| /* |
| * [The "BSD licence"] |
| * Copyright (c) 2005-2008 Terence Parr |
| * All rights reserved. |
| * |
| * Conversion to C#: |
| * Copyright (c) 2008-2009 Sam Harwell, Pixel Mine, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| namespace Antlr.Runtime |
| { |
| using Encoding = System.Text.Encoding; |
| using File = System.IO.File; |
| |
| /** <summary> |
| * This is a char buffer stream that is loaded from a file |
| * all at once when you construct the object. This looks very |
| * much like an ANTLReader or ANTLRInputStream, but it's a special case |
| * since we know the exact size of the object to load. We can avoid lots |
| * of data copying. |
| * </summary> |
| */ |
| [System.Serializable] |
| [System.Security.Permissions.FileIOPermission(System.Security.Permissions.SecurityAction.Demand, Unrestricted = true)] |
| public class ANTLRFileStream : ANTLRStringStream |
| { |
| protected string fileName; |
| |
| public ANTLRFileStream( string fileName ) |
| : this( fileName, null ) |
| { |
| } |
| |
| public ANTLRFileStream( string fileName, Encoding encoding ) |
| { |
| this.fileName = fileName; |
| Load( fileName, encoding ); |
| } |
| |
| public virtual void Load( string fileName, Encoding encoding ) |
| { |
| if ( fileName == null ) |
| { |
| return; |
| } |
| |
| string text; |
| if (encoding == null) |
| text = File.ReadAllText(fileName); |
| else |
| text = File.ReadAllText(fileName, encoding); |
| |
| data = text.ToCharArray(); |
| n = data.Length; |
| } |
| |
| public override string SourceName |
| { |
| get |
| { |
| return fileName; |
| } |
| } |
| } |
| } |