hyperformula/es/NumberLiteralHelper.mjs

HyperFormula is a JavaScript engine for efficient processing of spreadsheet-like data and formulas

/**
 * @license
 * Copyright (c) 2025 Handsoncode. All rights reserved.
 */
export class NumberLiteralHelper {
  constructor(config) {
    this.config = config;
    const thousandSeparator = this.config.thousandSeparator === '.' ? `\\${this.config.thousandSeparator}` : this.config.thousandSeparator;
    const decimalSeparator = this.config.decimalSeparator === '.' ? `\\${this.config.decimalSeparator}` : this.config.decimalSeparator;
    this.numberPattern = new RegExp(`^([+-]?((${decimalSeparator}\\d+)|(\\d+(${thousandSeparator}\\d{3,})*(${decimalSeparator}\\d*)?)))(e[+-]?\\d+)?$`);
    this.allThousandSeparatorsRegex = new RegExp(`${thousandSeparator}`, 'g');
  }
  numericStringToMaybeNumber(input) {
    if (this.numberPattern.test(input)) {
      const num = this.numericStringToNumber(input);
      if (isNaN(num)) {
        return undefined;
      }
      return num;
    }
    return undefined;
  }
  numericStringToNumber(input) {
    const normalized = input.replace(this.allThousandSeparatorsRegex, '').replace(this.config.decimalSeparator, '.');
    return Number(normalized);
  }
}