| /* |
| * 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.maven.cli; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * CleanArgument |
| */ |
| public class CleanArgument { |
| public static String[] cleanArgs(String[] args) { |
| List<String> cleaned = new ArrayList<>(); |
| |
| StringBuilder currentArg = null; |
| |
| for (String arg : args) { |
| boolean addedToBuffer = false; |
| |
| if (arg.startsWith("\"")) { |
| // if we're in the process of building up another arg, push it and start over. |
| // this is for the case: "-Dfoo=bar "-Dfoo2=bar two" (note the first unterminated quote) |
| if (currentArg != null) { |
| cleaned.add(currentArg.toString()); |
| } |
| |
| // start building an argument here. |
| currentArg = new StringBuilder(arg.substring(1)); |
| addedToBuffer = true; |
| } |
| |
| // this has to be a separate "if" statement, to capture the case of: "-Dfoo=bar" |
| if (addedToBuffer && arg.endsWith("\"")) { |
| String cleanArgPart = arg.substring(0, arg.length() - 1); |
| |
| // if we're building an argument, keep doing so. |
| if (currentArg != null) { |
| // if this is the case of "-Dfoo=bar", then we need to adjust the buffer. |
| if (addedToBuffer) { |
| currentArg.setLength(currentArg.length() - 1); |
| } |
| // otherwise, we trim the trailing " and append to the buffer. |
| else { |
| // TODO introducing a space here...not sure what else to do but collapse whitespace |
| currentArg.append(' ').append(cleanArgPart); |
| } |
| |
| cleaned.add(currentArg.toString()); |
| } else { |
| cleaned.add(cleanArgPart); |
| } |
| |
| currentArg = null; |
| addedToBuffer = false; |
| continue; |
| } |
| |
| // if we haven't added this arg to the buffer, and we ARE building an argument |
| // buffer, then append it with a preceding space...again, not sure what else to |
| // do other than collapse whitespace. |
| // NOTE: The case of a trailing quote is handled by nullifying the arg buffer. |
| if (!addedToBuffer) { |
| if (currentArg != null) { |
| currentArg.append(' ').append(arg); |
| } else { |
| cleaned.add(arg); |
| } |
| } |
| } |
| |
| if (currentArg != null) { |
| cleaned.add(currentArg.toString()); |
| } |
| |
| int cleanedSz = cleaned.size(); |
| |
| String[] cleanArgs; |
| |
| if (cleanedSz == 0) { |
| cleanArgs = args; |
| } else { |
| cleanArgs = cleaned.toArray(new String[0]); |
| } |
| |
| return cleanArgs; |
| } |
| } |