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ICSharpCode.TextEditor/Project/Src/Util/TextUtility.cs

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+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Mike Krüger" email="mike@icsharpcode.net"/>
+//     <version>$Revision$</version>
+// </file>
+
+using System;
+
+using ICSharpCode.TextEditor.Document;
+
+namespace ICSharpCode.TextEditor.Util
+{
+	public class TextUtility
+	{
+		
+		public static bool RegionMatches(IDocument document, int offset, int length, string word)
+		{
+			if (length != word.Length || document.TextLength < offset + length) {
+				return false;
+			}
+			
+			for (int i = 0; i < length; ++i) {
+				if (document.GetCharAt(offset + i) != word[i]) {
+					return false;
+				}
+			}
+			return true;
+		}
+		
+		public static bool RegionMatches(IDocument document, bool casesensitive, int offset, int length, string word)
+		{
+			if (casesensitive) {
+				return RegionMatches(document, offset, length, word);
+			}
+			
+			if (length != word.Length || document.TextLength < offset + length) {
+				return false;
+			}
+			
+			for (int i = 0; i < length; ++i) {
+				if (char.ToUpper(document.GetCharAt(offset + i)) != char.ToUpper(word[i])) {
+					return false;
+				}
+			}
+			return true;
+		}
+		
+		public static bool RegionMatches(IDocument document, int offset, int length, char[] word)
+		{
+			if (length != word.Length || document.TextLength < offset + length) {
+				return false;
+			}
+			
+			for (int i = 0; i < length; ++i) {
+				if (document.GetCharAt(offset + i) != word[i]) {
+					return false;
+				}
+			}
+			return true;
+		}
+		
+		public static bool RegionMatches(IDocument document, bool casesensitive, int offset, int length, char[] word)
+		{
+			if (casesensitive) {
+				return RegionMatches(document, offset, length, word);
+			}
+			
+			if (length != word.Length || document.TextLength < offset + length) {
+				return false;
+			}
+			
+			for (int i = 0; i < length; ++i) {
+				if (char.ToUpper(document.GetCharAt(offset + i)) != char.ToUpper(word[i])) {
+					return false;
+				}
+			}
+			return true;
+		}
+	}
+}