public static SelectStmtInfo ParseSQL(string sql)
{
Antlr4.Runtime.AntlrInputStream input = new Antlr4.Runtime.AntlrInputStream(sql);
SelectSQLLexer lexer = new SelectSQLLexer(input);
Antlr4.Runtime.UnbufferedTokenStream tokens = new Antlr4.Runtime.UnbufferedTokenStream(lexer);
SelectSQLParser parser = new SelectSQLParser(tokens);
var tree = parser.compileUnit();
ParseTreeWalker walker = new ParseTreeWalker();
SelectSQLTreeListener lsn = new SelectSQLTreeListener();
walker.Walk(lsn, tree);
return lsn.SelectStmt;
}
public static ParseResult Parse(string sentence)
{
Antlr4.Runtime.AntlrInputStream input = new Antlr4.Runtime.AntlrInputStream(sentence);
WeatherRuleLexer lexer = new WeatherRuleLexer(input);
Antlr4.Runtime.UnbufferedTokenStream tokens = new Antlr4.Runtime.UnbufferedTokenStream(lexer);
WeatherRuleParser parser = new WeatherRuleParser(tokens);
parser.RemoveErrorListeners();
var tree = parser.compileUnit();
ParseTreeWalker walker = new ParseTreeWalker();
WeatherListener lsn = new WeatherListener();
walker.Walk(lsn, tree);
return lsn.Result;
}
public static SelectStmtInfo ParseSQL(string sql)
{
Antlr4.Runtime.AntlrInputStream input = new Antlr4.Runtime.AntlrInputStream(sql);
SelectSQLLexer lexer = new SelectSQLLexer(input);
ErrorListener errorListner = new ErrorListener();
Antlr4.Runtime.UnbufferedTokenStream tokens = new Antlr4.Runtime.UnbufferedTokenStream(lexer);
SelectSQLParser parser = new SelectSQLParser(tokens);
parser.AddErrorListener(errorListner);
var tree = parser.compileUnit();
ParseTreeWalker walker = new ParseTreeWalker();
SelectSQLTreeListener lsn = new SelectSQLTreeListener();
walker.Walk(lsn, tree);
return(lsn.SelectStmt);
}
public static string GenerateStringView(string template, Dictionary<string, object> variables)
{
Antlr4.Runtime.AntlrInputStream input = new Antlr4.Runtime.AntlrInputStream(template);
TemplateLexer lexer = new TemplateLexer(input);
Antlr4.Runtime.UnbufferedTokenStream tokens = new Antlr4.Runtime.UnbufferedTokenStream(lexer);
TemplateParser parser = new TemplateParser(tokens);
SimpleTemplateErrorListener errorLsn=new SimpleTemplateErrorListener();
parser.AddErrorListener(errorLsn);
var tree = parser.parse();
if (errorLsn.ErrorType != ParseErrorType.Successful)
throw new Exception(errorLsn.ErrorType.ToString());
SimpleTemplateVisitor visitor = new SimpleTemplateVisitor(variables);
string result=(string)visitor.Visit(tree);
return result;
}
