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| /* | ||
| * Copyright 2014, Gregg Tavares. | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are | ||
| * met: | ||
| * | ||
| * * Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * * Redistributions in binary form must reproduce the above | ||
| * copyright notice, this list of conditions and the following disclaimer | ||
| * in the documentation and/or other materials provided with the | ||
| * distribution. | ||
| * * Neither the name of Gregg Tavares. nor the names of its | ||
| * contributors may be used to endorse or promote products derived from | ||
| * this software without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
| using System.Collections.Generic; | ||
|
|
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| namespace HappyFunTimes { | ||
|
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| /// <summary> | ||
| /// A very simple commandline argument parser. | ||
| /// | ||
| /// It just looks arguments that start with "--". For any | ||
| /// argument that starts with "--" it will then look for the | ||
| /// first "=" sign. If found it will set remember the value | ||
| /// for that option. If no equals is found it uses the value | ||
| /// "true" | ||
| /// </summary> | ||
| /// <example> | ||
| /// Example: Assume your command line is | ||
| /// <code> | ||
| /// myprogram --name=gregg --count=123 --debug | ||
| /// </code> | ||
| /// You can then read those options with | ||
| /// <code> | ||
| /// using HappyFunTimes; | ||
| /// | ||
| /// ... | ||
| /// ArgParser p = new ArgParser(); | ||
| /// | ||
| /// // Set Defaults | ||
| /// string name = "Someone"; | ||
| /// int count = 1; | ||
| /// bool debug = false; | ||
| /// | ||
| /// p.TryGet<string>("name", name); | ||
| /// p.TryGet<int>("count", count); | ||
| /// if (p.Contains("debug")) { | ||
| /// debug = true; | ||
| /// } | ||
| /// </code> | ||
| /// </example> | ||
| /// <returns></returns> | ||
| public class ArgParser { | ||
|
|
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| /// <summary> | ||
| /// Constructor for ArgParser that parses command line arguments | ||
| /// </summary> | ||
| public ArgParser() | ||
| { | ||
| Init(System.Environment.GetCommandLineArgs()); | ||
| } | ||
|
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| /// <summary> | ||
| /// Constructor for ArgParser which you can pass your own array of strings. | ||
| /// </summary> | ||
| /// <param name="args">Array of command line like argument strings</param> | ||
| public ArgParser(string[] args) | ||
| { | ||
| Init(args); | ||
| } | ||
|
|
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| /// <summary> | ||
| /// Check if a switch exists. | ||
| /// </summary> | ||
| /// <param name="id">name of switch</param> | ||
| /// <returns>true if switch was contained in arguments</returns> | ||
| public bool Contains(string id) | ||
| { | ||
| return m_switches.ContainsKey(id); | ||
| } | ||
|
|
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| /// <summary> | ||
| /// Gets the value of a switch if it exists | ||
| /// </summary> | ||
| /// <param name="id">id of switch</param> | ||
| /// <param name="value">variable to receive the value</param> | ||
| /// <returns>true if the value exists. False if it does not. If false value has not been affected.</returns> | ||
| public bool TryGet<T>(string id, ref T value) { | ||
| string v; | ||
| bool found = m_switches.TryGetValue(id, out v); | ||
| if (found) { | ||
| value = (T)System.Convert.ChangeType(v, typeof(T)); | ||
| } | ||
| return found; | ||
| } | ||
|
|
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| private void Init(string[] arguments) | ||
| { | ||
| m_switches = new Dictionary<string, string>(); | ||
| foreach (string arg in arguments) { | ||
| if (arg.StartsWith("--")) { | ||
| int equalsNdx = arg.IndexOf('='); | ||
| if (equalsNdx >= 0) { | ||
| m_switches[arg.Substring(2, equalsNdx - 2)] = arg.Substring(equalsNdx + 1); | ||
| } else { | ||
| m_switches[arg.Substring(2)] = "true"; | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| private Dictionary<string, string> m_switches; | ||
| }; | ||
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| } // namespace HappyFunTimes | ||
|
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