| /* |
| * 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. |
| */ |
| package org.apache.flink.table.codegen |
| |
| class IndentStringContext(sc: StringContext) { |
| def j(args: Any*): String = { |
| val sb = new StringBuilder() |
| for ((s, a) <- sc.parts zip args) { |
| sb append s |
| |
| val ind = getindent(s) |
| if (ind.nonEmpty) { |
| sb append a.toString.replaceAll("\n", "\n" + ind) |
| } else { |
| sb append a.toString |
| } |
| } |
| if (sc.parts.size > args.size) { |
| sb append sc.parts.last |
| } |
| |
| sb.toString() |
| } |
| |
| // get white indent after the last new line, if any |
| def getindent(str: String): String = { |
| val lastnl = str.lastIndexOf("\n") |
| if (lastnl == -1) "" |
| else { |
| val ind = str.substring(lastnl + 1) |
| if (ind.trim.isEmpty) ind // ind is all whitespace. Use this |
| else "" |
| } |
| } |
| } |
| |
| object Indenter { |
| implicit def toISC(sc: StringContext): IndentStringContext = new IndentStringContext(sc) |
| } |
