// public Disjunct SubsequenceX(int startIndex, int length)
// {
// //If the 1st core character is included then also include Left
// //If the last core character is included then also include Right
// //Extra restrictions = Must have length > 0, must include 1st or last character, but not both
// SpecialFunctions.CheckCondition(0 <= startIndex && startIndex < Core.Length); //!!!raise error
// string expression = Full.Substring((int) startIndex, (int) length);
// Disjunct disjunct = Disjunct.GetInstance(expression, PatchRegexFactory);
// return disjunct;
// }
public Disjunct Left(int length)
{
SpecialFunctions.CheckCondition(length > 0); //!!!raise error
AASetSequence expression = FullAsAASetSequence.Subsequence(0, Before.Count + (int)length);
Disjunct disjunct = Disjunct.GetInstance(expression.ToString(), PatchRegexFactory);
return(disjunct);
}
