Arguments/ArgsParser.cs

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/*
 * Author: Kishore Reddy
 * Url: http://commonlibrarynet.codeplex.com/
 * Title: CommonLibrary.NET
 * Copyright: � 2009 Kishore Reddy
 * License: LGPL License
 * LicenseUrl: http://commonlibrarynet.codeplex.com/license
 * Description: A C# based .NET 3.5 Open-Source collection of reusable components.
 * Usage: Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Collections;
using System.Text.RegularExpressions;
using System.Reflection;


namespace ComLib.Arguments
{
    /// <summary>
    /// Class providing utility methods for parsing a string or collection of arguments.
    /// </summary>
    public partial class Args
    {
        private static Func<string, List<string>> _stringParser;


        /// <summary>
        /// Initialize the string parser and substutions.
        /// Args.InitServices((textargs) => ComLib.Parsing.LexArgs.ParseList(textargs), (arg) => ComLib.Subs.Substitutor.Substitute(arg));
        /// </summary>
        /// <param name="stringParser"></param>
        /// <param name="substitutor"></param>
        public static void InitServices(Func<string, List<string>> stringParser, Func<string, string> substitutor = null)
        {
            _stringParser = stringParser;
            ArgsHelper.InitServices(substitutor);
        }


        /// <summary>
        /// Parse the line into <see cref="Args"/> object.
        /// </summary>
        /// <param name="text">The line of text containing arguments to parse.</param>
        /// <returns></returns>
        public static BoolMessageItem<Args> Parse(string text)
        {
            if(string.IsNullOrEmpty(text)) return new BoolMessageItem<Args>(null, false, "No arguments provided.");
            if(_stringParser == null) return new BoolMessageItem<Args>(null, false, "Parser for text based args not initialized.");

            List<string> args = _stringParser(text);
            return TryCatch(() => Parse(args.ToArray()));
        }