source: EcnlProtoTool/trunk/webapp/webmrbc/Collection.cs@ 270

using System;
using System.Linq;
using System.Collections.Generic;
using Bridge;
using Bridge.Linq;
using Bridge.Text.RegularExpressions;
using System.Collections;

namespace WebMrbc
{
        public interface IModel
        {
                string Identifier { get; }
        }

        public class Collection<T> : IEnumerable<T> where T : IModel
        {
                T[] List = new T[0];

                public Collection()
                {
                }

                public T LastModel { get { int i = List.Length; if (i == 0) return default(T); return List[i - 1]; } }
                public int Length { get { return List.Length; } }

                public EventHandler OnAdd;
                public EventHandler OnRemove;
                public EventHandler OnReset;
                public EventHandler OnChange;

                internal void Add(T item)
                {
                        List.Push(item);

                        if (OnAdd != null)
                                OnAdd(this, EventArgs.Empty);
                }

                internal void Remove(T item)
                {
                        var i = List.IndexOf(item);
                        if (i >= 0)
                                List.Splice(i, 1);

                        if (OnRemove != null)
                                OnRemove(this, EventArgs.Empty);
                }

                internal void Reset()
                {
                        List.Splice(0, List.Length);

                        if (OnReset != null)
                                OnReset(this, EventArgs.Empty);
                }

                internal void Reset(IEnumerable<T> n)
                {
                        List.Splice(0, List.Length);
                        List = (T[])List.Concat(n);

                        if (OnReset != null)
                                OnReset(this, EventArgs.Empty);
                }

                internal T At(int index)
                {
                        return List[index];
                }

                internal string UniqueName(string identifier)
                {
                        var prefix = "";
                        if ((identifier[0] >= 'a') && (identifier[0] <= 'z'))
                                prefix = identifier[0].ToString().ToUpper();
                        else if ((identifier[0] < 'A') || (identifier[0] > 'Z'))
                                prefix = "C";

                        var max = 0;
                        var n = new Regex("^" + identifier + "([0-9]+)$");
                        foreach (var c in List) {
                                var m = c.Identifier.Match(n);
                                if (m != null)
                                        max = System.Math.Max(max, Script.ParseInt(m[0]));
                                break;
                        }
                        if (max == 0)
                                return prefix + identifier;
                        else
                                return prefix + identifier + max;
                }

                internal T FindWhere(object p)
                {
                        foreach (var c in List) {
                                if (Script.Write<bool>("(function(c) { for (var i in p) if (p[i] !== c[i]) return false; return true; })(c)"))
                                        return c;
                        }
                        return default(T);
                }

                public IEnumerator<T> GetEnumerator()
                {
                        return (dynamic)List.GetEnumerator();
                }

                IEnumerator IEnumerable.GetEnumerator()
                {
                        return List.GetEnumerator();
                }
        }
}