chromium/third_party/icu/source/i18n/regexst.cpp

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
//
//  regexst.h
//
//  Copyright (C) 2004-2015, International Business Machines Corporation and others.
//  All Rights Reserved.
//
//  This file contains class RegexStaticSets
//
//  This class is internal to the regular expression implementation.
//  For the public Regular Expression API, see the file "unicode/regex.h"
//
//  RegexStaticSets groups together the common UnicodeSets that are needed
//   for compiling or executing RegularExpressions.  This grouping simplifies
//   the thread safe lazy creation and sharing of these sets across
//   all instances of regular expressions.
//
#include "unicode/utypes.h"

#if !UCONFIG_NO_REGULAR_EXPRESSIONS

#include "unicode/unistr.h"
#include "unicode/uniset.h"
#include "unicode/uchar.h"
#include "unicode/regex.h"
#include "uprops.h"
#include "cmemory.h"
#include "cstring.h"
#include "uassert.h"
#include "ucln_in.h"
#include "umutex.h"

#include "regexcst.h"   // Contains state table for the regex pattern parser.
                        //   generated by a Perl script.
#include "regexst.h"

U_NAMESPACE_BEGIN

// "Rule Char" Characters are those with special meaning, and therefore
//    need to be escaped to appear as literals in a regexp.
constexpr char16_t const *gRuleSet_rule_chars = …;

//
//   The backslash escape characters that ICU's unescape() function will handle.
//
constexpr char16_t const *gUnescapeChars = …;

//
//  Unicode Set pattern for Regular Expression  \w
//
constexpr char16_t const *gIsWordPattern = …;

//
//  Unicode Set Definitions for Regular Expression  \s
//
constexpr  char16_t const *gIsSpacePattern = …;

//
//  UnicodeSets used in implementation of Grapheme Cluster detection, \X
//
constexpr char16_t const *gGC_ControlPattern = …;
constexpr char16_t const *gGC_ExtendPattern  = …;
constexpr char16_t const *gGC_LPattern       = …;
constexpr char16_t const *gGC_VPattern       = …;
constexpr char16_t const *gGC_TPattern       = …;
constexpr char16_t const *gGC_LVPattern      = …;
constexpr char16_t const *gGC_LVTPattern     = …;


RegexStaticSets *RegexStaticSets::gStaticSets = …;
UInitOnce gStaticSetsInitOnce { … };


RegexStaticSets::RegexStaticSets(UErrorCode *status) { … }


RegexStaticSets::~RegexStaticSets() { … }


//------------------------------------------------------------------------------
//
//   regex_cleanup      Memory cleanup function, free/delete all
//                      cached memory.  Called by ICU's u_cleanup() function.
//
//------------------------------------------------------------------------------

U_CDECL_BEGIN
static UBool U_CALLCONV
regex_cleanup() { … }

static void U_CALLCONV initStaticSets(UErrorCode &status) { … }
U_CDECL_END

void RegexStaticSets::initGlobals(UErrorCode *status) { … }

U_NAMESPACE_END
#endif  // !UCONFIG_NO_REGULAR_EXPRESSIONS