1324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/* 2324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * [The "BSD licence"] 3324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Copyright (c) 2005-2008 Terence Parr 4324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * All rights reserved. 5324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 6324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Conversion to C#: 7324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Copyright (c) 2008-2009 Sam Harwell, Pixel Mine, Inc. 8324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * All rights reserved. 9324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 10324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Redistribution and use in source and binary forms, with or without 11324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * modification, are permitted provided that the following conditions 12324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * are met: 13324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 1. Redistributions of source code must retain the above copyright 14324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * notice, this list of conditions and the following disclaimer. 15324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 2. Redistributions in binary form must reproduce the above copyright 16324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * notice, this list of conditions and the following disclaimer in the 17324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * documentation and/or other materials provided with the distribution. 18324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 3. The name of the author may not be used to endorse or promote products 19324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * derived from this software without specific prior written permission. 20324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 21324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 32324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 33324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruvernamespace Antlr.Runtime 34324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 35324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver using Encoding = System.Text.Encoding; 36324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver using File = System.IO.File; 37324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 38324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver /** <summary> 39324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * This is a char buffer stream that is loaded from a file 40324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * all at once when you construct the object. This looks very 41324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * much like an ANTLReader or ANTLRInputStream, but it's a special case 42324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * since we know the exact size of the object to load. We can avoid lots 43324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * of data copying. 44324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * </summary> 45324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 46324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver [System.Serializable] 47324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver [System.Security.Permissions.FileIOPermission(System.Security.Permissions.SecurityAction.Demand, Unrestricted = true)] 48324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public class ANTLRFileStream : ANTLRStringStream 49324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 50324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver protected string fileName; 51324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 52324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public ANTLRFileStream( string fileName ) 53324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : this( fileName, null ) 54324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 55324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 56324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 57324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public ANTLRFileStream( string fileName, Encoding encoding ) 58324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 59324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver this.fileName = fileName; 60324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Load( fileName, encoding ); 61324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 62324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 63324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public virtual void Load( string fileName, Encoding encoding ) 64324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 65324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if ( fileName == null ) 66324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 67324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return; 68324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 69324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 70324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver string text; 71324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if (encoding == null) 72324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver text = File.ReadAllText(fileName); 73324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver else 74324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver text = File.ReadAllText(fileName, encoding); 75324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 76324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver data = text.ToCharArray(); 77324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver n = data.Length; 78324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 79324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 80324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public override string SourceName 81324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 82324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver get 83324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 84324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return fileName; 85324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 86324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 87324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 88324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 89