[#319108] Iterator objects and lazy evaluation — Yuh-Ruey Chen <maian330@...>

Two questions:

14 messages 2008/11/01

[#319117] Poor performance of Ruby 1.8.7 when installed with MacPorts — abc <arcadiorubiogarcia@...>

Hi,

15 messages 2008/11/01

[#319176] Ruby for Philosophers — Sebastian Torena <citizenkant@...>

Hi there,

14 messages 2008/11/02

[#319196] ruby1.9: lazy versions of Enumerator#select and friends? — Brian Candler <b.candler@...>

I've been having a play with Enumerators in ruby 1.9, in particular

12 messages 2008/11/02

[#319239] Rake task for building latex? — Stefano Crocco <stefano.crocco@...>

Does anyone know whether there's a rake task to build latex files, including

10 messages 2008/11/03

[#319319] Ruby's take on S.O.L.I.D. — Mike Lopke <reglopke@...>

I'm curious about everyone's take on Bob Martin's S.O.L.I.D. design

16 messages 2008/11/03

[#319401] Combination of numbers in an array that add up to x — Hae Lee <hae.lee.subscription@...>

Objective: Find list of values in an array that adds up to a specific

17 messages 2008/11/04

[#319404] Showing a spinner ? — Aldric Giacomoni <aldric@...>

How do I show a spinner on the command line interface when a ruby script

13 messages 2008/11/04

[#319440] What would you like to know about JRuby? — Charles Oliver Nutter <charles.nutter@...>

Tom Enebo and I are putting together our JRuby presentation for

22 messages 2008/11/04

[#319532] What's the Best Way to Mimic an HTTP Request? — Daniel Miessler <daniel@...>

I'm trying to write a tool that will take a domain as an argument and

10 messages 2008/11/05

[#319546] Ruby has a Face that it wears on its feet — "Jayson Williams" <williams.jayson@...>

In my opinion, Ruby's official face should be Shoes. Shoes gives Ruby

17 messages 2008/11/05
[#319553] Re: Ruby has a Face that it wears on its feet — "Martin DeMello" <martindemello@...> 2008/11/05

On Wed, Nov 5, 2008 at 11:17 AM, Jayson Williams

[#319576] how to quickly find a string towards the end of a large io object — bwv549 <jtprince@...>

How do I scan starting at the end of a big io object to find a string

12 messages 2008/11/06

[#319702] Sudoku Generator (#182) — Matthew Moss <matt@...>

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14 messages 2008/11/07

[#319769] implementing mvc - using observer pattern - beginner to OOP — Adam Akhtar <adamtemporary@...>

Hi I started making a simple command line todo list application as a way

10 messages 2008/11/08

[#319770] what's easiest way to compare a Float & BigDecimal (i.e. like a equals mechanism) — "Greg Hauptmann" <greg.hauptmann.ruby@...>

Hi,

8 messages 2008/11/08

[#319835] Moving large amount of files, 1.750.000+ — Sebastian Newstream <abeansits@...>

Hello fellow Rubyists!

15 messages 2008/11/09
[#319837] Re: Moving large amount of files, 1.750.000+ — Robert Klemme <shortcutter@...> 2008/11/09

On 09.11.2008 18:04, Sebastian Newstream wrote:

[#319861] Notepad++ (no debug output, using XP) — Ed Hardy <asm.sol@...>

Notepad++ seems to be a great editor for Ruby, in XP Windows. However,

13 messages 2008/11/10

[#319902] Problem with object methods? — Carter Davis <theshakrah@...>

I recently made an object for a game I'm making. It uses the constructor

16 messages 2008/11/10
[#319908] Re: Problem with object methods? — Hugh Sasse <hgs@...> 2008/11/10

[#319911] Re: Problem with object methods? — Carter Davis <theshakrah@...> 2008/11/10

Okay, I made an example.

[#320057] Convert text string i.e 'Peter' into integer ID — Justus Ohlhaver <ohlhaver@...>

Hello,

23 messages 2008/11/12

[#320101] Issue with block and getting to local variables — Tarek Other <cashew250@...>

Ok I'm new to ruby and want to do the following, I want to define a

12 messages 2008/11/12

[#320103] Need tutoring on using a path environment variable — dkmd_nielsen <donn@...>

I don't know what to do. I have an environment variable, PW_PATH,

11 messages 2008/11/12

[#320135] '#' characters are breaking my regexp — Max Williams <toastkid.williams@...>

I'm trying to build a regexp that includes music notes, eg Bb or C#.

14 messages 2008/11/13

[#320202] Highline - question with multiple choices — szimek <szimek@...>

Hi,

14 messages 2008/11/14
[#320208] Re: Highline - question with multiple choices — James Gray <james@...> 2008/11/14

On Nov 14, 2008, at 4:23 AM, szimek wrote:

[#320270] Re: Highline - question with multiple choices — szimek <szimek@...> 2008/11/15

On 14 Lis, 14:52, James Gray <ja...@grayproductions.net> wrote:

[#320213] Unit Conversion (#183) — Matthew Moss <matt@...>

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37 messages 2008/11/14

[#320280] IO#lineno= doesn't work the way I expected — Chad Perrin <perrin@...>

I'm working on something that operates on each line of a file

22 messages 2008/11/15
[#320283] Re: IO#lineno= doesn't work the way I expected — Tim Hunter <TimHunter@...> 2008/11/15

Chad Perrin wrote:

[#320286] Re: IO#lineno= doesn't work the way I expected — Chad Perrin <perrin@...> 2008/11/15

On Sun, Nov 16, 2008 at 02:27:45AM +0900, Tim Hunter wrote:

[#320287] Re: IO#lineno= doesn't work the way I expected — "Michael Guterl" <mguterl@...> 2008/11/15

On Sat, Nov 15, 2008 at 2:08 PM, Chad Perrin <perrin@apotheon.com> wrote:

[#320288] Re: IO#lineno= doesn't work the way I expected — "Michael Guterl" <mguterl@...> 2008/11/15

On Sat, Nov 15, 2008 at 2:54 PM, Michael Guterl <mguterl@gmail.com> wrote:

[#320359] Why does tmail stop my CGI script form working? — Chad Perrin <perrin@...>

I decided to try TMail for the back end of a new contact page on a

14 messages 2008/11/17

[#320370] How can I overload a method in Ruby — Zhao Yi <youhaodeyi@...>

This is my class definition:

19 messages 2008/11/17
[#320374] Re: How can I overload a method in Ruby — Einar Magn俍 Boson <einarmagnus@...> 2008/11/17

there is no overloading, only overriding.

[#320417] How to extract links of a particular class type — "Sita Rami Reddy" <sitaramireddy@...>

I have a web page which has n number of links.

11 messages 2008/11/17

[#320446] function to select only certain key/value pairs from hash? — Aryk Grosz <tennisbum2002@...>

Whenever Im coding I usually come across having to create a new hash

14 messages 2008/11/17

[#320482] I don't like specs, should I change my point of view ? — Zouplaz <user@...>

Hello, I'm not trolling. I don't like specs (RSpec) : everytime I had a

18 messages 2008/11/18

[#320500] Should is the new Must? — Trans <transfire@...>

Why did 'should' become the going nomenclature of BDD framworks?

21 messages 2008/11/18

[#320553] Syntax question from a newbie to Ruby — David Spitzer <davidspitzer@...>

I am just learning Ruby and I can not seem to see why the first example

12 messages 2008/11/18

[#320655] build hash by iterating — Jason Lillywhite <jason.lillywhite@...>

I am building a hash this way:

15 messages 2008/11/19

[#320665] Question about host, gethostbyname and getaddress — Vladimir Fekete <fekete@...>

Hi *,

11 messages 2008/11/19

[#320709] ANN: One-Click Ruby Installer 186-27 Release Candidate 2 — Luis Lavena <luislavena@...>

Hello Ruby for Windows users!

11 messages 2008/11/19

[#320811] Found a ruby bug in the URI class, what do I do? — Ben Johnson <bjohnson@...>

I'm pretty sure this is a bug, and it seem so obvious that I'm thinking

9 messages 2008/11/20

[#320908] Befunge (#184) — Matthew Moss <matt@...>

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28 messages 2008/11/22
[#321031] Re: [QUIZ] Befunge (#184) — Matthew Moss <matt@...> 2008/11/24

Hopefully the quiz isn't intimidating... It's a fairly simple language

[#321006] Can you run a command line script with arguments, without typing 'ruby' first? — "Jayson Williams" <williams.jayson@...>

Hi All,

29 messages 2008/11/24
[#321008] Re: Can you run a command line script with arguments, without typing 'ruby' first? — "Diogo Lisboa" <diogoslisboa@...> 2008/11/24

chmod a+x my_script (restrict permissions if you want)

[#321022] Re: Can you run a command line script with arguments, without typing 'ruby' first? — "Jayson Williams" <williams.jayson@...> 2008/11/24

I am using win os, so the shabang thing isn't an option for me. I put

[#321023] Re: Can you run a command line script with arguments, without typing 'ruby' first? — "Glen Holcomb" <damnbigman@...> 2008/11/24

On Mon, Nov 24, 2008 at 2:12 PM, Jayson Williams

[#321024] Re: Can you run a command line script with arguments, without typing 'ruby' first? — "Glen Holcomb" <damnbigman@...> 2008/11/24

On Mon, Nov 24, 2008 at 2:21 PM, Glen Holcomb <damnbigman@gmail.com> wrote:

[#321027] Re: Can you run a command line script with arguments, without typing 'ruby' first? — "Jayson Williams" <williams.jayson@...> 2008/11/24

The associations are correct. I reset them just to be sure though. I

[#321095] Re: Can you run a command line script with arguments, without typing 'ruby' first? — Daniel Schömer <daniel.schoemer@...> 2008/11/25

Jayson Williams wrote:

[#321037] Chris Pine tutorial assistance chapter 7 sort data without use of .sort method — jgheal@...

I'm learning to progam and came accross Chris Pine's Ruby Tutorial.

12 messages 2008/11/24

[#321039] Good math/stats libraries for Ruby? — Kenneth McDonald <kenneth.m.mcdonald@...>

There seem to be lots of small stats/math libraries for Ruby, but none

10 messages 2008/11/24

[#321166] time to back peddle? (Ruby 1.8.7) — Trans <transfire@...>

I just updated my Ubuntu system and was a bit surprised to find:

16 messages 2008/11/26

[#321179] How to get a reference to a block (when no explicit block parameter is used?) — Kenneth McDonald <kenneth.m.mcdonald@...>

In a function, I can find out if a block was given using block_given?,

8 messages 2008/11/26

[#321246] Performance issues with large files -- ruby vs. python :) — sa 125 <s_ayalon@...>

Hi all -

16 messages 2008/11/27
[#321248] Re: Performance issues with large files -- ruby vs. python :) — Florian Gilcher <flo@...> 2008/11/27

>

[#321271] Ruby's duck typing — "stephan.zimmer" <stephan.zimmer@...>

I would like to represent certain data by a list; to this end I let

17 messages 2008/11/27

[#321287] Programming Noob Chris Pine Tutorial sorting without use of array.sort method — whisperjim <jgheal@...>

I'm working through the following tutorial http://pine.fm/LearnToProgram/

10 messages 2008/11/27

[#321297] eRuby/erb outside of Rails — Jonny Noog <jonnynoog@...>

Hello,

18 messages 2008/11/28

[#321387] best gui toolkit — Warren Dulnuan <rr3800@...>

What is the best GUI toolkit for Ruby?

32 messages 2008/11/29
[#321397] Re: best gui toolkit — Vladimir Fekete <fekete@...> 2008/11/29

[#321421] Anyone scraping dynamic AJAX sites? — Becca Girl <cschall@...>

Hello.

12 messages 2008/11/30

[#321428] Enumerable#select used to return actual values — Mike Austin <"mike[nospam]"@...>

I'm pretty sure select used to use the actual value of the called block,

36 messages 2008/11/30
[#321432] Re: Enumerable#select used to return actual values — Robert Klemme <shortcutter@...> 2008/11/30

On 30.11.2008 04:46, Mike Austin wrote:

[#321906] Re: Enumerable#select used to return actual values — Mark Thomas <mark@...> 2008/12/04

On Nov 29, 10:46=A0pm, Mike Austin <"mike[nospam]"@mike-austin.com>

[#321912] Re: Enumerable#select used to return actual values — Trans <transfire@...> 2008/12/04

Re: Programming Noob Chris Pine Tutorial sorting without use of array.sort method

From: "List.rb" <list.rb@...>
Date: 2008-11-28 03:15:58 UTC
List: ruby-talk #321315
On Nov 27, 2008, at 6:22 PM, "Todd Benson" <caduceass@gmail.com> wrote:

> On Thu, Nov 27, 2008 at 3:30 PM, whisperjim <jgheal@googlemail.com>  
> wrote:
>> I'm working through the following tutorial http://pine.fm/LearnToProgram/
>> (recommended by the official Ruby site)
>> as a starting point and I've got to chapter 7 and struggling with   
>> the
>> following  assignment........
>>
>> " Let's write a program which asks us to type in as many words as we
>> want (one word per line, continuing until we just press Enter on an
>> empty line), and which then repeats the words back to us in
>> alphabetical order. OK? "
>>
>> Now I'm supposed to do this without any .sort method and the chapters
>> I've covered so far (1 ~ 7) have not covered method creation,
>> Classes,Blocks or Procs, so the challenge is to solve the assignment
>> without using them.
>>
>> Now I've written a program but I think the basic 'mental model' is
>> flawed, I say this because of the results I'm getting.
>>
>> If I use the following input [ q w e r t y ] I end up with [ e q r  
>> t w
>> w ] and the input [ z x c v b ] end up as [ b b b b b ].
>>
>> If my mental model is o.k, then my code must be wrong, but I'm  
>> stumped
>> at to where.
>>
>> # concept - store words in 1st array (words_array). Find the
>> 'smallest' word alphabetically by selecting the last word (call it
>> wordCheck) and compare with the first word, second word and so  
>> on.....
>> and exchange the value of wordCheck with the other word (1st/2nd...
>> word) if the other word value happens to be less. Start the checking
>> again with the first word, second word.... and so on until a counter
>> has been reached (counter equal to current length of first unsorted
>> array). Once the counter has been reached, put the value of wordCheck
>> into a second array (sortedWords_array) and delete wordCheck value
>> from first unsorted array (words_array) and repeat until words_array
>> is empty.
>>
>>
>> puts 'Type in as many words as you want and once you\'ve had enough,
>> just \'enter\' a clear line.'
>>
>> words_array = []        # create 1st array called words_array to  
>> store users
>> unsorted values
>>
>> loop do
>>  input = gets.downcase.chomp  # take the user input, remove the
>> 'enter' off the tail and lower the case and call ...
>>  break if input.empty?        # .. it 'input' , break from the loop  
>> if
>> 'input' is equal to empty
>>  words_array << input         # push 'input' to the words_array
>>
>> end
>>
>> wordCheck = words_array.last    # wordCheck is equal to the last  
>> 'input'
>> stored in the words_array
>> rotateCounter = 0
>> sortedWords_array = []          # create 2nd array to contain  
>> 'sorted' values
>>
>> until words_array.length == 0   # exit once no words left in the  
>> first
>> unsorted array
>>
>>       while rotateCounter <= words_array.length # exit if rotate  
>> counter
>> greater than words contained within first array
>>               if words_array[0] >= wordCheck # continue if first  
>> word in 1st array
>> greater or equal to wordCheck value
>>
>>                       words_array.push words_array.shift # rotate  
>> the first unsorted
>> array
>>                       rotateCounter = rotateCounter + 1 # add 1 to  
>> counter
>>
>>               else wordCheck = words_array[0] # replace current  
>> value (wordCheck)
>> with 'smaller' word
>>                       rotateCounter = 0       # reset counter to zero
>>               end
>>
>>       end
>>
>>       sortedWords_array.push wordCheck        # add wordCheck value  
>> to 2nd array
>>
>>       until wordCheck = words_array.last      # rotate first array  
>> until a
>> matching ..
>>               words_array.push words_array.shift # .. value found  
>> at the back of
>> the first array
>>       end
>>       words_array.pop                         # remove the last  
>> value contained within the 1st
>> array
>>       rotateCounter = 0                       # reset rotate counter
>>       wordCheck = words_array.last            # replace current  
>> value of wordCheck
>> with new last word from 1st array
>> end
>> puts sortedWords_array  # print values within 2nd array, which should
>> be in low to high alphabetical order
>>
>> Guidance greatly appreciated.
>
> Cheating...
>
> a = my_word_array
> sorted = []
> while !a.empty?; sorted << a.delete(a.min); end
>
> Todd
>

Although this looks cleaner I think..

sorted << a.delete(a.min) until a.empty?

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