sonarqube/server/sonar-web/src/main/js/helpers/search.tsx

/*
 * SonarQube
 * Copyright (C) 2009-2018 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
import * as React from 'react';

export function highlightTerm(str: string, term: string) {
  const pos = str.toLowerCase().indexOf(term.toLowerCase());
  return pos !== -1 ? (
    <>
      {pos > 0 && str.substring(0, pos)}
      <mark>{str.substr(pos, term.length)}</mark>
      {pos + term.length < str.length && str.substring(pos + term.length)}
    </>
  ) : (
    str
  );
}