string morphword(string word)
{
string end = "";
string tmpbuf = "";
if (word == null)
{
return(null);
}
Exceptions e = new Exceptions(word, pos);
string tmp = e.next();
if (tmp != null)
{
return(tmp);
}
if (pos.name == "adverb")
{
return(null);
}
if (pos.name == "noun")
{
if (word.EndsWith("ful"))
{
tmpbuf = word.Substring(0, word.Length - 3);
end = "ful";
}
else if (word.EndsWith("ss") || word.Length <= 2)
{
return(null);
}
}
if (tmpbuf.Length == 0)
{
tmpbuf = word;
}
int offset = offsets[pos.ident];
int cnt = cnts[pos.ident];
for (int i = 0; i < cnt; i++)
{
if (tmpbuf.EndsWith(sufx[i + offset]))
{
// TDMS 11 Oct 2005 - bug fix - "word" substituted with "tmpbuf" as per
// wordnet code morph.c
//string retval = word.Substring(0,word.Length-sufx[i+offset].Length)+addr[i+offset];
string retval = tmpbuf.Substring(0, tmpbuf.Length - sufx[i + offset].Length) + addr[i + offset];
if (WNDB.is_defined(retval, pos).NonEmpty)
{
return(retval + end);
}
}
}
return(null);
}
public string next()
{
string word, tmp;
int prep, cnt, st_idx = 0, end_idx = 0, end_idx1, end_idx2;
string append = "";
/* first time through for this string */
if (firsttime)
{
firsttime = false;
cnt = str.Split('_').Length;
svprep = 0;
/* first try exception list */
e = new Exceptions(str, pos);
if ((tmp = e.next()) != null && tmp != str)
{
svcnt = 1; /* force next time to pass NULL */
return(tmp);
}
/* then try simply morph on original string */
if (pos.name != "verb" && ((tmp = morphword(str)) != null) && str != tmp)
{
return(tmp);
}
if (pos.name == "verb" && cnt > 1 && (prep = hasprep(str, cnt)) != 0)
{
svprep = prep;
return(morphprep(str));
}
else
{
svcnt = cnt = str.Split('_').Length;
while (--cnt > 0)
{
end_idx1 = str.Substring(st_idx).IndexOf('_') + st_idx;
end_idx2 = str.Substring(st_idx).IndexOf('-') + st_idx;
if (end_idx1 >= st_idx && end_idx2 >= st_idx)
{
if (end_idx1 < end_idx2)
{
end_idx = end_idx1;
append = "_";
}
else
{
end_idx = end_idx2;
append = "-";
}
}
else if (end_idx1 >= st_idx)
{
end_idx = end_idx1;
append = "_";
}
else
{
end_idx = end_idx2;
append = "-";
}
if (end_idx < 0)
{
return(null);
}
word = str.Substring(st_idx, end_idx - st_idx);
if ((tmp = morphword(word)) != null)
{
searchstr += tmp;
}
else
{
searchstr += word;
}
searchstr += append;
st_idx = end_idx + 1;
}
word = str.Substring(st_idx);
if ((tmp = morphword(word)) != null)
{
searchstr += tmp;
}
else
{
searchstr += word;
}
if (searchstr != str && WNDB.is_defined(searchstr, pos).NonEmpty)
{
return(searchstr);
}
else
{
return(null);
}
}
}
else // not firsttime
{
if (svprep > 0)
{
svprep = 0;
return(null);
}
else if (svcnt == 1)
{
return(e.next());
}
else
{
svcnt = 1;
e = new Exceptions(str, pos);
if ((tmp = e.next()) != null && tmp != str)
{
return(tmp);
}
return(null);
}
}
}
string morphprep(string s)
{
string excWord, lastwd = null;
int i, offset, cnt, rest, last;
string word, end, retval;
/* Assume that the verb is the first word in the phrase. Strip it
* off, check for validity, then try various morphs with the
* rest of the phrase tacked on, trying to find a match. */
rest = s.IndexOf('_');
last = s.LastIndexOf('_');
end = "";
if (rest != last)
{ // more than 2 words
lastwd = morphword(s.Substring(last + 1));
if (lastwd != null)
{
end = s.Substring(rest, last - rest + 1) + lastwd;
}
}
word = s.Substring(0, rest);
for (i = 0; i < word.Length; i++)
{
if (!char.IsLetterOrDigit(word[i]))
{
return(null);
}
}
offset = offsets[PartOfSpeech.of("verb").ident];
cnt = cnts[PartOfSpeech.of("verb").ident];
/* First try to find the verb in the exception list */
Exceptions e = new Exceptions(word, PartOfSpeech.of("verb"));
while ((excWord = e.next()) != null && excWord != word)
{
retval = excWord + s.Substring(rest);
if (WNDB.is_defined(retval, PartOfSpeech.of("verb")).NonEmpty)
{
return(retval);
}
else if (lastwd != null)
{
retval = excWord + end;
if (WNDB.is_defined(retval, PartOfSpeech.of("verb")).NonEmpty)
{
return(retval);
}
}
}
for (i = 0; i < cnt; i++)
{
if ((excWord = wordbase(word, i + offset)) != null && excWord != word) // ending is different
{
retval = excWord + s.Substring(rest);
if (WNDB.is_defined(retval, PartOfSpeech.of("verb")).NonEmpty)
{
return(retval);
}
else if (lastwd != null)
{
retval = excWord + end;
if (WNDB.is_defined(retval, PartOfSpeech.of("verb")).NonEmpty)
{
return(retval);
}
}
}
}
retval = word + s.Substring(rest);
if (s != retval)
{
return(retval);
}
if (lastwd != null)
{
retval = word + end;
if (s != retval)
{
return(retval);
}
}
return(null);
}