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Diffstat (limited to 'contrib/nvi/cl/cl_bsd.c')
| -rw-r--r-- | contrib/nvi/cl/cl_bsd.c | 345 |
1 files changed, 345 insertions, 0 deletions
diff --git a/contrib/nvi/cl/cl_bsd.c b/contrib/nvi/cl/cl_bsd.c new file mode 100644 index 0000000..4a06a54 --- /dev/null +++ b/contrib/nvi/cl/cl_bsd.c @@ -0,0 +1,345 @@ +/*- + * 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" + +static char *ke; /* Keypad on. */ +static char *ks; /* Keypad off. */ +static char *vb; /* Visible bell string. */ + +/* + * 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 __P((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 __P((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 __P((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 __P((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 __P((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 __P((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 __P((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 __P((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 : strcpy(sbuf, p)); +#else + return (tgetstr(name, &p) == NULL ? (char *)-1 : sbuf); +#endif +} + +/* + * tigetnum -- + * + * PUBLIC: #ifndef HAVE_CURSES_TIGETSTR + * PUBLIC: int tigetnum __P((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 */ |
