gc_read_1.cc

这是处理语音信号的程序

	  probability_a[0]*=target_prob;
      }
      
      if(alternative_bool==ISIP_TRUE) {
	size_a+=offset;
	
	// make room for adding "~prob_vale" for every terminal
	// by moving all symbols to backward offset position 
	//
	for(int_4 k=size_a-1; k>=i_start+offset; k--)
	  symbols_a[k]=symbols_a[k-offset];
	
	int_4 j_start=i_start+offset+1; //get start position
	int_4 j_new_start=i_start+1; //get start position	  
	  
	// deal with every terminal or sub-expression
	//
	for(int_4 j=0; j<sub_total; j++) {

	  i_brace_indicate=0;
	  
	  // find the first terminal or expression
	  // if it is sub-expression, move all the way
	  // till the end of sub-expression
	  //
	  if(strcmp((char *)symbols_a[j_start], (char *)BRACE_START)==0) {
	    symbols_a[j_new_start++]=symbols_a[j_start];
	    
	    // copy the symbol to correct position
	    //
	    i_brace_indicate++;
	    j_start++; //move to next symbol
	    
	    while (i_brace_indicate!=0) {
	      if(strcmp((char *)symbols_a[j_start], (char *)BRACE_START)==0) {
		symbols_a[j_new_start++]=symbols_a[j_start];
		i_brace_indicate++;
	      }
	      else if(strcmp((char *)symbols_a[j_start],
			     (char *)BRACE_CLOSE)==0) {
		symbols_a[j_new_start++]=symbols_a[j_start];
		i_brace_indicate--;
	      }
	      else
		symbols_a[j_new_start++]=symbols_a[j_start];
	      j_start++; //move to next symbol
	    } //end of while i_brace_indicate
	    
	    // if it is "~" just eat it
	    //
	    if(strcmp((char *)symbols_a[j_start],
		      (char *)PROBABILITY_SYMBOL)==0) {
	      
	      // copy ~ mark and add new probability value
	      //
	      symbols_a[j_new_start++]=symbols_a[j_start++];
	      char_1* temp_buff = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
	      sprintf((char*)temp_buff, "%3.3f",probability_a[j]);
	      symbols_a[j_new_start++]=temp_buff;
	      j_start++; //eat the older probability value
	      symbols_a[j_new_start++]=symbols_a[j_start++];				      
	    }
	    
	    // create new ~ mark and new probability value
	    //
	    else {
	      char_1* temp_buff1 = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
	      char_1* temp_buff2 = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
	      sprintf((char*)temp_buff1, "%s","~");
	      sprintf((char*)temp_buff2, "%3.3f",probability_a[j]);
	      symbols_a[j_new_start++]=temp_buff1;
	      symbols_a[j_new_start++]=temp_buff2;
	      offset-=2;
	      
	      // if last element, add ')'
	      //
	      if(j==sub_total-1)  {
		char_1* temp_buff3 = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
		sprintf((char*)temp_buff3, "%s",")");
		symbols_a[j_new_start++]=temp_buff3;
	      }
	      else
		symbols_a[j_new_start++]=symbols_a[j_start++];
	    }
	    
	  } //end of if BRACE_START
	  
	  // if move to here this is terminal
	  //
	  else {
	    symbols_a[j_new_start++]=symbols_a[j_start++];
	    
	    if(strcmp((char *)symbols_a[j_start],
		      (char *)PROBABILITY_SYMBOL)==0) {
	      
	      // copy ~ mark and add new probability value
	      //
	      symbols_a[j_new_start++]=symbols_a[j_start++];
	      char_1* temp_buff = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
	      sprintf((char*)temp_buff, "%3.3f",probability_a[j]);
	      symbols_a[j_new_start++]=temp_buff;
	      j_start++; //eat the older probability value 
	      symbols_a[j_new_start++]=symbols_a[j_start++];
	    }
	    else {

	      // add ~ mark and new probability value
	      //
	      char_1* temp_buff1 = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
	      char_1* temp_buff2 = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
	      sprintf((char*)temp_buff1, "%s","~");
	      sprintf((char*)temp_buff2, "%3.3f",probability_a[j]);
	      symbols_a[j_new_start++]=temp_buff1;
	      symbols_a[j_new_start++]=temp_buff2;
	      offset-=2;

	      // if last element, add ')'
	      //
	      if(j==sub_total-1) {
		char_1* temp_buff3 = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
		sprintf((char*)temp_buff3, "%s",")");
		symbols_a[j_new_start++]=temp_buff3;
	      }
	      else
		symbols_a[j_new_start++]=symbols_a[j_start++];	      
	      
	    }
	  } //end of else
	} //end of for( sub_total) loop
	  
	alternative_bool=ISIP_FALSE;
	
	// move all symbols back to its original position
	//
	for(int_4 k=j_new_start; k<size_a-2; k++)
	  symbols_a[k]=symbols_a[k+2];
	size_a-=2;
	symbols_a[size_a]=(char_1*)NULL;
	
      } //end of if (alternative_bool ==ISIP_TRUE)
      
      else {
	
	// first terminal has probability value already
	//
	if(prob_bool_a[0]==ISIP_TRUE) {
	  i_pointer=i_start+1;
	  
	  //find the probability value position
	  // if it is sub-expression, move all the way
	  // till the end of sub-expression
	  //
	  if(strcmp((char *)symbols_a[i_pointer], (char *)BRACE_START)==0) {
	    i_brace_indicate++;
	    i_pointer++; //move to next symbol
	    
	    while (i_brace_indicate!=0) {
	      if(strcmp((char *)symbols_a[i_pointer], (char *)BRACE_START)==0)
		i_brace_indicate++;
	      else if(strcmp((char *)symbols_a[i_pointer],
			     (char *)BRACE_CLOSE)==0)
		i_brace_indicate--;
	      else
		i_pointer++; //move to next symbol
	    } //end of while i_brace_indicate
	    
	    // if it is "~" just eat it
	    // it is sure we can find this point
	    //
	    if(strcmp((char *)symbols_a[i_pointer],
		      (char *)PROBABILITY_SYMBOL)==0) {
	      char_1* temp_buff = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
	      
	      sprintf((char*)temp_buff, "%3.3f",probability_a[0]);
	      symbols_a[i_pointer+1]=temp_buff;      
	    }
	    
	    else  i_pointer--; //push back the symbol
	    
	  } //end of if BRACE_START
	  
	  // if move to here this is terminal
	  //
	  else {
	    i_pointer++;
	    if(strcmp((char *)symbols_a[i_pointer],
		      (char *)PROBABILITY_SYMBOL)==0) {
	      char_1* temp_buff = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
	      sprintf((char*)temp_buff, "%3.3f",probability_a[0]);
	      symbols_a[i_pointer+1]=temp_buff;
	    }
	    else
	      i_pointer--;
	    
	  }
	  
	  // remove the target probability value
	  //
	  for(int_4 k=i_end+1; k< GC_GRAM_MAX_SYMBOL_SIZE-2; k++)
	    symbols_a[k]=symbols_a[k+2];

	  // size will reduce two because we delete the ~prob_value
	  //
	  size_a=size_a-2;
	  
	} //end of if

	// first terminal has no probability value
	//
	else {
	  i_pointer=i_start+1;

	  //find the probability value position
	  // if it is sub-expression, move all the way
	  // till the end of sub-expression
	  //
	  if(strcmp((char *)symbols_a[i_pointer], (char *)BRACE_START)==0) {
	    i_brace_indicate++;
	    i_pointer++; //move to next symbol
	    
	    while (i_brace_indicate!=0) {
	      if(strcmp((char *)symbols_a[i_pointer], (char *)BRACE_START)==0)
		i_brace_indicate++;
	      else if(strcmp((char *)symbols_a[i_pointer],
			     (char *)BRACE_CLOSE)==0)
		i_brace_indicate--;
	      
	      i_pointer++; //move to next symbol
	    } //end of while i_brace_indicate
	    
	    i_pointer--; //push back the symbol
	    
	  } //end of if BRACE_START
	  
	  // remove the target probability value by moving all symbol
	  // backward two position
	  //
	  for(int_4 k=i_end; k>i_pointer; k--)
	    symbols_a[k+2]=symbols_a[k];
	  
	  // add ~ mark and probability value
	  //
	  char_1* temp_buff1 = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
	  char_1* temp_buff2 = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
	  sprintf((char*)temp_buff1, "%s","~");
	  sprintf((char*)temp_buff2, "%3.3f",probability_a[0]);
	  symbols_a[i_pointer+1]=temp_buff1;
	  symbols_a[i_pointer+2]=temp_buff2;

	  // if last element, add ')'
	  //
	  if(sub_total==1) {
	    char_1* temp_buff3 = new char_1[GC_GRAM_MAX_SYMBOL_SIZE];
	    sprintf((char*)temp_buff3, "%s",")");
	    symbols_a[i_pointer+3]=temp_buff3;
	  }
	  
	}
      }
      
      i_pointer=size_a-1;
      i_end=0;

      // search for new created ")~" after distribution
      //
      while(i_pointer>0) {
	if((strcmp((char *)symbols_a[i_pointer], (char *)PROBABILITY_SYMBOL)==0
	    && strcmp((char *)symbols_a[i_pointer-1],
		      (char *)BRACE_CLOSE)==0) ) {
	  target_prob=(float_8) atof((char*)symbols_a[i_pointer+1]);
	  i_end=i_pointer-1;
	  i_brace_indicate++;
	  break;
	}
	i_pointer--;
      }
      i_brace_indicate=0; // we only need the i_loop for while_loop

      // if ")~" exist, need to search again after enter while loop again
      //
      
      i_loop=i_end;
      
  }//end of while (i_loop)
  
  // exit gracefully
  //
  return ISIP_TRUE;
}