private string BuildRegexForExactMatch(CustomEntitySelection selection)
{
string word = selection.Text.Trim();
StringBuilder escapedWord = new StringBuilder(@"(?=(");
if (!word.First().IsDelineating())
{
escapedWord.Append(@"\b");
}
for (int currWordCharIndex = 0; currWordCharIndex < word.Length; currWordCharIndex++)
{
if (word[currWordCharIndex].IsDelineating())
{
escapedWord.Append(@"[\s\p{P}]");
}
else
{
escapedWord.Append(word[currWordCharIndex]);
}
}
if (!word.Last().IsDelineating())
{
escapedWord.Append(@"\b");
}
escapedWord.Append("))");
string pattern = (selection.CaseSensitive) ? @"(?x)" + escapedWord : @"(?ix)" + escapedWord;
return(pattern);
}
public CustomEntityLookupImplementation(CustomEntitiesDefinition entityDefinitions)
{
_targetEntities = entityDefinitions;
_selections = new HashSet <CustomEntitySelection>();
foreach (var tce in _targetEntities.TargetCustomEntities)
{
var entitySelection = new CustomEntitySelection(tce);
_selections.Add(entitySelection);
if (tce.Aliases?.Any() == true)
{
foreach (var alias in tce.Aliases)
{
var aliasSelection = new CustomEntitySelection(tce, alias);
if (!_selections.Contains(aliasSelection))
{
_selections.Add(aliasSelection);
}
}
}
}
}
