public bool TryParse(string sourceText, out MarkupExtension graph)
{
graph = null;
try
{
ParseTree tree = _parser.Parse(sourceText);
#if DEBUG
// Save result tree for debugging purposes
LastParseTree = tree;
LastException = null;
#endif
if (tree.Status == ParseTreeStatus.Parsed)
{
graph = MarkupExtension.Create(tree.Root);
return true;
}
}
#if DEBUG
catch (Exception ex)
{
LastParseTree = null;
LastException = ex;
}
#else
catch
{
// ignored
}
#endif
return false;
}
public override void BuildAst(LanguageData language, ParseTree parseTree) {
var opHandler = new OperatorHandler(language.Grammar.CaseSensitive);
Util.Check(!parseTree.HasErrors(), "ParseTree has errors, cannot build AST.");
var astContext = new InterpreterAstContext(language, opHandler);
var astBuilder = new AstBuilder(astContext);
astBuilder.BuildAst(parseTree);
}
public virtual void BuildAst(LanguageData language, ParseTree parseTree)
{
if (!LanguageFlags.IsSet(LanguageFlags.CreateAst))
return;
var astContext = new AstContext(language);
var astBuilder = new AstBuilder(astContext);
astBuilder.BuildAst(parseTree);
}
public virtual string RunSample(RunSampleArgs args) {
if (_app == null || args.ParsedSample != _prevSample)
_app = new ScriptApp(args.Language);
_prevSample = args.ParsedSample;
//for (int i = 0; i < 1000; i++) //for perf measurements, to execute 1000 times
_app.Evaluate(args.ParsedSample);
return _app.OutputBuffer.ToString();
}
private string NormalizeParseTree(ParseTree tree) {
StringBuilder fullString = new StringBuilder();
foreach (ParseTreeNode node in tree.Root.ChildNodes) {
fullString.Append(node.Token.Value);
}
fullString = fullString.Replace("\r\n", "\\n");
fullString = fullString.Replace("\n", "\\n");
return fullString.ToString();
}
public virtual void BuildAst(ParseTree parseTree) {
if (parseTree.Root == null)
return;
Context.Messages = parseTree.ParserMessages;
if (!Context.Language.AstDataVerified)
VerifyLanguageData();
if (Context.Language.ErrorLevel == GrammarErrorLevel.Error)
return;
BuildAst(parseTree.Root);
}
//Note: we don't actually parse in current version, only scan. Will implement full parsing in the future,
// to support all intellisense operations
private void ParseSource(string newText) {
//Explicitly catch the case when new text is empty
if (newText != string.Empty) {
_parseTree = _parser.Parse(newText);// .ScanOnly(newText, "Source");
}
//notify views
var views = GetViews();
foreach (var view in views)
view.UpdateParsedSource(_parseTree);
}
public Block ParseString(string Chunk)
{
var parseTree = parser.Parse(Chunk);
curParseTree = parseTree;
var root = parseTree.Root;
if (root == null)
{
var msg = parseTree.ParserMessages[0];
throw new LuaException("", msg.Location.Line, msg.Location.Column, msg.Message);
}
return (ParseBlock(root));
}
/// <summary>
/// クエリを指定して初期化します。
/// </summary>
/// <param name="query">クエリ</param>
public Kbtter3Query(string query)
{
Kbtter3QueryGrammar g = new Kbtter3QueryGrammar();
Parser ps = new Parser(g);
Variables = new Dictionary<string, Kbtter3QueryValue>();
Tree = ps.Parse(query);
if (Tree.Root == null)
{
throw new InvalidOperationException(Tree.ParserMessages[0].Message);
}
}
private string GetParserMessages(ParseTree parseTree)
{
var sb = new StringBuilder();
foreach (var message in parseTree.ParserMessages)
{
sb.AppendFormat("{0} at line {1}, column {2}", message.Message, message.Location.Line, message.Location.Column);
}
sb.AppendLine();
sb.AppendLine("Source Code:");
sb.AppendLine();
sb.Append(parseTree.SourceText);
return sb.ToString();
}
public Block ParseFile(string Filename)
{
var source = File.ReadAllText(Filename);
var parseTree = parser.Parse(source, Filename);
curParseTree = parseTree;
var root = parseTree.Root;
if (root == null)
{
var msg = parseTree.ParserMessages[0];
throw new LuaException(Filename, msg.Location.Line, msg.Location.Column, msg.Message);
}
return (ParseBlock(root));
}
public void Refresh(ParseTree tree)
{
var root = tree.Root;
if (root != null)
{
File = new LuaFile(FileManager.Instance.CurrentFile.File, tree.Tokens); ;
RefreshTree(root);
FileManager.Instance.CurrentFile = File;
System.Diagnostics.Debug.Print("file refreshed.");
}
}
public sqlStmtParser(string tempstmt)
{
this.nowStmt = ReplaceQues(tempstmt);
this.parser = new Parser(new SqlGrammar());
this.wholeTree = parser.Parse(nowStmt);
//Some non-typical sql couldn't be parsed right now
if (wholeTree.Root != null)
{
this.isStmt = true;
this.stmtType = wholeTree.Root.ChildNodes.First();
this.stmtPoints = stmtType.ChildNodes;
}
}
private Expression Analyze(ParseTree tree, CompilerState state)
{
if (tree == null)
{
throw new ArgumentNullException("tree");
}
if (tree.Status != ParseTreeStatus.Parsed)
{
throw new ArgumentException("Cannot build expression on incomplete tree");
}
var root = tree.Root;
return Analyze(root, state);
}
/// <summary>
/// Reads a Dql query into an abstract syntax tree.
/// </summary>
/// <param name="query">Dql query.</param>
/// <param name="node">The current abstract syntax tree to construct.</param>
/// <returns>Time taken to build the abstract syntax tree in milliseconds.</returns>
public long Read(string query, out ParseTree node)
{
var parser = new Parser(language);
var tree = parser.Parse(query);
if (tree.HasErrors())
{
// TODO: Throw LQL errors.
throw new InvalidOperationException();
}
#if DEBUG
this.DisplayTree(tree.Root, 0);
#endif
node = tree;
return tree.ParseTimeMilliseconds;
}
public void ParseSample(string code)
{
if (parser == null || !parser.Language.CanParse()) return;
ParseTree = null;
GC.Collect(); //to avoid disruption of perf times with occasional collections
parser.Context.TracingEnabled = false;//parsetrace not needed for us
try {
parser.Parse(code, "<source>");
}
catch (Exception ex) {
Console.WriteLine(ex.Message);
throw;
}
finally {
ParseTree = parser.Context.CurrentParseTree;
}
}
public CodeCompileUnit GenerateCode(ParseTree tree)
{
var generator = new RuleCodeGenerator();
var unit = new CodeCompileUnit();
var ns = new CodeNamespace(GetType().Namespace);
ns.Imports.Add(new CodeNamespaceImport(GetType().Namespace));
var rules = tree.Root.ChildNodes[0].ChildNodes;
var count = 1;
foreach (var rule in rules)
{
ns.Types.Add(generator.GenerateRuleClass("Rule" + count, rule));
count++;
}
unit.Namespaces.Add(ns);
return unit;
}
public void SetUp()
{
// Given
_grammar = new GherkinGrammar();
_parser = new Parser(_grammar);
_parseTree = _parser
.Parse("# language: en\n" +
"# some other remark\n" +
"Feature: bla bla\n" +
" as a ...\n" +
" i want to ...\n" +
" so that I ...\n" +
" Scenario: first\n" +
" Given a\n" +
" When b\n" +
" Then c\n" +
" Scenario: second\n" +
" Given x\n" +
" When y\n" +
" Then z\n");
}
public static LPModel ConvertParseTreeToModel(ParseTree tree)
{
string modelName = "";
var lpGoal = new LPGoal();
var lpConstraints = new List<LPConstraint>();
if (tree.Root.ToString() == "lpApp")
{
foreach (ParseTreeNode node in tree.Root.ChildNodes)
{
switch (node.ToString())
{
case "lpAppName":
modelName = ParseModelName(node);
break;
case "lpModel":
foreach (ParseTreeNode subNodes in node.ChildNodes)
{
switch (subNodes.ToString())
{
case "lpGoal":
lpGoal = ParseGoal(subNodes);
break;
case "lpConstraints":
lpConstraints = ParseConstraints(subNodes);
break;
}
}
break;
}
}
}
else
{
throw new Exception("The Root element is not Correct");
}
return new LPModel(modelName.Replace("(appIdentifier)", "").Replace(" ", ""), lpGoal, lpConstraints);
}
public void Generate(ParseTree parseTree) {
if (parseTree == null) return;
GeneratedOK = true;
defaultClass = ag.Public.Class("Default");
typeTable.Add("Default", defaultClass);
mainMethod = defaultClass.Public.Static.Method(typeof(void), "Main");
//generator stack
typeStack.Push(defaultClass);
funcStack.Push(mainMethod);
//InitIO();
InitRequiredType();
PushScope();
var ioOperand = mainMethod.Local(exp.New(typeTable["IO"]));
ParseNode(parseTree.Root);
if (GeneratedOK) {
ag.Save();
AppDomain.CurrentDomain.ExecuteAssembly(name + ".exe");
}
}
private void CreateParser()
{
ParseTree = null;
language = new LanguageData(grammar);
parser = new Parser(language);
}
public object Evaluate(ParseTree parsedScript)
{
var result = App.Evaluate(parsedScript);
return result;
}
public void Validate(ParseTree parseTree)
{
if (parseTree.HasErrors() && parseTree.ParserMessages.Count > 0)
{
var message = parseTree.ParserMessages[0];
var error = message.Message + " at " + message.Location.ToUiString();
throw new Exception(error);
}
}
public override string RunSample(ParseTree parsedSample)
{
var converter = new WikiHtmlConverter();
var html = converter.Convert(this, parsedSample.Tokens);
var path = Path.Combine(Path.GetTempPath(), "@wikiSample.html");
File.WriteAllText(path, html);
System.Diagnostics.Process.Start(path);
return html;
}
private void txtSource_TextChanged(object sender, FastColoredTextBoxNS.TextChangedEventArgs e) {
_parseTree = null; //force it to recompile on run
}
private void LoadSourceFile(string path) {
_parseTree = null;
StreamReader reader = null;
try {
reader = new StreamReader(path);
txtSource.Text = null; //to clear any old formatting
txtSource.ClearUndo();
txtSource.ClearStylesBuffer();
txtSource.Text = reader.ReadToEnd();
txtSource.SetVisibleState(0, FastColoredTextBoxNS.VisibleState.Visible);
txtSource.Selection = txtSource.GetRange(0, 0);
} catch (Exception e) {
MessageBox.Show(e.Message);
} finally {
if (reader != null)
reader.Close();
}
}
private void ParseSample() {
ClearParserOutput();
if (_parser == null || !_parser.Language.CanParse()) return;
_parseTree = null;
GC.Collect(); //to avoid disruption of perf times with occasional collections
_parser.Context.TracingEnabled = chkParserTrace.Checked;
try {
_parser.Parse(txtSource.Text, "<source>");
} catch (Exception ex) {
gridCompileErrors.Rows.Add(null, ex.Message, null);
tabBottom.SelectedTab = pageParserOutput;
throw;
} finally {
_parseTree = _parser.Context.CurrentParseTree;
ShowCompilerErrors();
if (chkParserTrace.Checked) {
ShowParseTrace();
}
ShowCompileStats();
ShowParseTree();
ShowAstTree();
}
}
private void CreateParser() {
StopHighlighter();
btnRun.Enabled = false;
txtOutput.Text = string.Empty;
_parseTree = null;
btnRun.Enabled = _grammar is ICanRunSample;
_language = new LanguageData(_grammar);
_parser = new Parser (_language);
ShowParserConstructionResults();
StartHighlighter();
}
public AstBuilder(PowerShellGrammar grammar, ParseTree parseTree)
{
_grammar = grammar;
_parseTree = parseTree;
}
public void EvaluateAsync(ParseTree parsedScript) {
ParsedScript = parsedScript;
EvaluateAsync();
}
public ParseTree(Irony.Parsing.ParseTree parseTree)
{
this.parseTree = parseTree;
}