/******************************************************************************

 * File:         hyphen.cpp  (Formerly hyphen.c)

 * Description:  Functions for maintaining information about hyphenated words.

 * Author:       Mark Seaman, OCR Technology

 * Status:       Reusable Software Component

 *

 * (c) Copyright 1987, Hewlett-Packard Company.

 ** Licensed under the Apache License, Version 2.0 (the "License");

 ** you may not use this file except in compliance with the License.

 ** You may obtain a copy of the License at

 ** http://www.apache.org/licenses/LICENSE-2.0

 ** Unless required by applicable law or agreed to in writing, software

 ** distributed under the License is distributed on an "AS IS" BASIS,

 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 ** See the License for the specific language governing permissions and

 ** limitations under the License.

 *

 *****************************************************************************/

#include "dict.h"

namespace tesseract {

// Unless the previous word was the last one on the line, and the current

// one is not (thus it is the first one on the line), erase hyphen_word_,

// clear hyphen_active_dawgs_, hyphen_constraints_ update last_word_on_line_.

void Dict::reset_hyphen_vars(bool last_word_on_line) {

  if (!(last_word_on_line_ == true && last_word_on_line == false)) {

    if (hyphen_word_ != nullptr) {

      delete hyphen_word_;

      hyphen_word_ = nullptr;

      hyphen_active_dawgs_.clear();

    }

  }

  if (hyphen_debug_level) {

    tprintf("reset_hyphen_vars: last_word_on_line %d -> %d\n", last_word_on_line_,

            last_word_on_line);

  }

  last_word_on_line_ = last_word_on_line;

}

// Update hyphen_word_, and copy the given DawgPositionVectors into

// hyphen_active_dawgs_.

void Dict::set_hyphen_word(const WERD_CHOICE &word, const DawgPositionVector &active_dawgs) {

  if (hyphen_word_ == nullptr) {

    hyphen_word_ = new WERD_CHOICE(word.unicharset());

    hyphen_word_->make_bad();

  }

  if (hyphen_word_->rating() > word.rating()) {

    *hyphen_word_ = word;

    // Remove the last unichar id as it is a hyphen, and remove

    // any unichar_string/lengths that are present.

    hyphen_word_->remove_last_unichar_id();

    hyphen_active_dawgs_ = active_dawgs;

  }

  if (hyphen_debug_level) {

    hyphen_word_->print("set_hyphen_word: ");

  }

}

} // namespace tesseract