[#144186] Re: array of object insert polices — "Pe, Botp" <botp@...>

dave [mailto:dave.m@email.it] wrote:

14 messages 2005/06/01

[#144206] Implementing a Read-Only array — Gavin Kistner <gavin@...>

Right up front, let me say that I realize that I can't prevent

14 messages 2005/06/01

[#144224] Method Chaining Issues — "aartist" <aartist@...>

try this:

28 messages 2005/06/01
[#144231] Re: Method Chaining Issues — "Phrogz" <gavin@...> 2005/06/01

This is a FAQ, though no page on the RubyGarden wiki seems to address

[#144240] Re: Method Chaining Issues — Nikolai Weibull <mailing-lists.ruby-talk@...> 2005/06/01

Phrogz wrote:

[#144230] ternary operator confusion — Belorion <belorion@...>

I don't know if this is "improper" use of the ternary operator, but I

19 messages 2005/06/01
[#144233] Re: ternary operator confusion — "Phrogz" <gavin@...> 2005/06/01

true ? a.push(1) : a.push(2)

[#144257] Re: ternary operator confusion — "Marcel Molina Jr." <marcel@...> 2005/06/01

On Thu, Jun 02, 2005 at 01:40:23AM +0900, Phrogz wrote:

[#144263] Re: ternary operator confusion — Eric Mahurin <eric_mahurin@...> 2005/06/01

--- "Marcel Molina Jr." <marcel@vernix.org> wrote:

[#144453] RubyScript2Exe and GUI toolkits — Erik Veenstra <pan@...>

13 messages 2005/06/03

[#144487] Building a business case for Ruby — Joe Van Dyk <joevandyk@...>

Hi,

29 messages 2005/06/03

[#144535] ruby-dev summary 26128-26222 — Minero Aoki <aamine@...>

Hi all,

11 messages 2005/06/04

[#144579] Package, a future replacement for setup.rb and mkmf.rb — Christian Neukirchen <chneukirchen@...>

29 messages 2005/06/04

[#144672] newbie read.scan (?) question — "Bruce D'Arcus" <bdarcus.lists@...>

Hi,

16 messages 2005/06/06

[#144691] making a duck — Eric Mahurin <eric_mahurin@...>

Regarding duck-typing... Is there an easy way make a "duck"?

27 messages 2005/06/06

[#144867] ruby-wish@ruby-lang.org mailing list — dave <dave.m@...>

19 messages 2005/06/08
[#144870] Re: [PROPOSAL] ruby-wish@ruby-lang.org mailing list — "Robert Klemme" <bob.news@...> 2005/06/08

Austin Ziegler wrote:

[#144890] RubyStuff: The Ruby Shop for Ruby Programmers — James Britt <james_b@...>

Announcing the formal grand opening of Ruby Stuff: The Ruby Shop for

36 messages 2005/06/08

[#144966] python/ruby benchmark. — "\"</script>" <groleo@...>

I took a look at

78 messages 2005/06/09
[#144967] Re: python/ruby benchmark. — gabriele renzi <surrender_it@...> 2005/06/09

"</script> ha scritto:

[#144974] Re: python/ruby benchmark. — Lothar Scholz <mailinglists@...> 2005/06/09

Hello gabriele,

[#144977] Re: python/ruby benchmark. — Kent Sibilev <ksruby@...> 2005/06/09

Java is an order of magnitude faster than Ruby. The development of a

[#144980] Re: python/ruby benchmark. — Lothar Scholz <mailinglists@...> 2005/06/09

Hello Kent,

[#144983] Re: python/ruby benchmark. — "Ryan Leavengood" <mrcode@...> 2005/06/09

Lothar Scholz said:

[#145196] Re: python/ruby benchmark(don't shoot the messenger) — ptkwt@... (Phil Tomson) 2005/06/12

In article <9e7db91105061106485b68d629@mail.gmail.com>,

[#145207] Re: python/ruby benchmark(don't shoot the messenger) — Steven Jenkins <steven.jenkins@...> 2005/06/12

Phil Tomson wrote:

[#145212] Re: python/ruby benchmark(don't shoot the messenger) — Austin Ziegler <halostatue@...> 2005/06/12

On 6/12/05, Steven Jenkins <steven.jenkins@ieee.org> wrote:

[#145219] Re: python/ruby benchmark(don't shoot the messenger) — Steven Jenkins <steven.jenkins@...> 2005/06/12

Austin Ziegler wrote:

[#145223] Re: python/ruby benchmark(don't shoot the messenger) — Austin Ziegler <halostatue@...> 2005/06/12

On 6/12/05, Steven Jenkins <steven.jenkins@ieee.org> wrote:

[#145240] Re: python/ruby benchmark(don't shoot the messenger) — Steven Jenkins <steven.jenkins@...> 2005/06/12

Austin Ziegler wrote:

[#145241] Re: python/ruby benchmark(don't shoot the messenger) — Austin Ziegler <halostatue@...> 2005/06/13

On 6/12/05, Steven Jenkins <steven.jenkins@ieee.org> wrote:

[#145000] RDoc

Hi, I have a question. When I compiled ruby-1.8.2

13 messages 2005/06/09
[#145003] Re: RDoc — Eric Hodel <drbrain@...7.net> 2005/06/09

On 09 Jun 2005, at 13:55, Jesffffas Antonio Sfffe1nchez A. wrote:

[#145238] finding Hash subsets based on key value — "ee" <erik.eide@...>

Hi

17 messages 2005/06/12

[#145304] PDF::Writer 1.0 (version 1.0.1) — Austin Ziegler <halostatue@...>

= PDF::Writer

21 messages 2005/06/13
[#145411] Re: [ANN] PDF::Writer 1.0 (version 1.0.1) — Jason Foreman <threeve.org@...> 2005/06/14

No love from PDF::Writer on Mac OS X 10.4.1. I hope to get this fixed

[#145420] Re: [ANN] PDF::Writer 1.0 (version 1.0.1) — Austin Ziegler <halostatue@...> 2005/06/14

On 6/14/05, Jason Foreman <threeve.org@gmail.com> wrote:

[#145432] Re: [ANN] PDF::Writer 1.0 (version 1.0.1) — Jamis Buck <jamis@37signals.com> 2005/06/15

On Jun 14, 2005, at 5:11 PM, Austin Ziegler wrote:

[#145339] survey: what editor do you use to hack ruby? — Lowell Kirsh <lkirsh@...>

I've been having a tough time getting emacs set up properly with ruby

62 messages 2005/06/14

[#145390] Ruby and recursion (Ackermann benchmark) — ptkwt@... (Phil Tomson)

14 messages 2005/06/14

[#145586] How to make a browser in Ruby Tk — sujeet kumar <sujeetkr@...>

Hi

13 messages 2005/06/16

[#145636] Super-scalar Optimizations — "Phrogz" <gavin@...>

I was looking over the shoulder of a C++ coworker yesterday, when he

14 messages 2005/06/16

[#145677] Truth maintenance system in Ruby — "itsme213" <itsme213@...>

Anyone know of any kind of truth-maintenance system implemented in Ruby (or,

12 messages 2005/06/17

[#145720] Frameless RDoc template ('technology preview') — ES <ruby-ml@...>

Hi!

17 messages 2005/06/17

[#145779] Newbe questions... — "Chuck Brotman" <brotman@...>

In Ruby Is there a prefered (or otherwise elegant) way to do an inner &

17 messages 2005/06/18

[#145790] GC.disable not working? — Eric Mahurin <eric_mahurin@...>

From what I can tell, GC.disable doesn't work. I'm wanting to

37 messages 2005/06/18
[#145822] Re: GC.disable not working? — ts <decoux@...> 2005/06/19

>>>>> "E" == Eric Mahurin <eric_mahurin@yahoo.com> writes:

[#146024] evaluation of ruby — "Franz Hartmann" <porschefranz@...> 2005/06/21

Hello all,

[#145830] preventing instantiation — "R. Mark Volkmann" <mark@...>

What is the recommended way in Ruby to prevent other classes from creating

13 messages 2005/06/19
[#145831] Re: preventing instantiation — Gavri Fernandez <gavri.fernandez@...> 2005/06/19

On 6/19/05, R. Mark Volkmann <mark@ociweb.com> wrote:

[#145879] x==1 vs 1==x — Gavin Kistner <gavin@...>

I'm against _premature_ optimization in theory, but believe that a

19 messages 2005/06/20
[#145880] Re: x==1 vs 1==x — ts <decoux@...> 2005/06/20

>>>>> "G" == Gavin Kistner <gavin@refinery.com> writes:

[#145943] Chess Variants (II) (#36) — James Edward Gray II <james@...>

I don't want to spoil all the fun, in case anyone is still attempting

12 messages 2005/06/20

[#146038] 1. Ruby result: 101 seconds , 2. Java result:9.8 seconds, 3. Perl result:62 seconds — Michael Tan <mtan1232000@...>

Just new to Ruby since last week, running my same functional program on the windows XP(Pentium M1.5G), the Ruby version is 10 times slower than the Java version. The program is to find the prime numbers like 2, 3,5, 7, 11, 13... Are there setup issues? or it is normal?

47 messages 2005/06/21
[#146044] Re: 1. Ruby result: 101 seconds , 2. Java result:9.8 seconds, 3. Perl result:62 seconds — "Florian Frank" <flori@...> 2005/06/21

Michael Tan wrote:

[#146047] Re: 1. Ruby result: 101 seconds , 2. Java result:9.8 seconds, 3. Perl result:62 seconds — Jim Freeze <jim@...> 2005/06/21

* Florian Frank <flori@nixe.ping.de> [2005-06-22 05:40:14 +0900]:

[#146050] Re: 1. Ruby result: 101 seconds , 2. Java result:9.8 seconds, 3. Perl result:62 seconds — "Ryan Leavengood" <mrcode@...> 2005/06/21

Jim Freeze said:

[#146132] Re: 1. Ruby result: 101 seconds , 2. Java result:9.8 seconds, 3. Perl result:62 seconds — "Mark Thomas" <mrt@...> 2005/06/22

Florian Frank wrote:

[#146064] rubyscript2exe — Joe Van Dyk <joevandyk@...>

Hi,

14 messages 2005/06/21

[#146169] spidering a website to build a sitemap — Bill Guindon <agorilla@...>

I need to spider a site and build a sitemap for it. I've looked

17 messages 2005/06/22

[#146178] traits-0.4.0 - the coffee release — "Ara.T.Howard" <Ara.T.Howard@...>

15 messages 2005/06/22

[#146328] string to Class object — "R. Mark Volkmann" <mark@...>

How can I create a Class object from a String that contains the name of a class?

15 messages 2005/06/24

[#146380] Application-0.6.0 — Jim Freeze <jim@...>

CommandLine - Application and OptionParser

22 messages 2005/06/24

[#146391] ASP.NET vs Ruby on Rails — Stephen Kellett <snail@...>

HI Folks,

21 messages 2005/06/24
[#146457] Re: ASP.NET vs Ruby on Rails — "Dema" <demetriusnunes@...> 2005/06/25

Hi Stephen,

[#146425] speeding up Process.detach frequency — Joe Van Dyk <joevandyk@...>

Is there any way to speed up Process.detach? The ri documentation for

14 messages 2005/06/25

[#146483] I saw the beauty of Ruby Re: 1. Ruby result: 101 seconds , 2. Java result:9.8 seconds, 3. Perl result:62 seconds — Michael Tan <mtan1232000@...>

22 messages 2005/06/26
[#146504] Re: I saw the beauty of Ruby Re: 1. Ruby result: 101 seconds , 2. Java result:9.8 seconds, 3. Perl result:62 seconds — Brad Wilson <dotnetguy@...> 2005/06/26

For comparison, the port of your code to (less than elegant) C#.

[#146515] Re: I saw the beauty of Ruby Re: 1. Ruby result: 101 seconds , 2. Java result:9.8 seconds, 3. Perl result:62 seconds — Florian Gro<florgro@...> 2005/06/26

Brad Wilson wrote:

[#146485] Re: I saw the beauty of Ruby Re: 1. Ruby result: 101 seconds , 2. Java result:9.8 seconds, 3. Perl result:62 seconds — "Florian Frank" <flori@...> 2005/06/26

Michael Tan wrote:

[#146491] What do you want to see in a Sparklines Library? — Daniel Nugent <nugend@...>

This is sort of an interest gauging/feature request poll.

17 messages 2005/06/26
[#146506] Re: What do you want to see in a Sparklines Library? — Daniel Amelang <daniel.amelang@...> 2005/06/26

See what's already been done before you get too far.

[#146517] Re: What do you want to see in a Sparklines Library? — Daniel Nugent <nugend@...> 2005/06/26

Yup, seen the stuff on RedHanded, I was planning on writing a little

[#146562] RCM - A Ruby Configuration Management System — Michael Neumann <mneumann@...>

Hi all,

22 messages 2005/06/27

[#146630] yield does not take a block — Daniel Brockman <daniel@...>

Under ruby 1.9.0 (2005-06-23) [i386-linux], irb 0.9.5(05/04/13),

48 messages 2005/06/28
[#146666] Re: yield does not take a block — Daniel Brockman <daniel@...> 2005/06/28

Yukihiro Matsumoto <matz@ruby-lang.org> writes:

[#146680] Re: yield does not take a block — Yukihiro Matsumoto <matz@...> 2005/06/28

Hi,

[#146684] Re: yield does not take a block — Eric Mahurin <eric_mahurin@...> 2005/06/28

[#146779] Re: yield does not take a block — "Adam P. Jenkins" <thorin@...> 2005/06/29

Eric Mahurin wrote:

[#146700] Anything in new Eclipse for Rubyists? — "jfry" <jeff.fry@...>

Hey there, I know that a number of folks on the list use Eclipse as

14 messages 2005/06/28

[#146773] Programmers Contest: Fit pictures on a page — hicinbothem@...

GLOSSY: The Summer Programmer Of The Month Contest is underway!

18 messages 2005/06/29

[#146815] shift vs. slice!(0) and others — Eric Mahurin <eric_mahurin@...>

I just did some benchmarking of various ways to insert/delete

12 messages 2005/06/29

Implementing a Read-Only array

From: Gavin Kistner <gavin@...>
Date: 2005-06-01 13:39:31 UTC
List: ruby-talk #144206
Right up front, let me say that I realize that I can't prevent  
modifications to objects referenced by my array - that's OK.

SUMMARY
My desire is to create an Array which is read-only from the outside,  
but which my class can modify internally. #freeze is not an option,  
nor is #dup.


BACKGROUND
The goal here is to mimic the NodeList class in the W3C DOM model. A  
NodeList is an 'array' of items returned from various methods, which  
is immutable by the external consumer but which is also 'live' -  
references to the returned list of nodes will be updated as the DOM  
tree is modified.


In my implementation, I'm creating an array that provides an ordered  
list of children for each Node. Each Node also has #previous_sibling,  
#next_sibling, #first_child, #last_child, and #parent_node  
attributes, which must be properly kept in-sync.

A really nice implementation would cause direct manipulation of the  
Array to update all associated attributes. In the end I may do that.  
However, for now, what I want is to return an array which will not  
let the user modify the array itself, but which my own class can  
modify when necessary.


The code I have currently follows (minus comments and some edge  
checking, for terseness). What I have works, but I'm wondering if  
there is a better way than just aliasing the methods. (I know that  
#instance_eval and the like means that I cannot truly lock down a  
class, but security-through-obscurity seems less than ideal.)


class ReadOnlyArray < Array
     alias_method :'__ro_<<', :'<<' #:nodoc:
     alias_method :__ro_insert, :insert #:nodoc:
     alias_method :__ro_delete_at, :delete_at #:nodoc:
     affectors = %w| << []= clear concat delete delete_at delete_if  
fill flatten! insert map! pack pop push reject! replace reverse!  
shift slice! sort! uniq! unshift |
     affectors.each{ |name| undef_method name }
end

module OrderedTreeNode
   attr_reader :next_sibling, :previous_sibling, :parent_node
   attr_reader :first_child, :last_child, :child_nodes

   def insert_before( new_child, ref_child=nil )
     kids = child_nodes

     #Find the index of the ref_child, if given, or use the end
     dest_slot = ref_child ? kids.index( ref_child ) : kids.length

     #Shove the child into the array and update its pointers
     kids.__ro_insert( dest_slot, new_child )
     new_child.previous_sibling = kids[ dest_slot - 1 ]
     new_child.next_sibling = kids[ dest_slot + 1 ]
     new_child.parent_node = self

     new_child.previous_sibling.next_sibling = new_child if  
new_child.previous_sibling
     new_child.next_sibling.previous_sibling = new_child if  
new_child.next_sibling

     new_child
   end

   def child_nodes #:nodoc:
     @__phrogzdomorderedtreenode_childnodes ||= ReadOnlyArray.new
   end

   #:stopdoc:
   protected
     attr_writer :parent_node, :next_sibling, :previous_sibling
     attr_writer :first_child, :last_child
   #:startdoc:

end



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