tesseract  3.04.00
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tesseract::WordAltList Class Reference

#include <word_altlist.h>

Inheritance diagram for tesseract::WordAltList:
tesseract::AltList

Public Member Functions

 WordAltList (int max_alt)
 
 ~WordAltList ()
 
void Sort ()
 
bool Insert (char_32 *char_ptr, int cost, void *tag=NULL)
 
char_32Alt (int alt_idx)
 
void PrintDebug ()
 
- Public Member Functions inherited from tesseract::AltList
 AltList (int max_alt)
 
virtual ~AltList ()
 
int BestCost (int *best_alt) const
 
int AltCount () const
 
int AltCost (int alt_idx) const
 
double AltProb (int alt_idx) const
 
void * AltTag (int alt_idx) const
 

Additional Inherited Members

- Protected Attributes inherited from tesseract::AltList
int max_alt_
 
int alt_cnt_
 
int * alt_cost_
 
void ** alt_tag_
 

Detailed Description

Definition at line 32 of file word_altlist.h.

Constructor & Destructor Documentation

tesseract::WordAltList::WordAltList ( int  max_alt)
explicit

Definition at line 23 of file word_altlist.cpp.

24  : AltList(max_alt) {
25  word_alt_ = NULL;
26 }
AltList(int max_alt)
Definition: altlist.cpp:25
#define NULL
Definition: host.h:144
tesseract::WordAltList::~WordAltList ( )

Definition at line 28 of file word_altlist.cpp.

28  {
29  if (word_alt_ != NULL) {
30  for (int alt_idx = 0; alt_idx < alt_cnt_; alt_idx++) {
31  if (word_alt_[alt_idx] != NULL) {
32  delete []word_alt_[alt_idx];
33  }
34  }
35  delete []word_alt_;
36  word_alt_ = NULL;
37  }
38 }
#define NULL
Definition: host.h:144

Member Function Documentation

char_32* tesseract::WordAltList::Alt ( int  alt_idx)
inline

Definition at line 41 of file word_altlist.h.

41 { return word_alt_[alt_idx]; }
bool tesseract::WordAltList::Insert ( char_32 char_ptr,
int  cost,
void *  tag = NULL 
)

Definition at line 41 of file word_altlist.cpp.

41  {
42  if (word_alt_ == NULL || alt_cost_ == NULL) {
43  word_alt_ = new char_32*[max_alt_];
44  alt_cost_ = new int[max_alt_];
45  alt_tag_ = new void *[max_alt_];
46 
47  if (word_alt_ == NULL || alt_cost_ == NULL || alt_tag_ == NULL) {
48  return false;
49  }
50 
51  memset(alt_tag_, 0, max_alt_ * sizeof(*alt_tag_));
52  } else {
53  // check if alt already exists
54  for (int alt_idx = 0; alt_idx < alt_cnt_; alt_idx++) {
55  if (CubeUtils::StrCmp(word_str, word_alt_[alt_idx]) == 0) {
56  // update the cost if we have a lower one
57  if (cost < alt_cost_[alt_idx]) {
58  alt_cost_[alt_idx] = cost;
59  alt_tag_[alt_idx] = tag;
60  }
61  return true;
62  }
63  }
64  }
65 
66  // determine length of alternate
67  int len = CubeUtils::StrLen(word_str);
68 
69  word_alt_[alt_cnt_] = new char_32[len + 1];
70  if (word_alt_[alt_cnt_] == NULL) {
71  return false;
72  }
73 
74  if (len > 0) {
75  memcpy(word_alt_[alt_cnt_], word_str, len * sizeof(*word_str));
76  }
77 
78  word_alt_[alt_cnt_][len] = 0;
79  alt_cost_[alt_cnt_] = cost;
80  alt_tag_[alt_cnt_] = tag;
81 
82  alt_cnt_++;
83 
84  return true;
85 }
void ** alt_tag_
Definition: altlist.h:57
static int StrLen(const char_32 *str)
Definition: cube_utils.cpp:48
static int StrCmp(const char_32 *str1, const char_32 *str2)
Definition: cube_utils.cpp:58
#define NULL
Definition: host.h:144
signed int char_32
Definition: string_32.h:40
void tesseract::WordAltList::PrintDebug ( )

Definition at line 108 of file word_altlist.cpp.

108  {
109  for (int alt_idx = 0; alt_idx < alt_cnt_; alt_idx++) {
110  char_32 *word_32 = word_alt_[alt_idx];
111  string word_str;
112  CubeUtils::UTF32ToUTF8(word_32, &word_str);
113  int num_unichars = CubeUtils::StrLen(word_32);
114  fprintf(stderr, "Alt[%d]=%s (cost=%d, num_unichars=%d); unichars=", alt_idx,
115  word_str.c_str(), alt_cost_[alt_idx], num_unichars);
116  for (int i = 0; i < num_unichars; ++i)
117  fprintf(stderr, "%d ", word_32[i]);
118  fprintf(stderr, "\n");
119  }
120 }
static int StrLen(const char_32 *str)
Definition: cube_utils.cpp:48
static void UTF32ToUTF8(const char_32 *utf32_str, string *str)
Definition: cube_utils.cpp:258
signed int char_32
Definition: string_32.h:40
void tesseract::WordAltList::Sort ( )
virtual

Implements tesseract::AltList.

Definition at line 88 of file word_altlist.cpp.

88  {
89  for (int alt_idx = 0; alt_idx < alt_cnt_; alt_idx++) {
90  for (int alt = alt_idx + 1; alt < alt_cnt_; alt++) {
91  if (alt_cost_[alt_idx] > alt_cost_[alt]) {
92  char_32 *pchTemp = word_alt_[alt_idx];
93  word_alt_[alt_idx] = word_alt_[alt];
94  word_alt_[alt] = pchTemp;
95 
96  int temp = alt_cost_[alt_idx];
97  alt_cost_[alt_idx] = alt_cost_[alt];
98  alt_cost_[alt] = temp;
99 
100  void *tag = alt_tag_[alt_idx];
101  alt_tag_[alt_idx] = alt_tag_[alt];
102  alt_tag_[alt] = tag;
103  }
104  }
105  }
106 }
void ** alt_tag_
Definition: altlist.h:57
signed int char_32
Definition: string_32.h:40

The documentation for this class was generated from the following files: