tesseract/dict/hyphen.cpp

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/* -*-C-*-
********************************************************************************
*
* File: hyphen.c (Formerly hyphen.c)
* Description:
* Author: Mark Seaman, OCR Technology
* Created: Fri Oct 16 14:37:00 1987
* Modified: Thu Mar 14 11:09:43 1991 (Mark Seaman) marks@hpgrlt
* Language: C
* Package: N/A
* 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.
*
*********************************************************************************/
/*----------------------------------------------------------------------
I n c l u d e s
----------------------------------------------------------------------*/
#include "const.h"
#include "hyphen.h"
#include "tordvars.h"
#include "callcpp.h"
#include <math.h>
/*----------------------------------------------------------------------
V a r i a b l e s
----------------------------------------------------------------------*/
int last_word_on_line = 0;
char *hyphen_string = 0;
char *hyphen_unichar_lengths = 0;
int *hyphen_unichar_offsets = NULL;
float hyphen_rating = MAXFLOAT;
int hyphen_state = 0;
/*----------------------------------------------------------------------
F u n c t i o n s
---------------------------------------------------------------------*/
/**********************************************************************
* set_hyphen_word
*
* If this hyphenated word choice is better than the last one then add
* it as the new word choice. This string can be used on the next
* line to permute the other half of the word.
**********************************************************************/
void set_hyphen_word(char *word, char *unichar_lengths, int *unichar_offsets,
float rating, int state) {
int char_index = strlen (unichar_lengths) - 1;
if (display_ratings)
cprintf ("set hyphen word = %s\n", word);
if (hyphen_rating > rating && char_index > 0) {
word[unichar_offsets[char_index]] = '\0';
unichar_lengths[char_index] = 0;
if (hyphen_string)
{
strfree(hyphen_string);
strfree(hyphen_unichar_lengths);
Efree(hyphen_unichar_offsets);
}
hyphen_string = strsave (word);
hyphen_unichar_lengths = strsave (unichar_lengths);
hyphen_unichar_offsets = (int *)
Emalloc((strlen(unichar_lengths)) * sizeof (int));
memcpy(hyphen_unichar_offsets, unichar_offsets,
(strlen(unichar_lengths)) * sizeof (int));
hyphen_state = state;
hyphen_rating = rating;
word[unichar_offsets[char_index]] = '-';
unichar_lengths[char_index] = 1;
}
}