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@Prinzhorn
Forked from 140bytes/LICENSE.txt
Created October 3, 2011 08:50
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American Soundex

140byt.es

A tweet-sized, fork-to-play, community-curated collection of JavaScript.

How to play

  1. Click the Fork button above to fork this gist.
  2. Modify all the files to according to the rules below.
  3. Save your entry and tweet it up!

Rules

All entries must exist in an index.js file, whose contents are

  1. a valid Javascript function expression, that
  2. optionally self-executes,
  3. contains no more than 140 bytes, and
  4. does not pollute global scope.

All entries must also be licensed under the MIT license.

For more information

The 140byt.es site hasn't launched yet, but for now follow @140bytes on Twitter.

140byt.es is brought to you by Jed Schmidt. It was inspired by work from Thomas Fuchs and Dustin Diaz.

function(){
/* Rules:
(1) anonymous function // make sure
(2) may be self-executing // to annotate
(3) <=140 bytes // your code
(4) no globals // so everyone
(5) MIT license // can learn
(6) have a good time! // from it!
*/}
function(){/*Rules: (1) anonymous function (2) may be self-executing (3) <=140 bytes (4) no globals (5) MIT license (6) have a good time!*/}
Copyright (c) 2011 YOUR_NAME_HERE, YOUR_URL_HERE
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
{
// [REQUIRED] A name for your library.
// This must match /^[a-z_]\w*$/i
"name": "140bytes",
// [OPTIONAL] A description of your library, phrased as a verb predicate.
// The gist description is used by default.
"description": "Explain the 140byt.es rules."
// [OPTIONAL] Up to 5 keywords used for indexing.
"keywords": [
"140bytes",
"master",
"rules"
]
}
@peterjaric
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I just tried your example ('Robert'), but I think I managed to remove 2 bytes (haha, not quite enough) by moving the regex object into the for loop:

var myFunction = function(a,b,c){for(c in b={aehiouwy:"",bfpv:1,cgjkqsxz:2,dt:3,l:4,mn:5,r:6,"]|(\d)\1+|[":"$1"})a=a[0]+a.substr(1).replace(RegExp("["+c+"]","g"),b[c])+0;return a.substr(0,4)};

@Prinzhorn
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Author

Good idea. Will commit.
But you removed one of the two backslashes in the regex ("\d" and "\1"). They are needed. I will add a test case for that.

Edit: I guess GitHub removed them, just as in my comment. Maybe we should use the appropriate Markdown for code in future.

@p01
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p01 commented Oct 3, 2011

164 bytes using a LUS ( Look Up String :p )

function(s,i,j,r){s=s.toUpperCase();for(r=s[i=0];j=s.charCodeAt(++i);)r+=+'1230120022455012623010202'[j-66]||'';return(r.replace(/(\d)\1+/g,'$1')+'000').slice(0,4)}

@Prinzhorn
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Looks interesting.
Maybe you should fork my gist so we can golf on two courses, because both approaches seem fundamentally different. And don't forget the "annotated.js" file :-D

Edit: One more thing. The algorithm says "Two adjacent letters with the same number are coded as a single number.". I thought "555" should get "5" but obviously "55" is correct. So we both can strip the plus sign in our regex.

Edit2: LUS ftw!

@Prinzhorn
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What was the idea behind "toUpperCase"? Remove it and subtract 98 instead and BAM 146 bytes.

@p01
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p01 commented Oct 3, 2011

I wanted to make my function case insensitive but, yes this is Spa^W140bytes and surely I can get away with that. Thanks

@Prinzhorn
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136 bytes

function(s,i,j,r){for(r=s[i=0];j=s.charCodeAt(++i);)r+=s[i]!=s[i-1]&&+'1230120022455012623010202'[j-98]||'';return(r+'000').slice(0,4)}

@p01
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p01 commented Oct 3, 2011

:) That was fast! Nice move getting rid of the replace(...)

@peterjaric
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A little too late (things have moved on, I see), but for the record: I did not intend to remove the backslashes. It was probably a copy-and-paste error. Sorry about that!

@sylvinus
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sylvinus commented Oct 5, 2011

I got it down to 133 : https://gist.github.com/1263293

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