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/*
* [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;
}
}
}
}
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