/// <summary>
/// Initializes a new instance of the <see cref="GrammarMonitor" /> class.
/// </summary>
/// <param name="grammar">The grammar.</param>
/// <param name="synchronizationContext">The synchronization context.</param>
/// <exception cref="ArgumentNullException">
/// grammar
/// or
/// synchronizationContext are <see langword="null" />
/// </exception>
/// <exception cref="T:System.Security.SecurityException">
/// The caller does not have the required permission to access the
/// grammar assembly.
/// </exception>
/// <exception cref="T:System.UnauthorizedAccessException">Access to the grammar assembly is denied.</exception>
public GrammarMonitor([NotNull] GrammarReference grammar, [NotNull] SynchronizationContext synchronizationContext)
{
Grammar = grammar ?? throw new ArgumentNullException(nameof(grammar));
_SynchronizationContext = synchronizationContext ?? throw new ArgumentNullException(nameof(synchronizationContext));
_Watcher = CreateAssemblyWatcher(new FileInfo(grammar.AssemblyPath));
}
private static void DisplayTokens(GrammarReference grammar, string data)
{
var analyzer = new Grammar.Analyzer();
var tokens = analyzer.Tokenize(grammar, data);
foreach (var token in tokens)
{
Console.WriteLine(token.ToString());
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ParserWorkItem" /> struct.
/// </summary>
/// <param name="grammar">The grammar to parse with.</param>
/// <param name="parserRuleName">Name of the parser rule.</param>
/// <param name="text">The text to parse.</param>
/// <param name="options">The parser options.</param>
/// <param name="parseWhen">The DateTime indicating when to parse.</param>
/// <exception cref="ArgumentNullException"><paramref name="grammar" /> is <see langword="null" />.</exception>
/// <exception cref="ArgumentNullException"><paramref name="parserRuleName" /> is <see langword="null" /> or empty.</exception>
public ParserWorkItem(
[NotNull] GrammarReference grammar,
[NotNull] string parserRuleName,
string text,
ParseOption options,
DateTime parseWhen)
{
Grammar = grammar ?? throw new ArgumentNullException(nameof(grammar));
ParserRuleName = parserRuleName ?? throw new ArgumentNullException(nameof(parserRuleName));
Text = text;
Options = options;
ParseWhen = parseWhen;
}
private static void LoadGui(string data, GrammarReference grammar, string parserRule)
{
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
var visualAnalyzer = new VisualAnalyzer();
visualAnalyzer.SetSourceCode(data);
visualAnalyzer.SetGrammar(grammar);
if (grammar.Parser != null || !parserRule.Equals("tokens", StringComparison.InvariantCultureIgnoreCase))
{
visualAnalyzer.SetDefaultParserRule(parserRule);
}
Application.Run(visualAnalyzer);
}
}
/// <inheritdoc />
public void Parse(GrammarReference grammar, string parserRuleName, string text, ParseOption options)
{
lock (_Padlock)
{
var nextRun = CalculateNextRunTime(_PreviousNodeQty, 50, 5, 1000);
var work = new ParserWorkItem(grammar, parserRuleName, text, options, nextRun);
QueuedWork.Enqueue(work);
_LastQueuedTime = DateTime.Now;
if (ParserTask.IsCompleted)
{
ParserTask = new Task(ParserWorkLoop);
}
if (ParserTask.Status != TaskStatus.Running)
{
ParserTask.Start();
}
}
}
/// <summary>
/// Attempts to load a the syntax highlighting guide from path for the specified grammar.
/// </summary>
/// <param name="grammar">The grammar to load a guide for.</param>
/// <param name="scanner">The scanner to use.</param>
/// <param name="loader">The loader to use.</param>
/// <param name="searchPath">The search path.</param>
/// <returns>A new <see cref="Tuple{ISyntaxHighlightingGuide, SyntaxHighlightingGuideReference}"/> or <see langword="null"/>.</returns>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="grammar" />
/// or
/// <paramref name="scanner" />
/// or
/// <paramref name="loader" />
/// or
/// <paramref name="searchPath" /> are <see langword="null" /> or empty.
/// </exception>
/// <exception cref="T:System.IO.FileLoadException">A file that was found could not be loaded.</exception>
/// <exception cref="T:System.IO.FileNotFoundException">The assembly path is an empty string ("") or does not exist.</exception>
/// <exception cref="T:System.BadImageFormatException">The assembly path is not a valid assembly.</exception>
public static Tuple <SyntaxHighlightingGuideReference, ISyntaxHighlightingGuide> LoadSyntaxGuideFromPath(
[NotNull] GrammarReference grammar,
[NotNull] Scanner scanner,
[NotNull] Loader loader,
[NotNull] string searchPath)
{
if (grammar == null)
{
throw new ArgumentNullException(nameof(grammar));
}
if (scanner == null)
{
throw new ArgumentNullException(nameof(scanner));
}
if (loader == null)
{
throw new ArgumentNullException(nameof(loader));
}
if (string.IsNullOrEmpty(searchPath))
{
throw new ArgumentNullException(nameof(searchPath));
}
var guideReferences = scanner.LocateAllSyntaxGuides(searchPath);
foreach (var reference in guideReferences)
{
var guide = loader.LoadSyntaxGuide(reference);
if (guide != null && guide.GrammarName == grammar.GrammarName)
{
return(new Tuple <SyntaxHighlightingGuideReference, ISyntaxHighlightingGuide>(reference, guide));
}
}
return(null);
}
/// <summary>
/// Attempts to load a syntax highlighting guide for the grammar.
/// </summary>
/// <param name="grammar">The grammar to use.</param>
/// <returns>A new <see cref="Tuple{ISyntaxHighlightingGuide, SyntaxHighlightingGuideReference}"/> or <see langword="null"/>.</returns>
/// <exception cref="ArgumentNullException"><paramref name="grammar"/> is <see langword="null"/>.</exception>
/// <exception cref="T:System.IO.FileLoadException">A file that was found could not be loaded.</exception>
/// <exception cref="T:System.IO.FileNotFoundException">The assembly path is an empty string ("") or does not exist.</exception>
/// <exception cref="T:System.BadImageFormatException">The assembly path is not a valid assembly.</exception>
public static Tuple <SyntaxHighlightingGuideReference, ISyntaxHighlightingGuide> LoadSyntaxHighlightingGuide([NotNull] this GrammarReference grammar)
{
if (grammar == null)
{
throw new ArgumentNullException(nameof(grammar));
}
var scanner = new Scanner();
var loader = new Loader();
// First try loading a guide from the target assembly's directory
var pathRoot = Path.GetDirectoryName(grammar.AssemblyPath);
Tuple <SyntaxHighlightingGuideReference, ISyntaxHighlightingGuide> guideResult = null;
if (Directory.Exists(pathRoot))
{
guideResult = SyntaxHighlighting.LoadSyntaxGuideFromPath(grammar, scanner, loader, pathRoot);
if (guideResult != null)
{
return(guideResult);
}
}
// Now try loading a guide from the Grun.Net Guides folder
pathRoot = Path.GetDirectoryName(Assembly.GetExecutingAssembly().CodeBase);
// ReSharper disable once AssignNullToNotNullAttribute
pathRoot = Path.Combine(pathRoot, "Guides");
if (Directory.Exists(pathRoot))
{
guideResult = SyntaxHighlighting.LoadSyntaxGuideFromPath(grammar, scanner, loader, pathRoot);
}
return(guideResult);
}
