stem.cc

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/* Copyright (C) 2007-2026 Olly Betts
 * Copyright (C) 2010 Evgeny Sizikov
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see
 * <https://www.gnu.org/licenses/>.
 */
 
#include <config.h>
 
#include <xapian/stem.h>
 
#include <xapian/error.h>
 
#include "allsnowballheaders.h"
#include "keyword.h"
#include "sbl-dispatch.h"
 
#include <string>
#include <string_view>
 
using namespace std;
 
namespace Xapian {
 
Stem::Stem(std::string_view language, bool fallback)
{
    int l = keyword2(tab, language.data(), language.size());
    if (l >= 0) {
        switch (static_cast<sbl_code>(l)) {
            SNOWBALL_DISPATCH
        }
    }
    if (fallback || language.empty())
        return;
 
    string m{"Language code "};
    m += language;
    m += " unknown";
    throw Xapian::InvalidArgumentError(m);
}
 
string
Stem::get_description() const
{
    string desc = "Xapian::Stem(";
    if (internal) {
        desc += internal->get_description();
        desc += ')';
    } else {
        desc += "none)";
    }
    return desc;
}
 
bool
StemImplementation::use_proper_noun_heuristic() const
{
    return false;
}
 
StemImplementation::~StemImplementation() { }
 
}