mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-15 09:47:46 +08:00
98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
///////////////////////////////////////////////////////////////////////
|
|
// File: dawg2wordlist.cpp
|
|
// Description: Program to create a word list from a DAWG and unicharset.
|
|
// Author: David Eger
|
|
// Created: Thu 22 Dec 2011
|
|
//
|
|
// (C) Copyright 2011, Google Inc.
|
|
// 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 "dawg.h"
|
|
#include "host.h"
|
|
#include "serialis.h"
|
|
#include "tesscallback.h"
|
|
#include "trie.h"
|
|
#include "unicharset.h"
|
|
|
|
const int kDictDebugLevel = 1;
|
|
|
|
tesseract::Dawg *LoadSquishedDawg(const UNICHARSET &unicharset,
|
|
const char *filename) {
|
|
const int kDictDebugLevel = 1;
|
|
tesseract::TFile dawg_file;
|
|
if (!dawg_file.Open(filename, nullptr)) {
|
|
tprintf("Could not open %s for reading.\n", filename);
|
|
return nullptr;
|
|
}
|
|
tprintf("Loading word list from %s\n", filename);
|
|
tesseract::SquishedDawg *retval = new tesseract::SquishedDawg(
|
|
tesseract::DAWG_TYPE_WORD, "eng", SYSTEM_DAWG_PERM, kDictDebugLevel);
|
|
if (!retval->Load(&dawg_file)) {
|
|
tprintf("Could not read %s\n", filename);
|
|
delete retval;
|
|
return nullptr;
|
|
}
|
|
tprintf("Word list loaded.\n");
|
|
return retval;
|
|
}
|
|
|
|
class WordOutputter {
|
|
public:
|
|
WordOutputter(FILE *file) : file_(file) {}
|
|
void output_word(const char *word) { fprintf(file_, "%s\n", word); }
|
|
private:
|
|
FILE *file_;
|
|
};
|
|
|
|
// returns 0 if successful.
|
|
int WriteDawgAsWordlist(const UNICHARSET &unicharset,
|
|
const tesseract::Dawg *dawg,
|
|
const char *outfile_name) {
|
|
FILE *out = fopen(outfile_name, "wb");
|
|
if (out == nullptr) {
|
|
tprintf("Could not open %s for writing.\n", outfile_name);
|
|
return 1;
|
|
}
|
|
WordOutputter outputter(out);
|
|
TessCallback1<const char *> *print_word_cb =
|
|
NewPermanentTessCallback(&outputter, &WordOutputter::output_word);
|
|
dawg->iterate_words(unicharset, print_word_cb);
|
|
delete print_word_cb;
|
|
return fclose(out);
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
if (argc != 4) {
|
|
tprintf("Print all the words in a given dawg.\n");
|
|
tprintf("Usage: %s <unicharset> <dawgfile> <wordlistfile>\n",
|
|
argv[0]);
|
|
return 1;
|
|
}
|
|
const char *unicharset_file = argv[1];
|
|
const char *dawg_file = argv[2];
|
|
const char *wordlist_file = argv[3];
|
|
UNICHARSET unicharset;
|
|
if (!unicharset.load_from_file(unicharset_file)) {
|
|
tprintf("Error loading unicharset from %s.\n", unicharset_file);
|
|
return 1;
|
|
}
|
|
tesseract::Dawg *dict = LoadSquishedDawg(unicharset, dawg_file);
|
|
if (dict == nullptr) {
|
|
tprintf("Error loading dictionary from %s.\n", dawg_file);
|
|
return 1;
|
|
}
|
|
int retval = WriteDawgAsWordlist(unicharset, dict, wordlist_file);
|
|
delete dict;
|
|
return retval;
|
|
}
|