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56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
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// Copyright 2010 The RE2 Authors. All Rights Reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#ifndef RE2_SET_H
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#define RE2_SET_H
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#include <utility>
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#include <vector>
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#include "re2/re2.h"
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namespace re2 {
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using std::vector;
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// An RE2::Set represents a collection of regexps that can
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// be searched for simultaneously.
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class RE2::Set {
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public:
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Set(const RE2::Options& options, RE2::Anchor anchor);
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~Set();
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// Add adds regexp pattern to the set, interpreted using the RE2 options.
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// (The RE2 constructor's default options parameter is RE2::UTF8.)
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// Add returns the regexp index that will be used to identify
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// it in the result of Match, or -1 if the regexp cannot be parsed.
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// Indices are assigned in sequential order starting from 0.
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// Error returns do not increment the index.
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// If an error occurs and error != NULL, *error will hold an error message.
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int Add(const StringPiece& pattern, string* error);
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// Compile prepares the Set for matching.
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// Add must not be called again after Compile.
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// Compile must be called before FullMatch or PartialMatch.
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// Compile may return false if it runs out of memory.
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bool Compile();
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// Match returns true if text matches any of the regexps in the set.
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// If so, it fills v with the indices of the matching regexps.
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bool Match(const StringPiece& text, vector<int>* v) const;
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private:
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RE2::Options options_;
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RE2::Anchor anchor_;
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vector<re2::Regexp*> re_;
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re2::Prog* prog_;
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bool compiled_;
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//DISALLOW_EVIL_CONSTRUCTORS(Set);
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Set(const Set&);
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void operator=(const Set&);
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};
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} // namespace re2
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#endif // RE2_SET_H
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