pfil_parse_4.cc

这是处理语音信号的程序

// file: param_parse_4.cc
//
 
// isip include files
//
#include "param_file.h"
#include "param_file_constants.h"

// system include files
//
#include <string.h>

// method: edge_strip_cc
//
// arguments:
//  char_1* buffer: (input/output) parameter file text
//  char_1* chars: (input) characters to remove
//
// return:  a logical_1 indicating status
//
// this method removes all instances of chars at the begining and
// end of buffer
//
logical_1 Param_file::edge_strip_cc(char_1* buffer_a, char_1* chars_a) {

  if ((buffer_a == (char_1*)NULL) || (chars_a == (char_1*)NULL)) {
    error_handler_cc((char_1*)"full_strip_cc",
		     (char_1*)"the input string is NULL");
  }
  
  char_1* buff_p;
  char_1* fixed_buff_p;
  
  // buff_p: the pointer to the original buffer that is read from
  // fixed_buff_p: the pointer that is writen to.
  //
  // note: we can both read at buff_p and write at fixed_buff_p
  //       since buff_p >= fixed_buff_p and we always read before
  //       we write
  //
  buff_p = buffer_a;
  fixed_buff_p = buffer_a;

  //  while ( ((int_4)buff_p - (int_4)buffer_a) < in_len_a) {

  // advance over the first part of the string that contains the characters
  //
  while ((*buff_p != (char_1)NULL) &&
	 (strchr((char*)chars_a, (char)*buff_p) != (char_1)NULL)) {
    buff_p++;
  }

  if (*buff_p == (char_1)NULL) {
    *fixed_buff_p = (char_1)NULL;
  }
  else {
    while (*buff_p != (char_1)NULL) {
      *fixed_buff_p = *buff_p;
      fixed_buff_p++;
      buff_p++;
    }
    *fixed_buff_p = (char_1)NULL;

    fixed_buff_p--;
    while (((int_4)fixed_buff_p > (int_4)buffer_a) &&
	   (strchr((char*)chars_a, (char)*fixed_buff_p) != (char_1)NULL)) {
      *fixed_buff_p = (char_1)NULL;
      fixed_buff_p--;
    }
    
  }




  
  
  // exit gracefully
  //
  return ISIP_TRUE;
}