/*
* ex_print --
* Print the selected lines.
*
* PUBLIC: int ex_print(SCR *, EXCMD *, MARK *, MARK *, u_int32_t);
*/
int
ex_print(SCR *sp, EXCMD *cmdp, MARK *fp, MARK *tp, u_int32_t flags)
{
GS *gp;
recno_t from, to;
size_t col, len;
CHAR_T *p;
CHAR_T buf[10];
NEEDFILE(sp, cmdp);
gp = sp->gp;
for (from = fp->lno, to = tp->lno; from <= to; ++from) {
col = 0;
/*
* Display the line number. The %6 format is specified
* by POSIX 1003.2, and is almost certainly large enough.
* Check, though, just in case.
*/
if (LF_ISSET(E_C_HASH)) {
if (from <= 999999) {
SPRINTF(buf, SIZE(buf), L("%6u "), from);
p = buf;
} else
p = L("TOOBIG ");
if (ex_prchars(sp, p, &col, 8, 0, 0))
return (1);
}
/*
* Display the line. The format for E_C_PRINT isn't very good,
* especially in handling end-of-line tabs, but they're almost
* backward compatible.
*/
if (db_get(sp, from, DBG_FATAL, &p, &len))
return (1);
if (len == 0 && !LF_ISSET(E_C_LIST))
(void)ex_puts(sp, "\n");
else if (ex_ldisplay(sp, p, len, col, flags))
return (1);
if (INTERRUPTED(sp))
break;
}
return (0);
}
/*
* filter_ldisplay --
* Display output from a utility.
*
* !!!
* Historically, the characters were passed unmodified to the terminal.
* We use the ex print routines to make sure they're printable.
*/
static int
filter_ldisplay(SCR *sp, FILE *fp)
{
size_t len;
size_t wlen;
CHAR_T *wp;
EX_PRIVATE *exp;
for (exp = EXP(sp); !ex_getline(sp, fp, &len) && !INTERRUPTED(sp);) {
FILE2INT5(sp, exp->ibcw, exp->ibp, len, wp, wlen);
if (ex_ldisplay(sp, wp, wlen, 0, 0))
break;
}
if (ferror(fp))
msgq(sp, M_SYSERR, "filter read");
(void)fclose(fp);
return (0);
}