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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 "antlr4-common.h"
namespace antlr4 {
namespace tree {
namespace pattern {
/// <summary>
/// A chunk is either a token tag, a rule tag, or a span of literal text within a
/// tree pattern.
/// <p/>
/// The method <seealso cref="ParseTreePatternMatcher#split(String)"/> returns a list of
/// chunks in preparation for creating a token stream by
/// <seealso cref="ParseTreePatternMatcher#tokenize(String)"/>. From there, we get a parse
/// tree from with <seealso cref="ParseTreePatternMatcher#compile(String, int)"/>. These
/// chunks are converted to <seealso cref="RuleTagToken"/>, <seealso cref="TokenTagToken"/>, or the
/// regular tokens of the text surrounding the tags.
/// </summary>
class ANTLR4CPP_PUBLIC Chunk {
public:
Chunk() = default;
Chunk(Chunk const&) = default;
virtual ~Chunk();
Chunk& operator=(Chunk const&) = default;
/// This method returns a text representation of the tag chunk. Labeled tags
/// are returned in the form {@code label:tag}, and unlabeled tags are
/// returned as just the tag name.
virtual std::string toString() {
std::string str;
return str;
}
};
} // namespace pattern
} // namespace tree
} // namespace antlr4
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3 entries across 3 versions & 1 rubygems