OpenBSD-4.6/usr.bin/vi/cl/cl_bsd.c
/* $OpenBSD: cl_bsd.c,v 1.9 2006/03/11 06:58:00 ray Exp $ */
/*-
* Copyright (c) 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "@(#)cl_bsd.c 8.29 (Berkeley) 7/1/96";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/time.h>
#include <bitstring.h>
#include <ctype.h>
#include <curses.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include "../common/common.h"
#include "../vi/vi.h"
#include "cl.h"
#ifndef HAVE_CURSES_SETUPTERM
static char *ke; /* Keypad on. */
static char *ks; /* Keypad off. */
static char *vb; /* Visible bell string. */
#endif
/*
* HP's support the entire System V curses package except for the tigetstr
* and tigetnum functions. Ultrix supports the BSD curses package except
* for the idlok function. Cthulu only knows why. Break things up into a
* minimal set of functions.
*/
#ifndef HAVE_CURSES_ADDNSTR
/*
* addnstr --
*
* PUBLIC: #ifndef HAVE_CURSES_ADDNSTR
* PUBLIC: int addnstr(char *, int);
* PUBLIC: #endif
*/
int
addnstr(s, n)
char *s;
int n;
{
int ch;
while (n-- && (ch = *s++))
addch(ch);
return (OK);
}
#endif
#ifndef HAVE_CURSES_BEEP
/*
* beep --
*
* PUBLIC: #ifndef HAVE_CURSES_BEEP
* PUBLIC: void beep(void);
* PUBLIC: #endif
*/
void
beep()
{
(void)write(1, "\007", 1); /* '\a' */
}
#endif /* !HAVE_CURSES_BEEP */
#ifndef HAVE_CURSES_FLASH
/*
* flash --
* Flash the screen.
*
* PUBLIC: #ifndef HAVE_CURSES_FLASH
* PUBLIC: void flash(void);
* PUBLIC: #endif
*/
void
flash()
{
if (vb != NULL) {
(void)tputs(vb, 1, cl_putchar);
(void)fflush(stdout);
} else
beep();
}
#endif /* !HAVE_CURSES_FLASH */
#ifndef HAVE_CURSES_IDLOK
/*
* idlok --
* Turn on/off hardware line insert/delete.
*
* PUBLIC: #ifndef HAVE_CURSES_IDLOK
* PUBLIC: void idlok(WINDOW *, int);
* PUBLIC: #endif
*/
void
idlok(win, bf)
WINDOW *win;
int bf;
{
return;
}
#endif /* !HAVE_CURSES_IDLOK */
#ifndef HAVE_CURSES_KEYPAD
/*
* keypad --
* Put the keypad/cursor arrows into or out of application mode.
*
* PUBLIC: #ifndef HAVE_CURSES_KEYPAD
* PUBLIC: int keypad(void *, int);
* PUBLIC: #endif
*/
int
keypad(a, on)
void *a;
int on;
{
char *p;
if ((p = tigetstr(on ? "smkx" : "rmkx")) != (char *)-1) {
(void)tputs(p, 0, cl_putchar);
(void)fflush(stdout);
}
return (0);
}
#endif /* !HAVE_CURSES_KEYPAD */
#ifndef HAVE_CURSES_NEWTERM
/*
* newterm --
* Create a new curses screen.
*
* PUBLIC: #ifndef HAVE_CURSES_NEWTERM
* PUBLIC: void *newterm(const char *, FILE *, FILE *);
* PUBLIC: #endif
*/
void *
newterm(a, b, c)
const char *a;
FILE *b, *c;
{
return (initscr());
}
#endif /* !HAVE_CURSES_NEWTERM */
#ifndef HAVE_CURSES_SETUPTERM
/*
* setupterm --
* Set up terminal.
*
* PUBLIC: #ifndef HAVE_CURSES_SETUPTERM
* PUBLIC: void setupterm(char *, int, int *);
* PUBLIC: #endif
*/
void
setupterm(ttype, fno, errp)
char *ttype;
int fno, *errp;
{
static char buf[2048];
char *p;
if ((*errp = tgetent(buf, ttype)) > 0) {
if (ke != NULL)
free(ke);
ke = ((p = tigetstr("rmkx")) == (char *)-1) ?
NULL : strdup(p);
if (ks != NULL)
free(ks);
ks = ((p = tigetstr("smkx")) == (char *)-1) ?
NULL : strdup(p);
if (vb != NULL)
free(vb);
vb = ((p = tigetstr("flash")) == (char *)-1) ?
NULL : strdup(p);
}
}
#endif /* !HAVE_CURSES_SETUPTERM */
#ifndef HAVE_CURSES_TIGETSTR
/* Terminfo-to-termcap translation table. */
typedef struct _tl {
char *terminfo; /* Terminfo name. */
char *termcap; /* Termcap name. */
} TL;
static const TL list[] = {
"cols", "co", /* Terminal columns. */
"cup", "cm", /* Cursor up. */
"cuu1", "up", /* Cursor up. */
"el", "ce", /* Clear to end-of-line. */
"flash", "vb", /* Visible bell. */
"kcub1", "kl", /* Cursor left. */
"kcud1", "kd", /* Cursor down. */
"kcuf1", "kr", /* Cursor right. */
"kcuu1", "ku", /* Cursor up. */
"kdch1", "kD", /* Delete character. */
"kdl1", "kL", /* Delete line. */
"ked", "kS", /* Delete to end of screen. */
"kel", "kE", /* Delete to eol. */
"khome", "kh", /* Go to sol. */
"kich1", "kI", /* Insert at cursor. */
"kil1", "kA", /* Insert line. */
"kind", "kF", /* Scroll down. */
"kll", "kH", /* Go to eol. */
"knp", "kN", /* Page down. */
"kpp", "kP", /* Page up. */
"kri", "kR", /* Scroll up. */
"lines", "li", /* Terminal lines. */
"rmcup", "te", /* Terminal end string. */
"rmkx", "ke", /* Exit "keypad-transmit" mode. */
"rmso", "se", /* Standout end. */
"smcup", "ti", /* Terminal initialization string. */
"smkx", "ks", /* Enter "keypad-transmit" mode. */
"smso", "so", /* Standout begin. */
};
#ifdef _AIX
/*
* AIX's implementation for function keys greater than 10 is different and
* only goes as far as 36.
*/
static const char codes[] = {
/* 0-10 */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ';',
/* 11-20 */ '<', '>', '!', '@', '#', '$', '%', '^', '&', '*',
/* 21-30 */ '(', ')', '-', '_', '+', ',', ':', '?', '[', ']',
/* 31-36 */ '{', '}', '|', '~', '/', '='
};
#else
/*
* !!!
* Historically, the 4BSD termcap code didn't support functions keys greater
* than 9. This was silently enforced -- asking for key k12 would return the
* value for k1. We try and get around this by using the tables specified in
* the terminfo(TI_ENV) man page from the 3rd Edition SVID. This assumes the
* implementors of any System V compatibility code or an extended termcap used
* those codes.
*/
static const char codes[] = {
/* 0-10 */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ';',
/* 11-19 */ '1', '2', '3', '4', '5', '6', '7', '8', '9',
/* 20-63 */ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
};
#endif /* _AIX */
/*
* lcmp --
* list comparison routine for bsearch.
*/
static int
lcmp(a, b)
const void *a, *b;
{
return (strcmp(a, ((TL *)b)->terminfo));
}
/*
* tigetstr --
*
* Vendors put the prototype for tigetstr into random include files, including
* <term.h>, which we can't include because it makes other systems unhappy.
* Try and work around the problem, since we only care about the return value.
*
* PUBLIC: #ifdef HAVE_CURSES_TIGETSTR
* PUBLIC: char *tigetstr();
* PUBLIC: #else
* PUBLIC: char *tigetstr(char *);
* PUBLIC: #endif
*/
char *
tigetstr(name)
char *name;
{
static char sbuf[256];
TL *tlp;
int n;
char *p, keyname[3];
if ((tlp = bsearch(name,
list, sizeof(list) / sizeof(TL), sizeof(TL), lcmp)) == NULL) {
#ifdef _AIX
if (name[0] == 'k' &&
name[1] == 'f' && (n = atoi(name + 2)) <= 36) {
keyname[0] = 'k';
keyname[1] = codes[n];
keyname[2] = '\0';
#else
if (name[0] == 'k' &&
name[1] == 'f' && (n = atoi(name + 2)) <= 63) {
keyname[0] = n <= 10 ? 'k' : 'F';
keyname[1] = codes[n];
keyname[2] = '\0';
#endif
name = keyname;
}
} else
name = tlp->termcap;
p = sbuf;
#ifdef _AIX
return ((p = tgetstr(name, &p)) == NULL ? (char *)-1 : (strlcpy(sbuf, p, sizeof(sbuf)), sbuf));
#else
return (tgetstr(name, &p) == NULL ? (char *)-1 : sbuf);
#endif
}
/*
* tigetnum --
*
* PUBLIC: #ifndef HAVE_CURSES_TIGETSTR
* PUBLIC: int tigetnum(char *);
* PUBLIC: #endif
*/
int
tigetnum(name)
char *name;
{
TL *tlp;
int val;
if ((tlp = bsearch(name,
list, sizeof(list) / sizeof(TL), sizeof(TL), lcmp)) != NULL) {
name = tlp->termcap;
}
return ((val = tgetnum(name)) == -1 ? -2 : val);
}
#endif /* !HAVE_CURSES_TIGETSTR */