/// <inheritdoc/>
public ClassifierAction NextCharacter(char nextCharacter)
{
if (isFirstCharacter)
{
isFirstCharacter = false;
return(nextCharacter == '\''
? ClassifierAction.ContinueReading()
: ClassifierAction.GiveUp());
}
else
{
if (nextCharacter == '\\')
{
isEscaped = true;
return(ClassifierAction.ContinueReading());
}
else if (nextCharacter == '\'')
{
if (isEscaped)
{
isEscaped = false;
return(ClassifierAction.ContinueReading());
}
else
{
return(ClassifierAction.TokenizeImmediately());
}
}
else
{
return(ClassifierAction.ContinueReading());
}
}
}
/// <inheritdoc/>
public ClassifierAction NextCharacter(char nextCharacter)
{
bool isMatched = nextCharacter == MatchedCharacter;
return(isMatched
? ClassifierAction.TokenizeImmediately()
: ClassifierAction.GiveUp());
}
/// <inheritdoc/>
public ClassifierAction NextCharacter(char nextCharacter)
{
return(nextCharacter switch
{
'\r' => ClassifierAction.ContinueReading(),
'\n' => ClassifierAction.TokenizeImmediately(),
_ => ClassifierAction.GiveUp()
});
/// <inheritdoc/>
public ClassifierAction NextCharacter(char nextCharacter)
{
switch (state)
{
case State.ExpectingStartingSlash:
{
if (nextCharacter == '/')
{
state = State.ExpectingStartingAsterisk;
return(ClassifierAction.ContinueReading());
}
else
{
return(ClassifierAction.GiveUp());
}
}
case State.ExpectingStartingAsterisk:
{
if (nextCharacter == '*')
{
state = State.ExpectingEndingAsterisk;
return(ClassifierAction.ContinueReading());
}
else
{
return(ClassifierAction.GiveUp());
}
}
case State.ExpectingEndingAsterisk:
{
if (nextCharacter == '*')
{
state = State.ExpectingEndingSlash;
}
return(ClassifierAction.ContinueReading());
}
default:
{
if (nextCharacter == '/')
{
return(ClassifierAction.TokenizeImmediately());
}
else
{
state = State.ExpectingStartingAsterisk;
return(ClassifierAction.ContinueReading());
}
}
}
}
/// <inheritdoc/>
public ClassifierAction NextCharacter(char nextCharacter)
{
if (modeIndex == 0)
{
modeIndex = 1;
if (nextCharacter == '/')
{
return(ClassifierAction.ContinueReading());
}
else
{
return(ClassifierAction.GiveUp());
}
}
else if (modeIndex == 1)
{
modeIndex = 2;
if (nextCharacter == '*')
{
return(ClassifierAction.ContinueReading());
}
else
{
return(ClassifierAction.GiveUp());
}
}
else if (modeIndex == 2)
{
if (nextCharacter == '*')
{
modeIndex = 3;
return(ClassifierAction.ContinueReading());
}
else
{
return(ClassifierAction.ContinueReading());
}
}
else
{
if (nextCharacter == '/')
{
return(ClassifierAction.TokenizeImmediately());
}
else
{
modeIndex = 2;
return(ClassifierAction.ContinueReading());
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="UvssClassifierVisitor"/> class.
/// </summary>
/// <param name="registry">The classification type registry service.</param>
/// <param name="classifier">The action which is called when a span is classified.</param>
public UvssClassifierVisitor(IClassificationTypeRegistryService registry, ClassifierAction classifier)
{
this.typeUvssComment = registry.GetClassificationType("UvssComment");
this.typeUvssNumber = registry.GetClassificationType("UvssNumber");
this.typeUvssKeyword = registry.GetClassificationType("UvssKeyword");
this.typeUvssSelector = registry.GetClassificationType("UvssSelector");
this.typeUvssPropertyName = registry.GetClassificationType("UvssPropertyName");
this.typeUvssPropertyValue = registry.GetClassificationType("UvssPropertyValue");
this.typeUvssStoryboard = registry.GetClassificationType("UvssStoryboard");
this.typeUvssTypeName = registry.GetClassificationType("UvssTypeName");
this.typeUvssDirective = registry.GetClassificationType("UvssDirective");
this.classifier = classifier;
}
/// <summary>
/// Initializes a new instance of the <see cref="UvssClassifierVisitor"/> class.
/// </summary>
/// <param name="registry">The classification type registry service.</param>
/// <param name="classifier">The action which is called when a span is classified.</param>
public UvssClassifierVisitor(IClassificationTypeRegistryService registry, ClassifierAction classifier)
{
this.typeUvssComment = registry.GetClassificationType("UvssComment");
this.typeUvssNumber = registry.GetClassificationType("UvssNumber");
this.typeUvssKeyword = registry.GetClassificationType("UvssKeyword");
this.typeUvssSelector = registry.GetClassificationType("UvssSelector");
this.typeUvssPropertyName = registry.GetClassificationType("UvssPropertyName");
this.typeUvssPropertyValue = registry.GetClassificationType("UvssPropertyValue");
this.typeUvssStoryboard = registry.GetClassificationType("UvssStoryboard");
this.typeUvssTypeName = registry.GetClassificationType("UvssTypeName");
this.typeUvssDirective = registry.GetClassificationType("UvssDirective");
this.classifier = classifier;
}
/// <inheritdoc/>
public ClassifierAction NextCharacter(char nextCharacter)
{
if (characterIndex == 0 ||
characterIndex == 1)
{
characterIndex++;
return(nextCharacter == '/'
? ClassifierAction.ContinueReading()
: ClassifierAction.GiveUp());
}
else
{
return(nextCharacter == '\n' ||
nextCharacter == '\r'
? ClassifierAction.TokenizeFromLast()
: ClassifierAction.ContinueReading());
}
}
/// <inheritdoc/>
public ClassifierAction NextCharacter(char nextCharacter)
{
bool isMatched = IsMatched(nextCharacter);
if (!IsFirstCharacter)
{
if (!isMatched)
{
return(ClassifierAction.TokenizeFromLast());
}
}
IsFirstCharacter = false;
return(isMatched
? ClassifierAction.ContinueReading()
: ClassifierAction.GiveUp());
}
/// <inheritdoc/>
public ClassifierAction NextCharacter(char nextCharacter)
{
bool isMatched = char.IsWhiteSpace(nextCharacter) &&
nextCharacter != '\r' &&
nextCharacter != '\n';
if (!IsFirstCharacter)
{
if (!isMatched)
{
return(ClassifierAction.TokenizeFromLast());
}
}
IsFirstCharacter = false;
return(isMatched
? ClassifierAction.ContinueReading()
: ClassifierAction.GiveUp());
}
/// <inheritdoc/>
public ClassifierAction NextCharacter(char nextCharacter)
{
if (currentIndex == Keyword.Length)
{
return(char.IsLetterOrDigit(nextCharacter)
? ClassifierAction.GiveUp()
: ClassifierAction.TokenizeFromLast());
}
else
{
if (nextCharacter == Keyword[currentIndex])
{
currentIndex++;
return(ClassifierAction.ContinueReading());
}
else
{
return(ClassifierAction.GiveUp());
}
}
}
/// <inheritdoc/>
public ClassifierAction NextCharacter(char nextCharacter)
{
string keyword = MatchedString;
if (currentIndex == keyword.Length)
{
return(ClassifierAction.TokenizeFromLast());
}
else
{
if (nextCharacter == keyword[currentIndex])
{
currentIndex++;
return(ClassifierAction.ContinueReading());
}
else
{
return(ClassifierAction.GiveUp());
}
}
}
/// <inheritdoc/>
public ClassifierAction NextCharacter(char nextCharacter)
{
if (characterIndex == 0)
{
characterIndex++;
if (nextCharacter == '/')
{
return(ClassifierAction.ContinueReading());
}
else
{
return(ClassifierAction.GiveUp());
}
}
if (characterIndex == 1)
{
characterIndex++;
if (nextCharacter == '/')
{
return(ClassifierAction.ContinueReading());
}
else
{
return(ClassifierAction.GiveUp());
}
}
else
{
characterIndex++;
if (nextCharacter == '\n')
{
return(ClassifierAction.TokenizeImmediately());
}
else
{
return(ClassifierAction.ContinueReading());
}
}
}
/// <inheritdoc/>
public ClassifierAction NextCharacter(char nextCharacter)
{
bool isMatched = char.IsDigit(nextCharacter) ||
nextCharacter == '.';
if (!isFirstCharacter)
{
if (!isMatched)
{
return(ClassifierAction.TokenizeFromLast());
}
}
else if (nextCharacter == '-')
{
return(ClassifierAction.ContinueReading());
}
isFirstCharacter = false;
return(isMatched
? ClassifierAction.ContinueReading()
: ClassifierAction.GiveUp());
}
