private static HashSet <string> CreateReservedWords()
{
var grammar = typeof(SQLiteParsingHelper).Assembly.GetResourceText("sql-sqlite-grammar.lisp", true);
var tokens = TheLexer.Lexize(grammar);
var reader = new TinyLispPseudoReader();
var form = reader.Read(tokens);
var nodeFactory = new SQLiteNodeFactory();
var builder = new TreeBuilder();
var root = builder.Build(nodeFactory, form);
var nodes = root.FetchTree();
var words = new List <string>();
words.AddRange(nodes
.Where(x => x is ExactTextNode)
.Cast <ExactTextNode>()
.Select(x => x.ExactText.ToLowerInvariant()));
words.AddRange(nodes
.Where(x => x is MultiTextNode)
.Cast <MultiTextNode>()
.SelectMany(x => x.Texts.Select(y => y.ToLowerInvariant())));
return(new HashSet <string>(words));
}
private INode BuildRoot()
{
var nodeFactory = new SQLiteNodeFactory();
var input = this.GetType().Assembly.GetResourceText("sql-sqlite-grammar.lisp", true);
ILexer lexer = new TinyLispLexer();
var tokens = lexer.Lexize(input);
var reader = new TinyLispPseudoReader();
var list = reader.Read(tokens);
ITreeBuilder builder = new TreeBuilder();
var root = builder.Build(nodeFactory, list);
this.ChargeRoot(root);
return(root);
}
