Imported: AMXXSC, LIBSC, SCASM

compiler/scasm/amx_symbol.cpp

@@ -0,0 +1,105 @@
+/* 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: $Id$
+ */
+
+#include "amxasm.h"
+
+bool is_valid_symbol_marker(char c)
+{
+	if (c >= '0' && c <= '9')
+		return true;
+	if (isletter(c))
+		return true;
+	return false;
+}
+
+bool IsValidSymbol(std::string &text)
+{
+	size_t i = 0;
+
+	if (!text.size() || !isletter(text[0]))
+	{
+		return false;
+	}
+
+	for (i=0; i<text.size(); i++)
+	{
+		if (!is_valid_symbol_marker(text[i]))
+		{
+			return false;
+		}
+	}
+
+	return true;
+}
+
+SymbolList::~SymbolList()
+{
+	std::vector<SymbolList::Symbol *>::iterator i;
+
+	for (i=List.begin(); i!=List.end(); i++)
+	{
+		if ( (*i) )
+			delete (*i);
+	}
+
+	List.clear();
+}
+
+SymbolList::Symbol::Symbol(SymbolType t, const char *s, int l)
+{
+	line = l;
+	sym.assign(s);
+	type = t;
+}
+
+int SymbolList::Symbol::IsEqual(std::string &s)
+{
+	return (sym.compare(s)==0);
+}
+
+SymbolList::Symbol *SymbolList::AddSymbol(const char *s, SymbolType type, int line)
+{
+	Symbol *sym = new Symbol(type, s, line);
+	List.push_back(sym);
+	return sym;
+}
+
+SymbolList::Symbol* SymbolList::FindSymbol(std::string &sym)
+{
+	std::vector<Symbol*>::iterator i;
+	for (i=List.begin(); i!=List.end(); i++)
+	{
+		if ((*i)->IsEqual(sym))
+			return (*i);
+	}
+
+	return NULL;
+}
+
+void SymbolList::PrintTable()
+{
+	std::vector<Symbol*>::iterator i;
+	for (i=List.begin(); i!=List.end(); i++)
+	{
+		printf("Symbol \"%s\" defined on line %d\n", (*i)->GetSymbol(), (*i)->GetLine());
+	}
+}