CHIRP

/*tidy.c -- clean up the .tsv output from tshark for a serial-over-USB

  session. input from stdin, output to stdout.

  Copyright (c) 2019 Dan Clemmensen, licensed to you under GPL v3.

  input lines:

    source\tinfo\tdata\n

  for each line:

     get dirchar (first char of source is 'h' or not),

     get bulk char (fourth char of info is 'B' or not),

     get start of data

     If dir changed,

       print existing buffer and start a new one

     remove the colons from the data and append to buffer

  at end, print buffer

  output line starts with '<' or '>' for direction, followed by the hex chars

  sent or received.

*/

#include <strings.h>

#include <string.h>

#include <stdio.h>

#include <stdlib.h>

static char separator = '\t';

int main()

{

  char buff[1000];

  char *inpt=buff;

  size_t buflen=1000;

  int len;

  char outbuff[1000];

  int dir=2;    //2= unknown, 1=from host, 0= to host

  int newdir=0;

  int ndx=0;

  char *pt;

  char chr;

  while (-1!=(len=getline(&inpt,&buflen,stdin)))

  { if(buff[len-1]=='\n') 

      buff[len-1]='\0';

    pt=strchr(buff,separator);

    if((pt[5]=='B') && (0!=*(pt=1+strchr(pt+1,separator))))

    { newdir= buff[0]=='h';

      if(newdir!=dir)

      { if (ndx)

        { outbuff[ndx]=0;

          printf("%c%s\n",dir?'>':'<',outbuff);

        }

        dir=newdir;

        ndx=0;

      }

      while(0!=(chr=*pt++))

        if(chr!=':')

          outbuff[ndx++]=chr;

    }  

  }

  outbuff[ndx]=0;

  if(ndx)

    printf("%c%s\n",dir?'>':'<',outbuff);  //last line

  return 0;

}