/**
* Returns a look-ahead set with all conflicts between two
* look-ahead sets.
*
* @param pattern the pattern name being analyzed
* @param location the pattern location
* @param set1 the first look-ahead set
* @param set2 the second look-ahead set
*
* @return a look-ahead set with the conflicts found
*
* @throws ParserCreationException if an inherent ambiguity was
* found among the look-ahead sets
*/
private LookAheadSet FindConflicts(string pattern,
string location,
LookAheadSet set1,
LookAheadSet set2)
{
LookAheadSet result;
result = set1.CreateIntersection(set2);
if (result.IsRepetitive())
{
ThrowAmbiguityException(pattern, location, result);
}
return(result);
}
/**
* Returns a look-ahead set with all conflicts between two
* look-ahead sets.
*
* @param pattern the pattern name being analyzed
* @param location the pattern location
* @param set1 the first look-ahead set
* @param set2 the second look-ahead set
*
* @return a look-ahead set with the conflicts found
*
* @throws ParserCreationException if an inherent ambiguity was
* found among the look-ahead sets
*/
private LookAheadSet FindConflicts(string pattern,
string location,
LookAheadSet set1,
LookAheadSet set2) {
LookAheadSet result;
result = set1.CreateIntersection(set2);
if (result.IsRepetitive()) {
ThrowAmbiguityException(pattern, location, result);
}
return result;
}
