All files / src/utils druid-expression.ts

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */
 
const UNSAFE_CHAR = /[^a-z0-9 ,._\-;:(){}\[\]<>!@#$%^&*`~?]/gi;
 
function escape(str: string): string {
  return str.replace(UNSAFE_CHAR, s => {
    return '\\u' + ('000' + s.charCodeAt(0).toString(16)).substr(-4);
  });
}
 
export function escapeColumnName(name: string): string {
  return `"${escape(name)}"`;
}