/// <summary>
/// Finds the list of string that matches any of the patterns with the indices of each occurrence in sequence.
/// </summary>
/// <param name="patterns">List of patterns that needs to be searched in Sequence.</param>
/// <param name="startIndex">Minimum index in Sequence at which match has to start.</param>
/// <param name="ignoreCase">
/// if true ignore character casing while match.
/// <remarks>
/// Note that symbols in Sequence are always Upper case.
/// </remarks>
/// </param>
/// <returns></returns>
public IDictionary <string, IList <int> > FindMatches(IList <string> patterns, int startIndex = 0, bool ignoreCase = true)
{
if (PatternFinder == null)
{
PatternFinder = new BoyerMoore();
}
return(PatternFinder.FindMatch(
this,
PatternConverter.GetInstanace(this.Alphabet).Convert(patterns).Values.SelectMany(pattern => pattern).ToList()));
}
/// <summary>
/// Returns an instance of PatternConverter
/// </summary>
public static IPatternConverter GetInstanace(IAlphabet alphabetSet)
{
IPatternConverter patternConverter = null;
if (!_patternConverter.TryGetValue(alphabetSet, out patternConverter))
{
lock (_patternConverter)
{
if (!_patternConverter.TryGetValue(alphabetSet, out patternConverter))
{
patternConverter = new PatternConverter(alphabetSet);
_patternConverter.Add(alphabetSet, patternConverter);
}
}
}
return(patternConverter);
}