bool UNICHARSET::load_via_fgets(
TessResultCallback2<char *, char *, int> *fgets_cb,
bool skip_fragments) {
int unicharset_size;
char buffer[256];
this->clear();
if (fgets_cb->Run(buffer, sizeof(buffer)) == NULL ||
sscanf(buffer, "%d", &unicharset_size) != 1) {
return false;
}
this->reserve(unicharset_size);
for (UNICHAR_ID id = 0; id < unicharset_size; ++id) {
char unichar[256];
unsigned int properties;
char script[64];
strcpy(script, null_script);
int min_bottom = 0;
int max_bottom = MAX_UINT8;
int min_top = 0;
int max_top = MAX_UINT8;
int min_width = 0;
int max_width = MAX_INT16;
int min_bearing = 0;
int max_bearing = MAX_INT16;
int min_advance = 0;
int max_advance = MAX_INT16;
// TODO(eger): check that this default it ok
// after enabling BiDi iterator for Arabic+Cube.
int direction = UNICHARSET::U_LEFT_TO_RIGHT;
UNICHAR_ID other_case = id;
UNICHAR_ID mirror = id;
char normed[64];
int v = -1;
if (fgets_cb->Run(buffer, sizeof (buffer)) == NULL ||
((v = sscanf(buffer,
"%s %x %d,%d,%d,%d,%d,%d,%d,%d,%d,%d %63s %d %d %d %63s",
unichar, &properties,
&min_bottom, &max_bottom, &min_top, &max_top,
&min_width, &max_width, &min_bearing, &max_bearing,
&min_advance, &max_advance, script, &other_case,
&direction, &mirror, normed)) != 17 &&
(v = sscanf(buffer,
"%s %x %d,%d,%d,%d,%d,%d,%d,%d,%d,%d %63s %d %d %d",
unichar, &properties,
&min_bottom, &max_bottom, &min_top, &max_top,
&min_width, &max_width, &min_bearing, &max_bearing,
&min_advance, &max_advance,
script, &other_case, &direction, &mirror)) != 16 &&
(v = sscanf(buffer, "%s %x %d,%d,%d,%d %63s %d %d %d",
unichar, &properties,
&min_bottom, &max_bottom, &min_top, &max_top,
script, &other_case, &direction, &mirror)) != 10 &&
(v = sscanf(buffer, "%s %x %d,%d,%d,%d %63s %d", unichar, &properties,
&min_bottom, &max_bottom, &min_top, &max_top,
script, &other_case)) != 8 &&
(v = sscanf(buffer, "%s %x %63s %d", unichar, &properties,
script, &other_case)) != 4 &&
(v = sscanf(buffer, "%s %x %63s",
unichar, &properties, script)) != 3 &&
(v = sscanf(buffer, "%s %x", unichar, &properties)) != 2)) {
return false;
}
// Skip fragments if needed.
CHAR_FRAGMENT *frag = NULL;
if (skip_fragments && (frag = CHAR_FRAGMENT::parse_from_string(unichar))) {
int num_pieces = frag->get_total();
delete frag;
// Skip multi-element fragments, but keep singles like UNICHAR_BROKEN in.
if (num_pieces > 1)
continue;
}
// Insert unichar into unicharset and set its properties.
if (strcmp(unichar, "NULL") == 0)
this->unichar_insert(" ");
else
this->unichar_insert(unichar);
this->set_isalpha(id, properties & ISALPHA_MASK);
this->set_islower(id, properties & ISLOWER_MASK);
this->set_isupper(id, properties & ISUPPER_MASK);
this->set_isdigit(id, properties & ISDIGIT_MASK);
this->set_ispunctuation(id, properties & ISPUNCTUATION_MASK);
this->set_isngram(id, false);
this->set_script(id, script);
this->unichars[id].properties.enabled = true;
this->set_top_bottom(id, min_bottom, max_bottom, min_top, max_top);
this->set_width_range(id, min_width, max_width);
this->set_bearing_range(id, min_bearing, max_bearing);
this->set_advance_range(id, min_advance, max_advance);
this->set_direction(id, static_cast<UNICHARSET::Direction>(direction));
ASSERT_HOST(other_case < unicharset_size);
this->set_other_case(id, (v>3) ? other_case : id);
ASSERT_HOST(mirror < unicharset_size);
this->set_mirror(id, (v>8) ? mirror : id);
this->set_normed(id, (v>16) ? normed : unichar);
}
post_load_setup();
return true;
}
