[#93964] perl6 grammar rules in ruby — Charles Comstock <cc1@...>

Has anyone taken a look at the idea of having embedded grammars in ruby

21 messages 2004/03/01

[#94023] Why's (Poignant) Guide to Ruby, Chapter Four: Little Leaves of Code — why the lucky stiff <ruby-talk@...>

Just wanted everyone to know that Chapter Four of the (Poignant) Guide

15 messages 2004/03/01

[#94037] Rubyx OS (Ruby oriented linux distro) — Andrew Walrond <andrew@...>

I am pleased to announce the first public release of Rubyx, codename

39 messages 2004/03/02

[#94062] pickaxe with pics? — Dick Davies <rasputnik@...>

17 messages 2004/03/02

[#94068] dynamic assignment of instance variables — gv@... (Gerard A.W. Vreeswijk)

$ cat try.rb

19 messages 2004/03/02

[#94110] why are Hashes so unsorted? what's your solution? — Ruby Baby <ruby@...>

I try to avoid questions like "Why doesn't Ruby do what ___ does?"

14 messages 2004/03/03

[#94144] Mozilla gets support for other client-side languages in the future, how about Ruby? — Erik Terpstra <erik@...>

Interesting slides:

9 messages 2004/03/03

[#94190] rescue inside block -> syntax error — Simon Strandgaard <neoneye@...>

While reading this message:

15 messages 2004/03/04

[#94424] random range — Charles Comstock <cc1@...>

Why doesn't rand take an integer range and then generate a random number

23 messages 2004/03/06
[#94432] Re: random range — Hal Fulton <hal9000@...> 2004/03/06

Charles Comstock wrote:

[#94434] Re: random range — Joel VanderWerf <vjoel@...> 2004/03/06

Hal Fulton wrote:

[#94436] Re: random range — "David A. Black" <dblack@...> 2004/03/06

Hi --

[#94487] Looking for HTML templating system — Andreas Schwarz <usenet@...>

I am looking for a templating system for my forum

19 messages 2004/03/07

[#94517] proposal: class<<obj to invoke extend_object — Simon Strandgaard <neoneye@...>

'obj.extend' and 'class<<obj' are close cousins..

22 messages 2004/03/07

[#94612] RedCloth 2.0.2 -- A Textile Humane Web Text Generator — why the lucky stiff <ruby-talk@...>

For your immediate perusal and swift renouncement:

10 messages 2004/03/09

[#94672] saving array — mopthisandthat@... (Phidippus)

After I do bunch of computations and create a huge array with bunch of

18 messages 2004/03/10

[#94686] Possibility of 2nd edition of _The Ruby Way_ — Hal Fulton <hal9000@...>

Hello, all.

17 messages 2004/03/10

[#94760] convincing a webhost to support ruby — Mark Hubbart <discord@...>

Hi all,

15 messages 2004/03/11

[#94813] Jruby 0.7.0 — Thomas E Enebo <enebo@...>

20 messages 2004/03/12
[#94815] Re: [ANN] Jruby 0.7.0 — gabriele renzi <surrender_it@...1.vip.ukl.yahoo.com> 2004/03/12

il Sat, 13 Mar 2004 02:33:49 +0900, Thomas E Enebo <enebo@acm.org> ha

[#94817] Re: [ANN] Jruby 0.7.0 — Thomas E Enebo <enebo@...> 2004/03/12

On Sat, 13 Mar 2004, gabriele renzi defenestrated me:

[#94935] RubyGems 0.2.0 — Chad Fowler <chad@...>

The first public release of RubyGems (http://rubygems.rubyforge.org)

26 messages 2004/03/14

[#94985] GUI testing on unix — Simon Strandgaard <neoneye@...>

I am curious to if there exists any GUI testing packages for unix.

17 messages 2004/03/16

[#94998] RAA trouble and maintenance — "NAKAMURA, Hiroshi" <nahi@...>

Hi,

14 messages 2004/03/16

[#95014] RAA - So much is broken — Lothar Scholz <mailinglists@...>

Hello,

15 messages 2004/03/16

[#95060] YAML tutorial — Matt Lawrence <matt@...>

Ok, I am so not a Ruby wizard. In fact, I don't do much development at

15 messages 2004/03/17

[#95098] groovy — David Garamond <lists@...6.isreserved.com>

Groovy, a scripting language targeted for JVM, was mentioned in Slashdot

14 messages 2004/03/17

[#95155] Installer packages for MacOSX — Mark Hubbart <discord@...>

Hi, all

18 messages 2004/03/17

[#95190] Thinking about a date-matching algorithm... — Hal Fulton <hal9000@...>

I did a little swapping of ideas with dblack on this. Now I'm

22 messages 2004/03/18

[#95200] Log4r 1.0.5 now with RubyGems option — Leon Torres <leon@...>

Greetings, I'm pleased to announce the release of Log4r 1.0.5. The

11 messages 2004/03/18

[#95230] Ruby and Mozilla — paul vudmaska <paul@...>

--- Simon Strandgaard <neoneye@adslhome.dk <http://us.f104.mail.yahoo.com/ym/Compose?To=neoneye@adslhome.dk&YY=90525&order=down&sort=date&pos=0&view=a&head=b>> wrote:

12 messages 2004/03/18

[#95290] calling outer-scope method of same name — "Bill Kelly" <billk@...>

Hi all!

16 messages 2004/03/18
[#95292] Re: calling outer-scope method of same name — "David A. Black" <dblack@...> 2004/03/18

Hi --

[#95340] Kwartz (2004-03-19) released — Makoto Kuwata <kwa@...>

Hi folks,

31 messages 2004/03/19
[#95367] Re: [ANN] Kwartz (2004-03-19) released — Andreas Schwarz <usenet@...> 2004/03/19

Hi,

[#95405] Re: [ANN] Kwartz (2004-03-19) released — Andreas Schwarz <usenet@...> 2004/03/19

Makoto Kuwata wrote:

[#95412] Re: [ANN] Kwartz (2004-03-19) released — Makoto Kuwata <kwa@...> 2004/03/19

Andreas,

[#95453] Re: [ANN] Kwartz (2004-03-19) released — Andreas Schwarz <usenet@...> 2004/03/20

Makoto Kuwata wrote:

[#95484] Re: [ANN] Kwartz (2004-03-19) released — Makoto Kuwata <kwa@...> 2004/03/21

[#95490] Re: [ANN] Kwartz (2004-03-19) released — Thomas Fini Hansen <beast@...> 2004/03/21

On Sun, Mar 21, 2004 at 11:39:26AM +0900, Makoto Kuwata wrote:

[#95518] Re: [ANN] Kwartz (2004-03-19) released — Andreas Schwarz <usenet@...> 2004/03/21

Makoto Kuwata wrote:

[#95553] Re: [ANN] Kwartz (2004-03-19) released — Andreas Schwarz <usenet@...> 2004/03/22

Makoto Kuwata wrote:

[#95386] Can $LOAD_PATH be relative? — ptkwt@... (Phil Tomson)

24 messages 2004/03/19
[#95389] Re: Can $LOAD_PATH be relative? — ptkwt@... (Phil Tomson) 2004/03/19

In article <wsqk71gd188.fsf@io.com>, Jim Menard <jimm@io.com> wrote:

[#95398] Re: Can $LOAD_PATH be relative? — Patrick Bennett <patrick.bennett@...> 2004/03/19

Phil Tomson wrote:

[#95400] Re: Can $LOAD_PATH be relative? — "David A. Black" <dblack@...> 2004/03/19

Hi --

[#95403] Re: Can $LOAD_PATH be relative? — Patrick Bennett <patrick.bennett@...> 2004/03/19

[#95434] converting javascript to ruby (nested methods) — yvon.thoravalNO-SPAM@... (Yvon Thoraval)

i have a script written in javascript and want to translate it into ruby

10 messages 2004/03/20

[#95517] What to gem? — Robert Feldt <feldt@...>

Hi,

14 messages 2004/03/21

[#95560] Need some advice on PickAxe II — Dave Thomas <dave@...>

Folks:

74 messages 2004/03/22

[#95636] Tempfile consuming a lot of memory — thomass@... (Thomas)

I'm using a lot of Tempfile's and I have been made aware that they

17 messages 2004/03/23

[#95693] proposal - enforce lower_case for variables and methods — Simon Strandgaard <neoneye@...>

Ruby does already enforce CamelCase for class/modules.

29 messages 2004/03/24

[#95769] File.stat.size errors with file sizes over 2Gigs. — walter@...

File.stat('file_name').size returns erroneous file sizes when the

16 messages 2004/03/24

[#95782] Quick Introduction to RubyGems — Gavin Sinclair <gsinclair@...>

Hi folks,

17 messages 2004/03/24

[#95875] Errors with "make" step, while compiling ruby under AIX 5.2 — Ruby Ruby <ruby4lover@...>

I am wanted to install ruby 1.8.1 under AIX 5.2. During the installation, while doing the "make" part of it, the process abruptily ended with the following errors:

15 messages 2004/03/25
[#95883] Re: Errors with "make" step, while compiling ruby under AIX 5.2 — nobu.nokada@... 2004/03/26

Hi,

[#95918] Re: Errors with "make" step, while compiling ruby under AIX 5.2 — Ruby Ruby <ruby4lover@...> 2004/03/26

I am sorry to insist but this is important to me.

[#95960] Status of AOP in Ruby — Markus Jais <markusjais@...>

Hello

22 messages 2004/03/27

[#95984] deciding between ruby and python — "Serve Lau" <ik@...>

I'm trying to decide to learn either python or ruby. Are there fundamental

119 messages 2004/03/28
[#96006] Re: deciding between ruby and python — klausm0762@... (Klaus Momberger) 2004/03/28

"Serve Lau" <ik@detongiser.com> wrote in message news:<106dlen5mr97q76@corp.supernews.com>...

[#96566] Re: deciding between ruby and python — Ville Vainio <ville@...> 2004/04/05

[#96503] Re: deciding between ruby and python — Ville Vainio <ville@...> 2004/04/04

>>>>> "James" == James Britt <jamesUNDERBARb@neurogami.com> writes:

[#96508] Re: deciding between ruby and python — Dan Doel <djd15@...> 2004/04/04

As you say, this whole thread has been done many times before.

[#96691] Re: deciding between ruby and python — gabriele renzi <surrender_it@...1.vip.ukl.yahoo.com> 2004/04/07

il Wed, 07 Apr 2004 05:35:39 GMT, dagbrown@LART.ca (Dave Brown) ha

[#95992] Madeleine 0.6 — Anders Bengtsson <ndrsbngtssn@...>

23 messages 2004/03/28

Re: Thinking about a date-matching algorithm...

From: mlipper@...
Date: 2004-03-18 18:01:44 UTC
List: ruby-talk #95251
Hey Jim, 

Is ECal going to be a public project? Are you welcoming acolytes? Runt works
just fine (for an 0.0.6 release), but I've created it mostly as a way to
learn Ruby; I'd gladly merge/scrap it for an opportunity to learn from a
more experienced Rubyist.

Matt

-----Original Message-----
From: Jim Weirich [mailto:jim@weirichhouse.org]
Sent: Thursday, March 18, 2004 12:49 PM
To: ruby-talk@ruby-lang.org
Subject: Re: Thinking about a date-matching algorithm...



Hal Fulton said:
> I did a little swapping of ideas with dblack on this. Now I'm
> opening discussion to anyone interested.
>
> I'm writing a little to-do manager (chiefly for my own use).
>
> I want to allow recurring tasks. Some of these will be simple, like
> "Every Monday." Others will be more complex, like "Every 2nd and 4th
> Friday." Some might not even be based on weeks or months at all, but
> might be like: "Every ten days, no matter what."
>
> There'd also be an option to give advance warning (N days) on each
> event.
>
> So the question becomes: Given a date (typically "today") and a list
> of recurring tasks, how do I determine which ones need to be displayed?

What a timely question!

Our local XP users group is addressing the exact same issue.  We are
developing a schedule program for reserving rooms at Children's Hospital. 
We need to deal with issues like "Schedule this room every third monday of
the month".

We decided to use Martin Fowler's Temporal Expressions pattern.  You can
more about that here: http://martinfowler.com/apsupp/recurring.pdf

To summarize, you can create arbitrarily complex temporal expressions by
using a small set of primitives (e.g. YearInRange, DayOfMonth) and a
simple set of combining rules (Union, Intersection, Difference).

For example, you can create simple expressions ...

   # Match the third Monday of the month
   days = TExp::WeekDayInMonth.new(3, TExp::MONDAY)

   # Match any date in June thru August (of any year)
   range = TExp::RangeEachYear.by_month(6,9)

And combine them into complex expressions ...

   # Match any 3rd Monday in June through August
   dates = TExp::Union.new(days, range)

   # Test against specific days
   dates.includes?(Date.new(2004, 6, 21)  # => true
   dates.includes?(Date.new(2004, 7, 19)  # => true
   dates.includes?(Date.new(2004, 6, 14)  # => false, not 3rd Monday
   dates.includes?(Date.new(2004, 5, 24)  # => false, not in Jun-Aug

Does this make sense?  Read the PDF for all the gory details.

And you are in luck.  There are at least two Temporal Expression libraries
in Ruby.  I have one that is part of the ECal project on RubyForge (I
haven't published any files yet tho ... but I can if there is a need). 
The other one is Runt (http://runt.rubyforge.org/) by Matthew Lipper,
which is also on RubyForge.

-- 
-- Jim Weirich     jim@weirichhouse.org    http://onestepback.org
-----------------------------------------------------------------
"Beware of bugs in the above code; I have only proved it correct,
not tried it." -- Donald Knuth (in a memo to Peter van Emde Boas)


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