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BRRE.pas
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unit BRRE;
(**********************************************************
** BRRE Regular Expression Library *
***********************************************************
**
** This file is part of the BRRE Regular Expression Library.
** Copyright (C) 2011-2012 by Benjamin Rosseaux
**
** See the file COPYING.BRRE, included in this distribution,
** for details about the copyright.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**
*)
// Define {$define BRREStrictUTF8} if you do want strict valid UTF8 !
{$define BRREUseVirtualStack}
{$ifdef fpc}
{$mode delphi}
{$ifdef cpui386}
{$define cpu386}
{$endif}
{$ifdef cpu386}
{$asmmode intel}
{$endif}
{$ifdef cpuamd64}
{$asmmode intel}
{$endif}
{$ifdef FPC_LITTLE_ENDIAN}
{$define LITTLE_ENDIAN}
{$else}
{$ifdef FPC_BIG_ENDIAN}
{$define BIG_ENDIAN}
{$endif}
{$endif}
{-$pic off}
{$define caninline}
{$ifdef FPC_HAS_TYPE_EXTENDED}
{$define HAS_TYPE_EXTENDED}
{$else}
{$undef HAS_TYPE_EXTENDED}
{$endif}
{$ifdef FPC_HAS_TYPE_DOUBLE}
{$define HAS_TYPE_DOUBLE}
{$else}
{$undef HAS_TYPE_DOUBLE}
{$endif}
{$ifdef FPC_HAS_TYPE_SINGLE}
{$define HAS_TYPE_SINGLE}
{$else}
{$undef HAS_TYPE_SINGLE}
{$endif}
{$else}
{$realcompatibility off}
{$localsymbols on}
{$define LITTLE_ENDIAN}
{$ifndef cpu64}
{$define cpu32}
{$endif}
{$define HAS_TYPE_EXTENDED}
{$define HAS_TYPE_DOUBLE}
{$define HAS_TYPE_SINGLE}
{$endif}
{$ifdef win32}
{$define windows}
{$endif}
{$ifdef win64}
{$define windows}
{$endif}
{$ifdef wince}
{$define windows}
{$endif}
{$rangechecks off}
{$extendedsyntax on}
{$writeableconst on}
{$hints off}
{$booleval off}
{$typedaddress off}
{$stackframes off}
{$varstringchecks on}
{$typeinfo on}
{$overflowchecks off}
{$longstrings on}
{$openstrings on}
{$define BRRERegExpUseAssert}
interface
uses SysUtils,Classes,SyncObjs,BRREUnicode;
const BRREInitialized:boolean=false;
BRREVersion=4;
BRREVersionStr='1.00.2012.11.02.0022';
BRREVersionString:ansistring=BRREVersionStr;
brrefDELIMITERS=1 shl 0;
brrefBACKTRACKING=1 shl 1;
brrefFREESPACING=1 shl 2;
brrefIGNORECASE=1 shl 3;
brrefSINGLELINE=1 shl 4;
brrefMULTILINE=1 shl 5;
brrefLATIN1=1 shl 6;
brrefUTF8=1 shl 7;
brrefUTF8CODEUNITS=1 shl 8;
brrefNAMED=1 shl 9;
brrefCONTINUATION=1 shl 10;
brrefAUTO=1 shl 11;
brrefWHOLEONLY=1 shl 12;
brrefCOMBINEOPTIMIZATION=1 shl 13;
brrefUNGREEDY=1 shl 14;
brrefLONGEST=1 shl 15;
brrefNFA=1 shl 16;
brrefDFA=1 shl 17;
brrefNOBACKTRACKING=1 shl 18;
brrefPREFILTER=1 shl 19;
brrefPREFILTEROPT=1 shl 20;
brrefAUTOCALLOUT=1 shl 21;
brrefNOTEMPTY=1 shl 22;
brrefRANGE=1 shl 23;
brreMaxDFAStates=4096;
brrefrNOINSTANCE=-$7fffffff;
brreoskALT=0;
brreoskPLUS=1;
brreoskQUEST=2;
brreoskSTAR=3;
brreoNONE=0;
brreoCHAR=1;
brreoCHARSINGLE=2;
brreoANY=3;
brreoMATCH=4;
brreoFAIL=5;
brreoJMP=6;
brreoSPLIT=7;
brreoSPLITLONGEST=8;
brreoBEGIN=9;
brreoEND=10;
brreoBOML=11;
brreoEOML=12;
brreoBOSL=13;
brreoEOSL=14;
brreoBOS=15;
brreoEOS=16;
brreoBRK=17;
brreoNBRK=18;
brreoEXACT=19;
brreoGREEDY=20;
brreoLAZY=21;
brreoPOSSESSIVE=22;
brreoSTOP=23;
brreoBACKREF=24;
brreoBACKREFI=25;
brreoTESTBACKREF=26;
brreoTEST=27;
brreoCONTINUE=28;
brreoLOOKAHEADFALSE=29;
brreoLOOKAHEADTRUE=30;
brreoLOOKBEHINDFALSE=31;
brreoLOOKBEHINDTRUE=32;
brreoPARALLEL=33;
brreoONEPASS=34;
brreoFIXEDSTRINGSEARCH=35;
brreoPREFIX=36;
brreoPREFIXCHAR=37;
brreoCALLOUT=38;
brreoRECURSIVE=39;
brreoUNDEFINED=longint(-1);
brrecINFINITY=-1;
brreucrWORDS=0;
brreucrDIGITS=1;
brreucrWHITESPACES=2;
brreucrLAST=brreucrWHITESPACES;
brresuDONOTKNOW=-1;
brresuNOUTF8=0;
brresuPOSSIBLEUTF8=1;
brresuISUTF8=2;
brreucACCEPT=0;
brreucERROR=16;
brreqkGREEDY=0;
brreqkLAZY=1;
brreqkPOSSESSIVE=2;
BRREHashMapItemsPerBucketsThreshold=5;
BRREHashMapMaxSize=1 shl 28;
brrefssmBRUTEFORCE=0;
brrefssmSHIFTOR=1;
brrefssmBOYERMOORE=2;
brrepmBACKTRACKINGNFA=0;
brrepmPARALLELNFA=1;
brrepmONEPASSNFA=2;
brrepmFIXEDSTRINGSEARCH=3;
brresfEmptyBeginLine=1 shl 0;
brresfEmptyEndLine=1 shl 1;
brresfEmptyBeginText=1 shl 2;
brresfEmptyEndText=1 shl 3;
brresfEmptyWordBoundary=1 shl 4;
brresfEmptyNonWordBoundary=1 shl 5;
brresfEmptyAllFlags=(1 shl 6)-1;
brresfIndexShift=16;
brresfEmptyShift=6;
brresfRealCapShift=brresfEmptyShift+1;
brresfRealMaxCap=((brresfIndexShift-brresfRealCapShift) shr 1)*2;
brresfCapShift=brresfRealCapShift;
brresfMaxCap=brresfRealMaxCap;
brresfMatchWins=1 shl brresfEmptyShift;
brresfCapMask=((1 shl brresfRealMaxCap)-1) shl brresfRealCapShift;
brresfImpossible=brresfEmptyWordBoundary or brresfEmptyNonWordBoundary;
brresfDFAMatchWins=$1000;
brresfDFALastWord=$2000;
brresfDFAStart=$8000;
brresfDFANeedShift=16;
brresfDFAStartShifted=$80000000;
brreDFAError=-1;
brreDFAFail=0;
brreDFAMatch=1;
brredmNONE=0;
brredmFAST=1;
brredmFULL=2;
brrecorFAIL=0;
brrecorOK=1;
type EBRRESyntaxError=class(Exception);
EBRRENFACollectError=class(Exception);
EBRREMatchLimitOverflow=class(Exception);
EBRREMatchLimitRecursionOverflow=class(Exception);
EBRREMatchLimitStackRecursionOverflow=class(Exception);
PBRREUnicodeCharRange=^TBRREUnicodeCharRange;
TBRREUnicodeCharRange=array[0..1] of longword;
PBRREUnicodeCharRanges=^TBRREUnicodeCharRanges;
TBRREUnicodeCharRanges=array of TBRREUnicodeCharRange;
PBRREUnicodeCharRangeClasses=^TBRREUnicodeCharRangeClasses;
TBRREUnicodeCharRangeClasses=array[0..brreucrLAST] of TBRREUnicodeCharRanges;
TBRREUTF8String=ansistring;
TBRREUCS4Char=longint;
TBRREUCS4CharSigned=longword;
TBRREUCS4String=array of TBRREUCS4Char;
{$ifndef fpc}
{$if Declared(CompilerVersion) and (CompilerVersion>=23.0)}
qword=uint64;
ptruint=NativeUInt;
ptrint=NativeInt;
{$else}
qword=int64;
{$ifdef cpu64}
ptruint=qword;
ptrint=int64;
{$else}
ptruint=longword;
ptrint=longint;
{$endif}
{$ifend}
{$endif}
PBRRELongints=^TBRRELongints;
TBRRELongints=array[0..65535] of longint;
TBRRERegExp=class;
PBRRECalloutBlock=^TBRRECalloutBlock;
TBRRECalloutBlock=packed record
Version:longword;
Instance:TBRRERegExp;
CalloutNumber:longint;
CalloutData:pointer;
Subject:pansichar;
SubjectUnitsLength:longint;
SubjectPointsLength:longint;
Captures:pointer;
CountCaptures:longint;
CodeUnit:longint;
CodePoint:longint;
end;
TBRRECalloutFunc=function(CalloutBlock:PBRRECalloutBlock):longint; cdecl;
PBRREByteMap=^TBRREByteMap;
TBRREByteMap=array[byte] of byte;
TBRRERegExpCharClass=class;
PBRREOnePassStateCharClassAction=^TBRREOnePassStateCharClassAction;
TBRREOnePassStateCharClassAction=record // 32-bit: 16 bytes, 64-bit: 32 bytes
AllNext,Next:PBRREOnePassStateCharClassAction;
CharClass:TBRRERegExpCharClass;
Condition:ptruint;
end;
PBRREOnePassState=^TBRREOnePassState;
TBRREOnePassState=record
MatchCondition,NoAction:longword;
CharClassAction:PBRREOnePassStateCharClassAction;
Action:array[0..0] of longword;
end;
PBRREStringHashMapEntity=^TBRREStringHashMapEntity;
TBRREStringHashMapEntity=record
Key:ansistring;
Value:int64;
end;
TBRREStringHashMapEntities=array of TBRREStringHashMapEntity;
TBRREStringHashMapEntityIndices=array of longint;
TBRREStringHashMap=class
private
function FindCell(const Key:ansistring):longword;
procedure Resize;
protected
function GetValue(const Key:ansistring):int64;
procedure SetValue(const Key:ansistring;const Value:int64);
public
RealSize:longint;
LogSize:longint;
Size:longint;
Entities:TBRREStringHashMapEntities;
EntityToCellIndex:TBRREStringHashMapEntityIndices;
CellToEntityIndex:TBRREStringHashMapEntityIndices;
constructor Create;
destructor Destroy; override;
procedure Clear;
function Add(const Key:ansistring;Value:int64):PBRREStringHashMapEntity;
function Get(const Key:ansistring;CreateIfNotExist:boolean=false):PBRREStringHashMapEntity;
function Delete(const Key:ansistring):boolean;
property Values[const Key:ansistring]:int64 read GetValue write SetValue; default;
end;
TBRREHashableObject=class
public
function HashCode:longword; virtual;
function EqualsTo(OtherObject:TBRREHashableObject):boolean; virtual;
end;
PBRREHashMapEntity=^TBRREHashMapEntity;
TBRREHashMapEntity=record
Key:TBRREHashableObject;
Value:int64;
end;
TBRREHashMapEntities=array of TBRREHashMapEntity;
TBRREHashMapEntityIndices=array of longint;
TBRREHashMap=class
private
function FindCell(const Key:TBRREHashableObject):longword;
procedure Resize;
protected
function GetValue(const Key:TBRREHashableObject):int64;
procedure SetValue(const Key:TBRREHashableObject;const Value:int64);
public
RealSize:longint;
LogSize:longint;
Size:longint;
Entities:TBRREHashMapEntities;
EntityToCellIndex:TBRREHashMapEntityIndices;
CellToEntityIndex:TBRREHashMapEntityIndices;
constructor Create;
destructor Destroy; override;
procedure Clear;
function Add(const Key:TBRREHashableObject;Value:int64):PBRREHashMapEntity;
function Get(const Key:TBRREHashableObject;CreateIfNotExist:boolean=false):PBRREHashMapEntity;
function Delete(const Key:TBRREHashableObject):boolean;
property Values[const Key:TBRREHashableObject]:int64 read GetValue write SetValue; default;
end;
PBRREPointerArray=^TBRREPointerArray;
TBRREPointerArray=array[0..(2147483647 div sizeof(pointer))-1] of pointer;
TBRREPointerList=class
private
List:PBRREPointerArray;
ListCount,ListCapacity:longint;
protected
function GetItem(Index:longint):pointer;
procedure SetItem(Index:longint;Value:pointer);
public
constructor Create;
destructor Destroy; override;
procedure Clear;
function Add(Item:pointer):longint;
function Push(Item:pointer):longint;
function Pop:pointer;
procedure Insert(Index:longint;Item:pointer);
function Find(Item:pointer):longint;
function IndexOf(Item:pointer):longint;
function Contains(Item:pointer):boolean;
procedure Delete(Index:longint);
function Remove(Item:pointer):longint;
procedure Exchange(Index1,Index2:longint);
procedure SetCapacity(NewCapacity:longint);
procedure SetCount(NewCount:longint);
property Count:longint read ListCount write SetCount;
property Capacity:longint read ListCapacity write SetCapacity;
property Items[Index:longint]:pointer read GetItem write SetItem; default;
end;
PBRREPtrValueSelfBalancedTreeValue=^TBRREPtrValueSelfBalancedTreeValue;
TBRREPtrValueSelfBalancedTreeValue=ptrint;
PBRREPtrValueSelfBalancedTreeNode=^TBRREPtrValueSelfBalancedTreeNode;
TBRREPtrValueSelfBalancedTreeNode=record
Parent,Left,Right,PreviousKey,NextKey:PBRREPtrValueSelfBalancedTreeNode;
Level:int64;
Key:ptruint;
Value:TBRREPtrValueSelfBalancedTreeValue;
end;
TBRREPtrValueSelfBalancedTreeKeys=array of ptruint;
TBRREPtrValueSelfBalancedTree=class
protected
procedure Skew(OldParent:PBRREPtrValueSelfBalancedTreeNode);
function Split(OldParent:PBRREPtrValueSelfBalancedTreeNode):boolean;
procedure RebalanceAfterLeafAdd(n:PBRREPtrValueSelfBalancedTreeNode);
procedure DeleteNode(n:PBRREPtrValueSelfBalancedTreeNode);
function First(StartNode:PBRREPtrValueSelfBalancedTreeNode):PBRREPtrValueSelfBalancedTreeNode;
function Next(n:PBRREPtrValueSelfBalancedTreeNode):PBRREPtrValueSelfBalancedTreeNode;
function FindNode(const Key:ptruint):PBRREPtrValueSelfBalancedTreeNode;
procedure ClearNode(var Node:PBRREPtrValueSelfBalancedTreeNode);
procedure OptimizeNode(var Node:PBRREPtrValueSelfBalancedTreeNode;MoreOptimize:boolean);
function GetValue(Key:ptruint):TBRREPtrValueSelfBalancedTreeValue;
procedure SetValue(Key:ptruint;Value:TBRREPtrValueSelfBalancedTreeValue);
public
RootNode:PBRREPtrValueSelfBalancedTreeNode;
FirstKey,LastKey:PBRREPtrValueSelfBalancedTreeNode;
constructor Create;
destructor Destroy; override;
function Find(const Key:ptruint;var Value:TBRREPtrValueSelfBalancedTreeValue):boolean;
function Insert(const Key:ptruint;Value:TBRREPtrValueSelfBalancedTreeValue):PBRREPtrValueSelfBalancedTreeNode;
procedure Remove(const Key:ptruint);
procedure Optimize;
function Keys:TBRREPtrValueSelfBalancedTreeKeys;
property Values[Key:ptruint]:TBRREPtrValueSelfBalancedTreeValue read GetValue write SetValue; default;
end;
TBRRERegExpPrefilterNode=class;
TBRRERegExpPrefilterNodeList=class(TBRREPointerList)
protected
function GetNodeItem(Index:longint):TBRRERegExpPrefilterNode;
procedure SetNodeItem(Index:longint;Value:TBRRERegExpPrefilterNode);
public
property Items[Index:longint]:TBRRERegExpPrefilterNode read GetNodeItem write SetNodeItem; default;
end;
TBRRERegExpPrefilterNodeOperation=(brrepfnoANY,brrepfnoATOM,brrepfnoAND,brrepfnoOR);
TBRRERegExpPrefilterNode=class
public
Operation:TBRRERegExpPrefilterNodeOperation;
Subs:TBRRERegExpPrefilterNodeList;
Atom:ansistring;
Exact:boolean;
constructor Create;
destructor Destroy; override;
function Clone:TBRRERegExpPrefilterNode;
function Expression:ansistring;
function ShortExpression:ansistring;
function SQLBooleanFullTextExpression:ansistring;
function SQLExpression(const Field:ansistring):ansistring;
end;
TBRRERegExpOpcode=byte;
TBRRERegExpFlags=longword;
TBRRERegExpCharClassRange=class
public
CharClass:TBRRERegExpCharClass;
Previous,Next,Left,Right:TBRRERegExpCharClassRange;
Lo,Hi:longword;
constructor Create(ACharClass:TBRRERegExpCharClass;ALo,AHi:longword);
constructor CreateBefore(ACharClass:TBRRERegExpCharClass;ABefore:TBRRERegExpCharClassRange;ALo,AHi:longword);
constructor CreateAfter(ACharClass:TBRRERegExpCharClass;AAfter:TBRRERegExpCharClassRange;ALo,AHi:longword);
destructor Destroy; override;
end;
TBRRERegExpCharClassCharSet=set of ansichar;
TBRRERegExpCharClassRanges=array of TBRRERegExpCharClassRange;
TBRRERegExpCharClass=class(TBRREHashableObject)
public
RegExp:TBRRERegExp;
Previous,Next:TBRRERegExpCharClass;
First,Last,Root:TBRRERegExpCharClassRange;
CharSet:TBRRERegExpCharClassCharSet;
Inverted:longbool;
Canonicalized:longbool;
constructor Create(ARegExp:TBRRERegExp);
destructor Destroy; override;
procedure Clear;
procedure Dump;
procedure DebugDump;
procedure Optimize;
procedure AddRange(Lo,Hi:longword;IgnoreCase:boolean=false);
procedure AddChar(c:longword;IgnoreCase:boolean=false);
procedure AddUnicodeCategory(CategoryFlags:longword;IgnoreCase:boolean=false);
procedure AddUnicodeScript(Script:longword;IgnoreCase:boolean=false);
procedure AddUnicodeBlock(Block:longword;IgnoreCase:boolean=false);
procedure Combine(From:TBRRERegExpCharClass);
function Subtraction(From,SubtractWith:TBRRERegExpCharClass):boolean;
function Intersection(From,SubtractWith:TBRRERegExpCharClass):boolean;
procedure TakeoverCombine(From:TBRRERegExpCharClass);
procedure TakeoverDirtyCombine(From:TBRRERegExpCharClass);
procedure Assign(From:TBRRERegExpCharClass);
procedure Append(From:TBRRERegExpCharClass);
procedure Invert;
procedure Canonicalize;
procedure CompileBinarySearchTree;
procedure CompileCharset;
procedure Finalize;
function Count:longword;
function Contains(c:longword):boolean;
function Intersects(Other:TBRRERegExpCharClass):boolean;
function IsSingle:boolean;
function HashCode:longword; override;
function EqualsTo(OtherObject:TBRREHashableObject):boolean; override;
end;
TBRRERegExpCharClasses=class(TBRREPointerList)
protected
function GetNodeItem(Index:longint):TBRRERegExpCharClass;
procedure SetNodeItem(Index:longint;Value:TBRRERegExpCharClass);
public
property Items[Index:longint]:TBRRERegExpCharClass read GetNodeItem write SetNodeItem; default;
end;
TBRRERegExpCapture=record
StartCodePoint,EndCodePoint:longint;
StartCodeUnit,EndCodeUnit:longint;
end;
TBRRERegExpCaptures=array of TBRRERegExpCapture;
TBRRERegExpMultipleCaptures=array of TBRRERegExpCaptures;
TBRRERegExpStrings=array of ansistring;
TBRRERegExpMultipleStrings=array of TBRRERegExpStrings;
TBRRERegExpCaptureStart=record
StartCodePoint,StartCodeUnit:longint;
end;
TBRRERegExpCaptureStarts=array of TBRRERegExpCaptureStart;
TBRRERegExpValue=longint;
PBRRERegExpNFAInstruction=^TBRRERegExpNFAInstruction;
TPBRRERegExpNFAInstructions=array of PBRRERegExpNFAInstruction;
PPBRRERegExpNFAInstructionsStatic=^TPBRRERegExpNFAInstructionsStatic;
TPBRRERegExpNFAInstructionsStatic=array[0..65535] of PBRRERegExpNFAInstruction;
TBRRERegExpNFAInstruction=record // on 32-bit: 16 bytes, on 64-bit: 32 bytes
IDandOpcode:ptruint; // first 8-bit = Opcode, remain bits = ID
Value:ptrint; // Value can be also a PBRRERegExpNFAInstruction pointer at the brreoTEST opcode, so ptrint as datatype
x,y:PBRRERegExpNFAInstruction;
end;
TBRRERegExpNFAInstructions=array of TBRRERegExpNFAInstruction;
PBRRERegExpState=^TBRRERegExpState;
TBRRERegExpState=record
Captures:TBRRERegExpCaptures;
ReferenceCount:longint;
NextFree:PBRRERegExpState;
NextUsed:PBRRERegExpState;
end;
PBRREParallelNFAThread=^TBRREParallelNFAThread;
TBRREParallelNFAThread=record
Instruction:PBRRERegExpNFAInstruction;
State:PBRRERegExpState;
end;
PBRREParallelNFAThreadsStatic=^TBRREParallelNFAThreadsStatic;
TBRREParallelNFAThreadsStatic=array[0..65535] of TBRREParallelNFAThread;
TBRREParallelNFAThreads=array of TBRREParallelNFAThread;
TBRRERegExpByteSet=set of byte;
PBRREParallelNFAThreadList=^TBRREParallelNFAThreadList;
TBRREParallelNFAThreadList=record
Threads:TBRREParallelNFAThreads;
Count:longint;
GenerationID:ptruint;
end;
TBRRERegExpShiftOrPatternMaskBoyerMooreSkip=array[ansichar] of longword;
TBRRERegExpBoyerMooreNext=array of longint;
TBRRERegExpOnePassCaptures=array of longint;
PBRREDFAState=^TBRREDFAState;
TPBRREDFAStates=array of PBRREDFAState;
PPBRREDFANextStatesByteBlock=^TPBRREDFANextStatesByteBlock;
TPBRREDFANextStatesByteBlock=array[byte] of PBRREDFAState;
PBRREDFARangePagedNextStates=^TBRREDFARangePagedNextStates;
TBRREDFARangePagedNextStates=record
Next:PBRREDFARangePagedNextStates;
Page:longword;
NextStates:TPBRREDFANextStatesByteBlock;
end;
TBRREDFA=class;
PBRRERegExpProgramDataInstance=^TBRRERegExpProgramDataInstance;
TBRREDFAState=record
Flags:longword;
Instructions:TPBRRERegExpNFAInstructions;
CountInstructions:longint;
RangePagedNextStates:PBRREDFARangePagedNextStates;
Latin1NextStates:TPBRREDFANextStatesByteBlock;
end;
PBRREDFAStateHashMapEntity=^TBRREDFAStateHashMapEntity;
TBRREDFAStateHashMapEntity=record
Key:PBRREDFAState;
Value:int64;
end;
TBRREDFAStateHashMapEntities=array of TBRREDFAStateHashMapEntity;
TBRREDFAStateHashMapEntityIndices=array of longint;
TBRREDFAStateHashMap=class
private
RealSize:longint;
LogSize:longint;
Size:longint;
Entities:TBRREDFAStateHashMapEntities;
EntityToCellIndex:TBRREDFAStateHashMapEntityIndices;
CellToEntityIndex:TBRREDFAStateHashMapEntityIndices;
function FindCell(const Key:PBRREDFAState):longword;
procedure Resize;
public
constructor Create;
destructor Destroy; override;
procedure Clear;
function Get(const Key:PBRREDFAState):PBRREDFAState;
function Add(const Key:PBRREDFAState):PBRREDFAStateHashMapEntity;
function Delete(const Key:PBRREDFAState):boolean;
property Keys[const Key:PBRREDFAState]:PBRREDFAState read Get; default;
end;
TBRRERegExpProgram=class;
TBRRERegExpDataInstance=class;
TBRREFixedStringSearch=class
public
RegExp:TBRRERegExp;
RegExpProgram:TBRRERegExpProgram;
RegExpDataInstance:TBRRERegExpDataInstance;
RegExpProgramData:PBRRERegExpProgramDataInstance;
constructor Create(ARegExpProgram:TBRRERegExpProgram;ARegExpDataInstance:TBRRERegExpDataInstance;ARegExpProgramData:PBRRERegExpProgramDataInstance);
destructor Destroy; override;
function Search(const Input:ansistring;var CodePoint,CodeUnit:longint):boolean;
function PtrSearch(const Input:pansichar;var CodePoint,CodeUnit:longint):boolean;
end;
PBRREDFAStatePool=^TBRREDFAStatePool;
TBRREDFAStatePool=record
Next:PBRREDFAStatePool;
States:pointer;
EndState:pointer;
NextState:pointer;
end;
TBRREDFA=class
private
StackInstructions:TPBRRERegExpNFAInstructions;
ByteMap:TBRREByteMap;
ByteCharSetMap:TBRRERegExpCharClassCharSet;
PrefixCharRangeLow,PrefixCharRangeHigh:longword;
procedure ConnectState(State,NextState:PBRREDFAState;CurrentChar:longword;Fast:boolean); {$ifdef caninline}inline;{$endif}
function CacheState(State:PBRREDFAState):PBRREDFAState; {$ifdef caninline}inline;{$endif}
procedure FastAddInstructionThread(State:PBRREDFAState;Instruction:PBRRERegExpNFAInstruction);
function FastProcessNextState(State:PBRREDFAState;CurrentChar:longword):PBRREDFAState;
function SearchFastLatin1(const Input:ansistring):longint;
function SearchFastLatin1FirstChar(const Input:ansistring):longint;
function SearchFastUTF8(const Input:ansistring):longint;
function SearchFastUTF8FirstChar(const Input:ansistring):longint;
function PtrSearchFastLatin1(const Input:pansichar):longint;
function PtrSearchFastLatin1FirstChar(const Input:pansichar):longint;
function PtrSearchFastUTF8(const Input:pansichar):longint;
function PtrSearchFastUTF8FirstChar(const Input:pansichar):longint;
procedure FullAddInstructionThread(State:PBRREDFAState;Instruction:PBRRERegExpNFAInstruction;Flags:longword);
function FullGetStartState(LastChar,CurrentChar:longword):PBRREDFAState;
function FullProcessNextState(State:PBRREDFAState;CurrentChar:longword):PBRREDFAState;
function SearchFullLatin1(const Input:ansistring):longint;
function SearchFullLatin1FirstChar(const Input:ansistring):longint;
function SearchFullUTF8(const Input:ansistring):longint;
function SearchFullUTF8FirstChar(const Input:ansistring):longint;
function PtrSearchFullLatin1(const Input:pansichar):longint;
function PtrSearchFullLatin1FirstChar(const Input:pansichar):longint;
function PtrSearchFullUTF8(const Input:pansichar):longint;
function PtrSearchFullUTF8FirstChar(const Input:pansichar):longint;
public
RegExp:TBRRERegExp;
RegExpProgram:TBRRERegExpProgram;
StateCache:TBRREDFAStateHashMap;
StartState:PBRREDFAState;
TemporaryState,NewState:TBRREDFAState;
StartStates:array[0..brresfEmptyAllFlags] of PBRREDFAState;
CountStatesCached:longint;
RegExpDataInstance:TBRRERegExpDataInstance;
RegExpProgramData:PBRRERegExpProgramDataInstance;
StartCodePoint,StartCodeUnit,EndCodePoint,EndCodeUnit:longint;
NextStatesSize,DFAStateSize:ptrint;
StatePoolUsed,StatePoolFree:PBRREDFAStatePool;
StatePoolSize,StatePoolSizePowerOfTwo:ptruint;
constructor Create(ARegExpProgram:TBRRERegExpProgram;ARegExpDataInstance:TBRRERegExpDataInstance;ARegExpProgramData:PBRRERegExpProgramDataInstance);
destructor Destroy; override;
procedure DestroyStatePool(StatePool:PBRREDFAStatePool);
procedure FreeUsedStatePool;
function AllocateNewStatePool:PBRREDFAStatePool;
function GetState:PBRREDFAState;
function TakeoverState(TakeoverFrom:PBRREDFAState):PBRREDFAState;
procedure FreeState(State:PBRREDFAState);
procedure Reset;
function Search(const Input:ansistring;var AStartCodePoint,AStartCodeUnit,AEndCodePoint,AEndCodeUnit:longint):longint;
function PtrSearch(const Input:pansichar;var AStartCodePoint,AStartCodeUnit,AEndCodePoint,AEndCodeUnit:longint):longint;
end;
TBRREOnePassNFA=class
private
StartCodePoint,EndCodePoint:longint;
StartCodeUnit,EndCodeUnit:longint;
WorkCaptures:TBRRERegExpOnePassCaptures;
MatchCaptures:TBRRERegExpOnePassCaptures;
procedure CopyWorkCapturesToMatchCaptures(Count:longint); {$ifdef caninline}inline;{$endif}
function SearchLatin1(const Input:ansistring;var CodePoint,CodeUnit:longint):boolean;
function SearchUTF8(const Input:ansistring;var CodePoint,CodeUnit:longint):boolean;
function PtrSearchLatin1(const Input:pansichar;var CodePoint,CodeUnit:longint):boolean;
function PtrSearchUTF8(const Input:pansichar;var CodePoint,CodeUnit:longint):boolean;
public
RegExp:TBRRERegExp;
RegExpProgram:TBRRERegExpProgram;
RegExpDataInstance:TBRRERegExpDataInstance;
RegExpProgramData:PBRRERegExpProgramDataInstance;
constructor Create(ARegExpProgram:TBRRERegExpProgram;ARegExpDataInstance:TBRRERegExpDataInstance;ARegExpProgramData:PBRRERegExpProgramDataInstance);
destructor Destroy; override;
function Search(const Input:ansistring;var CodePoint,CodeUnit:longint):boolean;
function PtrSearch(const Input:pansichar;var CodePoint,CodeUnit:longint):boolean;
end;
PBRREBitstateNFAJob=^TBRREBitstateNFAJob;
TBRREBitstateNFAJob=record
Instruction:PBRRERegExpNFAInstruction;
CodePoint,CodeUnit,Argument:longint;
end;
TBRREBitstateNFAJobs=array of TBRREBitstateNFAJob;
TBRREBitstateNFAVisited=array of longword;
TBRREBitstateNFA=class
private
function ShouldVisit(Instruction:PBRRERegExpNFAInstruction;CodeUnit:longint):boolean;
procedure Push(Instruction:PBRRERegExpNFAInstruction;CodePoint,CodeUnit,Argument:longint);
public
RegExp:TBRRERegExp;
RegExpProgram:TBRRERegExpProgram;
RegExpDataInstance:TBRRERegExpDataInstance;
RegExpProgramData:PBRRERegExpProgramDataInstance;
Visited:TBRREBitstateNFAVisited;
CountVisited:longint;
Jobs:TBRREBitstateNFAJobs;
CountJobs:longint;
MaxJob:longint;
Len:longint;
BaseCodeUnit:longint;
constructor Create(ARegExpProgram:TBRRERegExpProgram;ARegExpDataInstance:TBRRERegExpDataInstance);
destructor Destroy; override;
function Search(const Input:ansistring;var CodePoint,CodeUnit:longint;ALen,ABaseCodeUnit,EndCodeUnit:longint):boolean;
function PtrSearch(const Input:pansichar;var CodePoint,CodeUnit:longint;ALen,ABaseCodeUnit,EndCodeUnit:longint):boolean;
end;
TBRREParallelNFA=class
private
StackThreads:TBRREParallelNFAThreads;
States:TBRREPointerList;
FreeState:PBRRERegExpState;
UsedState:PBRRERegExpState;
InstanceCurrentList:PBRREParallelNFAThreadList;
InstanceNewList:PBRREParallelNFAThreadList;
InputStr:ansistring;
InputPtr:pansichar;
CountOfStateCaptures,CaptureOffset:longint;
function StateNew(Count:longint):PBRRERegExpState;
procedure StateRelease(State:PBRRERegExpState);
procedure ThreadAdd(List:PBRREParallelNFAThreadList;Thread:TBRREParallelNFAThread;CodePoint,CodeUnit:longint;CurrentWorkChar:longword);
procedure PtrThreadAdd(List:PBRREParallelNFAThreadList;Thread:TBRREParallelNFAThread;CodePoint,CodeUnit:longint;CurrentWorkChar:longword);
public
RegExp:TBRRERegExp;
RegExpProgram:TBRRERegExpProgram;
RegExpDataInstance:TBRRERegExpDataInstance;
RegExpProgramData:PBRRERegExpProgramDataInstance;
constructor Create(ARegExpProgram:TBRRERegExpProgram;ARegExpDataInstance:TBRRERegExpDataInstance;ARegExpProgramData:PBRRERegExpProgramDataInstance);
destructor Destroy; override;
function Search(const AInput:ansistring;var CodePoint,CodeUnit:longint):boolean;
function PtrSearch(const AInput:pansichar;var CodePoint,CodeUnit:longint):boolean;
end;
PBRRERegExpBacktrackingStackItem=^TBRRERegExpBacktrackingStackItem;
TBRRERegExpBacktrackingStackItem=record
CurrentWorkChar:longword;
Instruction:PBRRERegExpNFAInstruction;
CurrentCodePoint:longint;
CurrentCodeUnit:longint;
Arguments:array[0..3] of longword;
end;
PBRRERegExpBacktrackingStackItemsStatic=^TBRRERegExpBacktrackingStackItemsStatic;
TBRRERegExpBacktrackingStackItemsStatic=array[0..65535] of TBRRERegExpBacktrackingStackItem;
TBRRERegExpBacktrackingStackItems=array of TBRRERegExpBacktrackingStackItem;
PBRREBacktrackingNFAMarkStackItem=^TBRREBacktrackingNFAMarkStackItem;
TBRREBacktrackingNFAMarkStackItem=record
CodePoint:longint;
CodeUnit:longint;
Char:longword;
AlignDummy:longword;
end;
TBRRERegExpMarkStackItems=array of TBRREBacktrackingNFAMarkStackItem;
TBRREBacktrackingNFA=class
private
InputStr:ansistring;
InputPtr:pansichar;
InputPointsLength:longint;
InputUnitsLength:longint;
InputIsUTF8:boolean;
BacktrackingStack:TBRRERegExpBacktrackingStackItems;
BacktrackingStackPointer:longint;
MarkStack:TBRRERegExpMarkStackItems;
MarkStackPointer:longint;
MatchCounter:longint;
AllFirstCharsClass:TBRRERegExpCharClass;
MaxMatchLimit:longint;
MaxMatchLimitRecursion:longint;
MaxMatchLimitStackRecursion:longint;
procedure MarkStackPush(CurrentCodePoint,CurrentCodeUnit:longint;CurrentChar:longword); {$ifdef caninline}inline;{$endif}
function MarkStackPop(TopStack:longint;var MarkStackItem:TBRREBacktrackingNFAMarkStackItem):boolean; {$ifdef caninline}inline;{$endif}
function GreedyRepeat(var CurrentWorkChar:longword;Instruction:PBRRERegExpNFAInstruction;var CurrentCodePoint,CurrentCodeUnit:longint;Count,Level:longint):boolean;
function PtrGreedyRepeat(var CurrentWorkChar:longword;Instruction:PBRRERegExpNFAInstruction;var CurrentCodePoint,CurrentCodeUnit:longint;Count,Level:longint):boolean;
function Push(Instruction:PBRRERegExpNFAInstruction;CodePoint,CodeUnit:longint;WorkChar:longword):PBRRERegExpBacktrackingStackItem; {$ifdef caninline}inline;{$endif}
function ExecuteLevel(var CurrentWorkChar:longword;Instruction:PBRRERegExpNFAInstruction;CurrentCodePoint,CurrentCodeUnit:longint;var OutCodePoint,OutCodeUnit:longint;Level:longint):boolean;
function PtrExecuteLevel(var CurrentWorkChar:longword;Instruction:PBRRERegExpNFAInstruction;CurrentCodePoint,CurrentCodeUnit:longint;var OutCodePoint,OutCodeUnit:longint;Level:longint):boolean;
public
RegExp:TBRRERegExp;
RegExpProgram:TBRRERegExpProgram;
RegExpDataInstance:TBRRERegExpDataInstance;
RegExpProgramData:PBRRERegExpProgramDataInstance;
constructor Create(ARegExpProgram:TBRRERegExpProgram;ARegExpDataInstance:TBRRERegExpDataInstance;ARegExpProgramData:PBRRERegExpProgramDataInstance);
destructor Destroy; override;
function Search(const Input:ansistring;var CodePoint,CodeUnit:longint;UseAnchoredStart:boolean):boolean;
function PtrSearch(const Input:pansichar;var CodePoint,CodeUnit:longint;UseAnchoredStart:boolean):boolean;
end;
TBRRERegExpProgram=class
private
public
RegExp:TBRRERegExp;
ID:longint;
Instructions:TBRRERegExpNFAInstructions;
AnchoredInstructions:TBRRERegExpNFAInstructions;
Start:PBRRERegExpNFAInstruction;
AnchoredStart:PBRRERegExpNFAInstruction;
AnchorStartInstruction:PBRRERegExpNFAInstruction;
AnchorEndInstruction:PBRRERegExpNFAInstruction;
Method:longint;
Len,FirstCapture,CountOfCaptures:longint;
HasRootCapture,IsGlobal,IsOnePass,CanBitstateNFA,CanDFA:boolean;
ByteMap:TBRREByteMap;
UnByteMap:TBRREByteMap;
ByteCharSetMap:TBRRERegExpCharClassCharSet;
ByteCount:longint;
OnePassNodes:PBRREOnePassState;
OnePassNodesCount:longint;
OnePassStart:PBRREOnePassState;
OnePassStateSize:longint;
FixedString:ansistring;
FixedStringShiftOrPatternMaskBoyerMooreSkip:TBRRERegExpShiftOrPatternMaskBoyerMooreSkip;
FixedStringBoyerMooreNext:TBRRERegExpBoyerMooreNext;
FixedStringSearchMethod:longint;
PrefixIsWholeRegExp:boolean;
FixedStringLength:longint;
FixedStringUTF8Length:longint;
FixedStringIsPrefix:boolean;
AnchorBeginText:boolean;
AnchorBeginLine:boolean;
AnchorStart:boolean;
AnchorEnd:boolean;
SearchForFirstChars:boolean;
DFAMode:longint;
PrefilterRootNode:TBRRERegExpPrefilterNode;
CharClassActions:PBRREOnePassStateCharClassAction;
RangeLow:ansistring;
RangeHigh:ansistring;
HasRange:boolean;
constructor Create(ARegExp:TBRRERegExp);
destructor Destroy; override;
end;
TBRRERegExpDataInstanceVisited=array of longword;
TBRRERegExpDataInstanceInstructionGenerationIDs=array of ptruint;
PBRRERegExpDataInstanceInstructionGenerationIDsStatic=^TBRRERegExpDataInstanceInstructionGenerationIDsStatic;
TBRRERegExpDataInstanceInstructionGenerationIDsStatic=array[0..65535] of ptruint;
TBRRERegExpProgramDataInstance=record
FixedStringSearch:TBRREFixedStringSearch;
OnePassNFA:TBRREOnePassNFA;
BitstateNFA:TBRREBitstateNFA;
ParallelNFA:TBRREParallelNFA;
BacktrackingNFA:TBRREBacktrackingNFA;
InstructionGenerationIDs:TBRRERegExpDataInstanceInstructionGenerationIDs;
GenerationID:ptruint;
end;
TBRRERegExpProgramDataInstances=array of TBRRERegExpProgramDataInstance;
TBRRERegExpDataInstance=class
public
NextFree:TBRRERegExpDataInstance;
RegExp:TBRRERegExp;
Captures:TBRRERegExpCaptures;
GlobalStartPositions:TBRRERegExpCaptureStarts;
LastIndexCodeUnit:longint;
LastIndexCodePoint:longint;
WorkCaptures:TBRRERegExpCaptures;
DFA:TBRREDFA;
InputPointsLength:longint;
InputUnitsLength:longint;
InputIsUTF8:boolean;
RegExpPrograms:TBRRERegExpProgramDataInstances;
CalloutCaptures:PBRRELongints;
constructor Create(ARegExp:TBRRERegExp);
destructor Destroy; override;
procedure Update;
function Callout(Number:longint;Subject:pansichar;SubjectUnitsLength,SubjectPointsLength,CodeUnit,CodePoint,CodeUnitOffset:longint):longint;
end;
TBRRERegExpFixupableCapture=record
CaptureIndex:longint;
Identifier:ansistring;
end;