annotate mupdf-source/thirdparty/tesseract/src/training/dawg2wordlist.cpp @ 40:aa33339d6b8a upstream

ADD: MuPDF v1.26.10: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.5.
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 11:31:38 +0200
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1 ///////////////////////////////////////////////////////////////////////
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2 // File: dawg2wordlist.cpp
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3 // Description: Program to create a word list from a DAWG and unicharset.
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4 // Author: David Eger
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5 //
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6 // (C) Copyright 2011, Google Inc.
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7 // Licensed under the Apache License, Version 2.0 (the "License");
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8 // you may not use this file except in compliance with the License.
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9 // You may obtain a copy of the License at
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10 // http://www.apache.org/licenses/LICENSE-2.0
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11 // Unless required by applicable law or agreed to in writing, software
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12 // distributed under the License is distributed on an "AS IS" BASIS,
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13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 // See the License for the specific language governing permissions and
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15 // limitations under the License.
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16 //
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17 ///////////////////////////////////////////////////////////////////////
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18
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19 #include "commontraining.h" // CheckSharedLibraryVersion
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20 #include "dawg.h"
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21 #include "trie.h"
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22 #include "unicharset.h"
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23
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24 #include "serialis.h"
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26 using namespace tesseract;
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28 static std::unique_ptr<tesseract::Dawg> LoadSquishedDawg(const UNICHARSET &unicharset, const char *filename) {
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29 const int kDictDebugLevel = 1;
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30 tesseract::TFile dawg_file;
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31 if (!dawg_file.Open(filename, nullptr)) {
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32 tprintf("Could not open %s for reading.\n", filename);
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33 return nullptr;
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34 }
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35 tprintf("Loading word list from %s\n", filename);
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36 auto retval = std::make_unique<tesseract::SquishedDawg>(tesseract::DAWG_TYPE_WORD, "eng",
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37 SYSTEM_DAWG_PERM, kDictDebugLevel);
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38 if (!retval->Load(&dawg_file)) {
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39 tprintf("Could not read %s\n", filename);
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40 return nullptr;
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41 }
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42 tprintf("Word list loaded.\n");
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43 return retval;
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44 }
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45
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46 class WordOutputter {
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47 public:
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48 WordOutputter(FILE *file) : file_(file) {}
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49 void output_word(const char *word) {
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50 fprintf(file_, "%s\n", word);
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51 }
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52
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53 private:
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54 FILE *file_;
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55 };
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56
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57 // returns 0 if successful.
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58 static int WriteDawgAsWordlist(const UNICHARSET &unicharset, const tesseract::Dawg *dawg,
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59 const char *outfile_name) {
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60 FILE *out = fopen(outfile_name, "wb");
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61 if (out == nullptr) {
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62 tprintf("Could not open %s for writing.\n", outfile_name);
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63 return EXIT_FAILURE;
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64 }
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65 WordOutputter outputter(out);
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66 using namespace std::placeholders; // for _1
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67 dawg->iterate_words(unicharset, std::bind(&WordOutputter::output_word, &outputter, _1));
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68 return fclose(out);
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69 }
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70
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71 int main(int argc, char *argv[]) {
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72 tesseract::CheckSharedLibraryVersion();
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73
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74 if (argc > 1 && (!strcmp(argv[1], "-v") || !strcmp(argv[1], "--version"))) {
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75 printf("%s\n", tesseract::TessBaseAPI::Version());
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76 return 0;
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77 } else if (argc != 4) {
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78 tprintf("Print all the words in a given dawg.\n");
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79 tprintf(
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80 "Usage: %s -v | --version | %s <unicharset> <dawgfile> "
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81 "<wordlistfile>\n",
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82 argv[0], argv[0]);
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83 return EXIT_FAILURE;
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84 }
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85 const char *unicharset_file = argv[1];
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86 const char *dawg_file = argv[2];
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87 const char *wordlist_file = argv[3];
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88 UNICHARSET unicharset;
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89 if (!unicharset.load_from_file(unicharset_file)) {
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90 tprintf("Error loading unicharset from %s.\n", unicharset_file);
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91 return EXIT_FAILURE;
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92 }
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93 auto dict = LoadSquishedDawg(unicharset, dawg_file);
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94 if (dict == nullptr) {
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95 tprintf("Error loading dictionary from %s.\n", dawg_file);
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96 return EXIT_FAILURE;
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97 }
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98 int retval = WriteDawgAsWordlist(unicharset, dict.get(), wordlist_file);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
99 return retval;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
100 }