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SqlString.cs
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SqlString.cs
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/**************************************************************************
Copyright (C) 2023 Rekkonnect
This file is part of CompactView.
CompactView is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
CompactView is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with CompactView. If not, see <http://www.gnu.org/licenses/>.
CompactView web site <http://sourceforge.net/p/compactview/>.
**************************************************************************/
using CompactView.Lexing;
using System;
namespace CompactView
{
/// <summary>
/// Represents a SQL string that also caches its tokenized form.
/// The tokens are lazily computed on demand and cached for later use.
/// </summary>
public class SqlString
{
private readonly Lazy<TokenList> _lazyTokens;
public string Sql { get; }
public SqlLexer Lexer { get; set; } = SqlLexer.Shared;
public SqlString(string sql)
{
Sql = sql;
_lazyTokens = new Lazy<TokenList>(Tokenize);
}
public TokenList GetTokens()
{
return _lazyTokens.Value;
}
private TokenList Tokenize()
{
return Lexer.Tokenize(Sql);
}
}
}