public bool Equals(GherkinParseEvent obj)
{
if (obj == null)
return false;
if (ReferenceEquals(this, obj)) return true;
if (obj.GetType() != GetType()) return false;
return obj.GherkinTokenType == GherkinTokenType
&& TokensAreEqual(obj);
}
private bool TokensAreEqual(GherkinParseEvent other)
{
if (other.Tokens.Count != Tokens.Count)
return false;
for (int i = 0; i < Tokens.Count; i++)
{
if (Tokens[i] != other.Tokens[i])
return false;
}
return true;
}
private void NotifyChanges(ITextSnapshot textSnapshot, IEnumerable<GherkinParseEvent> newAndChanged)
{
var linesChanged = newAndChanged
.Where(_ => _.Tokens.Any())
.Select(_ => _.Tokens[0].LineInFile.Line)
.Distinct().ToArray();
int from = linesChanged.Min();
int to = linesChanged.Max();
var previousEvent = new GherkinParseEvent(GherkinTokenType.Feature, new Token("", new LineInFile(0)));
for (int i = from; i <= to; i++)
{
ITextSnapshotLine line = textSnapshot.GetLineFromLineNumber(i);
var s = new SnapshotSpan(textSnapshot, line.Start, line.Length);
GherkinParseEvent evt = newAndChanged.FirstOrDefault(_ => _.Tokens.Any() && _.Tokens[0].LineInFile.Line == i) ??
new GherkinParseEvent(previousEvent.GherkinTokenType, new Token("", new LineInFile(i)));
TokenParserEvent.Invoke(this, new TokenParserEventArgs(evt, s));
previousEvent = evt;
}
var lastLine = textSnapshot.GetLineFromLineNumber(to);
TokenParserEvent.Invoke(this, new TokenParserEventArgs(new GherkinParseEvent(GherkinTokenType.Eof), new SnapshotSpan(textSnapshot, lastLine.Start, 0)));
}
private Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>> CreateTag(Token token, SnapshotSpan span, GherkinParseEvent evt)
{
var text = span.GetText();
return CreateTag(token, span, evt.GherkinTokenType, text);
}
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;
}
}
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;
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> HandleTag(SnapshotSpan span, GherkinParseEvent evt, GherkinTokenType tokenType, GherkinTokenType tokenTitleType)
{
if (!evt.Tokens.Any())
yield break;
var t1 = HandleType(span, evt.Tokens.First(), tokenType);
if (t1 != null) yield return t1;
if (evt.Tokens.Count >= 2)
{
var t2 = HandleTitle(span, evt.Tokens[1], tokenTitleType);
foreach (var tuple in t2)
yield return tuple;
}
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> HandleTag(SnapshotSpan span, GherkinParseEvent evt)
{
var tags = new List<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>>();
foreach (var token in evt.Tokens)
tags.AddRange(HandleTitle(span, token, GherkinTokenType.Tag));
return tags;
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> HandleBackground(SnapshotSpan span, GherkinParseEvent evt)
{
return HandleTag(span, evt, GherkinTokenType.Background, GherkinTokenType.BackgroundTitle);
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> HandleTableCell(SnapshotSpan span, GherkinParseEvent evt)
{
var tokenType = cellToggle ? GherkinTokenType.TableCell : GherkinTokenType.TableCellAlt;
cellToggle = !cellToggle;
return TableItem(span, tokenType);
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> HandleStep(SnapshotSpan span, GherkinParseEvent evt)
{
return HandleTag(span, evt, GherkinTokenType.Step, GherkinTokenType.StepText);
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> HandleSpan(SnapshotSpan span, GherkinParseEvent evt)
{
ITextSnapshotLine containingLine = span.Start.GetContainingLine();
var tokenSpan = new SnapshotSpan(span.Snapshot, new Span(containingLine.Start.Position, containingLine.Length));
var tagSpan = new TagSpan<GherkinTokenTag>(tokenSpan, new GherkinTokenTag(evt.GherkinTokenType));
yield return new Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>(tokenSpan, tagSpan);
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> HandleScenario(SnapshotSpan span, GherkinParseEvent evt)
{
return HandleTag(span, evt, GherkinTokenType.Scenario, GherkinTokenType.ScenarioTitle);
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> HandleFeature(SnapshotSpan span, GherkinParseEvent evt)
{
if (!evt.Tokens.Any())
yield break;
var t1 = HandleType(span, evt.Tokens.First(), GherkinTokenType.Feature);
if (t1 != null) yield return t1;
if (evt.Tokens.Count >= 2)
{
var t2 = HandleTitle(span, evt.Tokens[1], GherkinTokenType.FeatureTitle);
foreach (var tuple in t2)
yield return tuple;
}
if (evt.Tokens.Count == 3)
{
var t3 = HandleTitle(span, evt.Tokens[2], GherkinTokenType.FeatureDescription);
foreach (var tuple in t3)
yield return tuple;
}
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> HandleDocString(SnapshotSpan span, GherkinParseEvent evt)
{
var text = span.GetText().Trim(WhiteSpaces.Chars);
if (text == "\"\"\"")
return HandleText(span, GherkinTokenType.Tag, "\"");
//TODO: dont color the spaces that will be removed
ITextSnapshotLine containingLine = span.Start.GetContainingLine();
var tokenSpan = new SnapshotSpan(span.Snapshot, new Span(containingLine.Start.Position, containingLine.Length));
var tagSpan = new TagSpan<GherkinTokenTag>(tokenSpan, new GherkinTokenTag(evt.GherkinTokenType));
return new[] { new Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>(tokenSpan, tagSpan) };
}
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;
}
}
}
private IEnumerable<Tuple<SnapshotSpan, TagSpan<GherkinTokenTag>>> HandleTableHeader(SnapshotSpan span, GherkinParseEvent evt)
{
cellToggle = false;
return TableItem(span, evt.GherkinTokenType);
}
public TokenParserEventArgs(GherkinParseEvent evt, SnapshotSpan snapshotSpan)
{
Event = evt;
SnapshotSpan = snapshotSpan;
}
