public void Examples(Token keyword, Token name)
{
listeners.ForEach(_ => _.Examples(keyword, name));
}
public void Feature(Token keyword, Token title, Token narrative)
{
events.Add(new GherkinParseEvent(GherkinTokenType.Feature, keyword, title, narrative));
}
public void Step(Token keyword, Token name)
{
events.Add(new GherkinParseEvent(GherkinTokenType.Step, keyword, name));
}
public void Background(Token keyword, Token name)
{
events.Add(new GherkinParseEvent(GherkinTokenType.Background, keyword, name));
}
public void DocString(Token docString)
{
events.Add(new GherkinParseEvent(GherkinTokenType.DocString, docString));
}
public void Step(Token keyword, Token name)
{
string stepText = string.Format("{0} {1}", keyword.Content, name.Content);
var stringStep = new StringStep(stepText, file, keyword.LineInFile.Line);
events.Enqueue(new StepEvent(stepText, e => StepEvent.Invoke(this, new EventArgs<StringStep>(stringStep))));
}
public void Background(Token keyword, Token name)
{
var scenario = new Scenario(name.Content, file, currentFeature, keyword.LineInFile.Line);
currentScenario = scenario;
events.Enqueue(new BackgroundEvent(currentScenario, e => BackgroundEvent.Invoke(this, new EventArgs<Scenario>(scenario))));
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> HandleTitle(SnapshotSpan span, Token token, GherkinTokenType tokenType)
{
var spanText = span.GetText();
var tokenText = token.Content.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries).Select(_ => _.Trim(WhiteSpaces.Chars)).ToList();
foreach (var row in tokenText)
{
var idx = spanText.IndexOf(row, StringComparison.CurrentCulture);
if (idx == -1)
continue;
ITextSnapshotLine containingLine = span.Start.GetContainingLine();
var tokenSpan = new SnapshotSpan(span.Snapshot, new Span(containingLine.Start.Position + idx, row.Length));
var tagSpan = new TagSpan<GherkinTokenTag>(tokenSpan, new GherkinTokenTag(tokenType));
yield return new Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>(tokenSpan, tagSpan);
}
}
private Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>> HandleType(SnapshotSpan span, Token token, GherkinTokenType tokenType)
{
var text = span.GetText();
if (text.TrimStart(WhiteSpaces.Chars).StartsWith(token.Content))
{
var idx = text.IndexOf(token.Content, StringComparison.Ordinal);
ITextSnapshotLine containingLine = span.Start.GetContainingLine();
var tokenSpan = new SnapshotSpan(span.Snapshot, new Span(containingLine.Start.Position + idx, token.Content.Length));
var tagSpan = new TagSpan<GherkinTokenTag>(tokenSpan, new GherkinTokenTag(tokenType));
return new Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>(tokenSpan, tagSpan);
}
return null;
}
public void Tag(Token name)
{
listeners.ForEach(_ => _.Tag(name));
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> HandleComment(SnapshotSpan span, GherkinParseEvent evt)
{
var text = span.GetText();
var isLanguage = new Regex(@"\s*#\s*language\s*(:|\s)\s*(?<language>[a-zA-Z\-]+)");
var match = isLanguage.Match(text);
if (match.Success)
{
foreach (var commentTag in TagLanguageComment(span, evt, match, text))
yield return commentTag;
}
else
{
var r = new Regex(string.Format(@"^\s*#\s*{0}\s*$", evt.Tokens[0].Content));
if (r.IsMatch(text))
{
var t = new Token(text, evt.Tokens[0].LineInFile);
var tag = CreateTag(t, span, evt);
if (tag != null)
yield return tag;
}
}
}
public void Step(Token keyword, Token name)
{
listeners.ForEach(_ => _.Step(keyword, name));
}
public void Scenario(Token keyword, Token title)
{
listeners.ForEach(_ => _.Scenario(keyword, title));
}
public void Feature(Token keyword, Token title, Token narrative)
{
listeners.ForEach(_ => _.Feature(keyword, title, narrative));
}
public void Feature(Token keyword, Token title, Token narrative)
{
CreateFeature(title.Content, narrative.Content, keyword.LineInFile.Line);
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> SyntaxError(SnapshotSpan span, GherkinParseEvent evt)
{
var text = span.GetText();
var token = new Token(text, new LineInFile(-1));
var tag = CreateTag(token, span, GherkinTokenType.SyntaxError, text);
if (tag != null)
yield return tag;
}
public void Scenario(Token keyword, Token title)
{
var scenario = new Scenario(title.Content, file, currentFeature, keyword.LineInFile.Line);
currentScenario = scenario;
events.Enqueue(new ScenarioEvent(currentScenario, e =>
{
scenario.AddTags(e.Tags);
ScenarioEvent.Invoke(this, new EventArgs<Scenario>(scenario));
}));
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> TagLanguageComment(SnapshotSpan span, GherkinParseEvent evt, Match match, string text)
{
var i = text.IndexOf("language");
var t1 = new Token(text.Substring(0, i), evt.Tokens[0].LineInFile);
var comment = CreateTag(t1, span, evt);
if (comment != null)
yield return comment;
var t2 = new Token(match.Value.Substring(i), evt.Tokens[0].LineInFile);
var lang = CreateTag(t2, span, new GherkinParseEvent(GherkinTokenType.Tag, evt.Tokens.ToArray()));
if (lang != null)
yield return lang;
var t3 = new Token(text.Substring(i + t2.Content.Length).TrimEnd(WhiteSpaces.Chars), evt.Tokens[0].LineInFile);
if (t3.Content != "")
{
var end = CreateTag(t3, span, evt);
if (end != null)
yield return end;
}
}
public void Tag(Token tag)
{
events.Enqueue(new TagEvent(tag.Content, e => TagEvent.Invoke(this, new EventArgs<string>(tag.Content))));
}
private Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>> CreateTag(Token token, SnapshotSpan span, GherkinParseEvent evt)
{
var text = span.GetText();
return CreateTag(token, span, evt.GherkinTokenType, text);
}
private Tuple<List<GherkinParseEvent>, List<Feature>> Parse(string content)
{
var features = new List<Feature>();
var nBehaveConfiguration = NBehaveConfiguration.New.DontIsolateInAppDomain().SetDryRun(true);
var gherkinScenarioParser = new GherkinScenarioParser(nBehaveConfiguration);
gherkinScenarioParser.FeatureEvent += (s, e) => features.Add(e.EventInfo);
var gherkinEventListener = new GherkinEventListener();
IListener listener = new CompositeGherkinListener(gherkinEventListener, gherkinScenarioParser);
var newEvents = new List<GherkinParseEvent>();
var parser = new Parser(listener);
try
{
parser.Scan(content);
}
catch (Exception e)
{
var match = new Regex(@"^Line: (?<lineNumber>\d+). (\w+\s*)+ '(?<lineText>.*)'$").Match(e.Message);
if (match.Success && (e is ParseException))
{
var line = int.Parse(match.Groups["lineNumber"].Value);
var lineInFile = new LineInFile(line - 1);
var text = match.Groups["lineText"].Value;
var token = new Token(text, lineInFile);
var error = new Token(e.Message, lineInFile);
newEvents.Add(new GherkinParseEvent(GherkinTokenType.SyntaxError, token, error));
}
}
finally
{
newEvents.AddRange(ToZeroBasedLines(gherkinEventListener).ToList());
}
return new Tuple<List<GherkinParseEvent>, List<Feature>>(newEvents, features);
}
private Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>> CreateTag(Token token, SnapshotSpan span, GherkinTokenType tokenType, string text)
{
foreach (var row in token.Content.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries))
{
string rowText = row.Trim(WhiteSpaces.Chars);
var idx = text.IndexOf(rowText, StringComparison.Ordinal);
if (idx == -1)
continue;
ITextSnapshotLine containingLine = span.Start.GetContainingLine();
var tokenSpan = new SnapshotSpan(span.Snapshot, new Span(containingLine.Start.Position + idx, rowText.Length));
var tagSpan = new TagSpan<GherkinTokenTag>(tokenSpan, new GherkinTokenTag(tokenType));
return new Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>(tokenSpan, tagSpan);
}
return null;
}
public void Comment(Token comment)
{
events.Add(new GherkinParseEvent(GherkinTokenType.Comment, comment));
}
public void Comment(Token comment)
{
}
public void Examples(Token keyword, Token name)
{
events.Add(new GherkinParseEvent(GherkinTokenType.Examples, keyword, name));
}
public void DocString(Token docString)
{
var docStringText = docString.Content;
events.Enqueue(new DocStringEvent(docStringText, e => DocStringEvent.Invoke(this, new EventArgs<string>(docStringText))));
}
public void Scenario(Token keyword, Token title)
{
events.Add(new GherkinParseEvent(GherkinTokenType.Scenario, keyword, title));
}
public void Examples(Token keyword, Token name)
{
events.Enqueue(new ExamplesEvent(e => ExamplesEvent.Invoke(this, new EventArgs())));
}
public void Tag(Token tag)
{
if (tag.Content != "@") //bug in gherkin parser?
{
var previous = events.LastOrDefault() ?? new GherkinParseEvent(GherkinTokenType.SyntaxError);
if (previous.GherkinTokenType == GherkinTokenType.Tag && tag.LineInFile.Line == previous.Tokens[0].LineInFile.Line)
previous.Tokens.Add(tag);
else
events.Add(new GherkinParseEvent(GherkinTokenType.Tag, tag));
}
}
public void DocString(Token docString)
{
listeners.ForEach(_ => _.DocString(docString));
}