mutt_buffer_addch (dest, toupper (ch) - '@');
mutt_buffer_addch (dest, toupper ((unsigned char) ch) - '@');
int mutt_extract_token (BUFFER *dest, BUFFER *tok, int flags){  char		ch;  char		qc = 0; /* quote char */  char		*pc;  /* reset the destination pointer to the beginning of the buffer */  dest->dptr = dest->data;  SKIPWS (tok->dptr);  while ((ch = *tok->dptr))  {    if (!qc)    {      if ((ISSPACE (ch) && !(flags & M_TOKEN_SPACE)) ||	  (ch == '#' && !(flags & M_TOKEN_COMMENT)) ||	  (ch == '=' && (flags & M_TOKEN_EQUAL)) ||	  (ch == ';' && !(flags & M_TOKEN_SEMICOLON)) ||	  ((flags & M_TOKEN_PATTERN) && strchr ("~!|", ch)))	break;    }    tok->dptr++;    if (ch == qc)      qc = 0; /* end of quote */    else if (!qc && (ch == '\'' || ch == '"') && !(flags & M_TOKEN_QUOTE))      qc = ch;    else if (ch == '\\' && qc != '\'')    {	if (!*tok->dptr)	    return -1; /* premature end of token */      switch (ch = *tok->dptr++)      {	case 'c':	case 'C':	    if (!*tok->dptr)		return -1; /* premature end of token */	  mutt_buffer_addch (dest, (toupper (*tok->dptr) - '@') & 0x7f);	  tok->dptr++;	  break;	case 'r':	  mutt_buffer_addch (dest, '\r');	  break;	case 'n':	  mutt_buffer_addch (dest, '\n');	  break;	case 't':	  mutt_buffer_addch (dest, '\t');	  break;	case 'f':	  mutt_buffer_addch (dest, '\f');	  break;	case 'e':	  mutt_buffer_addch (dest, '\033');	  break;	default:	  if (isdigit ((unsigned char) ch) &&	      isdigit ((unsigned char) *tok->dptr) &&	      isdigit ((unsigned char) *(tok->dptr + 1)))	  {	    mutt_buffer_addch (dest, (ch << 6) + (*tok->dptr << 3) + *(tok->dptr + 1) - 3504);	    tok->dptr += 2;	  }	  else	    mutt_buffer_addch (dest, ch);      }    }    else if (ch == '^' && (flags & M_TOKEN_CONDENSE))    {	if (!*tok->dptr)	    return -1; /* premature end of token */      ch = *tok->dptr++;      if (ch == '^')	mutt_buffer_addch (dest, ch);      else if (ch == '[')	mutt_buffer_addch (dest, '\033');      else if (isalpha ((unsigned char) ch))	mutt_buffer_addch (dest, toupper (ch) - '@');      else      {	mutt_buffer_addch (dest, '^');	mutt_buffer_addch (dest, ch);      }    }    else if (ch == '`' && (!qc || qc == '"'))    {      FILE	*fp;      pid_t	pid;      char	*cmd, *ptr;      size_t	expnlen;      BUFFER	expn;      int	line = 0;      pc = tok->dptr;      do {	if ((pc = strpbrk (pc, "\\`")))	{	  /* skip any quoted chars */	  if (*pc == '\\')	    pc += 2;	}      } while (pc && *pc != '`');      if (!pc)      {	dprint (1, (debugfile, "mutt_get_token: mismatched backtics\n"));	return (-1);      }      cmd = mutt_substrdup (tok->dptr, pc);      if ((pid = mutt_create_filter (cmd, NULL, &fp, NULL)) < 0)      {	dprint (1, (debugfile, "mutt_get_token: unable to fork command: %s", cmd));	FREE (&cmd);	return (-1);      }      FREE (&cmd);      tok->dptr = pc + 1;      /* read line */      memset (&expn, 0, sizeof (expn));      expn.data = mutt_read_line (NULL, &expn.dsize, fp, &line);      fclose (fp);      mutt_wait_filter (pid);      /* if we got output, make a new string consiting of the shell ouptput	 plus whatever else was left on the original line */      /* BUT: If this is inside a quoted string, directly add output to        * the token */      if (expn.data && qc)      {	mutt_buffer_addstr (dest, expn.data);	FREE (&expn.data);      }      else if (expn.data)      {	expnlen = mutt_strlen (expn.data);	tok->dsize = expnlen + mutt_strlen (tok->dptr) + 1;	ptr = safe_malloc (tok->dsize);	memcpy (ptr, expn.data, expnlen);	strcpy (ptr + expnlen, tok->dptr);	/* __STRCPY_CHECKED__ */	if (tok->destroy)	  FREE (&tok->data);	tok->data = ptr;	tok->dptr = ptr;	tok->destroy = 1; /* mark that the caller should destroy this data */	ptr = NULL;	FREE (&expn.data);      }    }    else if (ch == '$' && (!qc || qc == '"') && (*tok->dptr == '{' || isalpha ((unsigned char) *tok->dptr)))    {      char *env = NULL, *var = NULL;      if (*tok->dptr == '{')      {	tok->dptr++;	if ((pc = strchr (tok->dptr, '}')))	{	  var = mutt_substrdup (tok->dptr, pc);	  tok->dptr = pc + 1;	}      }      else      {	for (pc = tok->dptr; isalpha ((unsigned char) *pc) || *pc == '_'; pc++)	  ;	var = mutt_substrdup (tok->dptr, pc);	tok->dptr = pc;      }      if (var && (env = getenv (var)))	mutt_buffer_addstr (dest, env);      FREE (&var);    }    else      mutt_buffer_addch (dest, ch);  }  mutt_buffer_addch (dest, 0); /* terminate the string */  SKIPWS (tok->dptr);  return 0;}