/**
* @name fix_fuzzy_spaces()
* Walk over the page finding sequences of words joined by fuzzy spaces. Extract
* them as a sublist, process the sublist to find the optimal arrangement of
* spaces then replace the sublist in the ROW_RES.
*
* @param monitor progress monitor
* @param word_count count of words in doc
* @param[out] page_res
*/
void Tesseract::fix_fuzzy_spaces(ETEXT_DESC *monitor,
inT32 word_count,
PAGE_RES *page_res) {
BLOCK_RES_IT block_res_it;
ROW_RES_IT row_res_it;
WERD_RES_IT word_res_it_from;
WERD_RES_IT word_res_it_to;
WERD_RES *word_res;
WERD_RES_LIST fuzzy_space_words;
inT16 new_length;
BOOL8 prevent_null_wd_fixsp; // DONT process blobless wds
inT32 word_index; // current word
block_res_it.set_to_list(&page_res->block_res_list);
word_index = 0;
for (block_res_it.mark_cycle_pt(); !block_res_it.cycled_list();
block_res_it.forward()) {
row_res_it.set_to_list(&block_res_it.data()->row_res_list);
for (row_res_it.mark_cycle_pt(); !row_res_it.cycled_list();
row_res_it.forward()) {
word_res_it_from.set_to_list(&row_res_it.data()->word_res_list);
while (!word_res_it_from.at_last()) {
word_res = word_res_it_from.data();
while (!word_res_it_from.at_last() &&
!(word_res->combination ||
word_res_it_from.data_relative(1)->word->flag(W_FUZZY_NON) ||
word_res_it_from.data_relative(1)->word->flag(W_FUZZY_SP))) {
fix_sp_fp_word(word_res_it_from, row_res_it.data()->row,
block_res_it.data()->block);
word_res = word_res_it_from.forward();
word_index++;
if (monitor != NULL) {
monitor->ocr_alive = TRUE;
monitor->progress = 90 + 5 * word_index / word_count;
if (monitor->deadline_exceeded() ||
(monitor->cancel != NULL &&
(*monitor->cancel)(monitor->cancel_this, stats_.dict_words)))
return;
}
}
if (!word_res_it_from.at_last()) {
word_res_it_to = word_res_it_from;
prevent_null_wd_fixsp =
word_res->word->cblob_list()->empty();
if (check_debug_pt(word_res, 60))
debug_fix_space_level.set_value(10);
word_res_it_to.forward();
word_index++;
if (monitor != NULL) {
monitor->ocr_alive = TRUE;
monitor->progress = 90 + 5 * word_index / word_count;
if (monitor->deadline_exceeded() ||
(monitor->cancel != NULL &&
(*monitor->cancel)(monitor->cancel_this, stats_.dict_words)))
return;
}
while (!word_res_it_to.at_last () &&
(word_res_it_to.data_relative(1)->word->flag(W_FUZZY_NON) ||
word_res_it_to.data_relative(1)->word->flag(W_FUZZY_SP))) {
if (check_debug_pt(word_res, 60))
debug_fix_space_level.set_value(10);
if (word_res->word->cblob_list()->empty())
prevent_null_wd_fixsp = TRUE;
word_res = word_res_it_to.forward();
}
if (check_debug_pt(word_res, 60))
debug_fix_space_level.set_value(10);
if (word_res->word->cblob_list()->empty())
prevent_null_wd_fixsp = TRUE;
if (prevent_null_wd_fixsp) {
word_res_it_from = word_res_it_to;
} else {
fuzzy_space_words.assign_to_sublist(&word_res_it_from,
&word_res_it_to);
fix_fuzzy_space_list(fuzzy_space_words,
row_res_it.data()->row,
block_res_it.data()->block);
new_length = fuzzy_space_words.length();
word_res_it_from.add_list_before(&fuzzy_space_words);
for (;
!word_res_it_from.at_last() && new_length > 0;
new_length--) {
word_res_it_from.forward();
}
}
if (test_pt)
debug_fix_space_level.set_value(0);
}
fix_sp_fp_word(word_res_it_from, row_res_it.data()->row,
block_res_it.data()->block);
// Last word in row
}
}
}
}
void fix_fuzzy_spaces( //find fuzzy words
volatile ETEXT_DESC *monitor, //progress monitor
inT32 word_count, //count of words in doc
PAGE_RES *page_res) {
BLOCK_RES_IT block_res_it; //iterators
ROW_RES_IT row_res_it;
WERD_RES_IT word_res_it_from;
WERD_RES_IT word_res_it_to;
WERD_RES *word_res;
WERD_RES_LIST fuzzy_space_words;
inT16 new_length;
BOOL8 prevent_null_wd_fixsp; //DONT process blobless wds
inT32 word_index; //current word
block_res_it.set_to_list (&page_res->block_res_list);
word_index = 0;
for (block_res_it.mark_cycle_pt ();
!block_res_it.cycled_list (); block_res_it.forward ()) {
row_res_it.set_to_list (&block_res_it.data ()->row_res_list);
for (row_res_it.mark_cycle_pt ();
!row_res_it.cycled_list (); row_res_it.forward ()) {
word_res_it_from.set_to_list (&row_res_it.data ()->word_res_list);
while (!word_res_it_from.at_last ()) {
word_res = word_res_it_from.data ();
while (!word_res_it_from.at_last () &&
!(word_res->combination ||
word_res_it_from.data_relative (1)->
word->flag (W_FUZZY_NON) ||
word_res_it_from.data_relative (1)->
word->flag (W_FUZZY_SP))) {
fix_sp_fp_word (word_res_it_from, row_res_it.data ()->row);
word_res = word_res_it_from.forward ();
word_index++;
if (monitor != NULL) {
monitor->ocr_alive = TRUE;
monitor->progress = 90 + 5 * word_index / word_count;
}
}
if (!word_res_it_from.at_last ()) {
word_res_it_to = word_res_it_from;
prevent_null_wd_fixsp =
word_res->word->gblob_list ()->empty ();
if (check_debug_pt (word_res, 60))
debug_fix_space_level.set_value (10);
word_res_it_to.forward ();
word_index++;
if (monitor != NULL) {
monitor->ocr_alive = TRUE;
monitor->progress = 90 + 5 * word_index / word_count;
}
while (!word_res_it_to.at_last () &&
(word_res_it_to.data_relative (1)->
word->flag (W_FUZZY_NON) ||
word_res_it_to.data_relative (1)->
word->flag (W_FUZZY_SP))) {
if (check_debug_pt (word_res, 60))
debug_fix_space_level.set_value (10);
if (word_res->word->gblob_list ()->empty ())
prevent_null_wd_fixsp = TRUE;
word_res = word_res_it_to.forward ();
}
if (check_debug_pt (word_res, 60))
debug_fix_space_level.set_value (10);
if (word_res->word->gblob_list ()->empty ())
prevent_null_wd_fixsp = TRUE;
if (prevent_null_wd_fixsp)
word_res_it_from = word_res_it_to;
else {
fuzzy_space_words.assign_to_sublist (&word_res_it_from,
&word_res_it_to);
fix_fuzzy_space_list (fuzzy_space_words,
row_res_it.data ()->row);
new_length = fuzzy_space_words.length ();
word_res_it_from.add_list_before (&fuzzy_space_words);
for (;
(!word_res_it_from.at_last () &&
(new_length > 0)); new_length--) {
word_res_it_from.forward ();
}
}
if (test_pt)
debug_fix_space_level.set_value (0);
}
fix_sp_fp_word (word_res_it_from, row_res_it.data ()->row);
//Last word in row
}
}
}
}
