1 84b1cb73 2003-09-30 devnull #include <u.h>
  2 84b1cb73 2003-09-30 devnull #include <libc.h>
  3 84b1cb73 2003-09-30 devnull #include <draw.h>
  4 84b1cb73 2003-09-30 devnull #include <thread.h>
  5 84b1cb73 2003-09-30 devnull #include <mouse.h>
  6 84b1cb73 2003-09-30 devnull #include <cursor.h>
  7 84b1cb73 2003-09-30 devnull #include <keyboard.h>
  8 84b1cb73 2003-09-30 devnull #include <frame.h>
  9 84b1cb73 2003-09-30 devnull #include "flayer.h"
 10 84b1cb73 2003-09-30 devnull #include "samterm.h"
 11 84b1cb73 2003-09-30 devnull 
 12 84b1cb73 2003-09-30 devnull Text	cmd;
 13 84b1cb73 2003-09-30 devnull Rune	*scratch;
 14 84b1cb73 2003-09-30 devnull long	nscralloc;
 15 84b1cb73 2003-09-30 devnull Cursor	*cursor;
 16 84b1cb73 2003-09-30 devnull Flayer	*which = 0;
 17 84b1cb73 2003-09-30 devnull Flayer	*work = 0;
 18 84b1cb73 2003-09-30 devnull long	snarflen;
 19 84b1cb73 2003-09-30 devnull long	typestart = -1;
 20 84b1cb73 2003-09-30 devnull long	typeend = -1;
 21 84b1cb73 2003-09-30 devnull long	typeesc = -1;
 22 84b1cb73 2003-09-30 devnull long	modified = 0;		/* strange lookahead for menus */
 23 84b1cb73 2003-09-30 devnull char	hostlock = 1;
 24 84b1cb73 2003-09-30 devnull char	hasunlocked = 0;
 25 84b1cb73 2003-09-30 devnull int	maxtab = 8;
 26 17ab31aa 2005-01-27 devnull int	chord;
 27 17ab31aa 2005-01-27 devnull int	autoindent;
 28 84b1cb73 2003-09-30 devnull 
 29 6bc22c7d 2005-01-30 devnull #define chording 0	/* code here for reference but it causes deadlocks */
 30 6bc22c7d 2005-01-30 devnull 
 31 84b1cb73 2003-09-30 devnull void
 32 84b1cb73 2003-09-30 devnull threadmain(int argc, char *argv[])
 33 84b1cb73 2003-09-30 devnull {
 34 17ab31aa 2005-01-27 devnull 	int i, got, scr, w;
 35 84b1cb73 2003-09-30 devnull 	Text *t;
 36 84b1cb73 2003-09-30 devnull 	Rectangle r;
 37 84b1cb73 2003-09-30 devnull 	Flayer *nwhich;
 38 941c9f36 2003-10-11 devnull 
 39 941c9f36 2003-10-11 devnull 	/*
 40 941c9f36 2003-10-11 devnull 	 * sam is talking to us on fd 0 and 1.
 41 941c9f36 2003-10-11 devnull 	 * move these elsewhere so that if we accidentally
 42 941c9f36 2003-10-11 devnull 	 * use 0 and 1 in other code, nothing bad happens.
 43 941c9f36 2003-10-11 devnull 	 */
 44 941c9f36 2003-10-11 devnull 	dup(0, 3);
 45 941c9f36 2003-10-11 devnull 	dup(1, 4);
 46 941c9f36 2003-10-11 devnull 	hostfd[0] = 3;
 47 941c9f36 2003-10-11 devnull 	hostfd[1] = 4;
 48 941c9f36 2003-10-11 devnull 	close(0);
 49 941c9f36 2003-10-11 devnull 	close(1);
 50 941c9f36 2003-10-11 devnull 	open("/dev/null", OREAD);
 51 a19ff5b2 2005-01-07 devnull 	if(open("/dev/tty", OWRITE) < 0)
 52 a19ff5b2 2005-01-07 devnull 		open("/dev/null", OWRITE);
 53 84b1cb73 2003-09-30 devnull 
 54 a19ff5b2 2005-01-07 devnull 	if(protodebug) print("getscreen\n");
 55 84b1cb73 2003-09-30 devnull 	getscreen(argc, argv);
 56 a19ff5b2 2005-01-07 devnull 	if(protodebug) print("iconinit\n");
 57 84b1cb73 2003-09-30 devnull 	iconinit();
 58 a19ff5b2 2005-01-07 devnull 	if(protodebug) print("initio\n");
 59 84b1cb73 2003-09-30 devnull 	initio();
 60 a19ff5b2 2005-01-07 devnull 	if(protodebug) print("scratch\n");
 61 84b1cb73 2003-09-30 devnull 	scratch = alloc(100*RUNESIZE);
 62 84b1cb73 2003-09-30 devnull 	nscralloc = 100;
 63 84b1cb73 2003-09-30 devnull 	r = screen->r;
 64 84b1cb73 2003-09-30 devnull 	r.max.y = r.min.y+Dy(r)/5;
 65 a19ff5b2 2005-01-07 devnull 	if(protodebug) print("flstart\n");
 66 84b1cb73 2003-09-30 devnull 	flstart(screen->clipr);
 67 84b1cb73 2003-09-30 devnull 	rinit(&cmd.rasp);
 68 84b1cb73 2003-09-30 devnull 	flnew(&cmd.l[0], gettext, 1, &cmd);
 69 84b1cb73 2003-09-30 devnull 	flinit(&cmd.l[0], r, font, cmdcols);
 70 84b1cb73 2003-09-30 devnull 	cmd.nwin = 1;
 71 84b1cb73 2003-09-30 devnull 	which = &cmd.l[0];
 72 84b1cb73 2003-09-30 devnull 	cmd.tag = Untagged;
 73 84b1cb73 2003-09-30 devnull 	outTs(Tversion, VERSION);
 74 84b1cb73 2003-09-30 devnull 	startnewfile(Tstartcmdfile, &cmd);
 75 84b1cb73 2003-09-30 devnull 
 76 84b1cb73 2003-09-30 devnull 	got = 0;
 77 a19ff5b2 2005-01-07 devnull 	if(protodebug) print("loop\n");
 78 84b1cb73 2003-09-30 devnull 	for(;;got = waitforio()){
 79 84b1cb73 2003-09-30 devnull 		if(hasunlocked && RESIZED())
 80 84b1cb73 2003-09-30 devnull 			resize();
 81 84b1cb73 2003-09-30 devnull 		if(got&(1<<RHost))
 82 84b1cb73 2003-09-30 devnull 			rcv();
 83 84b1cb73 2003-09-30 devnull 		if(got&(1<<RPlumb)){
 84 84b1cb73 2003-09-30 devnull 			for(i=0; cmd.l[i].textfn==0; i++)
 85 84b1cb73 2003-09-30 devnull 				;
 86 84b1cb73 2003-09-30 devnull 			current(&cmd.l[i]);
 87 84b1cb73 2003-09-30 devnull 			flsetselect(which, cmd.rasp.nrunes, cmd.rasp.nrunes);
 88 84b1cb73 2003-09-30 devnull 			type(which, RPlumb);
 89 84b1cb73 2003-09-30 devnull 		}
 90 84b1cb73 2003-09-30 devnull 		if(got&(1<<RKeyboard))
 91 84b1cb73 2003-09-30 devnull 			if(which)
 92 84b1cb73 2003-09-30 devnull 				type(which, RKeyboard);
 93 84b1cb73 2003-09-30 devnull 			else
 94 84b1cb73 2003-09-30 devnull 				kbdblock();
 95 84b1cb73 2003-09-30 devnull 		if(got&(1<<RMouse)){
 96 84b1cb73 2003-09-30 devnull 			if(hostlock==2 || !ptinrect(mousep->xy, screen->r)){
 97 84b1cb73 2003-09-30 devnull 				mouseunblock();
 98 84b1cb73 2003-09-30 devnull 				continue;
 99 84b1cb73 2003-09-30 devnull 			}
100 84b1cb73 2003-09-30 devnull 			nwhich = flwhich(mousep->xy);
101 84b1cb73 2003-09-30 devnull 			scr = which && ptinrect(mousep->xy, which->scroll);
102 84b1cb73 2003-09-30 devnull 			if(mousep->buttons)
103 84b1cb73 2003-09-30 devnull 				flushtyping(1);
104 6bc22c7d 2005-01-30 devnull 			if(chording && chord==1 && !mousep->buttons)
105 17ab31aa 2005-01-27 devnull 				chord = 0;
106 6bc22c7d 2005-01-30 devnull 			if(chording && chord)
107 17ab31aa 2005-01-27 devnull 				chord |= mousep->buttons;
108 17ab31aa 2005-01-27 devnull 			else if(mousep->buttons&1){
109 84b1cb73 2003-09-30 devnull 				if(nwhich){
110 84b1cb73 2003-09-30 devnull 					if(nwhich!=which)
111 84b1cb73 2003-09-30 devnull 						current(nwhich);
112 84b1cb73 2003-09-30 devnull 					else if(scr)
113 84b1cb73 2003-09-30 devnull 						scroll(which, 1);
114 84b1cb73 2003-09-30 devnull 					else{
115 84b1cb73 2003-09-30 devnull 						t=(Text *)which->user1;
116 84b1cb73 2003-09-30 devnull 						if(flselect(which)){
117 84b1cb73 2003-09-30 devnull 							outTsl(Tdclick, t->tag, which->p0);
118 84b1cb73 2003-09-30 devnull 							t->lock++;
119 84b1cb73 2003-09-30 devnull 						}else if(t!=&cmd)
120 84b1cb73 2003-09-30 devnull 							outcmd();
121 17ab31aa 2005-01-27 devnull 						if(mousep->buttons&1)
122 17ab31aa 2005-01-27 devnull 							chord = mousep->buttons;
123 84b1cb73 2003-09-30 devnull 					}
124 84b1cb73 2003-09-30 devnull 				}
125 84b1cb73 2003-09-30 devnull 			}else if((mousep->buttons&2) && which){
126 84b1cb73 2003-09-30 devnull 				if(scr)
127 84b1cb73 2003-09-30 devnull 					scroll(which, 2);
128 84b1cb73 2003-09-30 devnull 				else
129 84b1cb73 2003-09-30 devnull 					menu2hit();
130 84b1cb73 2003-09-30 devnull 			}else if((mousep->buttons&4)){
131 84b1cb73 2003-09-30 devnull 				if(scr)
132 84b1cb73 2003-09-30 devnull 					scroll(which, 3);
133 84b1cb73 2003-09-30 devnull 				else
134 84b1cb73 2003-09-30 devnull 					menu3hit();
135 84b1cb73 2003-09-30 devnull 			}
136 84b1cb73 2003-09-30 devnull 			mouseunblock();
137 17ab31aa 2005-01-27 devnull 		}
138 6bc22c7d 2005-01-30 devnull 		if(chording && chord){
139 17ab31aa 2005-01-27 devnull 			t = (Text*)which->user1;
140 17ab31aa 2005-01-27 devnull 			if(!t->lock && !hostlock){
141 17ab31aa 2005-01-27 devnull 				w = which-t->l;
142 17ab31aa 2005-01-27 devnull 				if(chord&2){
143 17ab31aa 2005-01-27 devnull 					cut(t, w, 1, 1);
144 17ab31aa 2005-01-27 devnull 					chord &= ~2;
145 17ab31aa 2005-01-27 devnull 				}else if(chord&4){
146 17ab31aa 2005-01-27 devnull 					paste(t, w);
147 17ab31aa 2005-01-27 devnull 					chord &= ~4;
148 17ab31aa 2005-01-27 devnull 				}
149 17ab31aa 2005-01-27 devnull 			}
150 84b1cb73 2003-09-30 devnull 		}
151 84b1cb73 2003-09-30 devnull 	}
152 84b1cb73 2003-09-30 devnull }
153 84b1cb73 2003-09-30 devnull 
154 84b1cb73 2003-09-30 devnull void
155 84b1cb73 2003-09-30 devnull resize(void)
156 84b1cb73 2003-09-30 devnull {
157 84b1cb73 2003-09-30 devnull 	int i;
158 84b1cb73 2003-09-30 devnull 
159 84b1cb73 2003-09-30 devnull 	flresize(screen->clipr);
160 84b1cb73 2003-09-30 devnull 	for(i = 0; i<nname; i++)
161 84b1cb73 2003-09-30 devnull 		if(text[i])
162 84b1cb73 2003-09-30 devnull 			hcheck(text[i]->tag);
163 84b1cb73 2003-09-30 devnull }
164 84b1cb73 2003-09-30 devnull 
165 84b1cb73 2003-09-30 devnull void
166 84b1cb73 2003-09-30 devnull current(Flayer *nw)
167 84b1cb73 2003-09-30 devnull {
168 84b1cb73 2003-09-30 devnull 	Text *t;
169 84b1cb73 2003-09-30 devnull 
170 84b1cb73 2003-09-30 devnull 	if(which)
171 84b1cb73 2003-09-30 devnull 		flborder(which, 0);
172 84b1cb73 2003-09-30 devnull 	if(nw){
173 84b1cb73 2003-09-30 devnull 		flushtyping(1);
174 84b1cb73 2003-09-30 devnull 		flupfront(nw);
175 84b1cb73 2003-09-30 devnull 		flborder(nw, 1);
176 84b1cb73 2003-09-30 devnull 		buttons(Up);
177 84b1cb73 2003-09-30 devnull 		t = (Text *)nw->user1;
178 84b1cb73 2003-09-30 devnull 		t->front = nw-&t->l[0];
179 84b1cb73 2003-09-30 devnull 		if(t != &cmd)
180 84b1cb73 2003-09-30 devnull 			work = nw;
181 84b1cb73 2003-09-30 devnull 	}
182 84b1cb73 2003-09-30 devnull 	which = nw;
183 84b1cb73 2003-09-30 devnull }
184 84b1cb73 2003-09-30 devnull 
185 84b1cb73 2003-09-30 devnull void
186 84b1cb73 2003-09-30 devnull closeup(Flayer *l)
187 84b1cb73 2003-09-30 devnull {
188 84b1cb73 2003-09-30 devnull 	Text *t=(Text *)l->user1;
189 84b1cb73 2003-09-30 devnull 	int m;
190 84b1cb73 2003-09-30 devnull 
191 84b1cb73 2003-09-30 devnull 	m = whichmenu(t->tag);
192 84b1cb73 2003-09-30 devnull 	if(m < 0)
193 84b1cb73 2003-09-30 devnull 		return;
194 84b1cb73 2003-09-30 devnull 	flclose(l);
195 84b1cb73 2003-09-30 devnull 	if(l == which){
196 84b1cb73 2003-09-30 devnull 		which = 0;
197 84b1cb73 2003-09-30 devnull 		current(flwhich(Pt(0, 0)));
198 84b1cb73 2003-09-30 devnull 	}
199 84b1cb73 2003-09-30 devnull 	if(l == work)
200 84b1cb73 2003-09-30 devnull 		work = 0;
201 84b1cb73 2003-09-30 devnull 	if(--t->nwin == 0){
202 84b1cb73 2003-09-30 devnull 		rclear(&t->rasp);
203 84b1cb73 2003-09-30 devnull 		free((uchar *)t);
204 84b1cb73 2003-09-30 devnull 		text[m] = 0;
205 84b1cb73 2003-09-30 devnull 	}else if(l == &t->l[t->front]){
206 84b1cb73 2003-09-30 devnull 		for(m=0; m<NL; m++)	/* find one; any one will do */
207 84b1cb73 2003-09-30 devnull 			if(t->l[m].textfn){
208 84b1cb73 2003-09-30 devnull 				t->front = m;
209 84b1cb73 2003-09-30 devnull 				return;
210 84b1cb73 2003-09-30 devnull 			}
211 84b1cb73 2003-09-30 devnull 		panic("close");
212 84b1cb73 2003-09-30 devnull 	}
213 84b1cb73 2003-09-30 devnull }
214 84b1cb73 2003-09-30 devnull 
215 84b1cb73 2003-09-30 devnull Flayer *
216 84b1cb73 2003-09-30 devnull findl(Text *t)
217 84b1cb73 2003-09-30 devnull {
218 84b1cb73 2003-09-30 devnull 	int i;
219 84b1cb73 2003-09-30 devnull 	for(i = 0; i<NL; i++)
220 84b1cb73 2003-09-30 devnull 		if(t->l[i].textfn==0)
221 84b1cb73 2003-09-30 devnull 			return &t->l[i];
222 84b1cb73 2003-09-30 devnull 	return 0;
223 84b1cb73 2003-09-30 devnull }
224 84b1cb73 2003-09-30 devnull 
225 84b1cb73 2003-09-30 devnull void
226 84b1cb73 2003-09-30 devnull duplicate(Flayer *l, Rectangle r, Font *f, int close)
227 84b1cb73 2003-09-30 devnull {
228 84b1cb73 2003-09-30 devnull 	Text *t=(Text *)l->user1;
229 84b1cb73 2003-09-30 devnull 	Flayer *nl = findl(t);
230 84b1cb73 2003-09-30 devnull 	Rune *rp;
231 84b1cb73 2003-09-30 devnull 	ulong n;
232 84b1cb73 2003-09-30 devnull 
233 84b1cb73 2003-09-30 devnull 	if(nl){
234 84b1cb73 2003-09-30 devnull 		flnew(nl, gettext, l->user0, (char *)t);
235 84b1cb73 2003-09-30 devnull 		flinit(nl, r, f, l->f.cols);
236 84b1cb73 2003-09-30 devnull 		nl->origin = l->origin;
237 84b1cb73 2003-09-30 devnull 		rp = (*l->textfn)(l, l->f.nchars, &n);
238 84b1cb73 2003-09-30 devnull 		flinsert(nl, rp, rp+n, l->origin);
239 84b1cb73 2003-09-30 devnull 		flsetselect(nl, l->p0, l->p1);
240 84b1cb73 2003-09-30 devnull 		if(close){
241 84b1cb73 2003-09-30 devnull 			flclose(l);
242 84b1cb73 2003-09-30 devnull 			if(l==which)
243 84b1cb73 2003-09-30 devnull 				which = 0;
244 84b1cb73 2003-09-30 devnull 		}else
245 84b1cb73 2003-09-30 devnull 			t->nwin++;
246 84b1cb73 2003-09-30 devnull 		current(nl);
247 84b1cb73 2003-09-30 devnull 		hcheck(t->tag);
248 84b1cb73 2003-09-30 devnull 	}
249 84b1cb73 2003-09-30 devnull 	setcursor(mousectl, cursor);
250 84b1cb73 2003-09-30 devnull }
251 84b1cb73 2003-09-30 devnull 
252 84b1cb73 2003-09-30 devnull void
253 84b1cb73 2003-09-30 devnull buttons(int updown)
254 84b1cb73 2003-09-30 devnull {
255 84b1cb73 2003-09-30 devnull 	while(((mousep->buttons&7)!=0) != updown)
256 84b1cb73 2003-09-30 devnull 		getmouse();
257 84b1cb73 2003-09-30 devnull }
258 84b1cb73 2003-09-30 devnull 
259 84b1cb73 2003-09-30 devnull int
260 84b1cb73 2003-09-30 devnull getr(Rectangle *rp)
261 84b1cb73 2003-09-30 devnull {
262 84b1cb73 2003-09-30 devnull 	Point p;
263 84b1cb73 2003-09-30 devnull 	Rectangle r;
264 84b1cb73 2003-09-30 devnull 
265 84b1cb73 2003-09-30 devnull 	*rp = getrect(3, mousectl);
266 84b1cb73 2003-09-30 devnull 	if(rp->max.x && rp->max.x-rp->min.x<=5 && rp->max.y-rp->min.y<=5){
267 84b1cb73 2003-09-30 devnull 		p = rp->min;
268 84b1cb73 2003-09-30 devnull 		r = cmd.l[cmd.front].entire;
269 84b1cb73 2003-09-30 devnull 		*rp = screen->r;
270 84b1cb73 2003-09-30 devnull 		if(cmd.nwin==1){
271 84b1cb73 2003-09-30 devnull 			if (p.y <= r.min.y)
272 84b1cb73 2003-09-30 devnull 				rp->max.y = r.min.y;
273 84b1cb73 2003-09-30 devnull 			else if (p.y >= r.max.y)
274 84b1cb73 2003-09-30 devnull 				rp->min.y = r.max.y;
275 84b1cb73 2003-09-30 devnull 			if (p.x <= r.min.x)
276 84b1cb73 2003-09-30 devnull 				rp->max.x = r.min.x;
277 84b1cb73 2003-09-30 devnull 			else if (p.x >= r.max.x)
278 84b1cb73 2003-09-30 devnull 				rp->min.x = r.max.x;
279 84b1cb73 2003-09-30 devnull 		}
280 84b1cb73 2003-09-30 devnull 	}
281 84b1cb73 2003-09-30 devnull 	return rectclip(rp, screen->r) &&
282 84b1cb73 2003-09-30 devnull 	   rp->max.x-rp->min.x>100 && rp->max.y-rp->min.y>40;
283 84b1cb73 2003-09-30 devnull }
284 84b1cb73 2003-09-30 devnull 
285 84b1cb73 2003-09-30 devnull void
286 84b1cb73 2003-09-30 devnull snarf(Text *t, int w)
287 84b1cb73 2003-09-30 devnull {
288 84b1cb73 2003-09-30 devnull 	Flayer *l = &t->l[w];
289 84b1cb73 2003-09-30 devnull 
290 84b1cb73 2003-09-30 devnull 	if(l->p1>l->p0){
291 84b1cb73 2003-09-30 devnull 		snarflen = l->p1-l->p0;
292 84b1cb73 2003-09-30 devnull 		outTsll(Tsnarf, t->tag, l->p0, l->p1);
293 84b1cb73 2003-09-30 devnull 	}
294 84b1cb73 2003-09-30 devnull }
295 84b1cb73 2003-09-30 devnull 
296 84b1cb73 2003-09-30 devnull void
297 84b1cb73 2003-09-30 devnull cut(Text *t, int w, int save, int check)
298 84b1cb73 2003-09-30 devnull {
299 84b1cb73 2003-09-30 devnull 	long p0, p1;
300 84b1cb73 2003-09-30 devnull 	Flayer *l;
301 84b1cb73 2003-09-30 devnull 
302 84b1cb73 2003-09-30 devnull 	l = &t->l[w];
303 84b1cb73 2003-09-30 devnull 	p0 = l->p0;
304 84b1cb73 2003-09-30 devnull 	p1 = l->p1;
305 84b1cb73 2003-09-30 devnull 	if(p0 == p1)
306 84b1cb73 2003-09-30 devnull 		return;
307 84b1cb73 2003-09-30 devnull 	if(p0 < 0)
308 84b1cb73 2003-09-30 devnull 		panic("cut");
309 84b1cb73 2003-09-30 devnull 	if(save)
310 84b1cb73 2003-09-30 devnull 		snarf(t, w);
311 84b1cb73 2003-09-30 devnull 	outTsll(Tcut, t->tag, p0, p1);
312 84b1cb73 2003-09-30 devnull 	flsetselect(l, p0, p0);
313 84b1cb73 2003-09-30 devnull 	t->lock++;
314 84b1cb73 2003-09-30 devnull 	hcut(t->tag, p0, p1-p0);
315 84b1cb73 2003-09-30 devnull 	if(check)
316 84b1cb73 2003-09-30 devnull 		hcheck(t->tag);
317 84b1cb73 2003-09-30 devnull }
318 84b1cb73 2003-09-30 devnull 
319 84b1cb73 2003-09-30 devnull void
320 84b1cb73 2003-09-30 devnull paste(Text *t, int w)
321 84b1cb73 2003-09-30 devnull {
322 84b1cb73 2003-09-30 devnull 	if(snarflen){
323 84b1cb73 2003-09-30 devnull 		cut(t, w, 0, 0);
324 84b1cb73 2003-09-30 devnull 		t->lock++;
325 84b1cb73 2003-09-30 devnull 		outTsl(Tpaste, t->tag, t->l[w].p0);
326 84b1cb73 2003-09-30 devnull 	}
327 84b1cb73 2003-09-30 devnull }
328 84b1cb73 2003-09-30 devnull 
329 84b1cb73 2003-09-30 devnull void
330 84b1cb73 2003-09-30 devnull scrorigin(Flayer *l, int but, long p0)
331 84b1cb73 2003-09-30 devnull {
332 84b1cb73 2003-09-30 devnull 	Text *t=(Text *)l->user1;
333 84b1cb73 2003-09-30 devnull 
334 84b1cb73 2003-09-30 devnull 	switch(but){
335 84b1cb73 2003-09-30 devnull 	case 1:
336 84b1cb73 2003-09-30 devnull 		outTsll(Torigin, t->tag, l->origin, p0);
337 84b1cb73 2003-09-30 devnull 		break;
338 84b1cb73 2003-09-30 devnull 	case 2:
339 84b1cb73 2003-09-30 devnull 		outTsll(Torigin, t->tag, p0, 1L);
340 84b1cb73 2003-09-30 devnull 		break;
341 84b1cb73 2003-09-30 devnull 	case 3:
342 84b1cb73 2003-09-30 devnull 		horigin(t->tag,p0);
343 84b1cb73 2003-09-30 devnull 	}
344 84b1cb73 2003-09-30 devnull }
345 84b1cb73 2003-09-30 devnull 
346 84b1cb73 2003-09-30 devnull int
347 84b1cb73 2003-09-30 devnull alnum(int c)
348 84b1cb73 2003-09-30 devnull {
349 84b1cb73 2003-09-30 devnull 	/*
350 84b1cb73 2003-09-30 devnull 	 * Hard to get absolutely right.  Use what we know about ASCII
351 84b1cb73 2003-09-30 devnull 	 * and assume anything above the Latin control characters is
352 84b1cb73 2003-09-30 devnull 	 * potentially an alphanumeric.
353 84b1cb73 2003-09-30 devnull 	 */
354 84b1cb73 2003-09-30 devnull 	if(c<=' ')
355 84b1cb73 2003-09-30 devnull 		return 0;
356 84b1cb73 2003-09-30 devnull 	if(0x7F<=c && c<=0xA0)
357 84b1cb73 2003-09-30 devnull 		return 0;
358 84b1cb73 2003-09-30 devnull 	if(utfrune("!\"#$%&'()*+,-./:;<=>?@[\\]^`{|}~", c))
359 84b1cb73 2003-09-30 devnull 		return 0;
360 84b1cb73 2003-09-30 devnull 	return 1;
361 84b1cb73 2003-09-30 devnull }
362 84b1cb73 2003-09-30 devnull 
363 84b1cb73 2003-09-30 devnull int
364 84b1cb73 2003-09-30 devnull raspc(Rasp *r, long p)
365 84b1cb73 2003-09-30 devnull {
366 84b1cb73 2003-09-30 devnull 	ulong n;
367 84b1cb73 2003-09-30 devnull 	rload(r, p, p+1, &n);
368 84b1cb73 2003-09-30 devnull 	if(n)
369 84b1cb73 2003-09-30 devnull 		return scratch[0];
370 84b1cb73 2003-09-30 devnull 	return 0;
371 84b1cb73 2003-09-30 devnull }
372 84b1cb73 2003-09-30 devnull 
373 84b1cb73 2003-09-30 devnull long
374 84b1cb73 2003-09-30 devnull ctlw(Rasp *r, long o, long p)
375 84b1cb73 2003-09-30 devnull {
376 84b1cb73 2003-09-30 devnull 	int c;
377 84b1cb73 2003-09-30 devnull 
378 84b1cb73 2003-09-30 devnull 	if(--p < o)
379 84b1cb73 2003-09-30 devnull 		return o;
380 84b1cb73 2003-09-30 devnull 	if(raspc(r, p)=='\n')
381 84b1cb73 2003-09-30 devnull 		return p;
382 84b1cb73 2003-09-30 devnull 	for(; p>=o && !alnum(c=raspc(r, p)); --p)
383 84b1cb73 2003-09-30 devnull 		if(c=='\n')
384 84b1cb73 2003-09-30 devnull 			return p+1;
385 84b1cb73 2003-09-30 devnull 	for(; p>o && alnum(raspc(r, p-1)); --p)
386 84b1cb73 2003-09-30 devnull 		;
387 84b1cb73 2003-09-30 devnull 	return p>=o? p : o;
388 84b1cb73 2003-09-30 devnull }
389 84b1cb73 2003-09-30 devnull 
390 84b1cb73 2003-09-30 devnull long
391 84b1cb73 2003-09-30 devnull ctlu(Rasp *r, long o, long p)
392 84b1cb73 2003-09-30 devnull {
393 17f13194 2003-11-23 devnull 	if(--p < o)
394 17f13194 2003-11-23 devnull 		return o;
395 17f13194 2003-11-23 devnull 	if(raspc(r, p)=='\n')
396 17f13194 2003-11-23 devnull 		return p;
397 84b1cb73 2003-09-30 devnull 	for(; p-1>=o && raspc(r, p-1)!='\n'; --p)
398 84b1cb73 2003-09-30 devnull 		;
399 84b1cb73 2003-09-30 devnull 	return p>=o? p : o;
400 84b1cb73 2003-09-30 devnull }
401 84b1cb73 2003-09-30 devnull 
402 84b1cb73 2003-09-30 devnull int
403 84b1cb73 2003-09-30 devnull center(Flayer *l, long a)
404 84b1cb73 2003-09-30 devnull {
405 84b1cb73 2003-09-30 devnull 	Text *t;
406 84b1cb73 2003-09-30 devnull 
407 84b1cb73 2003-09-30 devnull 	t = l->user1;
408 84b1cb73 2003-09-30 devnull 	if(!t->lock && (a<l->origin || l->origin+l->f.nchars<a)){
409 84b1cb73 2003-09-30 devnull 		if(a > t->rasp.nrunes)
410 84b1cb73 2003-09-30 devnull 			a = t->rasp.nrunes;
411 84b1cb73 2003-09-30 devnull 		outTsll(Torigin, t->tag, a, 2L);
412 84b1cb73 2003-09-30 devnull 		return 1;
413 84b1cb73 2003-09-30 devnull 	}
414 84b1cb73 2003-09-30 devnull 	return 0;
415 84b1cb73 2003-09-30 devnull }
416 84b1cb73 2003-09-30 devnull 
417 84b1cb73 2003-09-30 devnull int
418 17ab31aa 2005-01-27 devnull thirds(Flayer *l, long a, int n)
419 84b1cb73 2003-09-30 devnull {
420 84b1cb73 2003-09-30 devnull 	Text *t;
421 84b1cb73 2003-09-30 devnull 	Rectangle s;
422 84b1cb73 2003-09-30 devnull 	long lines;
423 84b1cb73 2003-09-30 devnull 
424 84b1cb73 2003-09-30 devnull 	t = l->user1;
425 84b1cb73 2003-09-30 devnull 	if(!t->lock && (a<l->origin || l->origin+l->f.nchars<a)){
426 84b1cb73 2003-09-30 devnull 		if(a > t->rasp.nrunes)
427 84b1cb73 2003-09-30 devnull 			a = t->rasp.nrunes;
428 84b1cb73 2003-09-30 devnull 		s = insetrect(l->scroll, 1);
429 17ab31aa 2005-01-27 devnull 		lines = (n*(s.max.y-s.min.y)/l->f.font->height+1)/3;
430 84b1cb73 2003-09-30 devnull 		if (lines < 2)
431 84b1cb73 2003-09-30 devnull 			lines = 2;
432 84b1cb73 2003-09-30 devnull 		outTsll(Torigin, t->tag, a, lines);
433 84b1cb73 2003-09-30 devnull 		return 1;
434 84b1cb73 2003-09-30 devnull 	}
435 84b1cb73 2003-09-30 devnull 	return 0;
436 84b1cb73 2003-09-30 devnull }
437 84b1cb73 2003-09-30 devnull 
438 17ab31aa 2005-01-27 devnull int
439 17ab31aa 2005-01-27 devnull onethird(Flayer *l, long a)
440 17ab31aa 2005-01-27 devnull {
441 17ab31aa 2005-01-27 devnull 	return thirds(l, a, 1);
442 17ab31aa 2005-01-27 devnull }
443 17ab31aa 2005-01-27 devnull 
444 17ab31aa 2005-01-27 devnull int
445 17ab31aa 2005-01-27 devnull twothirds(Flayer *l, long a)
446 17ab31aa 2005-01-27 devnull {
447 17ab31aa 2005-01-27 devnull 	return thirds(l, a, 2);
448 17ab31aa 2005-01-27 devnull }
449 17ab31aa 2005-01-27 devnull 
450 84b1cb73 2003-09-30 devnull void
451 84b1cb73 2003-09-30 devnull flushtyping(int clearesc)
452 84b1cb73 2003-09-30 devnull {
453 84b1cb73 2003-09-30 devnull 	Text *t;
454 84b1cb73 2003-09-30 devnull 	ulong n;
455 84b1cb73 2003-09-30 devnull 
456 84b1cb73 2003-09-30 devnull 	if(clearesc)
457 84b1cb73 2003-09-30 devnull 		typeesc = -1;	
458 84b1cb73 2003-09-30 devnull 	if(typestart == typeend) {
459 84b1cb73 2003-09-30 devnull 		modified = 0;
460 84b1cb73 2003-09-30 devnull 		return;
461 84b1cb73 2003-09-30 devnull 	}
462 84b1cb73 2003-09-30 devnull 	t = which->user1;
463 84b1cb73 2003-09-30 devnull 	if(t != &cmd)
464 84b1cb73 2003-09-30 devnull 		modified = 1;
465 84b1cb73 2003-09-30 devnull 	rload(&t->rasp, typestart, typeend, &n);
466 84b1cb73 2003-09-30 devnull 	scratch[n] = 0;
467 84b1cb73 2003-09-30 devnull 	if(t==&cmd && typeend==t->rasp.nrunes && scratch[typeend-typestart-1]=='\n'){
468 84b1cb73 2003-09-30 devnull 		setlock();
469 84b1cb73 2003-09-30 devnull 		outcmd();
470 84b1cb73 2003-09-30 devnull 	}
471 84b1cb73 2003-09-30 devnull 	outTslS(Ttype, t->tag, typestart, scratch);
472 84b1cb73 2003-09-30 devnull 	typestart = -1;
473 84b1cb73 2003-09-30 devnull 	typeend = -1;
474 84b1cb73 2003-09-30 devnull }
475 84b1cb73 2003-09-30 devnull 
476 84b1cb73 2003-09-30 devnull #define	BACKSCROLLKEY	Kup
477 6b6159b3 2005-03-18 devnull #define	ENDKEY	Kend
478 84b1cb73 2003-09-30 devnull #define	ESC		0x1B
479 09a5f197 2004-06-09 devnull #define	HOMEKEY	Khome
480 6b6159b3 2005-03-18 devnull #define	LEFTARROW	Kleft
481 6b6159b3 2005-03-18 devnull #define	LINEEND	0x05
482 6b6159b3 2005-03-18 devnull #define	LINESTART	0x01
483 09a5f197 2004-06-09 devnull #define	PAGEDOWN	Kpgdown
484 6b6159b3 2005-03-18 devnull #define	PAGEUP	Kpgup
485 6b6159b3 2005-03-18 devnull #define	RIGHTARROW	Kright
486 6b6159b3 2005-03-18 devnull #define	SCROLLKEY	Kdown
487 84b1cb73 2003-09-30 devnull 
488 09a5f197 2004-06-09 devnull int
489 8414847a 2004-06-25 devnull nontypingkey(int c)
490 09a5f197 2004-06-09 devnull {
491 6b6159b3 2005-03-18 devnull 	switch(c){
492 6b6159b3 2005-03-18 devnull 	case BACKSCROLLKEY:
493 6b6159b3 2005-03-18 devnull 	case ENDKEY:
494 6b6159b3 2005-03-18 devnull 	case HOMEKEY:
495 6b6159b3 2005-03-18 devnull 	case LEFTARROW:
496 6b6159b3 2005-03-18 devnull 	case LINEEND:
497 6b6159b3 2005-03-18 devnull 	case LINESTART:
498 6b6159b3 2005-03-18 devnull 	case PAGEDOWN:
499 6b6159b3 2005-03-18 devnull 	case PAGEUP:
500 6b6159b3 2005-03-18 devnull 	case RIGHTARROW:
501 6b6159b3 2005-03-18 devnull 	case SCROLLKEY:
502 6b6159b3 2005-03-18 devnull 		return 1;
503 6b6159b3 2005-03-18 devnull 	}
504 6b6159b3 2005-03-18 devnull 	return 0;
505 09a5f197 2004-06-09 devnull }
506 09a5f197 2004-06-09 devnull 
507 84b1cb73 2003-09-30 devnull void
508 84b1cb73 2003-09-30 devnull type(Flayer *l, int res)	/* what a bloody mess this is */
509 84b1cb73 2003-09-30 devnull {
510 84b1cb73 2003-09-30 devnull 	Text *t = (Text *)l->user1;
511 84b1cb73 2003-09-30 devnull 	Rune buf[100];
512 84b1cb73 2003-09-30 devnull 	Rune *p = buf;
513 84b1cb73 2003-09-30 devnull 	int c, backspacing;
514 84b1cb73 2003-09-30 devnull 	long a, a0;
515 84b1cb73 2003-09-30 devnull 	int scrollkey;
516 84b1cb73 2003-09-30 devnull 
517 84b1cb73 2003-09-30 devnull 	scrollkey = 0;
518 84b1cb73 2003-09-30 devnull 	if(res == RKeyboard)
519 09a5f197 2004-06-09 devnull 		scrollkey = nontypingkey(qpeekc());	/* ICK */
520 84b1cb73 2003-09-30 devnull 
521 84b1cb73 2003-09-30 devnull 	if(hostlock || t->lock){
522 84b1cb73 2003-09-30 devnull 		kbdblock();
523 84b1cb73 2003-09-30 devnull 		return;
524 84b1cb73 2003-09-30 devnull 	}
525 84b1cb73 2003-09-30 devnull 	a = l->p0;
526 84b1cb73 2003-09-30 devnull 	if(a!=l->p1 && !scrollkey){
527 84b1cb73 2003-09-30 devnull 		flushtyping(1);
528 84b1cb73 2003-09-30 devnull 		cut(t, t->front, 1, 1);
529 84b1cb73 2003-09-30 devnull 		return;	/* it may now be locked */
530 84b1cb73 2003-09-30 devnull 	}
531 84b1cb73 2003-09-30 devnull 	backspacing = 0;
532 84b1cb73 2003-09-30 devnull 	while((c = kbdchar())>0){
533 84b1cb73 2003-09-30 devnull 		if(res == RKeyboard){
534 09a5f197 2004-06-09 devnull 			if(nontypingkey(c) || c==ESC)
535 84b1cb73 2003-09-30 devnull 				break;
536 84b1cb73 2003-09-30 devnull 			/* backspace, ctrl-u, ctrl-w, del */
537 84b1cb73 2003-09-30 devnull 			if(c=='\b' || c==0x15 || c==0x17 || c==0x7F){
538 84b1cb73 2003-09-30 devnull 				backspacing = 1;
539 84b1cb73 2003-09-30 devnull 				break;
540 84b1cb73 2003-09-30 devnull 			}
541 84b1cb73 2003-09-30 devnull 		}
542 84b1cb73 2003-09-30 devnull 		*p++ = c;
543 17ab31aa 2005-01-27 devnull 		if(autoindent)
544 17ab31aa 2005-01-27 devnull 		if(c == '\n'){
545 17ab31aa 2005-01-27 devnull 			/* autoindent */
546 17ab31aa 2005-01-27 devnull 			int cursor, ch;
547 17ab31aa 2005-01-27 devnull 			cursor = ctlu(&t->rasp, 0, a+(p-buf)-1);
548 17ab31aa 2005-01-27 devnull 			while(p < buf+nelem(buf)){
549 17ab31aa 2005-01-27 devnull 				ch = raspc(&t->rasp, cursor++);
550 17ab31aa 2005-01-27 devnull 				if(ch == ' ' || ch == '\t')
551 17ab31aa 2005-01-27 devnull 					*p++ = ch;
552 17ab31aa 2005-01-27 devnull 				else
553 17ab31aa 2005-01-27 devnull 					break;
554 17ab31aa 2005-01-27 devnull 			}
555 17ab31aa 2005-01-27 devnull 		}
556 17ab31aa 2005-01-27 devnull 		if(c == '\n' || p >= buf+nelem(buf))
557 84b1cb73 2003-09-30 devnull 			break;
558 84b1cb73 2003-09-30 devnull 	}
559 84b1cb73 2003-09-30 devnull 	if(p > buf){
560 84b1cb73 2003-09-30 devnull 		if(typestart < 0)
561 84b1cb73 2003-09-30 devnull 			typestart = a;
562 84b1cb73 2003-09-30 devnull 		if(typeesc < 0)
563 84b1cb73 2003-09-30 devnull 			typeesc = a;
564 84b1cb73 2003-09-30 devnull 		hgrow(t->tag, a, p-buf, 0);
565 84b1cb73 2003-09-30 devnull 		t->lock++;	/* pretend we Trequest'ed for hdatarune*/
566 84b1cb73 2003-09-30 devnull 		hdatarune(t->tag, a, buf, p-buf);
567 84b1cb73 2003-09-30 devnull 		a += p-buf;
568 84b1cb73 2003-09-30 devnull 		l->p0 = a;
569 84b1cb73 2003-09-30 devnull 		l->p1 = a;
570 84b1cb73 2003-09-30 devnull 		typeend = a;
571 84b1cb73 2003-09-30 devnull 		if(c=='\n' || typeend-typestart>100)
572 84b1cb73 2003-09-30 devnull 			flushtyping(0);
573 84b1cb73 2003-09-30 devnull 		onethird(l, a);
574 84b1cb73 2003-09-30 devnull 	}
575 09a5f197 2004-06-09 devnull 	if(c==SCROLLKEY || c==PAGEDOWN){
576 84b1cb73 2003-09-30 devnull 		flushtyping(0);
577 84b1cb73 2003-09-30 devnull 		center(l, l->origin+l->f.nchars+1);
578 09a5f197 2004-06-09 devnull 	}else if(c==BACKSCROLLKEY || c==PAGEUP){
579 84b1cb73 2003-09-30 devnull 		flushtyping(0);
580 84b1cb73 2003-09-30 devnull 		a0 = l->origin-l->f.nchars;
581 84b1cb73 2003-09-30 devnull 		if(a0 < 0)
582 84b1cb73 2003-09-30 devnull 			a0 = 0;
583 84b1cb73 2003-09-30 devnull 		center(l, a0);
584 09a5f197 2004-06-09 devnull 	}else if(c == RIGHTARROW){
585 09a5f197 2004-06-09 devnull 		flushtyping(0);
586 09a5f197 2004-06-09 devnull 		a0 = l->p0;
587 09a5f197 2004-06-09 devnull 		if(a0 < t->rasp.nrunes)
588 09a5f197 2004-06-09 devnull 			a0++;
589 09a5f197 2004-06-09 devnull 		flsetselect(l, a0, a0);
590 09a5f197 2004-06-09 devnull 		center(l, a0);
591 09a5f197 2004-06-09 devnull 	}else if(c == LEFTARROW){
592 09a5f197 2004-06-09 devnull 		flushtyping(0);
593 09a5f197 2004-06-09 devnull 		a0 = l->p0;
594 09a5f197 2004-06-09 devnull 		if(a0 > 0)
595 09a5f197 2004-06-09 devnull 			a0--;
596 09a5f197 2004-06-09 devnull 		flsetselect(l, a0, a0);
597 09a5f197 2004-06-09 devnull 		center(l, a0);
598 09a5f197 2004-06-09 devnull 	}else if(c == HOMEKEY){
599 09a5f197 2004-06-09 devnull 		flushtyping(0);
600 09a5f197 2004-06-09 devnull 		center(l, 0);
601 09a5f197 2004-06-09 devnull 	}else if(c == ENDKEY){
602 09a5f197 2004-06-09 devnull 		flushtyping(0);
603 09a5f197 2004-06-09 devnull 		center(l, t->rasp.nrunes);
604 6b6159b3 2005-03-18 devnull 	}else if(c == LINESTART || c == LINEEND){
605 6b6159b3 2005-03-18 devnull 		flushtyping(1);
606 6b6159b3 2005-03-18 devnull 		if(c == LINESTART)
607 6b6159b3 2005-03-18 devnull 			while(a > 0 && raspc(&t->rasp, a-1)!='\n')
608 6b6159b3 2005-03-18 devnull 				a--;
609 6b6159b3 2005-03-18 devnull 		else
610 6b6159b3 2005-03-18 devnull 			while(a < t->rasp.nrunes && raspc(&t->rasp, a)!='\n')
611 6b6159b3 2005-03-18 devnull 				a++;
612 6b6159b3 2005-03-18 devnull 		l->p0 = l->p1 = a;
613 6b6159b3 2005-03-18 devnull 		for(l=t->l; l<&t->l[NL]; l++)
614 6b6159b3 2005-03-18 devnull 			if(l->textfn)
615 6b6159b3 2005-03-18 devnull 				flsetselect(l, l->p0, l->p1);
616 84b1cb73 2003-09-30 devnull 	}else if(backspacing && !hostlock){
617 ac9d504d 2004-06-17 devnull 		/* backspacing immediately after outcmd(): sorry */
618 84b1cb73 2003-09-30 devnull 		if(l->f.p0>0 && a>0){
619 84b1cb73 2003-09-30 devnull 			switch(c){
620 84b1cb73 2003-09-30 devnull 			case '\b':
621 84b1cb73 2003-09-30 devnull 			case 0x7F:	/* del */
622 84b1cb73 2003-09-30 devnull 				l->p0 = a-1;
623 84b1cb73 2003-09-30 devnull 				break;
624 84b1cb73 2003-09-30 devnull 			case 0x15:	/* ctrl-u */
625 84b1cb73 2003-09-30 devnull 				l->p0 = ctlu(&t->rasp, l->origin, a);
626 84b1cb73 2003-09-30 devnull 				break;
627 84b1cb73 2003-09-30 devnull 			case 0x17:	/* ctrl-w */
628 84b1cb73 2003-09-30 devnull 				l->p0 = ctlw(&t->rasp, l->origin, a);
629 84b1cb73 2003-09-30 devnull 				break;
630 84b1cb73 2003-09-30 devnull 			}
631 84b1cb73 2003-09-30 devnull 			l->p1 = a;
632 84b1cb73 2003-09-30 devnull 			if(l->p1 != l->p0){
633 84b1cb73 2003-09-30 devnull 				/* cut locally if possible */
634 84b1cb73 2003-09-30 devnull 				if(typestart<=l->p0 && l->p1<=typeend){
635 84b1cb73 2003-09-30 devnull 					t->lock++;	/* to call hcut */
636 84b1cb73 2003-09-30 devnull 					hcut(t->tag, l->p0, l->p1-l->p0);
637 84b1cb73 2003-09-30 devnull 					/* hcheck is local because we know rasp is contiguous */
638 84b1cb73 2003-09-30 devnull 					hcheck(t->tag);
639 84b1cb73 2003-09-30 devnull 				}else{
640 84b1cb73 2003-09-30 devnull 					flushtyping(0);
641 84b1cb73 2003-09-30 devnull 					cut(t, t->front, 0, 1);
642 84b1cb73 2003-09-30 devnull 				}
643 84b1cb73 2003-09-30 devnull 			}
644 84b1cb73 2003-09-30 devnull 			if(typeesc >= l->p0)
645 84b1cb73 2003-09-30 devnull 				typeesc = l->p0;
646 84b1cb73 2003-09-30 devnull 			if(typestart >= 0){
647 84b1cb73 2003-09-30 devnull 				if(typestart >= l->p0)
648 84b1cb73 2003-09-30 devnull 					typestart = l->p0;
649 84b1cb73 2003-09-30 devnull 				typeend = l->p0;
650 84b1cb73 2003-09-30 devnull 				if(typestart == typeend){
651 84b1cb73 2003-09-30 devnull 					typestart = -1;
652 84b1cb73 2003-09-30 devnull 					typeend = -1;
653 84b1cb73 2003-09-30 devnull 					modified = 0;
654 84b1cb73 2003-09-30 devnull 				}
655 84b1cb73 2003-09-30 devnull 			}
656 84b1cb73 2003-09-30 devnull 		}
657 84b1cb73 2003-09-30 devnull 	}else{
658 84b1cb73 2003-09-30 devnull 		if(c==ESC && typeesc>=0){
659 84b1cb73 2003-09-30 devnull 			l->p0 = typeesc;
660 84b1cb73 2003-09-30 devnull 			l->p1 = a;
661 84b1cb73 2003-09-30 devnull 			flushtyping(1);
662 84b1cb73 2003-09-30 devnull 		}
663 84b1cb73 2003-09-30 devnull 		for(l=t->l; l<&t->l[NL]; l++)
664 84b1cb73 2003-09-30 devnull 			if(l->textfn)
665 84b1cb73 2003-09-30 devnull 				flsetselect(l, l->p0, l->p1);
666 84b1cb73 2003-09-30 devnull 	}
667 84b1cb73 2003-09-30 devnull }
668 84b1cb73 2003-09-30 devnull 
669 84b1cb73 2003-09-30 devnull 
670 84b1cb73 2003-09-30 devnull void
671 84b1cb73 2003-09-30 devnull outcmd(void){
672 84b1cb73 2003-09-30 devnull 	if(work)
673 84b1cb73 2003-09-30 devnull 		outTsll(Tworkfile, ((Text *)work->user1)->tag, work->p0, work->p1);
674 84b1cb73 2003-09-30 devnull }
675 84b1cb73 2003-09-30 devnull 
676 84b1cb73 2003-09-30 devnull void
677 84b1cb73 2003-09-30 devnull panic(char *s)
678 84b1cb73 2003-09-30 devnull {
679 84b1cb73 2003-09-30 devnull 	panic1(display, s);
680 84b1cb73 2003-09-30 devnull }
681 84b1cb73 2003-09-30 devnull 
682 84b1cb73 2003-09-30 devnull void
683 84b1cb73 2003-09-30 devnull panic1(Display *d, char *s)
684 84b1cb73 2003-09-30 devnull {
685 84b1cb73 2003-09-30 devnull 	fprint(2, "samterm:panic: ");
686 84b1cb73 2003-09-30 devnull 	perror(s);
687 84b1cb73 2003-09-30 devnull 	abort();
688 84b1cb73 2003-09-30 devnull }
689 84b1cb73 2003-09-30 devnull 
690 84b1cb73 2003-09-30 devnull Rune*
691 84b1cb73 2003-09-30 devnull gettext(Flayer *l, long n, ulong *np)
692 84b1cb73 2003-09-30 devnull {
693 84b1cb73 2003-09-30 devnull 	Text *t;
694 84b1cb73 2003-09-30 devnull 
695 84b1cb73 2003-09-30 devnull 	t = l->user1;
696 84b1cb73 2003-09-30 devnull 	rload(&t->rasp, l->origin, l->origin+n, np);
697 84b1cb73 2003-09-30 devnull 	return scratch;
698 84b1cb73 2003-09-30 devnull }
699 84b1cb73 2003-09-30 devnull 
700 84b1cb73 2003-09-30 devnull long
701 84b1cb73 2003-09-30 devnull scrtotal(Flayer *l)
702 84b1cb73 2003-09-30 devnull {
703 84b1cb73 2003-09-30 devnull 	return ((Text *)l->user1)->rasp.nrunes;
704 84b1cb73 2003-09-30 devnull }
705 84b1cb73 2003-09-30 devnull 
706 84b1cb73 2003-09-30 devnull void*
707 84b1cb73 2003-09-30 devnull alloc(ulong n)
708 84b1cb73 2003-09-30 devnull {
709 84b1cb73 2003-09-30 devnull 	void *p;
710 84b1cb73 2003-09-30 devnull 
711 84b1cb73 2003-09-30 devnull 	p = malloc(n);
712 84b1cb73 2003-09-30 devnull 	if(p == 0)
713 84b1cb73 2003-09-30 devnull 		panic("alloc");
714 84b1cb73 2003-09-30 devnull 	memset(p, 0, n);
715 84b1cb73 2003-09-30 devnull 	return p;
716 84b1cb73 2003-09-30 devnull }