Imported: AMXXSC, LIBSC, SCASM

compiler/scasm/cexpr.h

@@ -0,0 +1,71 @@
+/* AMX Assembler
+ * Copyright (C)2004 David "BAILOPAN" Anderson
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ *
+ * Version: $Id$
+ */
+
+#ifndef _INCLUDE_CEXPR_H
+#define _INCLUDE_CEXPR_H
+
+/* This class is used for a single expression element
+ * It reads in a symbol and evaluates it.
+ */
+
+typedef enum
+{
+	Val_None,
+	Val_Error,
+	Val_String,
+	Val_String_Hex,
+	Val_String_Number,
+	Val_Number_Hex,
+	Val_Number,
+	Val_Block,
+	Val_Hex,
+} cExprType;
+
+class CExpr
+{
+public:
+	CExpr();
+	CExpr(ErrorMngr *e);
+	CExpr(ErrorMngr *e, std::string &text);
+	void Set(std::string &text);
+	const char *GetString(int *d=NULL);
+	int Analyze();
+	cExprType Evaluate();
+	cExprType GetType();
+	int GetNumber();
+	int Size();
+	void Clear();
+	~CExpr();
+private:
+	char IsHex(char c);
+	char IsLiteral(char c);
+	int DeHex(std::string blk);
+private:
+	char *block;
+	std::string data;
+	cExprType type;
+	int numVal;
+private:
+	ErrorMngr *CError;
+};
+
+#endif //_INCLUDE_CEXPR_H