didYouMean-1.2.1.min.js 1.9 KB

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  1. /*
  2. didYouMean.js copyright (c) 2013-2014 Dave Porter.
  3. [Available on GitHub](https://github.com/dcporter/didyoumean.js).
  4. Licensed under the Apache License, Version 2.0 (the "License");
  5. you may not use this file except in compliance with the License.
  6. You may obtain a copy of the License
  7. [here](http://www.apache.org/licenses/LICENSE-2.0).
  8. Unless required by applicable law or agreed to in writing, software
  9. distributed under the License is distributed on an "AS IS" BASIS,
  10. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  11. See the License for the specific language governing permissions and
  12. limitations under the License.
  13. */
  14. (function(){"use strict";function e(t,r,i){if(!t)return null;if(!e.caseSensitive){t=t.toLowerCase()}var s=e.threshold===null?null:e.threshold*t.length,o=e.thresholdAbsolute,u;if(s!==null&&o!==null)u=Math.min(s,o);else if(s!==null)u=s;else if(o!==null)u=o;else u=null;var a,f,l,c,h,p=r.length;for(h=0;h<p;h++){f=r[h];if(i){f=f[i]}if(!f){continue}if(!e.caseSensitive){l=f.toLowerCase()}else{l=f}c=n(t,l,u);if(u===null||c<u){u=c;if(i&&e.returnWinningObject)a=r[h];else a=f;if(e.returnFirstMatch)return a}}return a||e.nullResultValue}function n(e,n,r){r=r||r===0?r:t;var i=e.length;var s=n.length;if(i===0)return Math.min(r+1,s);if(s===0)return Math.min(r+1,i);if(Math.abs(i-s)>r)return r+1;var o=[],u,a,f,l,c;for(u=0;u<=s;u++){o[u]=[u]}for(a=0;a<=i;a++){o[0][a]=a}for(u=1;u<=s;u++){f=t;l=1;if(u>r)l=u-r;c=s+1;if(c>r+u)c=r+u;for(a=1;a<=i;a++){if(a<l||a>c){o[u][a]=r+1}else{if(n.charAt(u-1)===e.charAt(a-1)){o[u][a]=o[u-1][a-1]}else{o[u][a]=Math.min(o[u-1][a-1]+1,Math.min(o[u][a-1]+1,o[u-1][a]+1))}}if(o[u][a]<f)f=o[u][a]}if(f>r)return r+1}return o[s][i]}e.threshold=.4;e.thresholdAbsolute=20;e.caseSensitive=false;e.nullResultValue=null;e.returnWinningObject=null;e.returnFirstMatch=false;if(typeof module!=="undefined"&&module.exports){module.exports=e}else{window.didYouMean=e}var t=Math.pow(2,32)-1})();