100 times	0.18 %
}_NewLine_	62 times	0.11 %
=_RightShift_	59 times	0.11 %
“_LeftShift_	58 times	0.11 %
e.	58 times	0.11 %

---

:: UP ::Pairs of consecutive keys typed with the same finger in Colemak

:_NewLine_	253 times	0.47 %
ue	237 times	0.44 %
db	152 times	0.28 %
e,	89 times	0.16 %
q_LeftShift_	87 times	0.16 %
“_NewLine_	81 times	0.15 %
}_NewLine_	62 times	0.11 %
]_NewLine_	46 times	0.08 %
pt	44 times	0.08 %
‘_RightShift_	41 times	0.08 %
“_RightShift_	41 times	0.08 %

---

:: UP ::Key frequency in your text

_Space_	14067 times	25.94 %
_LeftShift_	4391 times	8.10 %
e	3239 times	5.97 %
t	2184 times	4.03 %
s	2170 times	4.00 %
r	1890 times	3.48 %
a	1619 times	2.99 %
o	1557 times	2.87 %
l	1530 times	2.82 %
n	1519 times	2.80 %
_NewLine_	1511 times	2.79 %
i	1372 times	2.53 %
_RightShift_	1357 times	2.50 %
d	1014 times	1.87 %
f	971 times	1.79 %
c	855 times	1.58 %
u	851 times	1.57 %
m	716 times	1.32 %
p	715 times	1.32 %
(	674 times	1.24 %
)	673 times	1.24 %
.	658 times	1.21 %
‘	623 times	1.15 %
,	573 times	1.06 %
b	571 times	1.05 %
”	563 times	1.04 %
_	554 times	1.02 %
=	518 times	0.96 %
:	490 times	0.90 %
q	463 times	0.85 %
y	423 times	0.78 %
h	416 times	0.77 %
w	352 times	0.65 %
>	348 times	0.64 %
g	304 times	0.56 %
v	257 times	0.47 %
x	253 times	0.47 %
k	231 times	0.43 %
<	154 times	0.28 %
/	125 times	0.23 %
[	120 times	0.22 %
]	119 times	0.22 %
;	113 times	0.21 %
0	86 times	0.16 %
`	85 times	0.16 %
+	84 times	0.15 %
1	81 times	0.15 %
{	80 times	0.15 %
}	79 times	0.15 %
–	78 times	0.14 %
j	76 times	0.14 %
*	72 times	0.13 %
#	69 times	0.13 %
2	67 times	0.12 %
%	55 times	0.10 %
$	52 times	0.10 %
3	31 times	0.06 %
6	29 times	0.05 %
8	18 times	0.03 %
@	17 times	0.03 %
\	14 times	0.03 %
z	13 times	0.02 %
5	13 times	0.02 %
4	8 times	0.01 %
?	8 times	0.01 %
9	7 times	0.01 %

---

:: UP ::Frequent pairs of keys in your text

_Space__Space_	9243 times	17.04 %
_NewLine__Space_	1233 times	2.27 %
_Space__LeftShift_	805 times	1.48 %
_LeftShift_(	674 times	1.24 %
_LeftShift_)	673 times	1.24 %
_LeftShift_”	563 times	1.04 %
_LeftShift__	554 times	1.02 %
se	549 times	1.01 %
,_Space_	543 times	1.00 %
_LeftShift_:	490 times	0.90 %
el	405 times	0.75 %
er	377 times	0.70 %
in	364 times	0.67 %
_Space__RightShift_	362 times	0.67 %
or	352 times	0.65 %
_LeftShift_>	348 times	0.64 %
_Space_i	344 times	0.63 %
_Space_s	341 times	0.63 %
te	340 times	0.63 %
e_LeftShift_	338 times	0.62 %
=_Space_	332 times	0.61 %
_Space_=	321 times	0.59 %
re	306 times	0.56 %
lf	294 times	0.54 %
)_NewLine_	281 times	0.52 %
e_Space_	281 times	0.52 %

actually, I was disappointed: there seem to be no clear advantage of Dvorak or Colemak, wrt QWERTY and, given the popularity of the latter, switching does not seem to be a good idea…

this is another weblog client test

…and this is using BloGTK, which seems a little bit better.
it support tags, too!

better…

test with gnome-blog

this is a post using gnome-blog, a weblog client for gnome.

here I read about this possibility, but there were no instructions about how to configure the client…

if this is published, it can’t be so difficult…

wordpress.com and text based web browsers

today, I was appreciating how well wordpress.com renders on text based web browsers (using elinks).

unfortunately, even if reading posts looks great, posting does not. actually, I’ve been able to delete one of my posts, while searching to edit it. completely wiped out. luckily, google cache saved my time and promptly found an older copy.

beware!

command line html validator

valid HTML is something we should strive to achieve.

W3C Validator is an invaluable tool to do just that.
unfortunately, validating a local file you are working on can be annoying after the 100th time you’ve uploaded it to the W3C website.

Here you can find a command line HTML validator that simply uploads anything passed to it from stdin to the W3C Validator.

The basic syntax is:
$> python validate.py < file_to_validate.html

enjoy!

Note: before using the file, rename it from validatepy.pdf to validate.py. unfortunately, I’m not allowed to post .py files on this website…

pubblicita’ non richiesta da parte di RAI su e-mail

RAI utilizza la e-mail degli utenti per informazioni pubblicitarie non richieste.

se questo vi da’ fastidio tanto quanto ne da’ a me, evitate di compilare il modulo disponibile qui.

io l’ho fatto, purtroppo, per lamentarmi delle sciocchezze pseudo-scientifiche diffuse dalla trasmissione “La medicina“. ecco l’e-mail, automaticamente generata dal sistema, che mi conferma il successo dell’invio… e fa un po’ di pubblicita’:

Grazie per averci contattato, la Sua e-mail verra’ esaminata nel piu’ breve tempo possibile.

Con l’occasione, La informiamo che chiamando il numero 800.389.389, e’ possibile ricevere gratis e senza impegno il catalogo “La Rai per la cultura”; una pubblicazione gratuita che raccoglie i migliori programmi culturali realizzati dalla Rai nell’arco di oltre 50 anni: 40 collane di dvd comprendenti oltre 500 titoli. Per ulteriori informazioni consulti il sito www.perlacultura.rai.it

Contact Center ScriveR@i
– snip –

la RAI non sa proprio piu’ dove altro mettere la sua spazzatura…

py2dot

py2dot example

py2dot is a python script to generate graphs from a  python program.

it interprets a python program as a graphs of function calls. it can represent classes and imported modules.

py2dot is available from pypi.

more information are available here.