//*
// * Returns a description of the token pattern with the
// * specified id.
// *
// * @param id the token pattern id
// *
// * @return the token pattern description, or
// * null if not present
//
public string GetPatternDescription(int id)
{
TokenPattern pattern = default(TokenPattern);
RegExpTokenMatcher re = default(RegExpTokenMatcher);
pattern = stringMatcher.GetPattern(id);
if (pattern != null)
{
return(pattern.ToShortString());
}
for (int i = 0; i <= regexpMatchers.Count - 1; i++)
{
re = (RegExpTokenMatcher)regexpMatchers[i];
if (re.GetPattern().Id == id)
{
return(re.GetPattern().ToShortString());
}
}
return(null);
}
//*
// * Finds the longest token match from the current buffer
// * position. This method will return the token matcher for the
// * best match, or null if no match was found. As a side
// * effect, this method will also set the end of buffer flag.
// *
// * @return the token mathcher with the longest match, or
// * null if no match was found
// *
// * @throws IOException if an I/O error occurred
//
private TokenMatcher FindMatch()
{
TokenMatcher bestMatch = null;
int bestLength = 0;
RegExpTokenMatcher re = default(RegExpTokenMatcher);
// Check string matches
if (stringMatcher.Match(input))
{
bestMatch = stringMatcher;
bestLength = bestMatch.GetMatchedLength();
}
for (int i = 0; i <= regexpMatchers.Count - 1; i++)
{
// Check regular expression matches
re = (RegExpTokenMatcher)regexpMatchers[i];
if (re.Match() && re.GetMatchedLength() > bestLength)
{
bestMatch = re;
bestLength = re.GetMatchedLength();
}
}
return(bestMatch);
}