public bool Match_DocStringSeparator(Token token)
{
return activeDocStringSeparator == null
// open
? Match_DocStringSeparator(token, GherkinLanguageConstants.DOCSTRING_SEPARATOR, true) ||
Match_DocStringSeparator(token, GherkinLanguageConstants.DOCSTRING_ALTERNATIVE_SEPARATOR, true)
// close
: Match_DocStringSeparator(token, activeDocStringSeparator, false);
}
public bool Match_EOF(Token token)
{
if (token.IsEOF)
{
SetTokenMatched(token, TokenType.EOF);
return true;
}
return false;
}
public bool Match_Empty(Token token)
{
if (token.Line.IsEmpty())
{
SetTokenMatched(token, TokenType.Empty);
return true;
}
return false;
}
protected virtual void SetTokenMatched(Token token, TokenType matchedType, string text = null, string keyword = null, int? indent = null, GherkinLineSpan[] items = null)
{
token.MatchedType = matchedType;
token.MatchedKeyword = keyword;
token.MatchedText = text;
token.MatchedItems = items;
token.MatchedGherkinDialect = CurrentDialect;
token.MatchedIndent = indent ?? (token.Line == null ? 0 : token.Line.Indent);
token.Location = new Location(token.Location.Line, token.MatchedIndent + 1);
}
public bool Match_Comment(Token token)
{
if (token.Line.StartsWith(GherkinLanguageConstants.COMMENT_PREFIX))
{
var text = token.Line.GetLineText(); //take the entire line
SetTokenMatched(token, TokenType.Comment, text, indent: 0);
return true;
}
return false;
}
public bool Match_TagLine(Token token)
{
if (token.Line.StartsWith(GherkinLanguageConstants.TAG_PREFIX))
{
SetTokenMatched(token, TokenType.TagLine, items: token.Line.GetTags().ToArray());
return true;
}
return false;
}
public bool Match_TableRow(Token token)
{
if (token.Line.StartsWith(GherkinLanguageConstants.TABLE_CELL_SEPARATOR))
{
SetTokenMatched(token, TokenType.TableRow, items: token.Line.GetTableCells().ToArray());
return true;
}
return false;
}
public bool Match_StepLine(Token token)
{
var keywords = CurrentDialect.StepKeywords;
foreach (var keyword in keywords)
{
if (token.Line.StartsWith(keyword))
{
var stepText = token.Line.GetRestTrimmed(keyword.Length);
SetTokenMatched(token, TokenType.StepLine, keyword: keyword, text: stepText);
return true;
}
}
return false;
}
public bool Match_ScenarioOutlineLine(Token token)
{
return MatchTitleLine(token, TokenType.ScenarioOutlineLine, CurrentDialect.ScenarioOutlineKeywords);
}
public void Feature(Token keyword, Token name)
{
if (NextEvent("feature", keyword.Position))
listener.Feature(keyword, name);
}
public void Step(Token keyword, Token name, StepKind stepKind)
{
if (NextEvent("step", keyword.Position))
listener.Step(keyword, name, stepKind);
}
private bool Match_DocStringSeparator(Token token, string separator, bool isOpen)
{
if (token.Line.StartsWith(separator))
{
string contentType = null;
if (isOpen)
{
contentType = token.Line.GetRestTrimmed(separator.Length);
activeDocStringSeparator = separator;
indentToRemove = token.Line.Indent;
}
else
{
activeDocStringSeparator = null;
indentToRemove = 0;
}
SetTokenMatched(token, TokenType.DocStringSeparator, contentType);
return true;
}
return false;
}
private static string GetMessage(Token receivedToken, string[] expectedTokenTypes)
{
if (receivedToken == null) throw new ArgumentNullException("receivedToken");
if (expectedTokenTypes == null) throw new ArgumentNullException("expectedTokenTypes");
return string.Format("expected: {0}, got '{1}'",
string.Join(", ", expectedTokenTypes),
receivedToken.GetTokenValue().Trim());
}
public UnexpectedTokenException(Token receivedToken, string[] expectedTokenTypes, string stateComment)
: base(GetMessage(receivedToken, expectedTokenTypes), receivedToken)
{
if (receivedToken == null) throw new ArgumentNullException("receivedToken");
if (expectedTokenTypes == null) throw new ArgumentNullException("expectedTokenTypes");
ReceivedToken = receivedToken;
ExpectedTokenTypes = expectedTokenTypes;
StateComment = stateComment;
}
private static Location GetLocation(Token receivedToken)
{
return receivedToken.IsEOF || receivedToken.Location.Column > 1
? receivedToken.Location
: new Location(receivedToken.Location.Line, receivedToken.Line.Indent + 1);
}
protected TokenParserException(string message, Token receivedToken)
: base(message, GetLocation(receivedToken))
{
}
protected TokenParserException(string message, Token receivedToken)
: base(message, GetLocation(receivedToken))
{
if (receivedToken == null) throw new ArgumentNullException("receivedToken");
}
private static string GetMessage(Token receivedToken, string[] expectedTokenTypes)
{
return string.Format("expected: {0}, got '{1}'",
string.Join(", ", expectedTokenTypes),
receivedToken.GetTokenValue().Trim());
}
public void Tag(Token name)
{
if (NextEvent("tag", name.Position))
listener.Tag(name);
}
private ParserException CreateTokenMatcherException(Token token, string message)
{
return new AstBuilderException(message, new Location(token.Location.Line, token.Line.Indent + 1));
}
private bool MatchTitleLine(Token token, TokenType tokenType, string[] keywords)
{
foreach (var keyword in keywords)
{
if (token.Line.StartsWithTitleKeyword(keyword))
{
var title = token.Line.GetRestTrimmed(keyword.Length + GherkinLanguageConstants.TITLE_KEYWORD_SEPARATOR.Length);
SetTokenMatched(token, tokenType, keyword: keyword, text: title);
return true;
}
}
return false;
}
public void Scenario(Token keyword, Token name)
{
if (NextEvent("scenario", keyword.Position))
listener.Scenario(keyword, name);
}
public bool Match_BackgroundLine(Token token)
{
return MatchTitleLine(token, TokenType.BackgroundLine, CurrentDialect.BackgroundKeywords);
}
public void ScenarioOutline(Token keyword, Token name)
{
if (NextEvent("scenario_outline", keyword.Position))
listener.ScenarioOutline(keyword, name);
}
public bool Match_ExamplesLine(Token token)
{
return MatchTitleLine(token, TokenType.ExamplesLine, CurrentDialect.ExamplesKeywords);
}
public void PythonString(Token pyString)
{
if (NextEvent("py_string", pyString.Position))
listener.PythonString(pyString);
}
public bool Match_Language(Token token)
{
var match = LANGUAGE_PATTERN.Match(token.Line.GetLineText());
if (match.Success)
{
var language = match.Groups[1].Value;
SetTokenMatched(token, TokenType.Language, language);
try
{
currentDialect = dialectProvider.GetDialect(language, token.Location);
}
catch (NotSupportedException ex)
{
throw CreateTokenMatcherException(token, ex.Message);
}
return true;
}
return false;
}
public bool Match_Other(Token token)
{
var text = token.Line.GetLineText(indentToRemove); //take the entire line, except removing DocString indents
SetTokenMatched(token, TokenType.Other, text, indent: 0);
return true;
}
public bool Match_FeatureLine(Token token)
{
return MatchTitleLine(token, TokenType.FeatureLine, CurrentDialect.FeatureKeywords);
}
public void Examples(Token keyword, Token name)
{
if (NextEvent("examples", keyword.Position))
listener.Examples(keyword, name);
}