/// <summary>
/// Initializes a new instance of the <see cref="Parser"/> class.
/// </summary>
/// <param name="language">The language.</param>
/// <param name="scanner">The scanner.</param>
/// <param name="root">The root.</param>
/// <exception cref="Exception">
/// </exception>
public Parser(LanguageData language, Scanner scanner, NonTerminal root)
{
Language = language;
Context = new ParsingContext(this);
Scanner = scanner ?? language.CreateScanner();
if (Scanner != null)
{
Scanner.Initialize(this);
}
else
{
Language.Errors.Add(GrammarErrorLevel.Error, null, "Scanner is not initialized for this grammar");
}
CoreParser = new CoreParser(this);
Root = root;
if (Root == null)
{
Root = Language.Grammar.Root;
InitialState = Language.ParserData.InitialState;
}
else
{
if (Root != Language.Grammar.Root && !Language.Grammar.SnippetRoots.Contains(Root))
{
throw new Exception(string.Format(Resources.ErrRootNotRegistered, root.Name));
}
InitialState = Language.ParserData.InitialStates[Root];
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Parser"/> class.
/// </summary>
/// <param name="language">The language.</param>
/// <param name="scanner">The scanner.</param>
/// <param name="root">The root.</param>
/// <exception cref="Exception">
/// </exception>
public Parser(LanguageData language, Scanner scanner, NonTerminal root)
{
Language = language;
Context = new ParsingContext(this);
Scanner = scanner ?? language.CreateScanner();
if (Scanner != null)
{
Scanner.Initialize(this);
}
else
{
Language.Errors.Add(GrammarErrorLevel.Error, null, "Scanner is not initialized for this grammar");
}
CoreParser = new CoreParser(this);
Root = root;
if (Root == null)
{
Root = Language.Grammar.Root;
InitialState = Language.ParserData.InitialState;
}
else
{
if (Root != Language.Grammar.Root && !Language.Grammar.SnippetRoots.Contains(Root))
{
throw new Exception(string.Format(Resources.ErrRootNotRegistered, root.Name));
}
InitialState = Language.ParserData.InitialStates[Root];
}
}