private void PushTokenOnOpeningMark(Stack <Token> openedTokens, MarkTranslatorElement mark, string text,
int index)
{
var fatherToken = openedTokens.Count == 0 ? null : openedTokens.Peek();
var token = new Token(index + mark.From.Opening.Length, mark, fatherToken);
var indexAfterMark = token.StartIndex + token.MarkToTranslate.From.Opening.Length;
if (indexAfterMark >= text.Length ||
indexAfterMark < text.Length && !char.IsWhiteSpace(text[indexAfterMark]))
{
openedTokens.Push(token);
}
}
private bool IsClosing(Stack <Token> openedTokens, MarkTranslatorElement mark, string text, int index)
{
var indexBeforeMark = index - 1;
var isWhiteSpaceBefore = indexBeforeMark > 0 && char.IsWhiteSpace(text[indexBeforeMark]);
if (isWhiteSpaceBefore || openedTokens.Count == 0)
{
return(false);
}
var previousToken = openedTokens.Peek();
while (previousToken != null)
{
if (previousToken.MarkToTranslate.From.Equals(mark.From) && previousToken.StartIndex != index)
{
return(true);
}
previousToken = previousToken.ParentToken;
}
return(false);
}
private static bool IsBetweenDigits(MarkTranslatorElement mark, string text, int index) => IsDigitBefore(text, index) && IsDigitAfter(mark, text, index);
private static void PlaceToken(Stack <Token> openedTokens, ICollection <Token> tokens, MarkTranslatorElement mark,
int index, string text)
{
var previousToken = openedTokens.Pop();
while (!previousToken.MarkToTranslate.From.Equals(mark.From))
{
previousToken = openedTokens.Pop();
}
previousToken.EndIndex = index - 1;
previousToken.Value = text
.Substring(previousToken.StartIndex, previousToken.EndIndex - previousToken.StartIndex + 1);
if (previousToken.ParentToken == null)
{
tokens.Add(previousToken);
}
else
{
previousToken.ParentToken.ChildTokens.Add(previousToken);
}
}
private static bool IsDigitAfter(MarkTranslatorElement mark, string text, int index)
{
return(index + mark.From.Opening.Length < text.Length &&
char.IsDigit(text[index + mark.From.Opening.Length]));
}
public Token(int startIndex, MarkTranslatorElement markToTranslate, Token parentToken = null)
{
StartIndex = startIndex;
MarkToTranslate = markToTranslate;
ParentToken = parentToken;
}