| /* |
| * 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. |
| */ |
| |
| parser grammar PathParser; |
| |
| options { tokenVocab=PathLexer; } |
| |
| |
| /** |
| * PartialPath and Path used by Session API and TsFile API should be parsed by Antlr4. |
| */ |
| |
| path |
| : prefixPath EOF |
| | suffixPath EOF |
| ; |
| |
| prefixPath |
| : ROOT (DOT nodeName)* |
| ; |
| |
| suffixPath |
| : nodeName (DOT nodeName)* |
| ; |
| |
| nodeName |
| : wildcard |
| | wildcard nodeNameSlice wildcard? |
| | nodeNameSlice wildcard |
| | nodeNameWithoutWildcard |
| ; |
| |
| nodeNameWithoutWildcard |
| : identifier |
| ; |
| |
| nodeNameSlice |
| : identifier |
| | INTEGER_LITERAL |
| ; |
| |
| identifier |
| : DURATION_LITERAL |
| | ID |
| | QUOTED_ID |
| ; |
| |
| wildcard |
| : STAR |
| | DOUBLE_STAR |
| ; |