svgo-browser/plugins/removeEditorsNSData.js

svgo tool for browser and node usage

exports.type = 'perItem';

exports.active = true;

exports.description = 'removes editors namespaces, elements and attributes';

let { editorNamespaces } = require('./_collections');

const prefixes = [];

exports.params = {
  additionalNamespaces: [],
};

/**
 * Remove editors namespaces, elements and attributes.
 *
 * @example
 * <svg xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd">
 * <sodipodi:namedview/>
 * <path sodipodi:nodetypes="cccc"/>
 *
 * @param {Object} item current iteration item
 * @param {Object} params plugin params
 * @return {Boolean} if false, item will be filtered out
 *
 * @author Kir Belevich
 */
exports.fn = function (item, params) {
  if (Array.isArray(params.additionalNamespaces)) {
    editorNamespaces = editorNamespaces.concat(params.additionalNamespaces);
  }

  if (item.elem) {
    if (item.isElem('svg')) {
      item.eachAttr((attr) => {
        if (attr.prefix === 'xmlns' && editorNamespaces.indexOf(attr.value) > -1) {
          prefixes.push(attr.local);

          // <svg xmlns:sodipodi="">
          item.removeAttr(attr.name);
        }
      });
    }

    // <* sodipodi:*="">
    item.eachAttr((attr) => {
      if (prefixes.indexOf(attr.prefix) > -1) {
        item.removeAttr(attr.name);
      }
    });

    // <sodipodi:*>
    if (prefixes.indexOf(item.prefix) > -1) {
      return false;
    }
  }
};