protected Ast.SqliteSyntaxProduction ParseSqlStmt(string text)
{
var tokens = Notebook.Tokenize(text);
var q = new TokenQueue(tokens, Notebook);
Ast.SqliteSyntaxProduction ast;
var result = SqliteParser.ReadStmt(q, out ast);
if (result.IsValid && q.Eof())
{
return(ast);
}
else
{
throw new MacroProcessorException($"\"{text}\" is not a valid SQL statement.");
}
}
private Ast.Script ParseScript(TokenQueue q)
{
var script = new Ast.Script {
SourceToken = q.SourceToken
};
script.Block = new Ast.Block {
SourceToken = q.SourceToken
};
while (!q.Eof())
{
var stmt = ParseStmt(q);
if (stmt != null)
{
script.Block.Statements.Add(stmt);
}
}
return(script);
}
protected Ast.Expr NewExpr(string text)
{
var tokens = Notebook.Tokenize(text);
var q = new TokenQueue(tokens, Notebook);
Ast.SqliteSyntaxProduction ast;
var result = SqliteParser.ReadExpr(q, out ast);
if (result.IsValid && q.Eof())
{
return(new Ast.Expr {
Sql = text, SqliteSyntax = ast
});
}
else
{
throw new MacroProcessorException($"\"{text}\" is not a valid SQL expression.");
}
}