atriusmaps-node-sdk/dist/cjs/plugins/searchService/src/utils.js

This project provides an API to Atrius Personal Wayfinder maps within a Node environment. See the README.md for more information

'use strict';

var FlexSearch = require('flexsearch');
var simple = require('./flexsearchExports/simple.js');

const NON_ASCII_LANGUAGES = ['ko', 'ja', 'zh-Hans', 'zh-Hant'];

const getFlexSearchInstance = ({ lang, type = 'standard' }) => {
  const options = {
    tokenize: 'reverse',
    rtl: lang === 'ar', // only for arabic
    stemmer: {
      s: '',
      es: '',
      ies: 'y'
    },
    encode: simple.encode
  };

  // Use the full tokenizer for non-ASCII languages and for standard searching
  // but use "forward" for typeahead
  if (NON_ASCII_LANGUAGES.includes(lang))
    options.tokenize = 'full';

  return new FlexSearch.Index(options)
};

exports.getFlexSearchInstance = getFlexSearchInstance;