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 { 35 using Encoding = System.Text.Encoding; 36 using File = System.IO.File; 37 38 /** <summary> 39 * This is a char buffer stream that is loaded from a file 40 * all at once when you construct the object. This looks very 41 * much like an ANTLReader or ANTLRInputStream, but it's a special case 42 * since we know the exact size of the object to load. We can avoid lots 43 * of data copying. 44 * </summary> 45 */ 46 [System.Serializable] 47 [System.Security.Permissions.FileIOPermission(System.Security.Permissions.SecurityAction.Demand, Unrestricted = true)] 48 public class ANTLRFileStream : ANTLRStringStream 49 { 50 protected string fileName; 51 ANTLRFileStream( string fileName )52 public ANTLRFileStream( string fileName ) 53 : this( fileName, null ) 54 { 55 } 56 ANTLRFileStream( string fileName, Encoding encoding )57 public ANTLRFileStream( string fileName, Encoding encoding ) 58 { 59 this.fileName = fileName; 60 Load( fileName, encoding ); 61 } 62 Load( string fileName, Encoding encoding )63 public virtual void Load( string fileName, Encoding encoding ) 64 { 65 if ( fileName == null ) 66 { 67 return; 68 } 69 70 string text; 71 if (encoding == null) 72 text = File.ReadAllText(fileName); 73 else 74 text = File.ReadAllText(fileName, encoding); 75 76 data = text.ToCharArray(); 77 n = data.Length; 78 } 79 80 public override string SourceName 81 { 82 get 83 { 84 return fileName; 85 } 86 } 87 } 88 } 89