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78 lines
2.6 KiB
C#
78 lines
2.6 KiB
C#
using System;
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using System.Collections.Generic;
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using CodeStatistics.Data;
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namespace CodeStatistics{
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class ProgramArguments{
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public delegate bool ArgumentPredicate(Argument argument, Action<string> setError);
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private readonly HashSet<string> flags;
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private readonly Dictionary<string, string> variables;
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public string Error { get; private set; }
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public bool HasError { get { return Error != null; } }
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public ProgramArguments(string[] args, ArgumentPredicate argumentValidator){
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if (args.Length == 0){
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flags = null;
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variables = null;
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}
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else{
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flags = new HashSet<string>();
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variables = new Dictionary<string, string>(4);
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HashSet<string> identifiers = new HashSet<string>();
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Action<string> setError = err => Error = err;
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for(int index = 0; index < args.Length; index++){
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if (args[index][0] == '-' && args.Length > 1){
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string name = args[index].Substring(1);
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string identifier = name.IndexOf(':') == -1 ? name : name.Substring(0, name.IndexOf(':'));
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bool isVariable = index < args.Length-1 && args[index+1][0] != '-';
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if (!identifiers.Add(identifier)){
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Error = Lang.Get["ErrorInvalidArgsDuplicateIdentifier", identifier];
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break;
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}
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if (!argumentValidator(isVariable ? new Argument(name, args[index+1]) : new Argument(name), setError)){
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break;
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}
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if (isVariable){
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variables[name] = args[index+1];
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}
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else{
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flags.Add(name);
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}
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}
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}
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}
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}
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public bool CheckFlag(string name){
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return flags != null && flags.Contains(name);
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}
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public bool HasVariable(string name){
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return variables != null && variables.ContainsKey(name);
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}
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public string GetVariable(string name){
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return variables[name];
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}
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public struct Argument{
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public readonly string Name, Value;
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public bool IsFlag { get { return Value == null; } }
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public Argument(string name, string value = null){
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this.Name = name;
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this.Value = value;
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}
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}
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}
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}
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