development/fetchLicenses/plain_text_formatter.ts

/*
 * Copyright 2019 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { ContentNode } from './types';

export class PlainTextFormatter {
  static plainTextFor(nodes: ContentNode[]): string {
    const output: string[] = [];
    for (let i = 0; i < nodes.length; i += 1) {
      let node = nodes[i];
      if (!node.localName || node.localName.startsWith('#comment')) {
        // Ignore comments
        continue;
      }
      if (!node.textContent) {
        continue;
      }
      output.push(node.textContent);
    }
    return output.join('');
  }
}