Fix use of wrong UNICHARSET

Signed-off-by: Stefan Weil <sw@weilnetz.de>
tesseract-ocr · Oct 6, 2018 · 8dc9e9f · 8dc9e9f
1 parent 0e43ae5
commit 8dc9e9f
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Showing 6 changed files with 23 additions and 12 deletions.
diff --git a/src/api/baseapi.h b/src/api/baseapi.h
@@ -75,6 +75,7 @@ class Trie;
 class Wordrec;
 
 typedef int (Dict::*DictFunc)(void* void_dawg_args,
+                              const UNICHARSET& unicharset,
                               UNICHAR_ID unichar_id, bool word_end) const;
 typedef double (Dict::*ProbabilityInContextFunc)(const char* lang,
                                                  const char* context,

diff --git a/src/dict/dict.cpp b/src/dict/dict.cpp
@@ -361,10 +361,13 @@ void Dict::End() {
 // according to at least one of the dawgs in the dawgs_ vector.
 // See more extensive comments in dict.h where this function is declared.
 int Dict::def_letter_is_okay(void* void_dawg_args,
+                             const UNICHARSET& unicharset,
                              UNICHAR_ID unichar_id,
                              bool word_end) const {
   DawgArgs *dawg_args = static_cast<DawgArgs *>(void_dawg_args);
 
+  ASSERT_HOST(unicharset.contains_unichar_id(unichar_id));
+
   if (dawg_debug_level >= 3) {
     tprintf("def_letter_is_okay: current unichar=%s word_end=%d"
             " num active dawgs=%d\n",
@@ -410,7 +413,7 @@ int Dict::def_letter_is_okay(void* void_dawg_args,
         for (int s = 0; s < slist.length(); ++s) {
           int sdawg_index = slist[s];
           const Dawg *sdawg = dawgs_[sdawg_index];
-          UNICHAR_ID ch = char_for_dawg(unichar_id, sdawg);
+          UNICHAR_ID ch = char_for_dawg(unicharset, unichar_id, sdawg);
           EDGE_REF dawg_edge = sdawg->edge_char_of(0, ch, word_end);
           if (dawg_edge != NO_EDGE) {
             if (dawg_debug_level >=3) {
@@ -477,7 +480,8 @@ int Dict::def_letter_is_okay(void* void_dawg_args,
     // Find the edge out of the node for the unichar_id.
     NODE_REF node = GetStartingNode(dawg, pos.dawg_ref);
     EDGE_REF edge = (node == NO_EDGE) ? NO_EDGE
-        : dawg->edge_char_of(node, char_for_dawg(unichar_id, dawg), word_end);
+        : dawg->edge_char_of(node, char_for_dawg(unicharset, unichar_id, dawg),
+                             word_end);
 
     if (dawg_debug_level >= 3) {
       tprintf("Active dawg: [%d, " REFFORMAT "] edge=" REFFORMAT "\n",
@@ -759,7 +763,8 @@ int Dict::valid_word(const WERD_CHOICE &word, bool numbers_ok) const {
   int last_index = word_ptr->length() - 1;
   // Call letter_is_okay for each letter in the word.
   for (int i = hyphen_base_size(); i <= last_index; ++i) {
-    if (!((this->*letter_is_okay_)(&dawg_args, word_ptr->unichar_id(i),
+    if (!((this->*letter_is_okay_)(&dawg_args, *word_ptr->unicharset(),
+                                   word_ptr->unichar_id(i),
                                    i == last_index))) break;
     // Swap active_dawgs, constraints with the corresponding updated vector.
     if (dawg_args.updated_dawgs == &(active_dawgs[1])) {

diff --git a/src/dict/dict.h b/src/dict/dict.h
@@ -351,15 +351,17 @@ class Dict {
    */
 
   //
-  int def_letter_is_okay(void* void_dawg_args,
+  int def_letter_is_okay(void* void_dawg_args, const UNICHARSET& unicharset,
                          UNICHAR_ID unichar_id, bool word_end) const;
 
   int (Dict::*letter_is_okay_)(void* void_dawg_args,
+                               const UNICHARSET& unicharset,
                                UNICHAR_ID unichar_id, bool word_end) const;
   /// Calls letter_is_okay_ member function.
-  int LetterIsOkay(void* void_dawg_args,
+  int LetterIsOkay(void* void_dawg_args, const UNICHARSET& unicharset,
                    UNICHAR_ID unichar_id, bool word_end) const {
-    return (this->*letter_is_okay_)(void_dawg_args, unichar_id, word_end);
+    return (this->*letter_is_okay_)(void_dawg_args,
+                                    unicharset, unichar_id, word_end);
   }
 
 
@@ -428,11 +430,12 @@ class Dict {
   // Given a unichar from a string and a given dawg, return the unichar
   // we should use to match in that dawg type.  (for example, in the number
   // dawg, all numbers are transformed to kPatternUnicharId).
-  inline UNICHAR_ID char_for_dawg(UNICHAR_ID ch, const Dawg *dawg) const {
+  UNICHAR_ID char_for_dawg(const UNICHARSET& unicharset, UNICHAR_ID ch,
+                           const Dawg *dawg) const {
     if (!dawg) return ch;
     switch (dawg->type()) {
       case DAWG_TYPE_NUMBER:
-        return getUnicharset().get_isdigit(ch) ? Dawg::kPatternUnicharID : ch;
+        return unicharset.get_isdigit(ch) ? Dawg::kPatternUnicharID : ch;
       default:
         return ch;
     }

diff --git a/src/dict/permdawg.cpp b/src/dict/permdawg.cpp
@@ -88,7 +88,7 @@ void Dict::go_deeper_dawg_fxn(
       ++num_unigrams;
       word->append_unichar_id(uch_id, 1, 0.0, 0.0);
       unigrams_ok = (this->*letter_is_okay_)(
-          &unigram_dawg_args,
+          &unigram_dawg_args, *word->unicharset(),
           word->unichar_id(word_index+num_unigrams-1),
           word_ending && i == encoding.size() - 1);
       (*unigram_dawg_args.active_dawgs) = *(unigram_dawg_args.updated_dawgs);
@@ -111,7 +111,8 @@ void Dict::go_deeper_dawg_fxn(
   // Check which dawgs from the dawgs_ vector contain the word
   // up to and including the current unichar.
   if (checked_unigrams || (this->*letter_is_okay_)(
-      more_args, word->unichar_id(word_index), word_ending)) {
+      more_args, *word->unicharset(), word->unichar_id(word_index),
+      word_ending)) {
     // Add a new word choice
     if (word_ending) {
       if (dawg_debug_level) {

diff --git a/src/lstm/recodebeam.cpp b/src/lstm/recodebeam.cpp
@@ -771,7 +771,8 @@ void RecodeBeamSearch::ContinueDawg(int code, int unichar_id, float cert,
     return;  // Can't continue if not a dict word.
   }
   PermuterType permuter = static_cast<PermuterType>(
-      dict_->def_letter_is_okay(&dawg_args, unichar_id, false));
+      dict_->def_letter_is_okay(&dawg_args,
+                                dict_->getUnicharset(), unichar_id, false));
   if (permuter != NO_PERM) {
     PushHeapIfBetter(kBeamWidths[0], code, unichar_id, permuter, false,
                      word_start, dawg_args.valid_end, false, cert, prev,

diff --git a/src/wordrec/language_model.cpp b/src/wordrec/language_model.cpp
@@ -853,7 +853,7 @@ LanguageModelDawgInfo *LanguageModel::GenerateDawgInfo(
     if (language_model_debug_level > 2)
       tprintf("Test Letter OK for unichar %d, normed %d\n",
               b.unichar_id(), normed_ids[i]);
-    dict_->LetterIsOkay(&dawg_args_, normed_ids[i],
+    dict_->LetterIsOkay(&dawg_args_, dict_->getUnicharset(), normed_ids[i],
                         word_end && i == normed_ids.size() - 1);
     if (dawg_args_.permuter == NO_PERM) {
       break;