private string PublicSingularize(string word)
{
// words that we know of
if (_userDictionary.ExistsInSecond(word))
{
return(_userDictionary.GetFirstValue(word));
}
if (IsNoOpWord(word))
{
return(word);
}
string prefixWord;
string suffixWord = GetSuffixWord(word, out prefixWord);
if (IsNoOpWord(suffixWord))
{
return(prefixWord + suffixWord);
}
// handle the word that is the same as the plural form
if (IsUninflective(suffixWord))
{
return(prefixWord + suffixWord);
}
// if word is one of the known singular words, then just return
if (_knownSingluarWords.Contains(suffixWord.ToLowerInvariant()))
{
return(prefixWord + suffixWord);
}
// handle simple irregular verbs, e.g. was -> were
if (_irregularVerbPluralizationService.ExistsInSecond(suffixWord))
{
return(prefixWord + _irregularVerbPluralizationService.GetFirstValue(suffixWord));
}
// handle irregular plurals, e.g. "ox" -> "oxen"
if (_irregularPluralsPluralizationService.ExistsInSecond(suffixWord))
{
return(prefixWord + _irregularPluralsPluralizationService.GetFirstValue(suffixWord));
}
// handle singluarization for words ending with sis and pluralized to ses,
// e.g. "ses" -> "sis"
if (_wordsEndingWithSisPluralizationService.ExistsInSecond(suffixWord))
{
return(prefixWord + _wordsEndingWithSisPluralizationService.GetFirstValue(suffixWord));
}
// handle words ending with se, e.g. "ses" -> "se"
if (_wordsEndingWithSePluralizationService.ExistsInSecond(suffixWord))
{
return(prefixWord + _wordsEndingWithSePluralizationService.GetFirstValue(suffixWord));
}
// handle words ending with sus, e.g. "suses" -> "sus"
if (_wordsEndingWithSusPluralizationService.ExistsInSecond(suffixWord))
{
return(prefixWord + _wordsEndingWithSusPluralizationService.GetFirstValue(suffixWord));
}
string newSuffixWord;
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"men"
},
s => s.Remove(s.Length - 2, 2) + "an", Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
// handle irregular inflections for common suffixes, e.g. "mouse" -> "mice"
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"lice", "mice"
},
s => s.Remove(s.Length - 3, 3) + "ouse", Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"teeth"
},
s => s.Remove(s.Length - 4, 4) + "ooth", Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"geese"
},
s => s.Remove(s.Length - 4, 4) + "oose", Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"feet"
},
s => s.Remove(s.Length - 3, 3) + "oot", Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"zoa"
},
s => s.Remove(s.Length - 2, 2) + "oon", Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
// [cs]h and ss that take es as plural form, this is being moved up since the sses will be override by the ses
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"ches", "shes", "sses"
},
s => s.Remove(s.Length - 2, 2), Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
// handle assimilated classical inflections, e.g. vertebra -> vertebrae
if (_assimilatedClassicalInflectionPluralizationService.ExistsInSecond(suffixWord))
{
return(prefixWord + _assimilatedClassicalInflectionPluralizationService.GetFirstValue(suffixWord));
}
// Handle the classical variants of modern inflections
//
if (_classicalInflectionPluralizationService.ExistsInSecond(suffixWord))
{
return(prefixWord + _classicalInflectionPluralizationService.GetFirstValue(suffixWord));
}
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"trices"
},
s => s.Remove(s.Length - 3, 3) + "x", Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"eaux", "ieux"
},
s => s.Remove(s.Length - 1, 1), Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
if (_wordsEndingWithInxAnxYnxPluralizationService.ExistsInSecond(suffixWord))
{
return(prefixWord + _wordsEndingWithInxAnxYnxPluralizationService.GetFirstValue(suffixWord));
}
// f, fe that take ves as plural form
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"alves", "elves", "olves", "eaves", "arves"
},
s => s.Remove(s.Length - 3, 3) + "f", Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"nives", "lives", "wives"
},
s => s.Remove(s.Length - 3, 3) + "fe", Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
// y takes ys as plural form if preceded by a vowel, but ies if preceded by a consonant, e.g. stays, skies
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"ays", "eys", "iys", "oys", "uys"
},
s => s.Remove(s.Length - 1, 1), Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
//
if (suffixWord.EndsWith("ies", true, Culture))
{
return(prefixWord + suffixWord.Remove(suffixWord.Length - 3, 3) + "y");
}
// handle some of the words o -> os, and [vowel]o -> os, and the rest are o->oes
if (_oSuffixPluralizationService.ExistsInSecond(suffixWord))
{
return(prefixWord + _oSuffixPluralizationService.GetFirstValue(suffixWord));
}
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"aos", "eos", "ios", "oos", "uos"
},
s => suffixWord.Remove(suffixWord.Length - 1, 1), Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
//
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"ces"
},
s => s.Remove(s.Length - 1, 1), Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
if (TryInflectOnSuffixInWord(suffixWord,
new List <string> {
"ces", "ses", "xes"
},
s => s.Remove(s.Length - 2, 2), Culture, out newSuffixWord))
{
return(prefixWord + newSuffixWord);
}
if (suffixWord.EndsWith("oes", true, Culture))
{
return(prefixWord + suffixWord.Remove(suffixWord.Length - 2, 2));
}
if (suffixWord.EndsWith("ss", true, Culture))
{
return(prefixWord + suffixWord);
}
if (suffixWord.EndsWith("s", true, Culture))
{
return(prefixWord + suffixWord.Remove(suffixWord.Length - 1, 1));
}
// word is a singlar
return(prefixWord + suffixWord);
}