Nginx & Comet: Low Latency Server Push - igvita.com
By Ilya Grigorik on October 21, 2009 Server push is the most efficient and low latency way to exchange data. If both the publisher and the receiver are publicly visible then a protocol such as PubSubHubbub or a simpler Webhook will do the job. However, if the receiver is hidden behind a firewall, a NAT, or is a web-browser which is designed to generated outbound requests, not handle incoming traff
Aerial（エアリアル） - Ajax/Cometの次を行く リアルタイム双方向RPC - Blog by Sadayuki Furuhashi
JavaScript - サーバー間で双方向のRPC通信を行う技術は「Aerial」（エアリアル）という名前になりました*1。アイディアを出していただいた皆様、ありがとうございましたm(_ _)m Aerialは、通信にFlashを使い、JavaScriptとサーバープログラムとの間で双方向のRPC呼び出しを行う技術です。つまり、サーバー側からJavaScriptのメソッドを呼び出したり、逆にJavaScriptからサーバー側のプログラムを呼び出したりします。 サーバーから直接JavaScriptのコードを呼び出したり、逆にJavaScriptからサーバー側のメソッドを呼び出したりできるので、通信の内容を意識する必要がなく、バグの混入を抑えます。RPC成分入り！ ライブラリを開発するときも、HTTPやブラウザ間の実装の違いを意識する必要も無く、ごく普通のTCP接続で通信を行うので、Come
畳み込み関数の比較 (fold / accumulate / inject / reduce) - blanket log
つーか、fold の弱点として、言語によって引数の順番がまちまちで、 正直憶えきれないってのがあるんだよな。誰か対応表とか作ってくれんもんか。 jijixi's diary - fold, map, for-each この中から一つ選ぶとしたらどれ？ 確かにいろいろとややこしいのでまとめてみました。 いくつかの言語について大雑把に表にすると次のような感じ。 言語 関数 Haskell, OCaml, Scheme, Erlang foldl* f init items C++ accumulate(begin, end, init, f) Ruby*, JavaScript items.inject(init, f) Python, Perl* reduce(f, items [, init]) 言語 畳み込む二項演算 Scheme(SRFI)*, Erlang f(item, acc)
Bayes classification in Ruby made easy – /bin/recykl
Recently I was experimenting with ruby bayes classification. At first sight it looks like a difficult topic, but with the right libraries it is interesting and funny. Before you start experimenting, you have to install 3 gems. gem install classifier gem install madeleine Confirm the required stemmer gem. For the beginning, lets experiment with the plain bayes classifier. require 'classifier' bayes
Tokyo Cabinet: Beyond Key-Value Store - igvita.com
By Ilya Grigorik on February 13, 2009 It took Ruby some time to go from an infant research project by Matz to a language we've all come to know so well. Now, another Japanese developer (Mikio Hirabayashi) has all the potential to repeat this cycle with his new database project: Tokyo Cabinet. Developed and sponsored by Mixi Inc. (Japanese Facebook), it is an incredibly fast, and feature rich datab
Haru Free PDF Library
Haru development is moved to libharu.org. Please update your bookmarks. HARU is a free, cross platform, open-sourced software library for generating PDF. It supports the following features. Generating PDF files with lines, text, images. Outline, text annotation, link annotation. Compressing document with deflate-decode. Embedding PNG, Jpeg images. Embedding Type1 font and TrueType font. Creating e
PDFで文字化けについて
Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message PDFで文字化けについて CentOS 5.0 ruby 1.8.5 rails 2.0.2 rake 0.8.1 Acrobat Reader 8.1 Redmine 0.7.0 RC1(r1330) にてRedmineを運用しています。 r1300 http://www.redmine.org/repositories/revision/redmine?rev=1300 のTranslation updatesにて general_pdf_encoding: SJIS から general_pdf_encoding:
PDF::Writer for Ruby ~ A Pure-Ruby PDF Document Creation System
Introduction PDF::Writer for Ruby provides the ability to create PDF documents using only native Ruby libraries. There are several demo programs available in the demo/ directory. The canonical documentation for PDF::Writer is the 95-page manual, manual.pdf, generated using bin/techbook (just techbook for RubyGem users) and the manual file manual.pwd. Development for PDF::Writer is hosted on RubyFo
ぐうたら ruby ユーザのページ
試しに作ったもの／ライブラリ tgif の obj ファイル形式ファイル生成モジュール 試作はここ→ [ruby-list:8693] GDGraph：Ruby/GD を使ったグラフライブラリ 試しに作ったもの／スクリプト Sokoban for Ruby/Tk(2003.09.11) sokoban_tk-20030911.rb(9k) 点字(読み)練習プログラム Bread Ruby/Tk & Ruby/Gtk & Ruby/Qt & FXRuby & Apollo & FLTK 版(2002.07.06) bread-0.0.6.tar.gz(22k)| README 「京都名所クイズ」デモプログラム Ruby/Tk 版(2001.06.17) hippo5tqtk_2001061701.rb(6k) 試しに作ったもの／ドキュメント、その他 日本語フォントパッチforpdf-writ
Operations by Experts since 2006
Let us handle your Infrastructure Lift & Shift Configuration Management Deployment CI/CD Monitoring Alert Response Infrastructure Upgrade Cloud Migration Scaling Daily Operations Database Consulting Upgrade We've been building and maintaining World Class Infrastructures since 2006. Let our team of DevOps Experts handle your infrastructure so you can focus on your business! What's DevOps as a Servi
CodeSnippets: Rails CSV Export [ruby] [rails]
Never been to CodeSnippets before? Snippets is a public source code repository. Easily build up your personal collection of code snippets, categorize them with tags / keywords, and share them with the world (or not, you can keep them private!) # require 'rubygems' if using this outside of Rails require 'fastercsv' def dump_csv @users = User.find(:all, :order => "lastname ASC") @outfile = "members_
Welcome — Ruby Enterprise Edition
Highlights Allows your Ruby on Rails applications to use 33% less memory on average, when used in combination with Phusion Passenger. 100% compatible with the official Ruby interpreter, version 1.8.7. Well-tested and extremely stable. Easy to install, either via a native Linux package or via the included installer. Can be installed in parallel with regular Ruby. 100% self-contained, 0% installatio
Andre on Tech: GeoKit: a plugin for location-based Rails apps
I am happy to release GeoKit over at RubyForge. GeoKit has been a collaboration between myself and Bill Eisenhauer What is GeoKit? Geokit is a Rails plugin for building location-based apps. It provides geocoding, location finders, and distance calculation in one cohesive package. If you have any tables with latitude/longitude oolumns in your database, or if you every wanted to easily query for "al
[ruby] released jrails_auto_complete
Programming using jQuery is more fun than protoype.js, but Ruby on Rails depend on Prototype.js and script.aculo.us strongly. jRails is solution that use jQuery on RoR platform but jRails doesn't have some plugins, auto_complete, in_place_editor and so on. So I release jrails_auto_complete rails plugin. INSTALL % cd /path/to/rails_app % ./script/plugin install http://svn.raku.to/throwaway/jrails_a
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