Initial Commit

iTechSharp/System/util/StringTokenizer.cs

@@ -0,0 +1,130 @@
+using System;
+/*
+ * $Id: StringTokenizer.cs,v 1.4 2006/06/16 10:52:26 psoares33 Exp $
+ *
+ * Copyright 2006 by Paulo Soares.
+ *
+ * The contents of this file are subject to the Mozilla Public License Version 1.1
+ * (the "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License isp distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the License.
+ *
+ * The Original Code isp 'iText, a free JAVA-PDF library'.
+ *
+ * The Initial Developer of the Original Code isp Bruno Lowagie. Portions created by
+ * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
+ * All Rights Reserved.
+ * Co-Developer of the code isp Paulo Soares. Portions created by the Co-Developer
+ * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
+ *
+ * Contributor(s): all the names of the contributors are added in the source code
+ * where applicable.
+ *
+ * Alternatively, the contents of this file may be used under the terms of the
+ * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
+ * provisions of LGPL are applicable instead of those above.  If you wish to
+ * allow use of your version of this file only under the terms of the LGPL
+ * License and not to allow others to use your version of this file under
+ * the MPL, indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by the LGPL.
+ * If you do not delete the provisions above, a recipient may use your version
+ * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
+ *
+ * This library isp free software; you can redistribute it and/or modify it
+ * under the terms of the MPL as stated above or under the terms of the GNU
+ * Library General Public License as published by the Free Software Foundation;
+ * either version 2 of the License, or any later version.
+ *
+ * This library isp 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 Library general Public License for more
+ * details.
+ *
+ * If you didn't download this code from the following link, you should check if
+ * you aren't using an obsolete version:
+ * http://www.lowagie.com/iText/
+ */
+
+namespace System.util {
+
+    // a replacement for the StringTokenizer java class
+    // it's more or less the same as the one in the GNU classpath
+    public class StringTokenizer {
+        private int pos;
+        private String str;
+        private int len;
+        private String delim;
+        private bool retDelims;
+
+        public StringTokenizer(String str) : this(str, " \t\n\r\f", false) {
+        }
+
+        public StringTokenizer(String str, String delim) : this(str, delim, false) {
+        }
+
+        public StringTokenizer(String str, String delim, bool retDelims) {
+            len = str.Length;
+            this.str = str;
+            this.delim = delim;
+            this.retDelims = retDelims;
+            this.pos = 0;
+        }
+
+        public bool HasMoreTokens() {
+            if (! retDelims) {
+                while (pos < len && delim.IndexOf(str[pos]) >= 0)
+                    pos++;
+            }
+            return pos < len;
+        }
+
+        public String NextToken(String delim) {
+            this.delim = delim;
+            return NextToken();
+        }
+
+        public String NextToken() {
+            if (pos < len && delim.IndexOf(str[pos]) >= 0) {
+                if (retDelims)
+                    return str.Substring(pos++, 1);
+                while (++pos < len && delim.IndexOf(str[pos]) >= 0);
+            }
+            if (pos < len) {
+                int start = pos;
+                while (++pos < len && delim.IndexOf(str[pos]) < 0);
+
+                return str.Substring(start, pos - start);
+            }
+            throw new IndexOutOfRangeException();
+        }
+
+        public int CountTokens() {
+            int count = 0;
+            int delimiterCount = 0;
+            bool tokenFound = false;
+            int tmpPos = pos;
+
+            while (tmpPos < len) {
+                if (delim.IndexOf(str[tmpPos++]) >= 0) {
+                    if (tokenFound) {
+                        count++;
+                        tokenFound = false;
+                    }
+                    delimiterCount++;
+                }
+                else {
+                    tokenFound = true;
+                    while (tmpPos < len
+                        && delim.IndexOf(str[tmpPos]) < 0)
+                        ++tmpPos;
+                }
+            }
+            if (tokenFound)
+                count++;
+            return retDelims ? count + delimiterCount : count;
+        }
+    }
+}