mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-25 17:12:03 +00:00
65 lines
1.5 KiB
C++
65 lines
1.5 KiB
C++
// Copyright 2008 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.
|
|
|
|
// Unicode character groups.
|
|
|
|
// The codes get split into ranges of 16-bit codes
|
|
// and ranges of 32-bit codes. It would be simpler
|
|
// to use only 32-bit ranges, but these tables are large
|
|
// enough to warrant extra care.
|
|
//
|
|
// Using just 32-bit ranges gives 27 kB of data.
|
|
// Adding 16-bit ranges gives 18 kB of data.
|
|
// Adding an extra table of 16-bit singletons would reduce
|
|
// to 16.5 kB of data but make the data harder to use;
|
|
// we don't bother.
|
|
|
|
#ifndef RE2_UNICODE_GROUPS_H__
|
|
#define RE2_UNICODE_GROUPS_H__
|
|
|
|
#include "util/util.h"
|
|
|
|
namespace re2 {
|
|
|
|
struct URange16
|
|
{
|
|
uint16 lo;
|
|
uint16 hi;
|
|
};
|
|
|
|
struct URange32
|
|
{
|
|
uint32 lo;
|
|
uint32 hi;
|
|
};
|
|
|
|
struct UGroup
|
|
{
|
|
const char *name;
|
|
int sign; // +1 for [abc], -1 for [^abc]
|
|
const URange16 *r16;
|
|
int nr16;
|
|
const URange32 *r32;
|
|
int nr32;
|
|
};
|
|
|
|
// Named by property or script name (e.g., "Nd", "N", "Han").
|
|
// Negated groups are not included.
|
|
extern const UGroup unicode_groups[];
|
|
extern const int num_unicode_groups;
|
|
|
|
// Named by POSIX name (e.g., "[:alpha:]", "[:^lower:]").
|
|
// Negated groups are included.
|
|
extern const UGroup posix_groups[];
|
|
extern const int num_posix_groups;
|
|
|
|
// Named by Perl name (e.g., "\\d", "\\D").
|
|
// Negated groups are included.
|
|
extern const UGroup perl_groups[];
|
|
extern const int num_perl_groups;
|
|
|
|
} // namespace re2
|
|
|
|
#endif // RE2_UNICODE_GROUPS_H__
|