<=> The spaceship operator

The comparison operator in Ruby <=> (also called the spaceship operator) returns -1, 0, or +1 depending on whether the first value is less, equal or greater than the second value.

DebugView

DebugView is an application that lets you monitor debug output on your local system, or any computer on the network that you can reach via TCP/IP.

http://technet.microsoft.com/en-us/sysinternals/bb896647.aspx

Work process - Kanban

http://en.wikipedia.org/wiki/Kanban

Ruby 1.9 Encodings

Better support with the Encoding module.

Ruby 1.8 Encoding

def utf8tolatin2(s)
begin
#conv = Iconv.new("ISO-8859-2", "UTF-8")
conv = Iconv.new("CP1250", "UTF-8") #Using Windows latin2 instead of iso
out = conv.iconv(s)
conv.close
rescue
#conv = Iconv.new("ISO-8859-2", "ISO-8859-2")
conv = Iconv.new("CP1250", "CP1250") #Using Windows latin2 instead of iso
out = conv.iconv(s)
conv.close
end
return out
end

STM Haskell

http://en.wikipedia.org/wiki/Software_Transactional_Memory

Stack Overflow

Interesting topic:

http://stackoverflow.com/questions/1722373/how-to-be-a-quality-programmer-in-a-programming-team

Gems install path in Windows

C:\ruby\lib\ruby\gems\

IP address as it appears on Internet

http://www.yourip.us/

Google Maps

To display a location on the map, just enter the coordinates with a space in between.

52.255642 21.172998

http://maps.google.se/

Ragel State Machine Compiler

http://www.complang.org/ragel/

Ragel can be used for generating state charts and source code in Ruby, C, C++, Objective-C, D and Java.

Search for files in subdirs

How to search for all Nant build files in sub directories:
>dir /s /b *.build

VisualWx - IDE for WxWindows

http://visualwx.altervista.org/

Can be used for generating code in several languages. Among them Ruby.

Who is listening on a certain port?

netstat /b

Verify MSI content without installing

msiexec /a foo.msi TARGETDIR="c:\tmp\foo"

Call a single unit test method

>ruby --name

Monitor network interfaces and routes

Write at command line:
> route print

Emacs commands

Search on current word, accumulates search text current word under cursor:
C-s C-w C-w

Cut current word:
M-d

CTAGS för Emacs

A tool for creating TAGS files used by Emacs to quickly orientate in source code: http://ctags.sourceforge.net/

Change name of binary from ctags.exe to etags.exe. Now it will generate proper tags for Ruby. Execute by: "etags.exe *rb".

Commands in Emacs:

M-. [TAG]
Find the first definition of TAG. The default tag is the identifier under the cursor.

M-*
Pop back to where you previously invoked "M-.".

C-u M-.
Find the next definition for the last tag.