Method setAttributeSelector

lib/attributeLibrary.ts:292–351

(attributeSelector: string | string[])

  }

  setAttributeSelector(attributeSelector: string | string[]): void {
    if (!attributeSelector) {
      return;
    }

    if (Array.isArray(attributeSelector)) {
      attributeSelector.forEach((value) => this.setAttributeSelector(value));

      return;
    }

    const re = new RegExp(this.getAttributeSelectorRegex());
    const exec = re.exec(attributeSelector);

    if (!exec) {
      return;
    }

    const term = exec[3];

    let attributeSelectorType = exec[2];
    let selector = term;

    // it is empty if the attribute selector is following: [class=test]
    if (attributeSelectorType === '') {
      attributeSelectorType = '=';
    }

    if (term.charAt(0).match(/"|'/)) {
      selector = term.slice(1, exec[3].length - 1);
    }

    const attributeSelectorKey = attributeSelectorType + selector;

    this.attributeSelectors[attributeSelectorKey] = {
      type: exec[1],
      originalString: attributeSelector,
      regexType: attributeSelectorType,
      nameGeneratorCounter: new NameGenerator('attribute'),
    };

    // then, we need to replace any original selector that would be matching this rule with a
    // rename that still match the replacement
    Object.keys(this.values).forEach((key) => {
      const r = AttributeLibrary.replaceAnAttributeSelector(
        false,
        attributeSelectorKey,
        this.attributeSelectors[attributeSelectorKey],
        key,
      );

      if (r !== false) {
        const prev = this.values[key];

        this.values[key] = r;
        delete this.compressedValues[prev];
        this.compressedValues[r] = key;
      }