Ruby

What is the best exception to use for bad Data State?
I don't want to use "ArgumentError" as this is a matter of data that may be programmed in a daughter class, and is not necessarily an argument. Specifically, the state of some object variables in this case. -- "It's the preponderance, stupid!" - Professor Stephen Schneider, IPCC member ... 13 Feb 2010 19:24

Is there a way to get a method to always run at the end of anydescendent's initialize method?
I have an initialize method I want to run at the end of any daughter or granddaughter 'initialize' to make sure the state has been created properly, and I would rather specify the execution from the base class itself than count on those descendents to do it. xc -- "It's the preponderance, stupid!" - Profe... 12 Feb 2010 19:05

can you help me about this deal?
hi i saw this very cheap macbook pro 500$ here: (the 3rd from the left) http://sites.google.com/site/applestorebyamazone1/ i want to buy it, is it a good price? can i get a lower price? thanks ... 11 Feb 2010 11:39

Global rescue - DRY (don't repeat yourself)
Hi, lib_error.rb: class Library def self.error puts "Oops. something went wrong" end end original_code.rb: # require the file first line of code instead of calling in mid of programs require 'lib_error.rb' begin puts fg rescue Library.error end begin puts fdg resc... 15 Feb 2010 02:10

fastest readline method
I have a script that parses a bunch of data off the wire and pipes it into a fastercsv array. I want to read in a text file and check certain columns for matches from the data in the text file. There seems to be tons of different ways read in a file and "grep" match for something. I would like to do this in the ... 11 Feb 2010 06:05

Exit method?
Hello World, I am new to programming and am writing a program in ruby that serves as a tutorial for absolute beginners. It's heavily reliant on if & else. I was wondering if there is a method for exiting a program. Here is the Context; puts ' If you would like to begin, press enter.' confirm1 = gets.chomp if c... 21 Feb 2010 12:37

Can't install hpricot gem
On ubuntu 9.10 I had to install the ruby-dev package sudo apt-get install ruby1.8-dev -- Posted via http://www.ruby-forum.com/. ... 4 Mar 2010 01:15

Using Ruby /DL to invoke function in windows dll
Hi, I have a C++ code converted into a windows Dll.I want to use Ruby /DL to invoke the functions in the DLL. Here are the function prototypes: C++ code [code] // MathFuncsDll.h namespace MathFuncs { class MyMathFuncs { public: // Returns a + b static __declspec(dllexport)... 11 Feb 2010 03:54

Shared memory creation in ruby
Hi, I am new to ruby and I want to write code which makes shared memory and writes to it.Similar to the C code here: void main(int argc, char* argv[]) { HANDLE mappedFile = 0; int oneSecond = 1000; char* shared = NULL; HANDLE eventHnd; eventHnd = CreateEvent(NULL, FALSE, FALSE, "TestShare... 10 Feb 2010 04:28

Ray Tracing API.
Has any one written or used a RayTracing API in ruby? I was not able to find one using Google. -- Posted via http://www.ruby-forum.com/. ... 10 Feb 2010 13:23