Tesseract  3.02
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tesseract::WordAltList Class Reference

#include <word_altlist.h>

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

List of all members.

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.

: AltList(max_alt) {
word_alt_ = NULL;
}
tesseract::WordAltList::~WordAltList ( )

Definition at line 28 of file word_altlist.cpp.

{
if (word_alt_ != NULL) {
for (int alt_idx = 0; alt_idx < alt_cnt_; alt_idx++) {
if (word_alt_[alt_idx] != NULL) {
delete []word_alt_[alt_idx];
}
}
delete []word_alt_;
word_alt_ = NULL;
}
}

Member Function Documentation

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

Definition at line 41 of file word_altlist.h.

{ 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.

{
if (word_alt_ == NULL || alt_cost_ == NULL) {
word_alt_ = new char_32*[max_alt_];
alt_cost_ = new int[max_alt_];
alt_tag_ = new void *[max_alt_];
if (word_alt_ == NULL || alt_cost_ == NULL || alt_tag_ == NULL) {
return false;
}
memset(alt_tag_, 0, max_alt_ * sizeof(*alt_tag_));
} else {
// check if alt already exists
for (int alt_idx = 0; alt_idx < alt_cnt_; alt_idx++) {
if (CubeUtils::StrCmp(word_str, word_alt_[alt_idx]) == 0) {
// update the cost if we have a lower one
if (cost < alt_cost_[alt_idx]) {
alt_cost_[alt_idx] = cost;
alt_tag_[alt_idx] = tag;
}
return true;
}
}
}
// determine length of alternate
int len = CubeUtils::StrLen(word_str);
word_alt_[alt_cnt_] = new char_32[len + 1];
if (word_alt_[alt_cnt_] == NULL) {
return false;
}
if (len > 0) {
memcpy(word_alt_[alt_cnt_], word_str, len * sizeof(*word_str));
}
word_alt_[alt_cnt_][len] = 0;
alt_cnt_++;
return true;
}
void tesseract::WordAltList::PrintDebug ( )

Definition at line 108 of file word_altlist.cpp.

{
for (int alt_idx = 0; alt_idx < alt_cnt_; alt_idx++) {
char_32 *word_32 = word_alt_[alt_idx];
string word_str;
CubeUtils::UTF32ToUTF8(word_32, &word_str);
int num_unichars = CubeUtils::StrLen(word_32);
fprintf(stderr, "Alt[%d]=%s (cost=%d, num_unichars=%d); unichars=", alt_idx,
word_str.c_str(), alt_cost_[alt_idx], num_unichars);
for (int i = 0; i < num_unichars; ++i)
fprintf(stderr, "%d ", word_32[i]);
fprintf(stderr, "\n");
}
}
void tesseract::WordAltList::Sort ( )
virtual

Implements tesseract::AltList.

Definition at line 88 of file word_altlist.cpp.

{
for (int alt_idx = 0; alt_idx < alt_cnt_; alt_idx++) {
for (int alt = alt_idx + 1; alt < alt_cnt_; alt++) {
if (alt_cost_[alt_idx] > alt_cost_[alt]) {
char_32 *pchTemp = word_alt_[alt_idx];
word_alt_[alt_idx] = word_alt_[alt];
word_alt_[alt] = pchTemp;
int temp = alt_cost_[alt_idx];
alt_cost_[alt_idx] = alt_cost_[alt];
alt_cost_[alt] = temp;
void *tag = alt_tag_[alt_idx];
alt_tag_[alt_idx] = alt_tag_[alt];
alt_tag_[alt] = tag;
}
}
}
}

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