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

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

'use strict';

function pipeline(str, normalize2, split, _collapse) {
  if (str) {
    if (normalize2) {
      str = replace(
        str,
        /** @type {Array<string|RegExp>} */
        normalize2
      );
    }
    if (this.matcher) {
      str = replace(str, this.matcher);
    }
    if (this.stemmer && str.length > 1) {
      str = replace(str, this.stemmer);
    }
    if (_collapse && str.length > 1) {
      str = collapse(str);
    }
    if (split || split === "") {
      const words = str.split(
        /** @type {string|RegExp} */
        split
      );
      return this.filter ? filter(words, this.filter) : words;
    }
  }
  return str;
}
const regex_whitespace = /[\p{Z}\p{S}\p{P}\p{C}]+/u;
const regex_normalize = /[\u0300-\u036f'-]/gu;
function normalize(str) {
  if (str.normalize) {
    str = str.normalize("NFD").replace(regex_normalize, "");
  }
  return str;
}
function replace(str, regexp) {
  for (let i = 0, len = regexp.length; i < len; i += 2) {
    str = str.replace(regexp[i], regexp[i + 1]);
    if (!str) {
      break;
    }
  }
  return str;
}
function regex(str) {
  return new RegExp(str, "g");
}
function collapse(string) {
  let final = "";
  let prev = "";
  for (let i = 0, len = string.length, char; i < len; i++) {
    if ((char = string[i]) !== prev) {
      final += prev = char;
    }
  }
  return final;
}
function filter(words, map) {
  const length = words.length;
  const filtered = [];
  for (let i = 0, count = 0; i < length; i++) {
    const word = words[i];
    if (word && !map[word]) {
      filtered[count++] = word;
    }
  }
  return filtered;
}

exports.collapse = collapse;
exports.filter = filter;
exports.normalize = normalize;
exports.pipeline = pipeline;
exports.regex = regex;
exports.regex_whitespace = regex_whitespace;
exports.replace = replace;