tc-ui-toolkit/lib/VerseCheck/helpers/stringHelpers.js

React components used to develop tools for the desktop app translationCore

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.generateSelection = exports.normalizeString = exports.occurrencesInString = void 0;

/* eslint-disable no-console */

/**
 * @description Function that count occurrences of a substring in a string
 * @param {String} string - The string to search in
 * @param {String} subString - The sub string to search for
 * @returns {Integer} - the count of the occurrences
 * @see http://stackoverflow.com/questions/4009756/how-to-count-string-occurrence-in-string/7924240#7924240
 * modified to fit our use cases, return zero for '' substring, and no use case for overlapping.
 */
var occurrencesInString = function occurrencesInString(string, subString) {
  if (subString.length <= 0) {
    return 0;
  }

  var occurrences = 0,
      position = 0,
      step = subString.length;

  while (position < string.length) {
    position = string.indexOf(subString, position);

    if (position === -1) {
      break;
    }

    ++occurrences;
    position += step;
  }

  return occurrences;
};
/**
 * @description - Function that normalizes a string including whitespace
 * @param {String} string - the string to normalize
 * @preturns {String} - The returned normalized string
 */


exports.occurrencesInString = occurrencesInString;

var normalizeString = function normalizeString(string) {
  string = string.replace(/\s+/g, ' ');
  return string;
};
/**
 * @description - generates a selection object from the selected text, precedingText and whole text
 * @param {String} selectedText - the text that is selected
 * @param {String} precedingText - the text that precedes the selection
 * @param {String} entireText - the text that the selection should be in
 * @return {Object} - the selection object to be used
 */


exports.normalizeString = normalizeString;

var generateSelection = function generateSelection(selectedText, precedingText, entireText) {
  var selection = {}; // response
  // replace more than one contiguous space with a single one since HTML/selection only renders 1

  entireText = normalizeString(entireText); // get the occurrences before this one

  var precedingOccurrences = occurrencesInString(precedingText, selectedText); // calculate this occurrence number by adding it to the preceding ones

  var occurrence = precedingOccurrences + 1; // get the total occurrences from the verse

  var occurrences = occurrencesInString(entireText, selectedText);
  selection = {
    text: selectedText,
    occurrence: occurrence,
    occurrences: occurrences
  };
  return selection;
};

exports.generateSelection = generateSelection;
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