textutility.cs

来自「c#精彩编程百例（源代码）」· CS 代码 · 共 80 行

// TextUtility.cs
// Copyright (C) 2001 Mike Krueger
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

using System;

namespace SharpDevelop.Tool.Text {
	
	public class TextUtility
	{
		
		public static bool RegionMatches(string line, int offset, int length, string word)
		{
			if (length != word.Length || line.Length < offset + length)
				return false;
			
			for (int i = 0; i < length; ++i) {
				if (line[offset + i] != word[i])
					return false;
			}
			return true;
		}
		
		public static bool RegionMatches(bool casesensitive, string line, int offset, int length, string word)
		{
			if (casesensitive)
				return RegionMatches(line, offset, length, word);
			
			if (length != word.Length || line.Length < offset + length)
				return false;
			
			for (int i = 0; i < length; ++i) {
				if (Char.ToUpper(line[offset + i]) != Char.ToUpper(word[i]))
					return false;
			}
			return true;
		}
		
		public static bool RegionMatches(string line, int offset, int length, char[] word)
		{
			if (length != word.Length || line.Length < offset + length)
				return false;
			
			for (int i = 0; i < length; ++i) {
				if (line[offset + i] != word[i])
					return false;
			}
			return true;
		}
		
		public static bool RegionMatches(bool casesensitive, string line, int offset, int length, char[] word)
		{
			if (casesensitive)
				return RegionMatches(line, offset, length, word);
			
			if (length != word.Length || line.Length < offset + length)
				return false;
			
			for (int i = 0; i < length; ++i) {
				if (Char.ToUpper(line[offset + i]) != Char.ToUpper(word[i]))
					return false;
			}
			return true;
		}
	}
}