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