write-excel-file/modules/xml/escapeXmlCharacters.js

Write simple `*.xlsx` files in a browser or Node.js

/**
 * Escapes text for XML: replaces ">" with ">", etc.
 * https://en.wikipedia.org/wiki/Character_encodings_in_HTML#HTML_character_references
 * @param  {string} string
 * @param  {boolean} [options.attribute]
 * @return {string}
 */
export default function escapeXmlCharacters(string, _ref) {
  var attribute = _ref.attribute;
  // By default, "&", "<" and ">" characters should be escaped:
  //
  // The ampersand character (&) and the left angle bracket (<) must not appear
  // in their literal form, except when used as markup delimiters, or within a comment,
  // a processing instruction, or a CDATA section. If they are needed elsewhere,
  // they must be escaped using either numeric character references or the strings
  // " & " and " < " respectively. The right angle bracket (>) may be represented
  // using the string " > ", and must, for compatibility, be escaped using either
  // " > " or a character reference when it appears in the string " ]]> " in content,
  // when that string is not marking the end of a CDATA section.
  //
  string = string.replace(AMPERSAND_REGEXP, '&amp;').replace(GREATER_THAN_REGEXP, '&gt;').replace(LESS_THAN_REGEXP, '&lt;');

  // Additionally, in attribute values, single and double quotes might be required
  // to be escaped depending on what character is used for delimiting those attribute values.
  if (attribute) {
    string = string.replace(SINGLE_QUOTE_REGEXP, '&apos;').replace(DOUBLE_QUOTE_REGEXP, '&quot;');
  }
  return string;
}
var AMPERSAND_REGEXP = /&/g;
var GREATER_THAN_REGEXP = />/g;
var LESS_THAN_REGEXP = /</g;
var SINGLE_QUOTE_REGEXP = /'/g;
var DOUBLE_QUOTE_REGEXP = /"/g;
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