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Merge pull request #590 from appelemac/math

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Math Eval
This commit is contained in:
Master Kwoth 2016-08-22 13:36:46 +02:00 committed by GitHub
commit 9d4648104a
3 changed files with 354 additions and 4 deletions
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84
src/NadekoBot/Modules/Searches/Commands/CalcCommand.cs Normal file
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@ -0,0 +1,84 @@
using Discord;
using Discord.Commands;
using NadekoBot.Attributes;
using NadekoBot.Extensions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
namespace NadekoBot.Modules.Searches
{
[Group]
public partial class Searches
{
[LocalizedCommand, LocalizedDescription, LocalizedSummary]
[RequireContext(ContextType.Guild)]
public static async Task Calculate(IMessage msg, [Remainder] string expression)
{
try
{
var expr = new NCalc.Expression(expression, NCalc.EvaluateOptions.IgnoreCase);
expr.EvaluateParameter += Expr_EvaluateParameter;
expr.EvaluateFunction += Expr_EvaluateFunction;
var result = expr.Evaluate();
await msg.Reply(string.Format("Your expression evaluated to: {0}", expr.Error ?? result));
}
catch (Exception e)
{
await msg.Reply($"Your expression failed to evaluate: {e.Message} ");
}
}
private static void Expr_EvaluateFunction(string name, NCalc.FunctionArgs args)
{
switch (name.ToLowerInvariant())
{
}
}
private static void Expr_EvaluateParameter(string name, NCalc.ParameterArgs args)
{
switch (name.ToLowerInvariant()) {
case "pi": args.Result= Math.PI;
break;
case "e": args.Result = Math.E;
break;
}
}
[Command("calcOperations")]
[RequireContext(ContextType.Guild)]
public async Task calcOperations(IMessage msg)
{
StringBuilder builder = new StringBuilder();
var selection = typeof(Math).GetTypeInfo().GetMethods().Except(typeof(object).GetTypeInfo().GetMethods()).Select(x =>
{
var name = x.Name;
if (x.GetParameters().Any())
{
name += " (" + string.Join(", ", x.GetParameters().Select(y => y.IsOptional ? $"[{y.ParameterType.Name + " " + y.Name }]" : y.ParameterType.Name + " " + y.Name)) + ")";
}
return name;
});
foreach (var method in selection) builder.AppendLine(method);
await msg.ReplyLong(builder.ToString());
}
}
class ExpressionContext
{
public double Pi { get; set; } = Math.PI;
}
}

5
src/NadekoBot/project.json
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@ -20,13 +20,14 @@
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"VideoLibrary": "1.3.4"
},

269
src/NadekoBot/project.lock.json
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@ -3,6 +3,26 @@
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