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freebsd-skq/contrib/tcsh/ed.init.c

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/* $Header: /src/pub/tcsh/ed.init.c,v 3.43 2000/11/11 23:03:34 christos Exp $ */
/*
* ed.init.c: Editor initializations
*/
/*-
* Copyright (c) 1980, 1991 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTS_ION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "sh.h"
RCSID("$Id: ed.init.c,v 3.43 2000/11/11 23:03:34 christos Exp $")
#include "ed.h"
#include "ed.term.h"
#include "tc.h"
#include "ed.defns.h"
/* ed.init.c -- init routines for the line editor */
/* #define DEBUG_TTY */
int Tty_raw_mode = 0; /* Last tty change was to raw mode */
int MacroLvl = -1; /* pointer to current macro nesting level; */
/* (-1 == none) */
static int Tty_quote_mode = 0; /* Last tty change was to quote mode */
static unsigned char vdisable; /* The value of _POSIX_VDISABLE from
* pathconf(2) */
int Tty_eight_bit = -1; /* does the tty handle eight bits */
extern bool GotTermCaps;
static ttydata_t extty, edtty, tstty;
#define qutty tstty
extern int insource;
#define SHTTY (insource ? OLDSTD : SHIN)
#define uc unsigned char
static unsigned char ttychars[NN_IO][C_NCC] = {
{
(uc)CINTR, (uc)CQUIT, (uc)CERASE, (uc)CKILL,
(uc)CEOF, (uc)CEOL, (uc)CEOL2, (uc)CSWTCH,
(uc)CDSWTCH, (uc)CERASE2, (uc)CSTART, (uc)CSTOP,
(uc)CWERASE, (uc)CSUSP, (uc)CDSUSP, (uc)CREPRINT,
(uc)CDISCARD, (uc)CLNEXT, (uc)CSTATUS, (uc)CPAGE,
(uc)CPGOFF, (uc)CKILL2, (uc)CBRK, (uc)CMIN,
(uc)CTIME
},
{
CINTR, CQUIT, CERASE, CKILL,
_POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE,
_POSIX_VDISABLE, CERASE2, CSTART, CSTOP,
_POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE,
CDISCARD, _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE,
_POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, 1,
0
},
{
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0
}
};
#ifdef SIG_WINDOW
void
check_window_size(force)
int force;
{
#ifdef BSDSIGS
sigmask_t omask;
#endif /* BSDSIGS */
int lins, cols;
/* don't want to confuse things here */
#ifdef BSDSIGS
omask = sigblock(sigmask(SIG_WINDOW)) & ~sigmask(SIG_WINDOW);
#else /* BSDSIGS */
(void) sighold(SIG_WINDOW);
#endif /* BSDSIGS */
/*
* From: bret@shark.agps.lanl.gov (Bret Thaeler) Avoid sunview bug, where a
* partially hidden window gets a SIG_WINDOW every time the text is
* scrolled
*/
if (GetSize(&lins, &cols) || force) {
if (GettingInput) {
ClearLines();
ClearDisp();
MoveToLine(0);
MoveToChar(0);
ChangeSize(lins, cols);
Refresh();
}
else
ChangeSize(lins, cols);
}
#ifdef BSDSIGS
(void) sigsetmask(omask); /* can change it again */
#else /* BSDSIGS */
(void) sigrelse(SIG_WINDOW);
#endif /* BSDSIGS */
}
sigret_t
/*ARGSUSED*/
window_change(snum)
int snum;
{
USE(snum);
#ifdef UNRELSIGS
/* If we were called as a signal handler, restore it. */
if (snum > 0)
sigset(snum, window_change);
#endif /* UNRELSIGS */
check_window_size(0);
#ifndef SIGVOID
return (snum);
#endif
}
#endif /* SIG_WINDOW */
void
ed_set_tty_eight_bit()
{
if (tty_getty(SHTTY, &extty) == -1) {
#ifdef DEBUG_TTY
xprintf("ed_set_tty_eight_bit: tty_getty: %s\n", strerror(errno));
#endif /* DEBUG_TTY */
return;
}
Tty_eight_bit = tty_geteightbit(&extty);
}
int
ed_Setup(rst)
int rst;
{
static int havesetup = 0;
struct varent *imode;
if (havesetup) /* if we have never been called */
return(0);
#if defined(POSIX) && defined(_PC_VDISABLE) && !defined(BSD4_4) && \
!defined(WINNT_NATIVE)
{
long pcret;
if ((pcret = fpathconf(SHTTY, _PC_VDISABLE)) == -1L)
vdisable = (unsigned char) _POSIX_VDISABLE;
else
vdisable = (unsigned char) pcret;
if (vdisable != (unsigned char) _POSIX_VDISABLE && rst != 0)
for (rst = 0; rst < C_NCC; rst++) {
if (ttychars[ED_IO][rst] == (unsigned char) _POSIX_VDISABLE)
ttychars[ED_IO][rst] = vdisable;
if (ttychars[EX_IO][rst] == (unsigned char) _POSIX_VDISABLE)
ttychars[EX_IO][rst] = vdisable;
}
}
#else /* ! POSIX || !_PC_VDISABLE || BSD4_4 || WINNT_NATIVE */
vdisable = (unsigned char) _POSIX_VDISABLE;
#endif /* POSIX && _PC_VDISABLE && !BSD4_4 && !WINNT_NATIVE */
if ((imode = adrof(STRinputmode)) != NULL) {
if (!Strcmp(*(imode->vec), STRinsert))
inputmode = MODE_INSERT;
else if (!Strcmp(*(imode->vec), STRoverwrite))
inputmode = MODE_REPLACE;
}
else
inputmode = MODE_INSERT;
ed_InitMaps();
Hist_num = 0;
Expand = 0;
#ifndef WINNT_NATIVE
if (tty_getty(SHTTY, &extty) == -1) {
# ifdef DEBUG_TTY
xprintf("ed_Setup: tty_getty: %s\n", strerror(errno));
# endif /* DEBUG_TTY */
return(-1);
}
tstty = edtty = extty;
T_Speed = tty_getspeed(&extty);
T_Tabs = tty_gettabs(&extty);
Tty_eight_bit = tty_geteightbit(&extty);
# if defined(POSIX) || defined(TERMIO)
extty.d_t.c_iflag &= ~ttylist[EX_IO][M_INPUT].t_clrmask;
extty.d_t.c_iflag |= ttylist[EX_IO][M_INPUT].t_setmask;
extty.d_t.c_oflag &= ~ttylist[EX_IO][M_OUTPUT].t_clrmask;
extty.d_t.c_oflag |= ttylist[EX_IO][M_OUTPUT].t_setmask;
extty.d_t.c_cflag &= ~ttylist[EX_IO][M_CONTROL].t_clrmask;
extty.d_t.c_cflag |= ttylist[EX_IO][M_CONTROL].t_setmask;
extty.d_t.c_lflag &= ~ttylist[EX_IO][M_LINED].t_clrmask;
extty.d_t.c_lflag |= ttylist[EX_IO][M_LINED].t_setmask;
# if defined(IRIX3_3) && SYSVREL < 4
extty.d_t.c_line = NTTYDISC;
# endif /* IRIX3_3 && SYSVREL < 4 */
# else /* GSTTY */ /* V7, Berkeley style tty */
if (T_Tabs) { /* order of &= and |= is important to XTABS */
extty.d_t.sg_flags &= ~(ttylist[EX_IO][M_CONTROL].t_clrmask|XTABS);
extty.d_t.sg_flags |= ttylist[EX_IO][M_CONTROL].t_setmask;
}
else {
extty.d_t.sg_flags &= ~ttylist[EX_IO][M_CONTROL].t_clrmask;
extty.d_t.sg_flags |= (ttylist[EX_IO][M_CONTROL].t_setmask|XTABS);
}
extty.d_lb &= ~ttylist[EX_IO][M_LOCAL].t_clrmask;
extty.d_lb |= ttylist[EX_IO][M_LOCAL].t_setmask;
# endif /* GSTTY */
/*
* Reset the tty chars to reasonable defaults
* If they are disabled, then enable them.
*/
if (rst) {
if (tty_cooked_mode(&tstty)) {
tty_getchar(&tstty, ttychars[TS_IO]);
/*
* Don't affect CMIN and CTIME for the editor mode
*/
for (rst = 0; rst < C_NCC - 2; rst++)
if (ttychars[TS_IO][rst] != vdisable &&
ttychars[ED_IO][rst] != vdisable)
ttychars[ED_IO][rst] = ttychars[TS_IO][rst];
for (rst = 0; rst < C_NCC; rst++)
if (ttychars[TS_IO][rst] != vdisable &&
ttychars[EX_IO][rst] != vdisable)
ttychars[EX_IO][rst] = ttychars[TS_IO][rst];
}
tty_setchar(&extty, ttychars[EX_IO]);
if (tty_setty(SHTTY, &extty) == -1) {
# ifdef DEBUG_TTY
xprintf("ed_Setup: tty_setty: %s\n", strerror(errno));
# endif /* DEBUG_TTY */
return(-1);
}
}
else
tty_setchar(&extty, ttychars[EX_IO]);
# ifdef SIG_WINDOW
(void) sigset(SIG_WINDOW, window_change); /* for window systems */
# endif
#else /* WINNT_NATIVE */
# ifdef DEBUG
if (rst)
xprintf("rst received in ed_Setup() %d\n", rst);
# endif
#endif /* WINNT_NATIVE */
havesetup = 1;
return(0);
}
void
ed_Init()
{
ResetInLine(1); /* reset the input pointers */
GettingInput = 0; /* just in case */
LastKill = KillBuf; /* no kill buffer */
#ifdef DEBUG_EDIT
CheckMaps(); /* do a little error checking on key maps */
#endif
if (ed_Setup(0) == -1)
return;
/*
* if we have been called before but GotTermCaps isn't set, our TERM has
* changed, so get new termcaps and try again
*/
if (!GotTermCaps)
GetTermCaps(); /* does the obvious, but gets term type each
* time */
#ifndef WINNT_NATIVE
# if defined(TERMIO) || defined(POSIX)
edtty.d_t.c_iflag &= ~ttylist[ED_IO][M_INPUT].t_clrmask;
edtty.d_t.c_iflag |= ttylist[ED_IO][M_INPUT].t_setmask;
edtty.d_t.c_oflag &= ~ttylist[ED_IO][M_OUTPUT].t_clrmask;
edtty.d_t.c_oflag |= ttylist[ED_IO][M_OUTPUT].t_setmask;
edtty.d_t.c_cflag &= ~ttylist[ED_IO][M_CONTROL].t_clrmask;
edtty.d_t.c_cflag |= ttylist[ED_IO][M_CONTROL].t_setmask;
edtty.d_t.c_lflag &= ~ttylist[ED_IO][M_LINED].t_clrmask;
edtty.d_t.c_lflag |= ttylist[ED_IO][M_LINED].t_setmask;
# if defined(IRIX3_3) && SYSVREL < 4
edtty.d_t.c_line = NTTYDISC;
# endif /* IRIX3_3 && SYSVREL < 4 */
# else /* GSTTY */
if (T_Tabs) { /* order of &= and |= is important to XTABS */
edtty.d_t.sg_flags &= ~(ttylist[ED_IO][M_CONTROL].t_clrmask | XTABS);
edtty.d_t.sg_flags |= ttylist[ED_IO][M_CONTROL].t_setmask;
}
else {
edtty.d_t.sg_flags &= ~ttylist[ED_IO][M_CONTROL].t_clrmask;
edtty.d_t.sg_flags |= (ttylist[ED_IO][M_CONTROL].t_setmask | XTABS);
}
edtty.d_lb &= ~ttylist[ED_IO][M_LOCAL].t_clrmask;
edtty.d_lb |= ttylist[ED_IO][M_LOCAL].t_setmask;
# endif /* POSIX || TERMIO */
tty_setchar(&edtty, ttychars[ED_IO]);
#endif /* WINNT_NATIVE */
}
/*
* Check and re-init the line. set the terminal into 1 char at a time mode.
*/
int
Rawmode()
{
if (Tty_raw_mode)
return (0);
#ifdef WINNT_NATIVE
do_nt_raw_mode();
#else /* !WINNT_NATIVE */
# ifdef _IBMR2
tty_setdisc(SHTTY, ED_IO);
# endif /* _IBMR2 */
if (tty_getty(SHTTY, &tstty) == -1) {
# ifdef DEBUG_TTY
xprintf("Rawmode: tty_getty: %s\n", strerror(errno));
# endif /* DEBUG_TTY */
return(-1);
}
/*
* We always keep up with the eight bit setting and the speed of the
* tty. But only we only believe changes that are made to cooked mode!
*/
# if defined(POSIX) || defined(TERMIO)
Tty_eight_bit = tty_geteightbit(&tstty);
T_Speed = tty_getspeed(&tstty);
# ifdef POSIX
/*
* Fix from: Steven (Steve) B. Green <xrsbg@charney.gsfc.nasa.gov>
* Speed was not being set up correctly under POSIX.
*/
if (tty_getspeed(&extty) != T_Speed || tty_getspeed(&edtty) != T_Speed) {
(void) cfsetispeed(&extty.d_t, T_Speed);
(void) cfsetospeed(&extty.d_t, T_Speed);
(void) cfsetispeed(&edtty.d_t, T_Speed);
(void) cfsetospeed(&edtty.d_t, T_Speed);
}
# endif /* POSIX */
# else /* GSTTY */
T_Speed = tty_getspeed(&tstty);
Tty_eight_bit = tty_geteightbit(&tstty);
if (extty.d_t.sg_ispeed != tstty.d_t.sg_ispeed) {
extty.d_t.sg_ispeed = tstty.d_t.sg_ispeed;
edtty.d_t.sg_ispeed = tstty.d_t.sg_ispeed;
}
if (extty.d_t.sg_ospeed != tstty.d_t.sg_ospeed) {
extty.d_t.sg_ospeed = tstty.d_t.sg_ospeed;
edtty.d_t.sg_ospeed = tstty.d_t.sg_ospeed;
}
# endif /* POSIX || TERMIO */
if (tty_cooked_mode(&tstty)) {
/*
* re-test for some things here (like maybe the user typed
* "stty -tabs"
*/
if (tty_gettabs(&tstty) == 0)
T_Tabs = 0;
else
T_Tabs = CanWeTab();
# if defined(POSIX) || defined(TERMIO)
extty.d_t.c_cflag = tstty.d_t.c_cflag;
extty.d_t.c_cflag &= ~ttylist[EX_IO][M_CONTROL].t_clrmask;
extty.d_t.c_cflag |= ttylist[EX_IO][M_CONTROL].t_setmask;
edtty.d_t.c_cflag = tstty.d_t.c_cflag;
edtty.d_t.c_cflag &= ~ttylist[ED_IO][M_CONTROL].t_clrmask;
edtty.d_t.c_cflag |= ttylist[ED_IO][M_CONTROL].t_setmask;
extty.d_t.c_lflag = tstty.d_t.c_lflag;
extty.d_t.c_lflag &= ~ttylist[EX_IO][M_LINED].t_clrmask;
extty.d_t.c_lflag |= ttylist[EX_IO][M_LINED].t_setmask;
edtty.d_t.c_lflag = tstty.d_t.c_lflag;
edtty.d_t.c_lflag &= ~ttylist[ED_IO][M_LINED].t_clrmask;
edtty.d_t.c_lflag |= ttylist[ED_IO][M_LINED].t_setmask;
extty.d_t.c_iflag = tstty.d_t.c_iflag;
extty.d_t.c_iflag &= ~ttylist[EX_IO][M_INPUT].t_clrmask;
extty.d_t.c_iflag |= ttylist[EX_IO][M_INPUT].t_setmask;
edtty.d_t.c_iflag = tstty.d_t.c_iflag;
edtty.d_t.c_iflag &= ~ttylist[ED_IO][M_INPUT].t_clrmask;
edtty.d_t.c_iflag |= ttylist[ED_IO][M_INPUT].t_setmask;
extty.d_t.c_oflag = tstty.d_t.c_oflag;
extty.d_t.c_oflag &= ~ttylist[EX_IO][M_OUTPUT].t_clrmask;
extty.d_t.c_oflag |= ttylist[EX_IO][M_OUTPUT].t_setmask;
edtty.d_t.c_oflag = tstty.d_t.c_oflag;
edtty.d_t.c_oflag &= ~ttylist[ED_IO][M_OUTPUT].t_clrmask;
edtty.d_t.c_oflag |= ttylist[ED_IO][M_OUTPUT].t_setmask;
# else /* GSTTY */
extty.d_t.sg_flags = tstty.d_t.sg_flags;
extty.d_t.sg_flags &= ~ttylist[EX_IO][M_CONTROL].t_clrmask;
extty.d_t.sg_flags |= ttylist[EX_IO][M_CONTROL].t_setmask;
if (T_Tabs) /* order of &= and |= is important to XTABS */
extty.d_t.sg_flags &= ~XTABS;
else
extty.d_t.sg_flags |= XTABS;
extty.d_lb = tstty.d_lb;
extty.d_lb &= ~ttylist[EX_IO][M_LOCAL].t_clrmask;
extty.d_lb |= ttylist[EX_IO][M_LOCAL].t_setmask;
edtty.d_t.sg_flags = extty.d_t.sg_flags;
if (T_Tabs) { /* order of &= and |= is important to XTABS */
edtty.d_t.sg_flags &=
~(ttylist[ED_IO][M_CONTROL].t_clrmask|XTABS);
edtty.d_t.sg_flags |= ttylist[ED_IO][M_CONTROL].t_setmask;
}
else {
edtty.d_t.sg_flags &= ~ttylist[ED_IO][M_CONTROL].t_clrmask;
edtty.d_t.sg_flags |=
(ttylist[ED_IO][M_CONTROL].t_setmask|XTABS);
}
edtty.d_lb = tstty.d_lb;
edtty.d_lb &= ~ttylist[ED_IO][M_LOCAL].t_clrmask;
edtty.d_lb |= ttylist[ED_IO][M_LOCAL].t_setmask;
# endif /* TERMIO || POSIX */
{
extern int didsetty;
int i;
tty_getchar(&tstty, ttychars[TS_IO]);
/*
* Check if the user made any changes.
* If he did, then propagate the changes to the
* edit and execute data structures.
*/
for (i = 0; i < C_NCC; i++)
if (ttychars[TS_IO][i] != ttychars[EX_IO][i])
break;
if (i != C_NCC || didsetty) {
didsetty = 0;
/*
* Propagate changes only to the unprotected chars
* that have been modified just now.
*/
for (i = 0; i < C_NCC; i++) {
if (!((ttylist[ED_IO][M_CHAR].t_setmask & C_SH(i))) &&
(ttychars[TS_IO][i] != ttychars[EX_IO][i]))
ttychars[ED_IO][i] = ttychars[TS_IO][i];
if (ttylist[ED_IO][M_CHAR].t_clrmask & C_SH(i))
ttychars[ED_IO][i] = vdisable;
}
tty_setchar(&edtty, ttychars[ED_IO]);
for (i = 0; i < C_NCC; i++) {
if (!((ttylist[EX_IO][M_CHAR].t_setmask & C_SH(i))) &&
(ttychars[TS_IO][i] != ttychars[EX_IO][i]))
ttychars[EX_IO][i] = ttychars[TS_IO][i];
if (ttylist[EX_IO][M_CHAR].t_clrmask & C_SH(i))
ttychars[EX_IO][i] = vdisable;
}
tty_setchar(&extty, ttychars[EX_IO]);
}
}
}
if (tty_setty(SHTTY, &edtty) == -1) {
# ifdef DEBUG_TTY
xprintf("Rawmode: tty_setty: %s\n", strerror(errno));
# endif /* DEBUG_TTY */
return(-1);
}
#endif /* WINNT_NATIVE */
Tty_raw_mode = 1;
flush(); /* flush any buffered output */
return (0);
}
int
Cookedmode()
{ /* set tty in normal setup */
#ifdef WINNT_NATIVE
do_nt_cooked_mode();
#else
signalfun_t orig_intr;
# ifdef _IBMR2
tty_setdisc(SHTTY, EX_IO);
# endif /* _IBMR2 */
if (!Tty_raw_mode)
return (0);
/* hold this for reseting tty */
# ifdef BSDSIGS
orig_intr = (signalfun_t) signal(SIGINT, SIG_IGN);
# else
# ifdef SIG_HOLD
/*
* sigset doesn't return the previous handler if the signal is held,
* it will return SIG_HOLD instead. So instead of restoring the
* the signal we would end up installing a blocked SIGINT with a
* SIG_IGN signal handler. This is what happened when Cookedmode
* was called from sched_run, disabling interrupt for the rest
* of your session.
*
* This is what we do:
* - if the signal is blocked, keep it that way
* - else set it to SIG_IGN
*
* Casper Dik (casper@fwi.uva.nl)
*/
orig_intr = (signalfun_t) sigset(SIGINT, SIG_HOLD);
if (orig_intr != SIG_HOLD)
(void) sigset(SIGINT, SIG_IGN); /* returns SIG_HOLD */
# else /* !SIG_HOLD */
/*
* No SIG_HOLD; probably no reliable signals as well.
*/
orig_intr = (signalfun_t) sigset(SIGINT, SIG_IGN);
# endif /* SIG_HOLD */
# endif /* BSDSIGS */
if (tty_setty(SHTTY, &extty) == -1) {
# ifdef DEBUG_TTY
xprintf("Cookedmode: tty_setty: %s\n", strerror(errno));
# endif /* DEBUG_TTY */
return -1;
}
# ifdef BSDSIGS
(void) signal(SIGINT, orig_intr); /* take these again */
# else
(void) sigset(SIGINT, orig_intr); /* take these again */
# endif /* BSDSIGS */
#endif /* WINNT_NATIVE */
Tty_raw_mode = 0;
return (0);
}
void
ResetInLine(macro)
int macro;
{
Cursor = InputBuf; /* reset cursor */
LastChar = InputBuf;
InputLim = &InputBuf[INBUFSIZE - 2];
Mark = InputBuf;
MetaNext = 0;
CurrentKeyMap = CcKeyMap;
AltKeyMap = 0;
Hist_num = 0;
DoingArg = 0;
Argument = 1;
#ifdef notdef
LastKill = KillBuf; /* no kill buffer */
#endif
LastCmd = F_UNASSIGNED; /* previous command executed */
if (macro)
MacroLvl = -1; /* no currently active macros */
}
static Char *Input_Line = NULL;
int
Load_input_line()
{
#ifdef SUNOS4
long chrs = 0;
#else /* !SUNOS4 */
/*
* *Everyone* else has an int, but SunOS wants long!
* This breaks where int != long (alpha)
*/
int chrs = 0;
#endif /* SUNOS4 */
if (Input_Line)
xfree((ptr_t) Input_Line);
Input_Line = NULL;
if (Tty_raw_mode)
return 0;
#if defined(FIONREAD) && !defined(OREO)
(void) ioctl(SHIN, FIONREAD, (ioctl_t) &chrs);
if (chrs > 0) {
char buf[BUFSIZE];
chrs = read(SHIN, buf, (size_t) min(chrs, BUFSIZE - 1));
if (chrs > 0) {
buf[chrs] = '\0';
Input_Line = Strsave(str2short(buf));
PushMacro(Input_Line);
}
#ifdef convex
/* need to print errno message in case file is migrated */
if (chrs < 0)
stderror(ERR_SYSTEM, progname, strerror(errno));
#endif
}
#endif /* FIONREAD && !OREO */
return chrs > 0;
}
/*
* Bugfix (in Swedish) by:
* Johan Widen
* SICS, PO Box 1263, S-163 13 SPANGA, SWEDEN
* {mcvax,munnari,cernvax,diku,inria,prlb2,penet,ukc,unido}!enea!sics.se!jw
* Internet: jw@sics.se
*
* (via Hans J Albertsson (thanks))
*/
void
QuoteModeOn()
{
if (MacroLvl >= 0)
return;
#ifndef WINNT_NATIVE
qutty = edtty;
#if defined(TERMIO) || defined(POSIX)
qutty.d_t.c_iflag &= ~ttylist[QU_IO][M_INPUT].t_clrmask;
qutty.d_t.c_iflag |= ttylist[QU_IO][M_INPUT].t_setmask;
qutty.d_t.c_oflag &= ~ttylist[QU_IO][M_OUTPUT].t_clrmask;
qutty.d_t.c_oflag |= ttylist[QU_IO][M_OUTPUT].t_setmask;
qutty.d_t.c_cflag &= ~ttylist[QU_IO][M_CONTROL].t_clrmask;
qutty.d_t.c_cflag |= ttylist[QU_IO][M_CONTROL].t_setmask;
qutty.d_t.c_lflag &= ~ttylist[QU_IO][M_LINED].t_clrmask;
qutty.d_t.c_lflag |= ttylist[QU_IO][M_LINED].t_setmask;
#else /* GSTTY */
qutty.d_t.sg_flags &= ~ttylist[QU_IO][M_CONTROL].t_clrmask;
qutty.d_t.sg_flags |= ttylist[QU_IO][M_CONTROL].t_setmask;
qutty.d_lb &= ~ttylist[QU_IO][M_LOCAL].t_clrmask;
qutty.d_lb |= ttylist[QU_IO][M_LOCAL].t_setmask;
#endif /* TERMIO || POSIX */
if (tty_setty(SHTTY, &qutty) == -1) {
#ifdef DEBUG_TTY
xprintf("QuoteModeOn: tty_setty: %s\n", strerror(errno));
#endif /* DEBUG_TTY */
return;
}
#endif /* !WINNT_NATIVE */
Tty_quote_mode = 1;
return;
}
void
QuoteModeOff()
{
if (!Tty_quote_mode)
return;
Tty_quote_mode = 0;
if (tty_setty(SHTTY, &edtty) == -1) {
#ifdef DEBUG_TTY
xprintf("QuoteModeOff: tty_setty: %s\n", strerror(errno));
#endif /* DEBUG_TTY */
return;
}
return;
}
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