mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-14 19:45:11 +00:00
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
|
// 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
|