/// <summary>Remove attached pronouns from a strippable Spanish verb form.</summary>
/// <remarks>
/// Remove attached pronouns from a strippable Spanish verb form. (Use
/// <see cref="IsStrippable(string)"/>
/// to determine if a word is a
/// strippable verb.)
/// Converts, e.g.,
/// <ul>
/// <li> decírmelo -> decir
/// <li> mudarse -> mudar
/// <li> contándolos -> contando
/// <li> hazlo -> haz
/// </ul>
/// </remarks>
/// <returns>
/// A verb form stripped of attached pronouns, or <tt>null</tt>
/// if no pronouns were located / stripped.
/// </returns>
public string StripVerb(string verb)
{
SpanishVerbStripper.StrippedVerb separated = SeparatePronouns(verb);
if (separated != null)
{
return(separated.GetStem());
}
return(null);
}
/// <summary>Validate and normalize the given verb stripper result.</summary>
/// <remarks>
/// Validate and normalize the given verb stripper result.
/// Returns <tt>true</tt> if the given data is a valid pairing of verb form
/// and clitic pronoun(s).
/// May modify <tt>pair</tt> in place in order to make the pair valid.
/// For example, if the pair <tt>(senta, os)</tt> is provided, this
/// method will return <tt>true</tt> and modify the pair to be
/// <tt>(sentad, os)</tt>.
/// </remarks>
private bool NormalizeStrippedVerb(SpanishVerbStripper.StrippedVerb verb)
{
string normalized = RemoveAccents(verb.GetOriginalStem());
string firstPron = verb.GetPronouns()[0].ToLower();
// Look up verb in dictionary.
string verbKey = normalized.ToLower();
string pos = dict[verbKey];
bool valid = false;
// System.out.println(verbKey + " " + dict.containsKey(verbKey + 's'));
// Validate resulting split verb and normalize the new form at the same
// time.
if (pos != null)
{
// Check not invalid combination of verb root and pronoun.
// (If we combine a second-person plural imperative and the
// second person plural object pronoun, we expect to see an
// elided verb root, not the normal one that's in the
// dictionary.)
valid = !(pos.Equals("VMM02P0") && Sharpen.Runtime.EqualsIgnoreCase(firstPron, "os"));
}
else
{
if (Sharpen.Runtime.EqualsIgnoreCase(firstPron, "os") && dict.Contains(verbKey + 'd'))
{
// Special case: de-elide elided verb root in the case of a second
// person plural imperative + second person object pronoun
//
// (e.g., given (senta, os), return (sentad, os))
normalized = normalized + GetCase(normalized, 'd');
valid = true;
}
else
{
if (nosse.Matcher(firstPron).Matches() && dict.Contains(verbKey + 's'))
{
// Special case: de-elide elided verb root in the case of a first
// person plural imperative + object pronoun
//
// (vámo, nos) -> (vámos, nos)
normalized = normalized + GetCase(normalized, 's');
valid = true;
}
}
}
if (valid)
{
// Update normalized form.
verb.SetStem(normalized);
return(true);
}
return(false);
}