| // Copyright (c) .NET Foundation. All rights reserved. |
| // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. |
| |
| using System; |
| using System.Collections.Generic; |
| using System.Linq; |
| |
| namespace Lucene.Net.Cli.CommandLine |
| { |
| /* |
| * 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. |
| */ |
| |
| public class CommandOption |
| { |
| public CommandOption(string template, CommandOptionType optionType) |
| { |
| Template = template; |
| OptionType = optionType; |
| Values = new List<string>(); |
| |
| foreach (var part in Template.Split(new[] { ' ', '|' }, StringSplitOptions.RemoveEmptyEntries)) |
| { |
| if (part.StartsWith("--")) |
| { |
| LongName = part.Substring(2); |
| } |
| else if (part.StartsWith("-")) |
| { |
| var optName = part.Substring(1); |
| |
| // If there is only one char and it is not an English letter, it is a symbol option (e.g. "-?") |
| if (optName.Length == 1 && !IsEnglishLetter(optName[0])) |
| { |
| SymbolName = optName; |
| } |
| else |
| { |
| ShortName = optName; |
| } |
| } |
| else if (part.StartsWith("<") && part.EndsWith(">")) |
| { |
| ValueName = part.Substring(1, part.Length - 2); |
| } |
| else |
| { |
| throw new ArgumentException($"Invalid template pattern '{template}'", nameof(template)); |
| } |
| } |
| |
| if (string.IsNullOrEmpty(LongName) && string.IsNullOrEmpty(ShortName) && string.IsNullOrEmpty(SymbolName)) |
| { |
| throw new ArgumentException($"Invalid template pattern '{template}'", nameof(template)); |
| } |
| } |
| |
| /// <summary> |
| /// An ID that can be used to locate this option. |
| /// </summary> |
| public string UniqueId { get; set; } |
| public string Template { get; set; } |
| public string ShortName { get; set; } |
| public string LongName { get; set; } |
| public string SymbolName { get; set; } |
| public string ValueName { get; set; } |
| public string Description { get; set; } |
| public List<string> Values { get; private set; } |
| public CommandOptionType OptionType { get; private set; } |
| public bool ShowInHelpText { get; set; } = true; |
| public bool Inherited { get; set; } |
| |
| public bool TryParse(string value) |
| { |
| switch (OptionType) |
| { |
| case CommandOptionType.MultipleValue: |
| Values.Add(value); |
| break; |
| case CommandOptionType.SingleValue: |
| if (Values.Any()) |
| { |
| return false; |
| } |
| Values.Add(value); |
| break; |
| case CommandOptionType.NoValue: |
| if (value != null) |
| { |
| return false; |
| } |
| // Add a value to indicate that this option was specified |
| Values.Add("on"); |
| break; |
| default: |
| break; |
| } |
| return true; |
| } |
| |
| public bool HasValue() |
| { |
| return Values.Any(); |
| } |
| |
| public string Value() |
| { |
| return HasValue() ? Values[0] : null; |
| } |
| |
| private bool IsEnglishLetter(char c) |
| { |
| return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); |
| } |
| } |
| } |