Source:NetHack 2.2a/topl.c

Below is the full text to topl.c from the source code of NetHack 2.2a.

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

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1.    /*	SCCS Id: @(#)topl.c	2.0	87/09/15
2.    /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
3.    
4.    #include <stdio.h>
5.    #include "hack.h"
6.    #ifdef GENIX
7.    #define	void	int	/* jhn - mod to prevent compiler from bombing */
8.    #endif
9.    
10.   extern char *eos();
11.   extern int CO;
12.   
13.   char toplines[BUFSIZ];
14.   xchar tlx, tly;			/* set by pline; used by addtopl */
15.   
16.   struct topl {
17.   	struct topl *next_topl;
18.   	char *topl_text;
19.   } *old_toplines, *last_redone_topl;
20.   #define	OTLMAX	20		/* max nr of old toplines remembered */
21.   
22.   doredotopl(){
23.   	if(last_redone_topl)
24.   		last_redone_topl = last_redone_topl->next_topl;
25.   	if(!last_redone_topl)
26.   		last_redone_topl = old_toplines;
27.   	if(last_redone_topl){
28.   		(void) strcpy(toplines, last_redone_topl->topl_text);
29.   	}
30.   	redotoplin();
31.   	return(0);
32.   }
33.   
34.   redotoplin() {
35.   	home();
36.   	if(index(toplines, '\n')) cl_end();
37.   	putstr(toplines);
38.   	cl_end();
39.   	tlx = curx;
40.   	tly = cury;
41.   	flags.toplin = 1;
42.   	if(tly > 1)
43.   		more();
44.   }
45.   
46.   remember_topl() {
47.   register struct topl *tl;
48.   register int cnt = OTLMAX;
49.   	if(last_redone_topl &&
50.   	   !strcmp(toplines, last_redone_topl->topl_text)) return;
51.   	if(old_toplines &&
52.   	   !strcmp(toplines, old_toplines->topl_text)) return;
53.   	last_redone_topl = 0;
54.   	tl = (struct topl *)
55.   		alloc((unsigned)(strlen(toplines) + sizeof(struct topl) + 1));
56.   	tl->next_topl = old_toplines;
57.   	tl->topl_text = (char *)(tl + 1);
58.   	(void) strcpy(tl->topl_text, toplines);
59.   	old_toplines = tl;
60.   	while(cnt && tl){
61.   		cnt--;
62.   		tl = tl->next_topl;
63.   	}
64.   	if(tl && tl->next_topl){
65.   		free((char *) tl->next_topl);
66.   		tl->next_topl = 0;
67.   	}
68.   }
69.   
70.   addtopl(s) char *s; {
71.   	curs(tlx,tly);
72.   	if(tlx + strlen(s) > CO) putsym('\n');
73.   	putstr(s);
74.   	tlx = curx;
75.   	tly = cury;
76.   	flags.toplin = 1;
77.   }
78.   
79.   xmore(s)
80.   char *s;	/* allowed chars besides space/return */
81.   {
82.   	if(flags.toplin) {
83.   		curs(tlx, tly);
84.   		if(tlx + 8 > CO) putsym('\n'), tly++;
85.   	}
86.   
87.   	if(flags.standout)
88.   		standoutbeg();
89.   	putstr("--More--");
90.   	if(flags.standout)
91.   		standoutend();
92.   
93.   	xwaitforspace(s);
94.   	if(flags.toplin && tly > 1) {
95.   		home();
96.   		cl_end();
97.   		docorner(1, tly-1);
98.   	}
99.   	flags.toplin = 0;
100.  }
101.  
102.  more(){
103.  	xmore("");
104.  }
105.  
106.  cmore(s)
107.  register char *s;
108.  {
109.  	xmore(s);
110.  }
111.  
112.  clrlin(){
113.  	if(flags.toplin) {
114.  		home();
115.  		cl_end();
116.  		if(tly > 1) docorner(1, tly-1);
117.  		remember_topl();
118.  	}
119.  	flags.toplin = 0;
120.  }
121.  
122.  /*VARARGS1*/
123.  /* Because the modified mstatusline has 9 arguments KAA */
124.  pline(line,arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9)
125.  register char *line,*arg1,*arg2,*arg3,*arg4,*arg5,*arg6,*arg7,*arg8,*arg9;
126.  {
127.  	char pbuf[BUFSZ];
128.  	register char *bp = pbuf, *tl;
129.  	register int n,n0;
130.  
131.  	if(!line || !*line) return;
132.  	if(!index(line, '%')) (void) strcpy(pbuf,line); else
133.  	(void) sprintf(pbuf,line,arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9);
134.  	if(flags.toplin == 1 && !strcmp(pbuf, toplines)) return;
135.  	nscr();		/* %% */
136.  
137.  	/* If there is room on the line, print message on same line */
138.  	/* But messages like "You die..." deserve their own line */
139.  	n0 = strlen(bp);
140.  	if(flags.toplin == 1 && tly == 1 &&
141.  	    n0 + strlen(toplines) + 3 < CO-8 &&  /* leave room for --More-- */
142.  	    strncmp(bp, "You ", 4)) {
143.  		(void) strcat(toplines, "  ");
144.  		(void) strcat(toplines, bp);
145.  		tlx += 2;
146.  		addtopl(bp);
147.  		return;
148.  	}
149.  	if(flags.toplin == 1) more();
150.  	remember_topl();
151.  	toplines[0] = 0;
152.  	while(n0){
153.  		if(n0 >= CO){
154.  			/* look for appropriate cut point */
155.  			n0 = 0;
156.  			for(n = 0; n < CO; n++) if(bp[n] == ' ')
157.  				n0 = n;
158.  			if(!n0) for(n = 0; n < CO-1; n++)
159.  				if(!letter(bp[n])) n0 = n;
160.  			if(!n0) n0 = CO-2;
161.  		}
162.  		(void) strncpy((tl = eos(toplines)), bp, n0);
163.  		tl[n0] = 0;
164.  		bp += n0;
165.  
166.  		/* remove trailing spaces, but leave one */
167.  		while(n0 > 1 && tl[n0-1] == ' ' && tl[n0-2] == ' ')
168.  			tl[--n0] = 0;
169.  
170.  		n0 = strlen(bp);
171.  		if(n0 && tl[0]) (void) strcat(tl, "\n");
172.  	}
173.  	redotoplin();
174.  }
175.  
176.  putsym(c) char c; {
177.  	switch(c) {
178.  	case '\b':
179.  		backsp();
180.  		return;
181.  	case '\n':
182.  		curx = 1;
183.  		cury++;
184.  		if(cury > tly) tly = cury;
185.  		break;
186.  	default:
187.  		if(curx == CO)
188.  			putsym('\n');	/* 1 <= curx <= CO; avoid CO */
189.  		else
190.  			curx++;
191.  	}
192.  	(void) putchar(c);
193.  }
194.  
195.  putstr(s) register char *s; {
196.  	while(*s) putsym(*s++);
197.  }