1 /* 2 * [The "BSD licence"] 3 * Copyright (c) 2005-2008 Terence Parr 4 * All rights reserved. 5 * 6 * Conversion to C#: 7 * Copyright (c) 2008-2009 Sam Harwell, Pixel Mine, Inc. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 namespace Antlr.Runtime { 34 using Encoding = System.Text.Encoding; 35 using Stream = System.IO.Stream; 36 using StreamReader = System.IO.StreamReader; 37 38 /** <summary> 39 * A kind of ReaderStream that pulls from an InputStream. 40 * Useful for reading from stdin and specifying file encodings etc... 41 * </summary> 42 */ 43 [System.Serializable] 44 public class ANTLRInputStream : ANTLRReaderStream { 45 public ANTLRInputStream(Stream input) 46 : this(input, null) { 47 } 48 49 public ANTLRInputStream(Stream input, int size) 50 : this(input, size, null) { 51 } 52 53 public ANTLRInputStream(Stream input, Encoding encoding) 54 : this(input, InitialBufferSize, encoding) { 55 } 56 57 public ANTLRInputStream(Stream input, int size, Encoding encoding) 58 : this(input, size, ReadBufferSize, encoding) { 59 } 60 61 public ANTLRInputStream(Stream input, int size, int readBufferSize, Encoding encoding) 62 : base(GetStreamReader(input, encoding), size, readBufferSize) { 63 } 64 65 private static StreamReader GetStreamReader(Stream input, Encoding encoding) { 66 if (encoding != null) 67 return new StreamReader(input, encoding); 68 return new StreamReader(input); 69 } 70 } 71 } 72
