Feature #6242: Ruby should support lists

• Status: Rejected
• Assignee: -
• Target version: 2.0.0

[shugo (Shugo Maeda)]

I've heard that Ruby is a LISP.
LISP stands for "LISt Processing."
Hence, Ruby should support lists.

I've attached a patch to add the classes List and Cons, and the cons operator `:::'.

Example:

S[1,2,3].inject(:+)
=> 6
S[1,2,3]
=> S[1, 2, 3]
0 ::: S[1,2,3]
=> S[0, 1, 2, 3]
0 ::: 1 ::: 2 ::: 3 ::: nil
=> S[0, 1, 2, 3]
S[1,2,3].inject(:+)
=> 6

[shugo (Shugo Maeda)]

• File list2.diff list2.diff added

Updated the patch to evaluate x ::: y' as y.:::(x)', not `x.:::(y)'.

[shugo (Shugo Maeda)]

• File list3.diff list3.diff added

Updated the patch to add methods: foldl, foldr, +, flatten/concat, map, flat_map/concat_map,
filter, length/size, sum, reverse.

[drbrain (Eric Hodel)]

I have heard Ruby is a LISP too:

http://www.jwz.org/blog/2012/03/haters-gonna-hate-tail-call-optimization/#comment-103386

[shugo (Shugo Maeda)]

drbrain (Eric Hodel) wrote:

I have heard Ruby is a LISP too:

http://www.jwz.org/blog/2012/03/haters-gonna-hate-tail-call-optimization/#comment-103386

Thanks for the information. I forgot to propose macros.

But the following comment reminded me that Ruby was originally Smalltalk, not a LISP.

http://www.jwz.org/blog/2012/03/haters-gonna-hate-tail-call-optimization/#comment-103406

I'm afraid this issue might be rejected.

[xds2000 (deshi xiao)]

Hi,shugo
What benefits of the proposed lisp changed? I am very confuse this LISP list feature. your sample is very similar with native ruby Hash in my options.

[drbrain (Eric Hodel)]

shugo (Shugo Maeda) wrote:

But the following comment reminded me that Ruby was originally Smalltalk, not a LISP.

http://www.jwz.org/blog/2012/03/haters-gonna-hate-tail-call-optimization/#comment-103406

I'm afraid this issue might be rejected.

Maybe we should propose a free ":" after method names for keyword arguments in a separate issue, like:

open: "file.txt", mode: "r+", encoding: Encoding::UTF_8 do |io|
# …
end

Then we can have the best of LISP and Smalltalk

[shugo (Shugo Maeda)]

xds2000 (deshi xiao) wrote:

Hi,shugo
What benefits of the proposed lisp changed? I am very confuse this LISP list feature. your sample is very similar with native ruby Hash in my options.

　 ∧,,∧
　(,,・∀・) You should say "Array", not "Hash"!
～(_ｕ,ｕﾉ

• File noname noname added

On Mon, Apr 02, 2012 at 09:14:30AM +0900, xds2000 (deshi xiao) wrote:

Issue #6242 has been updated by xds2000 (deshi xiao).

Hi,shugo
What benefits of the proposed lisp changed? I am very confuse this LISP list feature. your sample is very similar with native ruby Hash in my options.

Hi, this is a joke ticket for April fool's day. Don't take it too
seriously! :-)

https://img.skitch.com/20120402-bt88qqb8jitx92kqyuq4yh4rdx.jpg

--
Aaron Patterson
http://tenderlovemaking.com/

• File noname noname added

On Mon, Apr 02, 2012 at 10:56:47AM +0900, shugo (Shugo Maeda) wrote:

Issue #6242 has been updated by shugo (Shugo Maeda).

xds2000 (deshi xiao) wrote:

Hi,shugo
What benefits of the proposed lisp changed? I am very confuse this LISP list feature. your sample is very similar with native ruby Hash in my options.

　 ∧,,∧
　(,,・∀・) You should say "Array", not "Hash"!
～(_ｕ,ｕﾉ

(ノಠ益ಠ)ノ彡┻━┻

--
Aaron Patterson
http://tenderlovemaking.com/

[spatulasnout (B Kelly)]

shugo (Shugo Maeda) wrote:

But the following comment reminded me that Ruby was originally Smalltalk, not a LISP.

http://www.jwz.org/blog/2012/03/haters-gonna-hate-tail-call-optimization/#comment-103406

I used to think so too, until I saw this:

http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/336646

Clearly Ruby has been a stealth-Lisp all along.

:)

[jballanc (Joshua Ballanco)]

On Sunday, April 1, 2012 at 10:40 PM, Bill Kelly wrote:

shugo (Shugo Maeda) wrote:

But the following comment reminded me that Ruby was originally Smalltalk, not a LISP.

http://www.jwz.org/blog/2012/03/haters-gonna-hate-tail-call-optimization/#comment-103406

I used to think so too, until I saw this:

http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/336646

Clearly Ruby has been a stealth-Lisp all along.

Ah! Our old friend Pascal… I remember him well. I ran across him not to long ago. Seems he's moved on to Lua now: http://article.gmane.org/gmane.comp.lang.lua.general/81364/match=

:)

[mame (Yusuke Endoh)]

• Status changed from Open to Rejected

April fools' day ended. Thanks.

--
Yusuke Endoh [e-mail]

[jamesw (James Owen)]

even i guess so Ruby is a LISP

http://www.leatherfads.com/leather-jacket.aspx

[sumit (sumit ghosh)]

I doubt that ruby is LISP.
http://www.ifeel.edu.in

[jasonsmith (jason smith)]

List processing is a draw back??
http://www.venkotech.com

[rohansoni619 (Rohan Soni)]

• File jaro-1.jpg jaro-1.jpg added

I think ruby is a LISP.
http://www.jaro.in/international-MBA-1-year.html

[huma10 (huma mustqeem)]

jamesw (James Owen) wrote:

even i guess so Ruby is a LISP

http://www.leatherfads.com/leather-jacket.aspx

Yes agree with you
https://leatherbaba.com/genuine-leather-motorcycle-jacket

[jacketskingdom (Jackets Kingdom)]

i agree with you and see more about punk clothing.
https://jacketskingdom.com/collections/punk-leather-jacket