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Source:NetHack 2.2a/pctty.c

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Below is the full text to pctty.c from the source code of NetHack 2.2a. To link to a particular line, write [[NetHack 2.2a/pctty.c#line123]], for example.

Warning! This is the source code from an old release. For the latest release, see Source code

Screenshots and source code from Hack are used under the CWI license.
1.    /*	SCCS Id: @(#)pctty.c	2.1	87/11/09
2.    /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
3.    /* tty.c - (PC) version */
4.    
5.    /* With thanks to the people who sent code for SYSV - hpscdi!jon,
6.     * arnold@ucsf-cgl, wcs@bo95b, cbcephus!pds and others.
7.     */
8.    
9.    #include <stdio.h>
10.   #include "hack.h"
11.   #include "func_tab.h"
12.   
13.   static char erase_char, kill_char;
14.   
15.   /*
16.    * Get initial state of terminal, set ospeed (for termcap routines)
17.    * and switch off tab expansion if necessary.
18.    * Called by startup() in termcap.c and after returning from ! or ^Z
19.    */
20.   gettty(){
21.   	erase_char = '\b';
22.   	kill_char = 21;		/* cntl-U */
23.   	flags.cbreak = TRUE;
24.   #ifdef DGK
25.   	disable_ctrlP();	/* turn off ^P processing */
26.   #endif
27.   }
28.   
29.   /* reset terminal to original state */
30.   settty(s) char *s; {
31.   	end_screen();
32.   	if(s) printf(s);
33.   	(void) fflush(stdout);
34.   #ifdef DGK
35.   	enable_ctrlP();		/* turn on ^P processing */
36.   #endif
37.   }
38.   
39.   
40.   /* fatal error */
41.   /*VARARGS1*/
42.   error(s,x,y) char *s; {
43.   	end_screen();
44.   	putchar('\n');
45.   	printf(s,x,y);
46.   	putchar('\n');
47.   	exit(1);
48.   }
49.   
50.   /*
51.    * Read a line closed with '\n' into the array char bufp[BUFSZ].
52.    * (The '\n' is not stored. The string is closed with a '\0'.)
53.    * Reading can be interrupted by an escape ('\033') - now the
54.    * resulting string is "\033".
55.    */
56.   getlin(bufp)
57.   register char *bufp;
58.   {
59.   	register char *obufp = bufp;
60.   	register int c;
61.   
62.   	flags.toplin = 2;		/* nonempty, no --More-- required */
63.   	for(;;) {
64.   		(void) fflush(stdout);
65.   		if((c = getchar()) == EOF) {
66.   			*bufp = 0;
67.   			return;
68.   		}
69.   		if(c == '\033') {
70.   			*obufp = c;
71.   			obufp[1] = 0;
72.   			return;
73.   		}
74.   		if(c == erase_char || c == '\b') {
75.   			if(bufp != obufp) {
76.   				bufp--;
77.   				putstr("\b \b"); /* putsym converts \b */
78.   			} else	bell();
79.   		} else if(c == '\n') {
80.   			*bufp = 0;
81.   			return;
82.   		} else if(' ' <= c && c < '\177') {
83.   				/* avoid isprint() - some people don't have it
84.   				   ' ' is not always a printing char */
85.   			*bufp = c;
86.   			bufp[1] = 0;
87.   			putstr(bufp);
88.   			if(bufp-obufp < BUFSZ-1 && bufp-obufp < COLNO)
89.   				bufp++;
90.   		} else if(c == kill_char || c == '\177') { /* Robert Viduya */
91.   				/* this test last - @ might be the kill_char */
92.   			while(bufp != obufp) {
93.   				bufp--;
94.   				putstr("\b \b");
95.   			}
96.   		} else
97.   			bell();
98.   	}
99.   }
100.  
101.  getret() {
102.  	cgetret("");
103.  }
104.  
105.  cgetret(s)
106.  register char *s;
107.  {
108.  	putsym('\n');
109.  	if(flags.standout)
110.  		standoutbeg();
111.  	putstr("Hit ");
112.  	putstr(flags.cbreak ? "space" : "return");
113.  	putstr(" to continue: ");
114.  	if(flags.standout)
115.  		standoutend();
116.  	xwaitforspace(s);
117.  }
118.  
119.  char morc;	/* tell the outside world what char he used */
120.  
121.  xwaitforspace(s)
122.  register char *s;	/* chars allowed besides space or return */
123.  {
124.  register int c;
125.  
126.  	morc = 0;
127.  	while((c = readchar()) != '\n') {
128.  	    if(flags.cbreak) {
129.  		if(c == ' ') break;
130.  		if(s && index(s,c)) {
131.  			morc = c;
132.  			break;
133.  		}
134.  		bell();
135.  	    }
136.  	}
137.  }
138.  
139.  static int last_multi;
140.  
141.  char *
142.  parse()
143.  {
144.  	static char inline[COLNO];
145.  	register foo;
146.  
147.  	flags.move = 1;
148.  	if(!Invisible) curs_on_u(); else home();
149.  	multi = 0;
150.  #ifdef DGK
151.  	while((foo = readchar()) >= '0' && foo <= '9') {
152.  		multi = 10*multi+foo-'0';
153.  		if (multi < 0 || multi > LARGEST_INT)
154.  			multi = LARGEST_INT;
155.  		if (multi > 9) {
156.  			remember_topl();
157.  			home();
158.  			cl_end();
159.  			printf("Count: %d", multi);
160.  		}
161.  		last_multi = multi;
162.  	}
163.  # ifdef REDO
164.  	if (foo == DOAGAIN || in_doagain)
165.  		multi = last_multi;
166.  	else {
167.  		savech(0);	/* reset input queue */
168.  		savech(foo);
169.  	}
170.  # endif
171.  
172.  #else /* DGK */
173.  
174.  	while((foo = readchar()) >= '0' && foo <= '9')
175.  		multi = 10*multi+foo-'0';
176.  
177.  #endif /* DGK */
178.  
179.  	if(multi) {
180.  		multi--;
181.  		save_cm = inline;
182.  	}
183.  	inline[0] = foo;
184.  	inline[1] = 0;
185.  	if(foo == 'g' || foo == 'G'){
186.  		inline[1] = getchar();
187.  #ifdef REDO
188.  		savech(inline[1]);
189.  #endif
190.  		inline[2] = 0;
191.  	}
192.  	if(foo == 'm' || foo == 'M'){
193.  		inline[1] = getchar();
194.  #ifdef REDO
195.  		savech(inline[1]);
196.  #endif
197.  		inline[2] = 0;
198.  	}
199.  	clrlin();
200.  	return(inline);
201.  }
202.  
203.  char
204.  readchar() {
205.  	register int sym;
206.  
207.  	(void) fflush(stdout);
208.  	sym = getchar();
209.  	if(flags.toplin == 1)
210.  		flags.toplin = 2;
211.  	return((char) sym);
212.  }
213.  #ifdef COM_COMPL
214.  /* Read in an extended command - doing command line completion for
215.   * when enough character have been entered to make a unique command.
216.   * This is just a modified getlin().   -jsb
217.   */
218.  get_ext_cmd(bufp)
219.  register char *bufp;
220.  {
221.  	register char *obufp = bufp;
222.  	register int c;
223.  	int com_index, index;
224.  
225.  	flags.toplin = 2;		/* nonempty, no --More-- required */
226.  
227.  	for(;;) {
228.  		(void) fflush(stdout);
229.  		if((c = readchar()) == EOF) {
230.  			*bufp = 0;
231.  			return;
232.  		}
233.  		if(c == '\033') {
234.  			*obufp = c;
235.  			obufp[1] = 0;
236.  			return;
237.  		}
238.  		if(c == erase_char || c == '\b') {
239.  			if(bufp != obufp) {
240.  				bufp--;
241.  				putstr("\b \b"); /* putsym converts \b */
242.  			} else	bell();
243.  		} else if(c == '\n') {
244.  			*bufp = 0;
245.  			return;
246.  		} else if(' ' <= c && c < '\177') {
247.  				/* avoid isprint() - some people don't have it
248.  				   ' ' is not always a printing char */
249.  			*bufp = c;
250.  			bufp[1] = 0;
251.  			index = 0;
252.  			com_index = -1;
253.  
254.  			while(extcmdlist[index].ef_txt != (char *) 0){
255.  				if(!strncmp(obufp, extcmdlist[index].ef_txt,
256.  				strlen(obufp)))
257.  					if(com_index == -1) /* No matches yet*/
258.  					    com_index = index;
259.  					else /* More than 1 match */
260.  					    com_index = -2;
261.  				index++;
262.  			}
263.  			if(com_index >= 0){
264.  				strcpy(obufp,
265.  				extcmdlist[com_index].ef_txt);
266.  				/* finish print our string */
267.  				putstr(bufp);
268.  				bufp = obufp; /* reset it */
269.  				if(strlen(obufp) < BUFSIZ-1 &&
270.  				 strlen(obufp) < COLNO)
271.  					/* set bufp at the end of our
272.  					 * string
273.  					 */
274.  					bufp += strlen(obufp);
275.  			} else {
276.  				putstr(bufp);
277.  				if(bufp-obufp < BUFSZ-1 && bufp-obufp < COLNO)
278.  					bufp++;
279.  			}
280.  		} else if(c == kill_char || c == '\177') { /* Robert Viduya */
281.  				/* this test last - @ might be the kill_char */
282.  			while(bufp != obufp) {
283.  				bufp--;
284.  				putstr("\b \b");
285.  			}
286.  		} else
287.  			bell();
288.  	}
289.  
290.  }
291.  #endif COM_COMPL

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