RAA

bindata

Dion Mendel — 2013-05-21T20:29:57+09:00

What is BinData?

Do you ever find yourself writing code like this?

  io = File.open(...)
  len = io.read(2).unpack("v")
  name = io.read(len)
  width, height = io.read(8).unpack("VV")
  puts "Rectangle #{name} is #{width} x #{height}"

It’s ugly, violates DRY and feels like you’re writing Perl, not Ruby.

There is a better way. Here’s how you’d write the above using BinData.

  class Rectangle < BinData::Record
    endian :little
    uint16 :len
    string :name, :read_length => :len
    uint32 :width
    uint32 :height
  end

  io = File.open(...)
  r  = Rectangle.read(io)
  puts "Rectangle #{r.name} is #{r.width} x #{r.height}"

BinData makes it easy to create new data types. It supports all the common primitive datatypes that are found in structured binary data formats. Support for dependent and variable length fields is built in.

pgsql

Bertram Scharpf — 2013-05-15T21:24:51+09:00

A PostgreSQL library that was carefully designed.

Features:

* Connection parameters from hash
* Query parameters
* Asynchronous queries
* Quick query of single lines or values
* Full PostgreSQL quoting support
* Built-in transactions and savepoints by Ruby blocks

laplace

borisov — 2013-05-13T04:37:44+09:00

Laplace transform inverse

kramdown

Thomas Leitner — 2013-05-09T15:59:02+09:00

kramdown (sic!) is a free MIT-licensed Ruby library for parsing a superset of Markdown syntax. It is completely written in Ruby, supports standard Markdown (with some minor modifications) and various extensions that have been made popular by the PHP Markdown Extra package and Maruku.

It is probably the fastest pure-Ruby Markdown converter available (February 2012), being 4x faster than Maruku and about 9x faster than BlueFeather.

step

Bertram Scharpf — 2013-04-29T11:14:04+09:00

These are methods on standard classes that didn‘t manage to become part of the Ruby interpreter. (Although, some are part of Ruby 1.9/1.8.7 but not 1.8.6).

Some of them are

* String#notempty?
* String#clear
* String#head
* String#tail
* String#rest
* String#starts_with
* String#ends_with
* Array#notempty?
* Hash#notempty?
* Struct.[]
* Interval timer
* File system stats
* File#flockb using the block

arcadia

Antonio Galeone — 2013-04-27T07:45:28+09:00

Arcadia is a Light Integrated Development Environment (IDE) for Ruby language written in Ruby using the classic tcl/tk GUI toolkit.

rbfind

Bertram Scharpf — 2013-04-14T06:07:48+09:00

A replacement for the standard UNIX command find.
Files may be examined using Ruby expressions.
Full ls-style output support including color.
Full grep-style output support.

Gem source: <http://gems.bertram-scharpf.de>

ruby-odbc

Christian Werner — 2013-03-14T04:39:13+09:00

Extension library to use ODBC data sources from Ruby.
Supports Ruby 1.6.x and >= 1.8 on Win32 OSes and UN*X
(unixODBC 2.x or iODBC 2.x/3.x).
Version 0.98 adds UTF8 support by using ODBC UNICODE API.
Starting with version 0.99 license is same as Ruby's.

local-openid

Eric Wong — 2013-03-12T16:47:19+09:00

local-openid allows users with shell accounts on servers to authenticate
with OpenID consumers by editing a YAML file in their home directory
instead of authenticating through HTTP/HTTPS.

* local.openid@librelist.org
* git://bogomips.org/local-openid.git
* http://bogomips.org/local-openid.git

tzinfo

Phil Ross — 2013-03-12T07:46:39+09:00

TZInfo is a library that uses the standard tz (Olson) database to provide daylight savings aware transformations between times in different time zones. The tz database is compiled into Ruby classes which are packaged in the release. No external zoneinfo files are required at runtime.