public WordToken([NotNull] string text, WordTokenKind kind)
{
Guard.NotNull(text, nameof(text));
Text = text;
Kind = kind;
}
private static bool IsTokenKind([CanBeNull] char?ch, WordTokenKind kind)
{
switch (kind)
{
case WordTokenKind.CamelCaseWord:
case WordTokenKind.PascalCaseWord:
{
return(IsLowerCaseLetter(ch));
}
case WordTokenKind.UpperCaseWord:
{
return(IsUpperCaseLetter(ch));
}
case WordTokenKind.Separators:
{
return(IsSeparator(ch));
}
default:
{
throw new NotSupportedException($"Unexpected token kind {kind}.");
}
}
}
private void ConsumeWhile(WordTokenKind kind)
{
while (IsTokenKind(PeekChar(), kind))
{
position++;
}
position++;
}
private WordToken CreateTokenFromScan(int startIndex, WordTokenKind kind)
{
ConsumeWhile(kind);
if (kind == WordTokenKind.UpperCaseWord && IsLowerCaseLetter(PeekChar()))
{
PutBackLastUpperCaseLetterThatBelongsToNextWord();
}
return(CreateTokenFrom(startIndex, kind));
}
private WordToken CreateTokenFromScan(int startIndex, WordTokenKind kind)
{
ConsumeWhile(kind);
if (kind == WordTokenKind.UpperCaseWord)
{
bool nextCharIsLowerCaseLetter = position < text.Length && IsLowerCaseLetter(text[position]);
if (nextCharIsLowerCaseLetter)
{
PutBackLastUpperCaseLetterThatBelongsToNextWord();
}
}
return(CreateTokenFrom(startIndex, kind));
}
private WordToken CreateTokenFrom(int startIndex, WordTokenKind kind)
{
string value = ExtractText(startIndex);
return(new WordToken(value, kind));
}
