fis-gtm/sr_port/iott_wteol.c

61 lines
1.8 KiB
C

/****************************************************************
* *
* Copyright 2001, 2007 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#include "mdef.h"
#include "gtm_string.h"
#ifdef UNIX
#include "error.h"
#endif
#include "io.h"
#include "iottdef.h"
/* essentially the same as ionl_wteol */
void iott_wteol(int4 val, io_desc *io_ptr)
{
mstr eol;
int eol_cnt;
UNIX_ONLY(d_tt_struct *tt_ptr;)
UNIX_ONLY(error_def(ERR_ZINTRECURSEIO);)
assert(val);
#ifdef UNIX
tt_ptr = (d_tt_struct *)io_ptr->dev_sp;
if (tt_ptr->mupintr)
rts_error(VARLSTCNT(1) ERR_ZINTRECURSEIO);
#endif
io_ptr->esc_state = START;
eol.len = STRLEN(NATIVE_TTEOL);
eol.addr = (char *)NATIVE_TTEOL;
for (eol_cnt = val; eol_cnt--; )
{
io_ptr->dollar.x = 0; /* so that iott_write doesn't try to wrap (based on escape state and width) */
iott_write(&eol);
}
/* $X is maintained in VMS without the below assignment (resetting to 0) because the NATIVE_TTEOL is \015\012
* and the <CR> (\015) triggers appropriate maintenance of $X. In UNIX, NATIVE_TTEOL is \012, so
* FILTER=CHARACTER effectively turns off all $X maintenance (except for WRAP logic).
* In VMS the below assignment is not necessary, but harmless; it is always logically correct.
*/
io_ptr->dollar.x = 0;
if (!(io_ptr->write_filter & CHAR_FILTER))
{ /* If no FILTER and EOL, also maintain $Y;
* If FILTER, dollarx() of the linefeed character \012 takes care of this maintenance.
*/
io_ptr->dollar.y += val;
if (io_ptr->length)
io_ptr->dollar.y %= io_ptr->length;
}
return;
}