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// [The "BSD licence"]
// Copyright (c) 2006-2007 Kay Roepke 2010 Alan Condit
// 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.
#import "ANTLRIntStream.h"
#define ANTLRCharStreamEOF -1
@protocol ANTLRCharStream < ANTLRIntStream >
- (NSString *) substringWithRange:(NSRange) theRange;
/** Get the ith character of lookahead. This is the same usually as
* LA(i). This will be used for labels in the generated
* lexer code. I'd prefer to return a char here type-wise, but it's
* probably better to be 32-bit clean and be consistent with LA.
*/
- (NSInteger)LT:(NSInteger) i;
// ANTLR tracks the line information automatically
- (NSInteger) getLine;
// Because this stream can rewind, we need to be able to reset the line
- (void) setLine:(NSInteger) theLine;
// The index of the character relative to the beginning of the line 0..n-1
- (NSInteger) getCharPositionInLine;
- (void) setCharPositionInLine:(NSInteger) thePos;
@end
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