Function buildAttributesMap

src/xmlparser/OrderedObjParser.js:200–283

(attrStr, jPath, tagName, force = false)

const attrsRegx = new RegExp('([^\\s=]+)\\s*(=\\s*([\'"])([\\s\\S]*?)\\3)?', 'gm');

function buildAttributesMap(attrStr, jPath, tagName, force = false) {
  const options = this.options;
  if (force === true || (options.ignoreAttributes !== true && typeof attrStr === 'string')) {
    // attrStr = attrStr.replace(/\r?\n/g, ' ');
    //attrStr = attrStr || attrStr.trim();

    const matches = getAllMatches(attrStr, attrsRegx);
    const len = matches.length; //don't make it inline
    const attrs = {};

    // Pre-process values once: trim + entity replacement
    // Reused in both matcher update and second pass
    const processedVals = new Array(len);
    let hasRawAttrs = false;
    const rawAttrsForMatcher = {};

    for (let i = 0; i < len; i++) {
      const attrName = this.resolveNameSpace(matches[i][1]);
      const oldVal = matches[i][4];

      if (attrName.length && oldVal !== undefined) {
        let val = oldVal;
        if (options.trimValues) val = val.trim();
        val = this.replaceEntitiesValue(val, tagName, this.readonlyMatcher);
        processedVals[i] = val;

        rawAttrsForMatcher[attrName] = val;
        hasRawAttrs = true;
      }
    }

    // Update matcher ONCE before second pass, if applicable
    if (hasRawAttrs && typeof jPath === 'object' && jPath.updateCurrent) {
      jPath.updateCurrent(rawAttrsForMatcher);
    }

    // Hoist toString() once — path doesn't change during attribute processing
    const jPathStr = options.jPath ? jPath.toString() : this.readonlyMatcher;

    // Second pass: apply processors, build final attrs
    let hasAttrs = false;
    for (let i = 0; i < len; i++) {
      const attrName = this.resolveNameSpace(matches[i][1]);

      if (this.ignoreAttributesFn(attrName, jPathStr)) continue;

      let aName = options.attributeNamePrefix + attrName;

      if (attrName.length) {
        if (options.transformAttributeName) {
          aName = options.transformAttributeName(aName);
        }
        aName = sanitizeName(aName, options);

        if (matches[i][4] !== undefined) {
          // Reuse already-processed value — no double entity replacement
          const oldVal = processedVals[i];