base

2026-08-07 17:38:18 +09:00
commit 873193a243
9613 changed files with 2755992 additions and 0 deletions
@@ -0,0 +1,97 @@
+#ifndef REX_ALGORITHM_INCLUDED_
+#define REX_ALGORITHM_INCLUDED_
+
+#pragma warning(disable:4786)
+#pragma warning(disable:4503)
+#include <utility>
+#include <vector>
+#include <set>
+#include <string>
+using namespace std;
+
+
+struct REXA_DFAState{
+    enum{eEos=-1,eNoAnswer=-2,eAccepting=-3};
+    REXA_DFAState(int nAnwserId=eNoAnswer,bool bIsFinal=false);
+    static void			CollectStates   (REXA_DFAState* pState,
+											set<REXA_DFAState*>& rsetStates);
+    void				DeleteAll();
+	REXA_DFAState*	aNext[256];
+	int 		m_nAnwserId;
+	bool 		m_bIsFinal;
+    bool        m_bIsAccepting;
+    static REXA_DFAState* ms_pIllegalState;
+    static REXA_DFAState* ms_pEosState;
+};
+
+
+
+
+
+#if 0
+
+$2 RegExp= Term {"|" Term}.
+$3 Term= Factor {Factor}.
+$4 Factor= Atom ["*"|"+"|"?"].
+$5 Atom= "[" REXA_CharSet "]" | Ident | "(" RegExp ").
+$6 REXA_CharSet= <Zeichenketten, Metazeichen sind ^(Komplement),-(Range-Zeichen),
+	\ als Escapezeichen fuer Metazeichen, . (bedeutet alle Zeichen.
+
+#endif
+
+
+
+enum REXA_ESymbols{
+	eEof=1,
+	eIllegal=2,
+	eIdent=4,
+	eStar=32,
+	ePlus=64,
+    eAssign=128,
+	eOpt=256,
+	eAlternative=512,
+	eCharSet=1024,
+	eLParen=2048,
+	eRParen=4096,
+    eIgnoreCase=8192
+};
+
+
+typedef pair<const char*,const char*> REXA_BegEnd;
+
+class REXA_Exception{
+public:
+    REXA_Exception(
+        const char* pPos,
+        const char* pRegExp,
+        string strMsg);
+	REXA_Exception(
+		REXA_ESymbols eExpectedSymbol,
+		REXA_BegEnd    token,
+		const char*   pRegExp,
+		string		  strMsg="");
+
+	string      m_strErrMsg;
+    int         m_nErrPos;
+};
+class REXA_Parser{
+public:
+    REXA_Parser     (char cEos=0);
+    ~REXA_Parser    ();
+
+    REXA_DFAState*      ParseRegExp     (string strRegExp);
+    void                AddRegDefinition (   string strDefName,
+                                                string strDefExpression,
+                                                int nAnswer);
+    void                RemoveRegDefinition (   string strDefName);
+    void                GetRegDefinitions   (vector<string>& vecDefinitions); 
+private:
+    class REXA_ParserImpl*   m_pParserImp;
+};
+
+#endif
+
+
+
+
+