public static bool DoParse(List<Token> tokenlist, Ast _ast, out CompilerErrorInfo error)
{
ast = _ast;
error = null;
i = 0;
tokenList = tokenlist;
while (i < tokenList.Count)
{
GenStatement(ast.Statements);
}
return true;
}
public static bool DoParse(List <Token> tokenlist, Ast _ast, out CompilerErrorInfo error)
{
ast = _ast;
error = null;
i = 0;
tokenList = tokenlist;
while (i < tokenList.Count)
{
GenStatement(ast.Statements);
}
return(true);
}
public bool DoCompile()
{
if (this.LoadFile() == false)
{
this.error = new CompilerErrorInfo(0, CompilerError.NOFILE);
return(false);
}
if (Scanner.DoScan(sourceList, out tokenList, out this.error) == false)
{
}
if (Parser.DoParse(tokenList, ast, out this.error) == false)
{
}
return(true);
}
public bool DoCompile()
{
if (this.LoadFile() == false)
{
this.error = new CompilerErrorInfo(0, CompilerError.NOFILE);
return false;
}
if (Scanner.DoScan(sourceList, out tokenList, out this.error) == false)
{
}
if (Parser.DoParse(tokenList, ast, out this.error) == false)
{
}
return true;
}
private bool LoadFile()
{
if (File.Exists(sourcepath) == false)
{
this.error = new CompilerErrorInfo(0, CompilerError.NOFILE);
return(false);
}
else
{
StreamReader sr = new StreamReader(sourcepath);
string linetext;
while ((linetext = sr.ReadLine()) != null)
{
linetext = linetext.TrimStart(new char[] { '\t', ' ' });
sourceList.Add(linetext);
}
sr.Close();
return(true);
}
}
public static bool DoScan(List <string> sourceList, out List <Token> tokenList, out CompilerErrorInfo error)
{
error = null;
tokenList = new List <Token>();
for (int i = 0; i < sourceList.Count; i++)
{
if (sourceList[i].StartsWith("//"))
{
continue;
}
for (int j = 0; j < sourceList[i].Length; j++)
{
if (sourceList[i][j] == ' ')
{
continue;
}
if (char.IsDigit(sourceList[i][j]))
{
tempStr.Clear();
tempStr.Append(sourceList[i][j]);
j++;
while (j < sourceList[i].Length && char.IsDigit(sourceList[i][j]))
{
tempStr.Append(sourceList[i][j]);
j++;
}
tokenList.Add(new Number(int.Parse(tempStr.ToString())));
j--;
}
else if (char.IsLetter(sourceList[i][j]) || sourceList[i][j] == '_')
{
tempStr.Clear();
tempStr.Append(sourceList[i][j]);
j++;
while (j < sourceList[i].Length && (char.IsLetterOrDigit(sourceList[i][j]) || sourceList[i][j] == '_'))
{
tempStr.Append(sourceList[i][j]);
j++;
}
if (ReservedWord.ReservedWordList.Contains(tempStr.ToString()))
{
tokenList.Add(new ReservedWord((ReservedWordType)Enum.Parse(typeof(ReservedWordType), tempStr.ToString().ToUpper())));
j--;
}
else
{
tokenList.Add(new Identifier(tempStr.ToString()));
j--;
}
}
else if (sourceList[i][j] == '/')
{
if (sourceList[i].Length > j + 1 && sourceList[i][j + 1] == '/')
{
break;
}
else if (sourceList[i][j + 1] == '*' && sourceList[i].Length >= j + 1)
{
bool inComment = true;
do
{
if (j + 1 == sourceList[i].Length)
{
j = -1;
i++;
continue;
}
j++;
if (j + 1 < sourceList[i].Length && sourceList[i][j] == '*' && sourceList[i][j + 1] == '/')
{
inComment = false;
j++;
break;
}
} while (i < sourceList.Count);
if (inComment == true)
{
//error
}
}
}
else if (sourceList[i][j] == '(')
{
tokenList.Add(new Delimiter(DelimiterType.leftParenthesis));
}
else if (sourceList[i][j] == ')')
{
tokenList.Add(new Delimiter(DelimiterType.rightParenthesis));
}
else if (sourceList[i][j] == '{')
{
tokenList.Add(new Delimiter(DelimiterType.leftBrace));
}
else if (sourceList[i][j] == '}')
{
tokenList.Add(new Delimiter(DelimiterType.rightParenthesis));
}
else if (sourceList[i][j] == ';')
{
tokenList.Add(new Delimiter(DelimiterType.semicolon));
}
else if (sourceList[i][j] == ',')
{
tokenList.Add(new Delimiter(DelimiterType.comma));
}
else if (sourceList[i][j] == '#')
{
tokenList.Add(new Delimiter(DelimiterType.pound));
}
else if (sourceList[i][j] == '!')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.notequal));
}
else
{
tokenList.Add(new Operator(OperatorType.not));
}
}
else if (sourceList[i][j] == '=')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.equal));
}
else
{
tokenList.Add(new Operator(OperatorType.assign));
}
}
else if (sourceList[i][j] == '[')
{
tokenList.Add(new Operator(OperatorType.leftbracket));
}
else if (sourceList[i][j] == ']')
{
tokenList.Add(new Operator(OperatorType.rightbracket));
}
else if (sourceList[i][j] == '+')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '+')
{
j++;
//tokenList.Add(new Operator(OperatorType.selfadd));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.addassign));
}
else
{
tokenList.Add(new Operator(OperatorType.add));
}
}
else if (sourceList[i][j] == '-')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '-')
{
j++;
//tokenList.Add(new Operator(OperatorType.selfsub));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.subassign));
}
else
{
tokenList.Add(new Operator(OperatorType.sub));
}
}
else if (sourceList[i][j] == '*')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.mul));
}
else
{
tokenList.Add(new Operator(OperatorType.mulassign));
}
}
else if (sourceList[i][j] == '/')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.divassign));
}
else
{
tokenList.Add(new Operator(OperatorType.div));
}
}
else if (sourceList[i][j] == '%')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.aliquotassign));
}
else
{
tokenList.Add(new Operator(OperatorType.aliquot));
}
}
else if (sourceList[i][j] == '&')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '&')
{
j++;
tokenList.Add(new Operator(OperatorType.and));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.andassign));
}
else
{
tokenList.Add(new Operator(OperatorType.bitand));
}
}
else if (sourceList[i][j] == '&')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '&')
{
j++;
tokenList.Add(new Operator(OperatorType.and));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.andassign));
}
else
{
tokenList.Add(new Operator(OperatorType.bitand));
}
}
else if (sourceList[i][j] == '|')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '|')
{
j++;
tokenList.Add(new Operator(OperatorType.or));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.orassign));
}
else
{
tokenList.Add(new Operator(OperatorType.bitor));
}
}
else if (sourceList[i][j] == '^')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.notassign));
}
else
{
tokenList.Add(new Operator(OperatorType.not));
}
}
else if (sourceList[i][j] == '>')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.greatereuqal));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '>')
{
j++;
tokenList.Add(new Operator(OperatorType.rightmove));
}
else
{
tokenList.Add(new Operator(OperatorType.greater));
}
}
else if (sourceList[i][j] == '<')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.lessequal));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '<')
{
j++;
tokenList.Add(new Operator(OperatorType.leftmove));
}
else
{
tokenList.Add(new Operator(OperatorType.less));
}
}
}
}
return(true);
}
private bool LoadFile()
{
if (File.Exists(sourcepath) == false)
{
this.error = new CompilerErrorInfo(0, CompilerError.NOFILE);
return false;
}
else
{
StreamReader sr = new StreamReader(sourcepath);
string linetext;
while ((linetext = sr.ReadLine()) != null)
{
linetext = linetext.TrimStart(new char[] { '\t', ' ' });
sourceList.Add(linetext);
}
sr.Close();
return true;
}
}
public static bool DoScan(List<string> sourceList, out List<Token> tokenList, out CompilerErrorInfo error)
{
error = null;
tokenList = new List<Token>();
for (int i = 0; i < sourceList.Count; i++)
{
if (sourceList[i].StartsWith("//")) continue;
for (int j = 0; j < sourceList[i].Length; j++)
{
if (sourceList[i][j] == ' ') continue;
if(char.IsDigit(sourceList[i][j]))
{
tempStr.Clear();
tempStr.Append(sourceList[i][j]);
j++;
while (j < sourceList[i].Length && char.IsDigit(sourceList[i][j]))
{
tempStr.Append(sourceList[i][j]);
j++;
}
tokenList.Add(new Number(int.Parse(tempStr.ToString())));
j--;
}
else if (char.IsLetter(sourceList[i][j]) || sourceList[i][j] == '_')
{
tempStr.Clear();
tempStr.Append(sourceList[i][j]);
j++;
while (j < sourceList[i].Length && (char.IsLetterOrDigit(sourceList[i][j]) || sourceList[i][j] == '_'))
{
tempStr.Append(sourceList[i][j]);
j++;
}
if (ReservedWord.ReservedWordList.Contains(tempStr.ToString()))
{
tokenList.Add(new ReservedWord((ReservedWordType)Enum.Parse(typeof(ReservedWordType), tempStr.ToString().ToUpper())));
j--;
}
else
{
tokenList.Add(new Identifier(tempStr.ToString()));
j--;
}
}
else if (sourceList[i][j]=='/')
{
if (sourceList[i].Length > j + 1 && sourceList[i][j + 1] == '/')
{
break;
}
else if (sourceList[i][j + 1] == '*' && sourceList[i].Length >= j + 1)
{
bool inComment = true;
do
{
if (j + 1 == sourceList[i].Length)
{
j = -1;
i++;
continue;
}
j++;
if (j + 1 < sourceList[i].Length && sourceList[i][j] == '*' && sourceList[i][j + 1] == '/')
{
inComment = false;
j++;
break;
}
} while (i < sourceList.Count);
if (inComment == true)
{
//error
}
}
}
else if (sourceList[i][j] == '(')
{
tokenList.Add(new Delimiter(DelimiterType.leftParenthesis));
}
else if (sourceList[i][j] == ')')
{
tokenList.Add(new Delimiter(DelimiterType.rightParenthesis));
}
else if (sourceList[i][j] == '{')
{
tokenList.Add(new Delimiter(DelimiterType.leftBrace));
}
else if (sourceList[i][j] == '}')
{
tokenList.Add(new Delimiter(DelimiterType.rightParenthesis));
}
else if (sourceList[i][j] == ';')
{
tokenList.Add(new Delimiter(DelimiterType.semicolon));
}
else if (sourceList[i][j] == ',')
{
tokenList.Add(new Delimiter(DelimiterType.comma));
}
else if (sourceList[i][j] == '#')
{
tokenList.Add(new Delimiter(DelimiterType.pound));
}
else if (sourceList[i][j] == '!')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.notequal));
}
else
{
tokenList.Add(new Operator(OperatorType.not));
}
}
else if (sourceList[i][j] == '=')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.equal));
}
else
{
tokenList.Add(new Operator(OperatorType.assign));
}
}
else if (sourceList[i][j] == '[')
{
tokenList.Add(new Operator(OperatorType.leftbracket));
}
else if (sourceList[i][j] == ']')
{
tokenList.Add(new Operator(OperatorType.rightbracket));
}
else if (sourceList[i][j] == '+')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '+')
{
j++;
//tokenList.Add(new Operator(OperatorType.selfadd));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.addassign));
}
else
{
tokenList.Add(new Operator(OperatorType.add));
}
}
else if (sourceList[i][j] == '-')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '-')
{
j++;
//tokenList.Add(new Operator(OperatorType.selfsub));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.subassign));
}
else
{
tokenList.Add(new Operator(OperatorType.sub));
}
}
else if (sourceList[i][j] == '*')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.mul));
}
else
{
tokenList.Add(new Operator(OperatorType.mulassign));
}
}
else if (sourceList[i][j] == '/')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.divassign));
}
else
{
tokenList.Add(new Operator(OperatorType.div));
}
}
else if (sourceList[i][j] == '%')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.aliquotassign));
}
else
{
tokenList.Add(new Operator(OperatorType.aliquot));
}
}
else if (sourceList[i][j] == '&')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '&')
{
j++;
tokenList.Add(new Operator(OperatorType.and));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.andassign));
}
else
{
tokenList.Add(new Operator(OperatorType.bitand));
}
}
else if (sourceList[i][j] == '&')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '&')
{
j++;
tokenList.Add(new Operator(OperatorType.and));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.andassign));
}
else
{
tokenList.Add(new Operator(OperatorType.bitand));
}
}
else if (sourceList[i][j] == '|')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '|')
{
j++;
tokenList.Add(new Operator(OperatorType.or));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.orassign));
}
else
{
tokenList.Add(new Operator(OperatorType.bitor));
}
}
else if (sourceList[i][j] == '^')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.notassign));
}
else
{
tokenList.Add(new Operator(OperatorType.not));
}
}
else if (sourceList[i][j] == '>')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.greatereuqal));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '>')
{
j++;
tokenList.Add(new Operator(OperatorType.rightmove));
}
else
{
tokenList.Add(new Operator(OperatorType.greater));
}
}
else if (sourceList[i][j] == '<')
{
if (j < sourceList[i].Length && sourceList[i][j + 1] == '=')
{
j++;
tokenList.Add(new Operator(OperatorType.lessequal));
}
else if (j < sourceList[i].Length && sourceList[i][j + 1] == '<')
{
j++;
tokenList.Add(new Operator(OperatorType.leftmove));
}
else
{
tokenList.Add(new Operator(OperatorType.less));
}
}
}
}
return true;
}