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Usenet 1994 October
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nethack2.3
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part12
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pctty.c
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C/C++ Source or Header
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1988-10-17
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6KB
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294 lines
/* SCCS Id: @(#)pctty.c 2.3 87/12/12
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* tty.c - (PC) version */
/* With thanks to the people who sent code for SYSV - hpscdi!jon,
* arnold@ucsf-cgl, wcs@bo95b, cbcephus!pds and others.
*/
#include <stdio.h>
#include "hack.h"
#include "func_tab.h"
extern void savech();
static char erase_char, kill_char;
/*
* Get initial state of terminal, set ospeed (for termcap routines)
* and switch off tab expansion if necessary.
* Called by startup() in termcap.c and after returning from ! or ^Z
*/
gettty(){
erase_char = '\b';
kill_char = 21; /* cntl-U */
flags.cbreak = TRUE;
#ifdef DGK
disable_ctrlP(); /* turn off ^P processing */
#endif
}
/* reset terminal to original state */
settty(s) char *s; {
end_screen();
if(s) printf(s);
(void) fflush(stdout);
#ifdef DGK
enable_ctrlP(); /* turn on ^P processing */
#endif
}
/* fatal error */
/*VARARGS1*/
error(s,x,y) char *s; {
end_screen();
putchar('\n');
printf(s,x,y);
putchar('\n');
exit(1);
}
/*
* Read a line closed with '\n' into the array char bufp[BUFSZ].
* (The '\n' is not stored. The string is closed with a '\0'.)
* Reading can be interrupted by an escape ('\033') - now the
* resulting string is "\033".
*/
getlin(bufp)
register char *bufp;
{
register char *obufp = bufp;
register int c;
flags.toplin = 2; /* nonempty, no --More-- required */
for(;;) {
(void) fflush(stdout);
if((c = getchar()) == EOF) {
*bufp = 0;
return;
}
if(c == '\033') {
*obufp = c;
obufp[1] = 0;
return;
}
if(c == erase_char || c == '\b') {
if(bufp != obufp) {
bufp--;
putstr("\b \b"); /* putsym converts \b */
} else bell();
} else if(c == '\n') {
*bufp = 0;
return;
} else if(' ' <= c && c < '\177') {
/* avoid isprint() - some people don't have it
' ' is not always a printing char */
*bufp = c;
bufp[1] = 0;
putstr(bufp);
if(bufp-obufp < BUFSZ-1 && bufp-obufp < COLNO)
bufp++;
} else if(c == kill_char || c == '\177') { /* Robert Viduya */
/* this test last - @ might be the kill_char */
while(bufp != obufp) {
bufp--;
putstr("\b \b");
}
} else
bell();
}
}
getret() {
cgetret("");
}
cgetret(s)
register char *s;
{
putsym('\n');
if(flags.standout)
standoutbeg();
putstr("Hit ");
putstr(flags.cbreak ? "space" : "return");
putstr(" to continue: ");
if(flags.standout)
standoutend();
xwaitforspace(s);
}
char morc; /* tell the outside world what char he used */
xwaitforspace(s)
register char *s; /* chars allowed besides space or return */
{
register int c;
morc = 0;
while((c = readchar()) != '\n') {
if(flags.cbreak) {
if(c == ' ') break;
if(s && index(s,c)) {
morc = c;
break;
}
bell();
}
}
}
static int last_multi;
char *
parse()
{
static char inline[COLNO];
register foo;
flags.move = 1;
if(!Invisible) curs_on_u(); else home();
multi = 0;
#ifdef DGK
while((foo = readchar()) >= '0' && foo <= '9') {
multi = 10*multi+foo-'0';
if (multi < 0 || multi > LARGEST_INT)
multi = LARGEST_INT;
if (multi > 9) {
remember_topl();
home();
cl_end();
printf("Count: %d", multi);
}
last_multi = multi;
}
# ifdef REDO
if (foo == DOAGAIN || in_doagain)
multi = last_multi;
else {
savech(0); /* reset input queue */
savech(foo);
}
# endif
#else /* DGK */
while((foo = readchar()) >= '0' && foo <= '9')
multi = 10*multi+foo-'0';
#endif /* DGK */
if(multi) {
multi--;
save_cm = inline;
}
inline[0] = foo;
inline[1] = 0;
if(foo == 'g' || foo == 'G'){
inline[1] = getchar();
#ifdef REDO
savech(inline[1]);
#endif
inline[2] = 0;
}
if(foo == 'm' || foo == 'M'){
inline[1] = getchar();
#ifdef REDO
savech(inline[1]);
#endif
inline[2] = 0;
}
clrlin();
return(inline);
}
char
readchar() {
register int sym;
(void) fflush(stdout);
sym = getchar();
if(flags.toplin == 1)
flags.toplin = 2;
return((char) sym);
}
#ifdef COM_COMPL
/* Read in an extended command - doing command line completion for
* when enough character have been entered to make a unique command.
* This is just a modified getlin(). -jsb
*/
get_ext_cmd(bufp)
register char *bufp;
{
register char *obufp = bufp;
register int c;
int com_index, index;
flags.toplin = 2; /* nonempty, no --More-- required */
for(;;) {
(void) fflush(stdout);
if((c = readchar()) == EOF) {
*bufp = 0;
return;
}
if(c == '\033') {
*obufp = c;
obufp[1] = 0;
return;
}
if(c == erase_char || c == '\b') {
if(bufp != obufp) {
bufp--;
putstr("\b \b"); /* putsym converts \b */
} else bell();
} else if(c == '\n') {
*bufp = 0;
return;
} else if(' ' <= c && c < '\177') {
/* avoid isprint() - some people don't have it
' ' is not always a printing char */
*bufp = c;
bufp[1] = 0;
index = 0;
com_index = -1;
while(extcmdlist[index].ef_txt != (char *) 0){
if(!strncmp(obufp, extcmdlist[index].ef_txt,
strlen(obufp)))
if(com_index == -1) /* No matches yet*/
com_index = index;
else /* More than 1 match */
com_index = -2;
index++;
}
if(com_index >= 0){
strcpy(obufp,
extcmdlist[com_index].ef_txt);
/* finish print our string */
putstr(bufp);
bufp = obufp; /* reset it */
if(strlen(obufp) < BUFSIZ-1 &&
strlen(obufp) < COLNO)
/* set bufp at the end of our
* string
*/
bufp += strlen(obufp);
} else {
putstr(bufp);
if(bufp-obufp < BUFSZ-1 && bufp-obufp < COLNO)
bufp++;
}
} else if(c == kill_char || c == '\177') { /* Robert Viduya */
/* this test last - @ might be the kill_char */
while(bufp != obufp) {
bufp--;
putstr("\b \b");
}
} else
bell();
}
}
#endif /* COM_COMPL /* */