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/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
* Use of this file is governed by the BSD 3-clause license that
* can be found in the LICENSE.txt file in the project root.
*/
#pragma once
#include "IntStream.h"
#include "misc/Interval.h"
namespace antlr4 {
/// A source of characters for an ANTLR lexer.
class ANTLR4CPP_PUBLIC CharStream : public IntStream {
public:
virtual ~CharStream();
/// This method returns the text for a range of characters within this input
/// stream. This method is guaranteed to not throw an exception if the
/// specified interval lies entirely within a marked range. For more
/// information about marked ranges, see IntStream::mark.
///
/// <param name="interval"> an interval within the stream </param>
/// <returns> the text of the specified interval
/// </returns>
/// <exception cref="NullPointerException"> if {@code interval} is {@code null} </exception>
/// <exception cref="IllegalArgumentException"> if {@code interval.a < 0}, or if
/// {@code interval.b < interval.a - 1}, or if {@code interval.b} lies at or
/// past the end of the stream </exception>
/// <exception cref="UnsupportedOperationException"> if the stream does not support
/// getting the text of the specified interval </exception>
virtual std::string getText(const misc::Interval &interval) = 0;
virtual std::string toString() const = 0;
};
} // namespace antlr4
Version data entries
3 entries across 3 versions & 1 rubygems