content: /**
   * Copyright (C) 2024 AIDC-AI
   *
   * 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.
   */
  package com.alibaba.langengine.core.chain.llmbash;
  
  import com.alibaba.langengine.core.outputparser.BaseOutputParser;
  import lombok.Data;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  /**
   * Parser for bash output.
   *
   * @author xiaoxuan.lp
   */
  @Data
  public class BashOutputParser extends BaseOutputParser<List<String>> {
  
      @Override
      public List<String> parse(String text) {
          if (text.contains("```bash")) {
              return getCodeBlocks(text);
          } else {
              throw new RuntimeException("Failed to parse bash output. Got: " + text);
          }
      }
  
      private List<String> getCodeBlocks(String text) {
          List<String> codeBlocks = new ArrayList<>();
          Pattern pattern = Pattern.compile("```bash(.*?)(?:\\n\\s*)```", Pattern.DOTALL);
          Matcher matcher = pattern.matcher(text);
          while (matcher.find()) {
              String matched = matcher.group(1).trim();
              if (!matched.isEmpty()) {
                  codeBlocks.addAll(Arrays.asList(matched.split("\n")));
              }
          }
          return codeBlocks;
      }
  
      @Override
      public String getParserType() {
          return "bash";
      }
  }
  