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