Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/training/unicharset/lang_model_helpers.cpp @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1 // Copyright 2017 Google Inc. All Rights Reserved.
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2 // Author: rays@google.com (Ray Smith)
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3 // Purpose: Collection of convenience functions to simplify creation of the
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4 // unicharset, recoder, and dawgs for an LSTM model.
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5
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6 // Licensed under the Apache License, Version 2.0 (the "License");
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7 // you may not use this file except in compliance with the License.
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8 // You may obtain a copy of the License at
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9 // http://www.apache.org/licenses/LICENSE-2.0
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10 // Unless required by applicable law or agreed to in writing, software
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11 // distributed under the License is distributed on an "AS IS" BASIS,
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12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 // See the License for the specific language governing permissions and
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14 // limitations under the License.
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16 #include "lang_model_helpers.h"
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18 #include "dawg.h"
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19 #include "fileio.h"
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20 #include "tessdatamanager.h"
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21 #include "trie.h"
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22 #include "unicharcompress.h"
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24 #include <cstdlib>
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26 #include <sys/stat.h>
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27 #include <sys/types.h>
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29 #if defined(_WIN32)
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30 # include <direct.h>
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31 #endif
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33 namespace tesseract {
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34
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35 // Helper makes a filename (<output_dir>/<lang>/<lang><suffix>) and writes data
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36 // to the file, using writer if not null, otherwise, a default writer.
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37 // Default writer will overwrite any existing file, but a supplied writer
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38 // can do its own thing. If lang is empty, returns true but does nothing.
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39 // NOTE that suffix should contain any required . for the filename.
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40 bool WriteFile(const std::string &output_dir, const std::string &lang, const std::string &suffix,
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41 const std::vector<char> &data, FileWriter writer) {
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42 if (lang.empty()) {
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43 return true;
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44 }
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45 std::string dirname = output_dir + "/" + lang;
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46 // Attempt to make the directory, but ignore errors, as it may not be a
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47 // standard filesystem, and the writer will complain if not successful.
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48 #if defined(_WIN32)
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49 _mkdir(dirname.c_str());
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50 #else
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51 mkdir(dirname.c_str(), S_IRWXU | S_IRWXG);
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52 #endif
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53 std::string filename = dirname + "/" + lang + suffix;
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54 if (writer == nullptr) {
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55 return SaveDataToFile(data, filename.c_str());
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56 } else {
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57 return (*writer)(data, filename.c_str());
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58 }
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59 }
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60
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61 // Helper reads a file with optional reader and returns a string.
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62 // On failure emits a warning message and returns an empty string.
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63 std::string ReadFile(const std::string &filename, FileReader reader) {
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64 if (filename.empty()) {
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65 return std::string();
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66 }
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67 std::vector<char> data;
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68 bool read_result;
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69 if (reader == nullptr) {
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70 read_result = LoadDataFromFile(filename.c_str(), &data);
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71 } else {
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72 read_result = (*reader)(filename.c_str(), &data);
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73 }
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74 if (read_result) {
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75 return std::string(&data[0], data.size());
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76 }
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77 tprintf("Failed to read data from: %s\n", filename.c_str());
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78 return std::string();
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79 }
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80
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81 // Helper writes the unicharset to file and to the traineddata.
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82 bool WriteUnicharset(const UNICHARSET &unicharset, const std::string &output_dir,
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83 const std::string &lang, FileWriter writer, TessdataManager *traineddata) {
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84 std::vector<char> unicharset_data;
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85 TFile fp;
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86 fp.OpenWrite(&unicharset_data);
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87 if (!unicharset.save_to_file(&fp)) {
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88 return false;
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89 }
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90 traineddata->OverwriteEntry(TESSDATA_LSTM_UNICHARSET, &unicharset_data[0],
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91 unicharset_data.size());
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92 return WriteFile(output_dir, lang, ".unicharset", unicharset_data, writer);
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93 }
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94
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95 // Helper creates the recoder and writes it to the traineddata, and a human-
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96 // readable form to file.
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97 bool WriteRecoder(const UNICHARSET &unicharset, bool pass_through, const std::string &output_dir,
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parents:
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98 const std::string &lang, FileWriter writer, std::string *radical_table_data,
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
99 TessdataManager *traineddata) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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100 UnicharCompress recoder;
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parents:
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101 // Where the unicharset is carefully setup already to contain a good
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parents:
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102 // compact encoding, use a pass-through recoder that does nothing.
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parents:
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103 // For scripts that have a large number of unicodes (Han, Hangul) we want
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parents:
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104 // to use the recoder to compress the symbol space by re-encoding each
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parents:
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105 // unicode as multiple codes from a smaller 'alphabet' that are related to the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
106 // shapes in the character. Hangul Jamo is a perfect example of this.
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parents:
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107 // See the Hangul Syllables section, sub-section "Equivalence" in:
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parents:
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108 // http://www.unicode.org/versions/Unicode10.0.0/ch18.pdf
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parents:
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109 if (pass_through) {
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:
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110 recoder.SetupPassThrough(unicharset);
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
111 } else {
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:
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112 int null_char = unicharset.has_special_codes() ? UNICHAR_BROKEN : unicharset.size();
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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113 tprintf("Null char=%d\n", null_char);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
114 if (!recoder.ComputeEncoding(unicharset, null_char, radical_table_data)) {
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:
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115 tprintf("Creation of encoded unicharset failed!!\n");
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:
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116 return false;
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parents:
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117 }
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parents:
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118 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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119 TFile fp;
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:
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120 std::vector<char> recoder_data;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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121 fp.OpenWrite(&recoder_data);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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122 if (!recoder.Serialize(&fp)) {
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:
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123 return false;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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124 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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125 traineddata->OverwriteEntry(TESSDATA_LSTM_RECODER, &recoder_data[0], recoder_data.size());
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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126 std::string encoding = recoder.GetEncodingAsString(unicharset);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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127 recoder_data.resize(encoding.length(), 0);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
128 memcpy(&recoder_data[0], &encoding[0], encoding.length());
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:
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129 std::string suffix;
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:
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130 suffix += ".charset_size=" + std::to_string(recoder.code_range());
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>
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131 suffix += ".txt";
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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132 return WriteFile(output_dir, lang, suffix, recoder_data, writer);
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133 }
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parents:
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134
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parents:
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135 // Helper builds a dawg from the given words, using the unicharset as coding,
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:
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136 // and reverse_policy for LTR/RTL, and overwrites file_type in the traineddata.
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
137 static bool WriteDawg(const std::vector<std::string> &words, const UNICHARSET &unicharset,
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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138 Trie::RTLReversePolicy reverse_policy, TessdataType file_type,
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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139 TessdataManager *traineddata) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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140 // The first 3 arguments are not used in this case.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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141 Trie trie(DAWG_TYPE_WORD, "", SYSTEM_DAWG_PERM, unicharset.size(), 0);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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142 trie.add_word_list(words, unicharset, reverse_policy);
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
143 tprintf("Reducing Trie to SquishedDawg\n");
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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144 std::unique_ptr<SquishedDawg> dawg(trie.trie_to_dawg());
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
145 if (dawg == nullptr || dawg->NumEdges() == 0) {
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
146 return false;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
147 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
148 TFile fp;
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
149 std::vector<char> dawg_data;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
150 fp.OpenWrite(&dawg_data);
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
151 if (!dawg->write_squished_dawg(&fp)) {
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
152 return false;
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
153 }
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
154 traineddata->OverwriteEntry(file_type, &dawg_data[0], dawg_data.size());
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
155 return true;
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
156 }
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
157
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
158 // Builds and writes the dawgs, given a set of words, punctuation
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
159 // patterns, number patterns, to the traineddata. Encoding uses the given
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
160 // unicharset, and the punc dawgs is reversed if lang_is_rtl.
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
161 static bool WriteDawgs(const std::vector<std::string> &words, const std::vector<std::string> &puncs,
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
162 const std::vector<std::string> &numbers, bool lang_is_rtl,
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
163 const UNICHARSET &unicharset, TessdataManager *traineddata) {
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
164 if (puncs.empty()) {
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
165 tprintf("Must have non-empty puncs list to use language models!!\n");
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
166 return false;
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
167 }
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
168 // For each of the dawg types, make the dawg, and write to traineddata.
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
169 // Dawgs are reversed as follows:
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
170 // Words: According to the word content.
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
171 // Puncs: According to lang_is_rtl.
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
172 // Numbers: Never.
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
173 // System dawg (main wordlist).
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
174 if (!words.empty() && !WriteDawg(words, unicharset, Trie::RRP_REVERSE_IF_HAS_RTL,
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
175 TESSDATA_LSTM_SYSTEM_DAWG, traineddata)) {
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
176 return false;
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
177 }
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
178 // punc/punc-dawg.
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
179 Trie::RTLReversePolicy reverse_policy =
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
180 lang_is_rtl ? Trie::RRP_FORCE_REVERSE : Trie::RRP_DO_NO_REVERSE;
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
181 if (!WriteDawg(puncs, unicharset, reverse_policy, TESSDATA_LSTM_PUNC_DAWG, traineddata)) {
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
182 return false;
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
183 }
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
184 // numbers/number-dawg.
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
185 if (!numbers.empty() && !WriteDawg(numbers, unicharset, Trie::RRP_DO_NO_REVERSE,
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
186 TESSDATA_LSTM_NUMBER_DAWG, traineddata)) {
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
187 return false;
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
188 }
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
189 return true;
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
190 }
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
191
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
192 // The main function for combine_lang_model.cpp.
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>
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193 // Returns EXIT_SUCCESS or EXIT_FAILURE for error.
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194 int CombineLangModel(const UNICHARSET &unicharset, const std::string &script_dir,
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195 const std::string &version_str, const std::string &output_dir,
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196 const std::string &lang, bool pass_through_recoder,
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197 const std::vector<std::string> &words, const std::vector<std::string> &puncs,
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198 const std::vector<std::string> &numbers, bool lang_is_rtl, FileReader reader,
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199 FileWriter writer) {
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200 // Build the traineddata file.
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201 TessdataManager traineddata;
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202 if (!version_str.empty()) {
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203 traineddata.SetVersionString(traineddata.VersionString() + ":" + version_str);
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204 }
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205 // Unicharset and recoder.
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206 if (!WriteUnicharset(unicharset, output_dir, lang, writer, &traineddata)) {
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207 tprintf("Error writing unicharset!!\n");
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208 return EXIT_FAILURE;
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209 } else {
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210 tprintf("Config file is optional, continuing...\n");
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211 }
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212 // If there is a config file, read it and add to traineddata.
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213 std::string config_filename = script_dir + "/" + lang + "/" + lang + ".config";
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214 std::string config_file = ReadFile(config_filename, reader);
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215 if (config_file.length() > 0) {
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216 traineddata.OverwriteEntry(TESSDATA_LANG_CONFIG, &config_file[0], config_file.length());
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217 }
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218 std::string radical_filename = script_dir + "/radical-stroke.txt";
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219 std::string radical_data = ReadFile(radical_filename, reader);
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220 if (radical_data.empty()) {
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221 tprintf("Error reading radical code table %s\n", radical_filename.c_str());
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222 return EXIT_FAILURE;
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223 }
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224 if (!WriteRecoder(unicharset, pass_through_recoder, output_dir, lang, writer, &radical_data,
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225 &traineddata)) {
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226 tprintf("Error writing recoder!!\n");
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227 }
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228 if (!words.empty() || !puncs.empty() || !numbers.empty()) {
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229 if (!WriteDawgs(words, puncs, numbers, lang_is_rtl, unicharset, &traineddata)) {
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230 tprintf("Error during conversion of wordlists to DAWGs!!\n");
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231 return EXIT_FAILURE;
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232 }
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233 }
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234
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235 // Traineddata file.
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236 std::vector<char> traineddata_data;
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237 traineddata.Serialize(&traineddata_data);
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238 if (!WriteFile(output_dir, lang, ".traineddata", traineddata_data, writer)) {
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239 tprintf("Error writing output traineddata file!!\n");
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240 return EXIT_FAILURE;
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241 }
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242 tprintf("Created %s/%s/%s.traineddata", output_dir.c_str(), lang.c_str(), lang.c_str());
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243 return EXIT_SUCCESS;
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244 }
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245
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246 } // namespace tesseract