| author | Michael Krelin <hacker@klever.net> | 2004-07-05 01:53:09 (UTC) |
|---|---|---|
| committer | Michael Krelin <hacker@klever.net> | 2004-07-05 01:53:09 (UTC) |
| commit | fb8b43dbce8bc310718614384297aeaabb9a3cbb (patch) (side-by-side diff) | |
| tree | af9d2c2b71ddffff93a97a02fe26611096b78645 /shared-code/RegEx.h | |
| download | bigbrother-fb8b43dbce8bc310718614384297aeaabb9a3cbb.zip bigbrother-fb8b43dbce8bc310718614384297aeaabb9a3cbb.tar.gz bigbrother-fb8b43dbce8bc310718614384297aeaabb9a3cbb.tar.bz2 | |
initial commit into svn repository
git-svn-id: http://svn.klever.net/kin/bigbrother/trunk@1 fe716a7a-6dde-0310-88d9-d003556173a8
| -rw-r--r-- | shared-code/RegEx.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/shared-code/RegEx.h b/shared-code/RegEx.h new file mode 100644 index 0000000..2534768 --- a/dev/null +++ b/shared-code/RegEx.h @@ -0,0 +1,158 @@ +#ifndef __REGEX_H
+#define __REGEX_H
+
+class CRegEx {
+public:
+ CString GetMatch(int match=0);
+ CString m_Input;
+ struct CMatch {
+ CMatch() : m_Begin(-1), m_End(-1) {}
+ int GetLength() { return m_End-m_Begin; }
+ int m_Begin;
+ int m_End;
+ };
+ typedef CArray<CMatch,CMatch&> CMatchBox;
+ enum {
+ matchMatch = 0,
+ matchPreMatch = -1,
+ matchPostMatch = -2
+ };
+ CMatchBox m_Matches;
+ enum {
+ charOut = 256,
+ charBOL, charEOL, charBOLEOL, charNothing, charBOW, charEOW,
+ charMaxCode = charEOW,
+ charNNChars = (charMaxCode-255)
+ };
+ int m_mFlags;
+ enum {
+ regeSuccess = 0,
+ regeNoMatch = 1, regeBadPattern, regeCollate, regeCType, regeEscape, regeSubReg, regeBracket,
+ regeParen, regeBrace, regeBadBrace, regeRange, regeSpace, regeBadRepeat, regeEmpty, regeAssert,
+ regeInvArg
+ };
+ int m_Error;
+ CRegEx();
+ BOOL m_bCompiled;
+ CString m_Pattern;
+ BOOL m_bBackRefs;
+ int m_Pluses;
+ CString m_Must;
+ BYTE m_Category[CHAR_MAX-CHAR_MIN+1];
+ int m_Categories;
+ int m_EOLs;
+ int m_BOLs;
+ int m_iFlags;
+ int m_Subexps;
+ struct CSop {
+ void Dump(CDumpContext& dc);
+ CSop() {}
+ CSop(BYTE op,DWORD opnd=0) : m_Operator(op), m_Operand(opnd) {}
+ BOOL operator==(CSop& other) {return m_Operator==other.m_Operator && m_Operand==other.m_Operand;}
+ BOOL operator!=(CSop& other) { return !((*this)==other);}
+ enum {
+ opEnd = 1, opChar, opBOL, opEOL, opAny, opAnyOf, opBackRef0, opBackRef1,
+ opPlus0, opPlus1, opQuest0, opQuest1, opLeftParen, opRightParen, opChoice0,
+ opOr0, opOr1, opChoice1, opBOW, opEOW
+ };
+ BYTE m_Operator;
+ DWORD m_Operand;
+ enum {
+ stCurrent = 1, stFresh = 2, stTemp = 4, stEmpty = 8
+ };
+ BYTE m_MatchData;
+ };
+ typedef CArray<CSop,CSop&> CStrip;
+ CStrip m_Strip;
+ int m_Flags;
+ struct CSet {
+ CSet() : m_Hash(0) { memset(m_Set,0,sizeof(m_Set)); }
+ CSet(CSet& src) { (*this)=src; }
+ CSet& operator=(CSet& src) { memmove(this,&src,sizeof(*this)); return *this; }
+ BOOL operator==(CSet& other) { if(m_Hash!=other.m_Hash)return FALSE;return !memcmp(m_Set,other.m_Set,sizeof(m_Set)); }
+ enum {
+ size = (CHAR_MAX-CHAR_MIN+1)
+ };
+ BOOL m_Set[size];
+ BYTE m_Hash;
+ public:
+ UCHAR GetOnly();
+ void Sub(UCHAR c);
+ BOOL IsIn(UCHAR c);
+ void Add(UCHAR c);
+ };
+ typedef CArray<CSet,CSet&> CSets;
+ CSets m_Sets;
+ enum {
+ // Compile flags
+ regBasic = 0, regExtended = 1,
+ regIgnoreCase = 2,
+ regNoSubExpressions = 4, // Also works for matching.
+ regNewLine = 16,
+ regLiteral = 32,
+ // Match Flags
+ regNotBOL = 1,
+ regNotEOL = 2,
+ regOneMatch=64,
+ regBackRefs=128,
+ // iFlags
+ iflagsUseBOL=1, iflagsUseEOL=2, iflagsBad=4
+ };
+ CString Replace(LPCTSTR src,LPCTSTR rep,int flags=0);
+ BOOL Match(LPCTSTR src,int flags=0);
+ BOOL Compile(LPCTSTR regex,int flags=0);
+private:
+#ifdef _DEBUG
+ void DumpStrip(CDumpContext& dc);
+#endif
+ LPCTSTR MatchBackRef(LPCTSTR begin,LPCTSTR end,int from,int to,int level);
+ typedef CArray<LPCTSTR,LPCTSTR> CStrPtrArray;
+ CStrPtrArray m_mLastPos;
+ LPCTSTR MatchDissect(LPCTSTR begin,LPCTSTR end,int from,int to);
+ LPCTSTR MatchSlow(LPCTSTR begin,LPCTSTR end,int from,int to);
+ LPCTSTR m_cOldP;
+ BOOL MatchStatesEqual(BYTE m1,BYTE m2);
+ LPCTSTR m_mBegin;
+ void MatchStatesCopy(BYTE dst,BYTE src);
+ void MatchStep(int from,int to,BYTE maskBefore,int charCode,BYTE maskAfter);
+ void MatchStatesClear(BYTE mask);
+ LPCTSTR MatchFast(LPCTSTR begin);
+ LPCTSTR m_mEnd;
+ LPCTSTR m_mPointer;
+ BOOL ParseBREexp(BOOL ordinaryStar);
+ void ParseBRE(int stopa=0,int stopb=0);
+ void ParseLiteral();
+ int CountPluses();
+ void FigureMust();
+ BOOL IsInSameSets(UCHAR c1,UCHAR c2);
+ BOOL IsInSets(UCHAR c);
+ void Categorize();
+ int StripDuplicate(int from,int to);
+ void EmitRepeat(int pos,int from,int to);
+ UCHAR ParseBracketSymbol();
+ UCHAR ParseBracketCollatingElement(UCHAR term);
+ void ParseBracketEClass(CSet& cset);
+ void ParseBracketCClass(CSet& cset);
+ void ParseBracketTerm(CSet& cset);
+ int StoreSet(CSet& cset);
+ void ParseBracket();
+ int ParseCount();
+ void EmitNonNewLineAny();
+ void EmitOrdinary(UCHAR c);
+ void StripInsert(int pos,CSop& sop);
+ void ParseEREexp();
+ void ParseERE(int stop=0);
+ struct CParenthesis {
+ long m_Begin;
+ long m_End;
+ CParenthesis(long b=0,long e=0) : m_Begin(b), m_End(e) {}
+ };
+ typedef CArray<CParenthesis,CParenthesis&> CParens;
+ CParens m_ParseParens;
+ int m_ParsePointer;
+};
+#ifdef _DEBUG
+inline CDumpContext& operator<<(CDumpContext& dc, CRegEx::CSop& sop) { sop.Dump(dc); return dc; }
+#endif
+
+#endif // __REGEX_H
\ No newline at end of file |