public LexicalAnalyzer(LangProcessor processor, Logger logger)
{
this.processor = processor;
this.logger = logger;
lexTable = new LStack <lexChain>();
this.errors = 0;
this.inputChain = "";
}
public SyntaxAnalyzer(LangProcessor processor, Logger logger)
{
this.processor = processor;
this.logger = logger;
this.lexTable = new LStack <lexChain>();
this.tmpLexTable = new LStack <lexChain>();
this.identifierStack = new LStack <string>();
this.arifmeticStack = new LStack <string>();
this.labelStack = new LStack <string>();
this.logicalStack = new LStack <string>();
this.arifmeticVariables = new List <string>();
this.labelVariables = new List <string>();
this.logicVariables = new List <string>();
this.minus = new LStack <string>();
this.compiledProgram = "";
this.errors = 0;
}
public GlobalStack()
{
this.data = new LStack <ActionValue>();
}
public void parse(LStack <lexChain> lexTable)
{
logger.Log("Syntax analyzer started...");
this.processor.syntax.GlobalStack.init();
this.compiledProgram = "";
this.lexTable = lexTable;
this.tmpLexTable.Clear(); this.identifierStack.Clear();
this.arifmeticStack.Clear(); this.arifmeticVariables.Clear();
this.logicalStack.Clear(); this.logicVariables.Clear();
this.labelStack.Clear(); this.labelVariables.Clear();
this.minus.Clear();
int action = 0;
ActionValue glStackTop;
int stackSymbol;
while ((this.processor.syntax.GlobalStack.Size != 0) && (this.lexTable.Count != 0) && (action != Actions.UNDEFINED_ACTION))
{
glStackTop = this.processor.syntax.GlobalStack.pop();
if (glStackTop.i != Actions.SYNTAX_ACTION)
{
stackSymbol = glStackTop.i;
if (stackSymbol == Actions.SYNTAX_SYMBOL)
{
stackSymbol = glStackTop.val;
}
action = this.processor.syntax.SyntaxTable[stackSymbol, this.lexTable[0].type];
if (action != -1)
{
this.doAction(action);
}
}
else
{
this.translateActionSymbol(glStackTop.val);
}
if ((this.processor.syntax.GlobalStack.Size == 1) && (this.lexTable.Count == 0))
{
this.translateActionSymbol(this.processor.syntax.GlobalStack.bottom().val);
this.processor.syntax.GlobalStack.pop();
}
}
string[] spl = this.compiledProgram.Split(new string[] { "VAR" }, StringSplitOptions.None);
if (this.labelVariables.Count > 0)
{
spl[0] = "LABEL ";
for (var i = 0; i < this.labelVariables.Count - 1; i++)
{
spl[0] += "\n" + this.labelVariables[i] + ",";
}
spl[0] += "\n" + this.labelVariables[this.labelVariables.Count - 1] + ";\nVAR";
}
else
{
spl[0] = "VAR";
}
if (this.logicVariables.Count > 0)
{
for (int i = 0; i < this.logicVariables.Count - 1; i++)
{
spl[0] += "\n" + this.logicVariables[i] + ",";
}
spl[0] += "\n" + this.logicVariables[this.logicVariables.Count - 1] + " :boolean;\n";
}
for (int i = 0; i < this.arifmeticVariables.Count; i++)
{
spl[0] += "\n" + this.arifmeticVariables[i] + ",";
}
if (spl.Length > 1)
{
this.compiledProgram = spl[0] + spl[1];
}
if (action == Actions.UNDEFINED_ACTION)
{
logger.Log("\n^Error: unexpected symbol on the " + this.lexTable[0].l + " line:" + this.lexTable[0].val + " \n");
this.errors++;
}
else
if ((this.processor.syntax.GlobalStack.Size != 0) && (this.lexTable.Count == 0))
{
logger.Log("\n^Error: unexpected end of the file\n");
this.errors++;
}
else
if ((this.processor.syntax.GlobalStack.Size == 0) && (this.lexTable.Count != 0))
{
logger.Log("\n^Warning: there code after end.'\n");
}
else
{
logger.Log("Translation complete!\n");
}
}
