Re: Alternative to ~= for inequality?

[Ross Bencina <rossb-lists@...>]

On 9/02/2013 12:50 AM, Joseph Manning wrote:
> > > Appeal to Lua developers: is there any chance of at least adding != as
> > > >>an alternative in the next release?
>     Nooooooo!  Please don't Perl-ise it.

"Perl-ise" o.O You gotta be kidding. That's the only language you know 
with != ?


For some light relief I thought I'd go through the TIOBE top 20 looking 
at inequality operators (info sourced from [2][3] where not otherwise 
indicated ):

!=

C, Java, Objective-C, C++, C#, PHP [4], Python [5], Perl [6], JavaScript 
[7], Ruby, Bash


<>

Visual Basic, VB.NET [8], Pascal, Delphi/Object Pascal[10], Python 
(deep) [5]


~=

Smalltalk, MATLAB, Lua


/=

Lisp [9], Ada


Alex wrote:
> Programming language design is not fashion.

Notation is not about obscuritansim either.


Cheers,

Ross.


[1] http://www.tiobe.com/index.php/content/paperinfo/tpci/index.html
[2] http://en.wikipedia.org/wiki/Relational_operator
[3] http://rigaux.org/language-study/syntax-across-languages-per-language/

[4] PHP also has !== 
http://rigaux.org/language-study/syntax-across-languages-per-language/PHP.html#2
[5] Python also has <> for deep inequality 
http://rigaux.org/language-study/syntax-across-languages-per-language/Python.html
[6] Perl 6 also has !== 
http://rigaux.org/language-study/syntax-across-languages-per-language/Perl6.html
[7] === and !== differ from == and != when the objects' type differ 
http://rigaux.org/language-study/syntax-across-languages-per-language/JavaScript.html#1
[8] http://msdn.microsoft.com/en-us/library/aa711633(v=vs.71).aspx
[9] 
http://www.gnu.org/software/emacs/manual/html_node/elisp/Comparison-of-Numbers.html
[10] http://library.thinkquest.org/C006657/delphi/operators_in_delphi.htm