am0c

Title: 펄의 구문은 분석될 수 없다: 형식적인 증명 Package: Seoul.pm Category: perl Category: Seoul.pm Author: Jeffrey Kegler

저자

am0c

From SocialCalc to EtherCalc

Previously, in The Architecture of Open Source Applications, I described SocialCalc, an in-browser spreadsheet system that replaced the server-centric WikiCalc architecture. SocialCalc performs all of its computations in the browser; it uses the server only for loading and saving spreadsheets.

...diagram on SocialCalc's scalability model...

For the Socialtext team, performance was the primary goal behind SocialCalc's design. The key observation was this: Client-side computation in JavaScript, while an order of magnitude slower than server-side computation in Perl, was much faster than the network latency incurred during AJAX roundtrips.

Toward the end of the AOSA chapter, we introduced simultaneous collaboration on spreadsheets, using a simple, chatroom-like architecture:

am0c

;; copy region as `fill-region`ed even
;; in longlines-mode or visual-line-mode.
;;
;; thanks to @y0ngbin for this idea.

(global-set-key [?\C-x ?\M-w] 'copy-region-as-fill)

(defun copy-region-as-fill (beg end)
  (interactive "r")
  (when (region-active-p)

am0c

#!/bin/sh

BZ_ADMIN_EMAIL='<user>@gmail.com'
BZ_ADMIN_PASSWORD='****'
BZ_ADMIN_REALNAME='realname'
BZ_SERVER_NAME='bz4.localhost'
BZ_URLBASE='http://bz4.localhost/'

BZ_APACHE_GROUP='www-data'
BZ_INSTALL_PATH='/home/bugzilla/public_html/bugzilla'

am0c

am0c@amolap:~/local/pt$ cat MainWindow.pm 
use Listener;

class MainWindow { 
	has Listener $.listener;
}

am0c@amolap:~/local/pt$ cat Listener.pm 
use MainWindow;

am0c

use v6;

class Hubot::Listener {

    has Code $.match    is rw;
    has Code $.callback is rw; # handles cb => postcircum:<( )>
                               # .. does not work

    method call ($message --> Bool) {
        my @matching = $.match.($message);

am0c

$ traceroute 64.111.29.139
traceroute to 64.111.29.139 (64.111.29.139), 30 hops max, 60 byte packets
 1  192.168.219.1 (192.168.219.1)  29.574 ms  40.702 ms  52.115 ms
 2  * * *
 3  * * *
 4  * * *
 5  * * *
 6  * * *
 7  * * *
 8  * * *

am0c

;
; mmm-mode config for Mojolicious::Lite perl file.
; mmm-mode lib is from here: https://github.com/purcell/mmm-mode
; font locks of [c]perl-mode and mmm-mode conflict each other.
;
(add-to-list 'load-path "~/.emacs.d/packages/mmm-mode")

(require 'mmm-auto)
(require 'mmm-compat)
(require 'mmm-vars)

am0c

# VNC 서버 머신에 vnc-tunnel.sh과 vnc-setup.sh 파일을 넣고 vnc-setup.sh을 실행한다.
# 클라이언트에서 vnc-viewer.sh을 실행한다.
#
# +----------+ ssh +-----------+ ssh +----------+
# |  Server  |---->|  Gateway  |<----|  Client  |
# +----------+     +-----------+     +----------+
#      ?       vnc.gateway.am0c.org       ?
#
#------------  vnc-setup.sh ------------#
#!/bin/sh

am0c

am0c@amolap:~/tmp/stat$ cat section-3.R 
resist <- data.frame(
 case = c(
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
  1, 1, 1, 1, 1