annotate mupdf-source/thirdparty/tesseract/src/wordrec/lm_state.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: lm_state.cpp
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3 // Description: Structures and functionality for capturing the state of
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4 // segmentation search guided by the language model.
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5 // Author: Rika Antonova
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6 //
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7 // (C) Copyright 2012, Google Inc.
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8 // Licensed under the Apache License, Version 2.0 (the "License");
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9 // you may not use this file except in compliance with the License.
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10 // You may obtain a copy of the License at
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11 // http://www.apache.org/licenses/LICENSE-2.0
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12 // Unless required by applicable law or agreed to in writing, software
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13 // distributed under the License is distributed on an "AS IS" BASIS,
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14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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15 // See the License for the specific language governing permissions and
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16 // limitations under the License.
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17 //
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18 ///////////////////////////////////////////////////////////////////////
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20 #include "lm_state.h"
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22 namespace tesseract {
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23
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24 void ViterbiStateEntry::Print(const char *msg) const {
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25 tprintf("%s ViterbiStateEntry", msg);
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26 if (updated) {
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27 tprintf("(NEW)");
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28 }
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29 if (this->debug_str != nullptr) {
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30 tprintf(" str=%s", this->debug_str->c_str());
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31 }
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32 tprintf(" with ratings_sum=%.4f length=%d cost=%.6f", this->ratings_sum, this->length,
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33 this->cost);
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34 if (this->top_choice_flags) {
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35 tprintf(" top_choice_flags=0x%x", this->top_choice_flags);
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36 }
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37 if (!this->Consistent()) {
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38 tprintf(" inconsistent=(punc %d case %d chartype %d script %d font %d)",
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39 this->consistency_info.NumInconsistentPunc(),
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40 this->consistency_info.NumInconsistentCase(),
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41 this->consistency_info.NumInconsistentChartype(),
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42 this->consistency_info.inconsistent_script, this->consistency_info.inconsistent_font);
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43 }
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44 if (this->dawg_info) {
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45 tprintf(" permuter=%d", this->dawg_info->permuter);
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46 }
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47 if (this->ngram_info) {
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48 tprintf(" ngram_cl_cost=%g context=%s ngram pruned=%d",
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49 this->ngram_info->ngram_and_classifier_cost, this->ngram_info->context.c_str(),
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50 this->ngram_info->pruned);
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51 }
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52 if (this->associate_stats.shape_cost > 0.0f) {
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53 tprintf(" shape_cost=%g", this->associate_stats.shape_cost);
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54 }
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55 tprintf(" %s", XHeightConsistencyEnumName[this->consistency_info.xht_decision]);
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56
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57 tprintf("\n");
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58 }
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59
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60 /// Clears the viterbi search state back to its initial conditions.
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61 void LanguageModelState::Clear() {
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62 viterbi_state_entries.clear();
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63 viterbi_state_entries_prunable_length = 0;
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64 viterbi_state_entries_prunable_max_cost = FLT_MAX;
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65 viterbi_state_entries_length = 0;
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66 }
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67
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68 void LanguageModelState::Print(const char *msg) {
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69 tprintf("%s VSEs (max_cost=%g prn_len=%d tot_len=%d):\n", msg,
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70 viterbi_state_entries_prunable_max_cost, viterbi_state_entries_prunable_length,
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71 viterbi_state_entries_length);
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72 ViterbiStateEntry_IT vit(&viterbi_state_entries);
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73 for (vit.mark_cycle_pt(); !vit.cycled_list(); vit.forward()) {
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74 vit.data()->Print("");
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75 }
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76 }
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77
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78 } // namespace tesseract