mirror of
https://github.com/jie65535/GrasscutterCommandGenerator.git
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61 lines
2.3 KiB
C#
61 lines
2.3 KiB
C#
/**
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* Grasscutter Tools
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* Copyright (C) 2023 jie65535
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published
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* by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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**/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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namespace GrasscutterTools.Utils
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{
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/// <summary>
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/// Simple command line toggles parser:
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/// - toggles are identified with (any number of) '-' prefixes
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/// - toggle can be with or without associated value
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/// - toggles are case-insensitive
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///
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/// <example>--toggle_without_value -toggle value</example>
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/// <see cref="https://gist.github.com/jchapuis/64b5adf9d0f3062e6a72dded110a6028"/>
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/// </summary>
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internal class ToggleParser
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{
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private readonly Dictionary<string, string> toggles;
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public ToggleParser(string[] args)
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{
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toggles =
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args.Zip(args.Skip(1).Concat(new[] { string.Empty }), (first, second) => new { first, second })
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.Where(pair => IsToggle(pair.first))
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.ToDictionary(pair => RemovePrefix(pair.first).ToLowerInvariant(), g => IsToggle(g.second) ? string.Empty : g.second);
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}
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private static string RemovePrefix(string toggle)
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=> new string(toggle.SkipWhile(c => c == '-').ToArray());
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private static bool IsToggle(string arg)
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=> arg.StartsWith("-", StringComparison.InvariantCulture);
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public bool HasToggle(string toggle)
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=> toggles.ContainsKey(toggle.ToLowerInvariant());
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public string GetToggleValueOrDefault(string toggle, string defaultValue)
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=> toggles.TryGetValue(toggle.ToLowerInvariant(), out var value) ? value : defaultValue;
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public bool IsEmpty => toggles.Count == 0;
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}
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} |