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#region Copyright
//
// Nini Configuration Project.
// Copyright (C) 2006 Brent R. Matzelle. All rights reserved.
//
// This software is published under the terms of the MIT X11 license, a copy of
// which has been included with this distribution in the LICENSE.txt file.
//
// Original code written by: R. LOPES (GriffonRL)
// Article: http://thecodeproject.com/csharp/command_line.asp
#endregion
using System;
using System.Collections;
using System.Collections.Specialized;
using System.Text.RegularExpressions;
namespace Nini.Util
{
/// <include file='ArgvParser.xml' path='//Class[@name="ArgvParser"]/docs/*' />
public class ArgvParser
{
#region Private variables
StringDictionary parameters;
#endregion
#region Constructors
/// <include file='ArgvParser.xml' path='//Constructor[@name="Constructor"]/docs/*' />
public ArgvParser(string args)
{
Regex Extractor = new Regex(@"(['""][^""]+['""])\s*|([^\s]+)\s*",
RegexOptions.Compiled);
MatchCollection matches;
string[] parts;
// Get matches (first string ignored because
// Environment.CommandLine starts with program filename)
matches = Extractor.Matches (args);
parts = new string[matches.Count - 1];
for (int i = 1; i < matches.Count; i++)
{
parts[i-1] = matches[i].Value.Trim ();
}
}
/// <include file='ArgvParser.xml' path='//Constructor[@name="ConstructorArray"]/docs/*' />
public ArgvParser (string[] args)
{
Extract (args);
}
#endregion
#region Public properties
/// <include file='ArgvParser.xml' path='//Property[@name="this"]/docs/*' />
public string this [string param]
{
get {
return parameters[param];
}
}
#endregion
#region Private methods
// Extract command line parameters and values stored in a string array
private void Extract(string[] args)
{
parameters = new StringDictionary();
Regex splitter = new Regex (@"^([/-]|--){1}(?<name>\w+)([:=])?(?<value>.+)?$",
RegexOptions.Compiled);
char[] trimChars = {'"','\''};
string parameter = null;
Match part;
// Valid parameters forms: {-,/,--}param{ , = ,:}((",')value(",'))
// Examples: -param1 value1 --param2 /param3:"Test-:-work"
// /param4 = happy -param5 '-- = nice = --'
foreach(string arg in args)
{
part = splitter.Match(arg);
if (!part.Success) {
// Found a value (for the last parameter found (space separator))
if (parameter != null) {
parameters[parameter] = arg.Trim (trimChars);
}
} else {
// Matched a name, optionally with inline value
parameter = part.Groups["name"].Value;
parameters.Add (parameter,
part.Groups["value"].Value.Trim (trimChars));
}
}
}
#endregion
}
}
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