1 76193d7c 2003-09-30 devnull #include "sam.h"
  2 76193d7c 2003-09-30 devnull 
  3 76193d7c 2003-09-30 devnull Rune	genbuf[BLOCKSIZE];
  4 76193d7c 2003-09-30 devnull int	io;
  5 76193d7c 2003-09-30 devnull int	panicking;
  6 76193d7c 2003-09-30 devnull int	rescuing;
  7 76193d7c 2003-09-30 devnull String	genstr;
  8 76193d7c 2003-09-30 devnull String	rhs;
  9 76193d7c 2003-09-30 devnull String	curwd;
 10 76193d7c 2003-09-30 devnull String	cmdstr;
 11 76193d7c 2003-09-30 devnull Rune	empty[] = { 0 };
 12 76193d7c 2003-09-30 devnull char	*genc;
 13 76193d7c 2003-09-30 devnull File	*curfile;
 14 76193d7c 2003-09-30 devnull File	*flist;
 15 76193d7c 2003-09-30 devnull File	*cmd;
 16 76193d7c 2003-09-30 devnull jmp_buf	mainloop;
 17 2c0f3733 2006-04-20 devnull List	tempfile = { 'p' };
 18 76193d7c 2003-09-30 devnull int	quitok = TRUE;
 19 76193d7c 2003-09-30 devnull int	downloaded;
 20 76193d7c 2003-09-30 devnull int	dflag;
 21 76193d7c 2003-09-30 devnull int	Rflag;
 22 76193d7c 2003-09-30 devnull char	*machine;
 23 76193d7c 2003-09-30 devnull char	*home;
 24 76193d7c 2003-09-30 devnull int	bpipeok;
 25 76193d7c 2003-09-30 devnull int	termlocked;
 26 76193d7c 2003-09-30 devnull char	*samterm = SAMTERM;
 27 76193d7c 2003-09-30 devnull char	*rsamname = RSAM;
 28 76193d7c 2003-09-30 devnull File	*lastfile;
 29 76193d7c 2003-09-30 devnull Disk	*disk;
 30 76193d7c 2003-09-30 devnull long	seq;
 31 76193d7c 2003-09-30 devnull 
 32 be36ff68 2004-04-29 devnull char *winsize;
 33 be36ff68 2004-04-29 devnull 
 34 76193d7c 2003-09-30 devnull Rune	baddir[] = { '<', 'b', 'a', 'd', 'd', 'i', 'r', '>', '\n'};
 35 76193d7c 2003-09-30 devnull 
 36 76193d7c 2003-09-30 devnull void	usage(void);
 37 76193d7c 2003-09-30 devnull 
 38 ffcafb8c 2003-10-11 devnull extern int notify(void(*)(void*,char*));
 39 ffcafb8c 2003-10-11 devnull 
 40 2c0f3733 2006-04-20 devnull void
 41 7f629d9d 2006-05-06 devnull main(int _argc, char **_argv)
 42 76193d7c 2003-09-30 devnull {
 43 7f629d9d 2006-05-06 devnull 	volatile int i, argc;
 44 7f629d9d 2006-05-06 devnull 	char **volatile argv;
 45 76193d7c 2003-09-30 devnull 	String *t;
 46 17ab31aa 2005-01-27 devnull 	char *termargs[10], **ap;
 47 fa325e9b 2020-01-10 cross 
 48 7f629d9d 2006-05-06 devnull 	argc = _argc;
 49 7f629d9d 2006-05-06 devnull 	argv = _argv;
 50 17ab31aa 2005-01-27 devnull 	ap = termargs;
 51 17ab31aa 2005-01-27 devnull 	*ap++ = "samterm";
 52 17ab31aa 2005-01-27 devnull 	ARGBEGIN{
 53 17ab31aa 2005-01-27 devnull 	case 'd':
 54 17ab31aa 2005-01-27 devnull 		dflag++;
 55 17ab31aa 2005-01-27 devnull 		break;
 56 17ab31aa 2005-01-27 devnull 	case 'r':
 57 17ab31aa 2005-01-27 devnull 		machine = EARGF(usage());
 58 17ab31aa 2005-01-27 devnull 		break;
 59 17ab31aa 2005-01-27 devnull 	case 'R':
 60 17ab31aa 2005-01-27 devnull 		Rflag++;
 61 17ab31aa 2005-01-27 devnull 		break;
 62 17ab31aa 2005-01-27 devnull 	case 't':
 63 17ab31aa 2005-01-27 devnull 		samterm = EARGF(usage());
 64 17ab31aa 2005-01-27 devnull 		break;
 65 17ab31aa 2005-01-27 devnull 	case 's':
 66 17ab31aa 2005-01-27 devnull 		rsamname = EARGF(usage());
 67 17ab31aa 2005-01-27 devnull 		break;
 68 17ab31aa 2005-01-27 devnull 	default:
 69 17ab31aa 2005-01-27 devnull 		dprint("sam: unknown flag %c\n", ARGC());
 70 17ab31aa 2005-01-27 devnull 		usage();
 71 17ab31aa 2005-01-27 devnull 	/* options for samterm */
 72 17ab31aa 2005-01-27 devnull 	case 'a':
 73 17ab31aa 2005-01-27 devnull 		*ap++ = "-a";
 74 17ab31aa 2005-01-27 devnull 		break;
 75 17ab31aa 2005-01-27 devnull 	case 'W':
 76 17ab31aa 2005-01-27 devnull 		*ap++ = "-W";
 77 17ab31aa 2005-01-27 devnull 		*ap++ = EARGF(usage());
 78 17ab31aa 2005-01-27 devnull 		break;
 79 17ab31aa 2005-01-27 devnull 	}ARGEND
 80 17ab31aa 2005-01-27 devnull 	*ap = nil;
 81 76193d7c 2003-09-30 devnull 
 82 76193d7c 2003-09-30 devnull 	Strinit(&cmdstr);
 83 76193d7c 2003-09-30 devnull 	Strinit0(&lastpat);
 84 76193d7c 2003-09-30 devnull 	Strinit0(&lastregexp);
 85 76193d7c 2003-09-30 devnull 	Strinit0(&genstr);
 86 76193d7c 2003-09-30 devnull 	Strinit0(&rhs);
 87 76193d7c 2003-09-30 devnull 	Strinit0(&curwd);
 88 76193d7c 2003-09-30 devnull 	Strinit0(&plan9cmd);
 89 76193d7c 2003-09-30 devnull 	home = getenv(HOME);
 90 76193d7c 2003-09-30 devnull 	disk = diskinit();
 91 76193d7c 2003-09-30 devnull 	if(home == 0)
 92 76193d7c 2003-09-30 devnull 		home = "/";
 93 76193d7c 2003-09-30 devnull 	if(!dflag)
 94 7f629d9d 2006-05-06 devnull 		startup(machine, Rflag, termargs, (char**)argv);
 95 76193d7c 2003-09-30 devnull 	notify(notifyf);
 96 76193d7c 2003-09-30 devnull 	getcurwd();
 97 17ab31aa 2005-01-27 devnull 	if(argc>0){
 98 17ab31aa 2005-01-27 devnull 		for(i=0; i<argc; i++){
 99 76193d7c 2003-09-30 devnull 			if(!setjmp(mainloop)){
100 76193d7c 2003-09-30 devnull 				t = tmpcstr(argv[i]);
101 76193d7c 2003-09-30 devnull 				Straddc(t, '\0');
102 76193d7c 2003-09-30 devnull 				Strduplstr(&genstr, t);
103 76193d7c 2003-09-30 devnull 				freetmpstr(t);
104 76193d7c 2003-09-30 devnull 				fixname(&genstr);
105 76193d7c 2003-09-30 devnull 				logsetname(newfile(), &genstr);
106 76193d7c 2003-09-30 devnull 			}
107 76193d7c 2003-09-30 devnull 		}
108 76193d7c 2003-09-30 devnull 	}else if(!downloaded)
109 76193d7c 2003-09-30 devnull 		newfile();
110 76193d7c 2003-09-30 devnull 	seq++;
111 76193d7c 2003-09-30 devnull 	if(file.nused)
112 76193d7c 2003-09-30 devnull 		current(file.filepptr[0]);
113 76193d7c 2003-09-30 devnull 	setjmp(mainloop);
114 76193d7c 2003-09-30 devnull 	cmdloop();
115 76193d7c 2003-09-30 devnull 	trytoquit();	/* if we already q'ed, quitok will be TRUE */
116 76193d7c 2003-09-30 devnull 	exits(0);
117 76193d7c 2003-09-30 devnull }
118 76193d7c 2003-09-30 devnull 
119 76193d7c 2003-09-30 devnull void
120 76193d7c 2003-09-30 devnull usage(void)
121 76193d7c 2003-09-30 devnull {
122 17157e4a 2006-03-20 devnull 	dprint("usage: sam [-d] [-t samterm] [-s sam name] [-r machine] [file ...]\n");
123 76193d7c 2003-09-30 devnull 	exits("usage");
124 76193d7c 2003-09-30 devnull }
125 76193d7c 2003-09-30 devnull 
126 76193d7c 2003-09-30 devnull void
127 76193d7c 2003-09-30 devnull rescue(void)
128 76193d7c 2003-09-30 devnull {
129 76193d7c 2003-09-30 devnull 	int i, nblank = 0;
130 76193d7c 2003-09-30 devnull 	File *f;
131 76193d7c 2003-09-30 devnull 	char *c;
132 76193d7c 2003-09-30 devnull 	char buf[256];
133 f7012583 2003-11-25 devnull 	char *root;
134 76193d7c 2003-09-30 devnull 
135 76193d7c 2003-09-30 devnull 	if(rescuing++)
136 76193d7c 2003-09-30 devnull 		return;
137 76193d7c 2003-09-30 devnull 	io = -1;
138 76193d7c 2003-09-30 devnull 	for(i=0; i<file.nused; i++){
139 76193d7c 2003-09-30 devnull 		f = file.filepptr[i];
140 522b0689 2003-09-30 devnull 		if(f==cmd || f->b.nc==0 || !fileisdirty(f))
141 76193d7c 2003-09-30 devnull 			continue;
142 76193d7c 2003-09-30 devnull 		if(io == -1){
143 76193d7c 2003-09-30 devnull 			sprint(buf, "%s/sam.save", home);
144 76193d7c 2003-09-30 devnull 			io = create(buf, 1, 0777);
145 76193d7c 2003-09-30 devnull 			if(io<0)
146 76193d7c 2003-09-30 devnull 				return;
147 76193d7c 2003-09-30 devnull 		}
148 76193d7c 2003-09-30 devnull 		if(f->name.s[0]){
149 76193d7c 2003-09-30 devnull 			c = Strtoc(&f->name);
150 76193d7c 2003-09-30 devnull 			strncpy(buf, c, sizeof buf-1);
151 76193d7c 2003-09-30 devnull 			buf[sizeof buf-1] = 0;
152 76193d7c 2003-09-30 devnull 			free(c);
153 76193d7c 2003-09-30 devnull 		}else
154 76193d7c 2003-09-30 devnull 			sprint(buf, "nameless.%d", nblank++);
155 c5323003 2022-07-27 crossd 		root = get9root();
156 f7012583 2003-11-25 devnull 		fprint(io, "#!/bin/sh\n%s/bin/samsave '%s' $* <<'---%s'\n", root, buf, buf);
157 522b0689 2003-09-30 devnull 		addr.r.p1 = 0, addr.r.p2 = f->b.nc;
158 76193d7c 2003-09-30 devnull 		writeio(f);
159 76193d7c 2003-09-30 devnull 		fprint(io, "\n---%s\n", (char *)buf);
160 76193d7c 2003-09-30 devnull 	}
161 76193d7c 2003-09-30 devnull }
162 76193d7c 2003-09-30 devnull 
163 76193d7c 2003-09-30 devnull void
164 76193d7c 2003-09-30 devnull panic(char *s)
165 76193d7c 2003-09-30 devnull {
166 76193d7c 2003-09-30 devnull 	int wasd;
167 76193d7c 2003-09-30 devnull 
168 76193d7c 2003-09-30 devnull 	if(!panicking++ && !setjmp(mainloop)){
169 76193d7c 2003-09-30 devnull 		wasd = downloaded;
170 76193d7c 2003-09-30 devnull 		downloaded = 0;
171 76193d7c 2003-09-30 devnull 		dprint("sam: panic: %s: %r\n", s);
172 76193d7c 2003-09-30 devnull 		if(wasd)
173 76193d7c 2003-09-30 devnull 			fprint(2, "sam: panic: %s: %r\n", s);
174 76193d7c 2003-09-30 devnull 		rescue();
175 76193d7c 2003-09-30 devnull 		abort();
176 76193d7c 2003-09-30 devnull 	}
177 76193d7c 2003-09-30 devnull }
178 76193d7c 2003-09-30 devnull 
179 76193d7c 2003-09-30 devnull void
180 76193d7c 2003-09-30 devnull hiccough(char *s)
181 76193d7c 2003-09-30 devnull {
182 76193d7c 2003-09-30 devnull 	File *f;
183 76193d7c 2003-09-30 devnull 	int i;
184 76193d7c 2003-09-30 devnull 
185 76193d7c 2003-09-30 devnull 	if(rescuing)
186 76193d7c 2003-09-30 devnull 		exits("rescue");
187 76193d7c 2003-09-30 devnull 	if(s)
188 76193d7c 2003-09-30 devnull 		dprint("%s\n", s);
189 76193d7c 2003-09-30 devnull 	resetcmd();
190 76193d7c 2003-09-30 devnull 	resetxec();
191 76193d7c 2003-09-30 devnull 	resetsys();
192 76193d7c 2003-09-30 devnull 	if(io > 0)
193 76193d7c 2003-09-30 devnull 		close(io);
194 76193d7c 2003-09-30 devnull 
195 76193d7c 2003-09-30 devnull 	/*
196 76193d7c 2003-09-30 devnull 	 * back out any logged changes & restore old sequences
197 76193d7c 2003-09-30 devnull 	 */
198 76193d7c 2003-09-30 devnull 	for(i=0; i<file.nused; i++){
199 76193d7c 2003-09-30 devnull 		f = file.filepptr[i];
200 76193d7c 2003-09-30 devnull 		if(f==cmd)
201 76193d7c 2003-09-30 devnull 			continue;
202 76193d7c 2003-09-30 devnull 		if(f->seq==seq){
203 76193d7c 2003-09-30 devnull 			bufdelete(&f->epsilon, 0, f->epsilon.nc);
204 76193d7c 2003-09-30 devnull 			f->seq = f->prevseq;
205 76193d7c 2003-09-30 devnull 			f->dot.r = f->prevdot;
206 76193d7c 2003-09-30 devnull 			f->mark = f->prevmark;
207 76193d7c 2003-09-30 devnull 			state(f, f->prevmod ? Dirty: Clean);
208 76193d7c 2003-09-30 devnull 		}
209 76193d7c 2003-09-30 devnull 	}
210 76193d7c 2003-09-30 devnull 
211 76193d7c 2003-09-30 devnull 	update();
212 76193d7c 2003-09-30 devnull 	if (curfile) {
213 76193d7c 2003-09-30 devnull 		if (curfile->unread)
214 76193d7c 2003-09-30 devnull 			curfile->unread = FALSE;
215 76193d7c 2003-09-30 devnull 		else if (downloaded)
216 76193d7c 2003-09-30 devnull 			outTs(Hcurrent, curfile->tag);
217 76193d7c 2003-09-30 devnull 	}
218 76193d7c 2003-09-30 devnull 	longjmp(mainloop, 1);
219 76193d7c 2003-09-30 devnull }
220 76193d7c 2003-09-30 devnull 
221 76193d7c 2003-09-30 devnull void
222 76193d7c 2003-09-30 devnull intr(void)
223 76193d7c 2003-09-30 devnull {
224 76193d7c 2003-09-30 devnull 	error(Eintr);
225 76193d7c 2003-09-30 devnull }
226 76193d7c 2003-09-30 devnull 
227 76193d7c 2003-09-30 devnull void
228 76193d7c 2003-09-30 devnull trytoclose(File *f)
229 76193d7c 2003-09-30 devnull {
230 76193d7c 2003-09-30 devnull 	char *t;
231 76193d7c 2003-09-30 devnull 	char buf[256];
232 76193d7c 2003-09-30 devnull 
233 76193d7c 2003-09-30 devnull 	if(f == cmd)	/* possible? */
234 76193d7c 2003-09-30 devnull 		return;
235 76193d7c 2003-09-30 devnull 	if(f->deleted)
236 76193d7c 2003-09-30 devnull 		return;
237 76193d7c 2003-09-30 devnull 	if(fileisdirty(f) && !f->closeok){
238 76193d7c 2003-09-30 devnull 		f->closeok = TRUE;
239 76193d7c 2003-09-30 devnull 		if(f->name.s[0]){
240 76193d7c 2003-09-30 devnull 			t = Strtoc(&f->name);
241 76193d7c 2003-09-30 devnull 			strncpy(buf, t, sizeof buf-1);
242 76193d7c 2003-09-30 devnull 			free(t);
243 76193d7c 2003-09-30 devnull 		}else
244 76193d7c 2003-09-30 devnull 			strcpy(buf, "nameless file");
245 76193d7c 2003-09-30 devnull 		error_s(Emodified, buf);
246 76193d7c 2003-09-30 devnull 	}
247 76193d7c 2003-09-30 devnull 	f->deleted = TRUE;
248 76193d7c 2003-09-30 devnull }
249 76193d7c 2003-09-30 devnull 
250 76193d7c 2003-09-30 devnull void
251 76193d7c 2003-09-30 devnull trytoquit(void)
252 76193d7c 2003-09-30 devnull {
253 76193d7c 2003-09-30 devnull 	int c;
254 76193d7c 2003-09-30 devnull 	File *f;
255 76193d7c 2003-09-30 devnull 
256 76193d7c 2003-09-30 devnull 	if(!quitok){
257 76193d7c 2003-09-30 devnull 		for(c = 0; c<file.nused; c++){
258 76193d7c 2003-09-30 devnull 			f = file.filepptr[c];
259 76193d7c 2003-09-30 devnull 			if(f!=cmd && fileisdirty(f)){
260 76193d7c 2003-09-30 devnull 				quitok = TRUE;
261 76193d7c 2003-09-30 devnull 				eof = FALSE;
262 76193d7c 2003-09-30 devnull 				error(Echanges);
263 76193d7c 2003-09-30 devnull 			}
264 76193d7c 2003-09-30 devnull 		}
265 76193d7c 2003-09-30 devnull 	}
266 76193d7c 2003-09-30 devnull }
267 76193d7c 2003-09-30 devnull 
268 76193d7c 2003-09-30 devnull void
269 76193d7c 2003-09-30 devnull load(File *f)
270 76193d7c 2003-09-30 devnull {
271 76193d7c 2003-09-30 devnull 	Address saveaddr;
272 76193d7c 2003-09-30 devnull 
273 76193d7c 2003-09-30 devnull 	Strduplstr(&genstr, &f->name);
274 76193d7c 2003-09-30 devnull 	filename(f);
275 76193d7c 2003-09-30 devnull 	if(f->name.s[0]){
276 76193d7c 2003-09-30 devnull 		saveaddr = addr;
277 76193d7c 2003-09-30 devnull 		edit(f, 'I');
278 76193d7c 2003-09-30 devnull 		addr = saveaddr;
279 76193d7c 2003-09-30 devnull 	}else{
280 76193d7c 2003-09-30 devnull 		f->unread = 0;
281 76193d7c 2003-09-30 devnull 		f->cleanseq = f->seq;
282 76193d7c 2003-09-30 devnull 	}
283 76193d7c 2003-09-30 devnull 
284 76193d7c 2003-09-30 devnull 	fileupdate(f, TRUE, TRUE);
285 76193d7c 2003-09-30 devnull }
286 76193d7c 2003-09-30 devnull 
287 76193d7c 2003-09-30 devnull void
288 76193d7c 2003-09-30 devnull cmdupdate(void)
289 76193d7c 2003-09-30 devnull {
290 76193d7c 2003-09-30 devnull 	if(cmd && cmd->seq!=0){
291 76193d7c 2003-09-30 devnull 		fileupdate(cmd, FALSE, downloaded);
292 522b0689 2003-09-30 devnull 		cmd->dot.r.p1 = cmd->dot.r.p2 = cmd->b.nc;
293 76193d7c 2003-09-30 devnull 		telldot(cmd);
294 76193d7c 2003-09-30 devnull 	}
295 76193d7c 2003-09-30 devnull }
296 76193d7c 2003-09-30 devnull 
297 76193d7c 2003-09-30 devnull void
298 76193d7c 2003-09-30 devnull delete(File *f)
299 76193d7c 2003-09-30 devnull {
300 76193d7c 2003-09-30 devnull 	if(downloaded && f->rasp)
301 76193d7c 2003-09-30 devnull 		outTs(Hclose, f->tag);
302 76193d7c 2003-09-30 devnull 	delfile(f);
303 76193d7c 2003-09-30 devnull 	if(f == curfile)
304 76193d7c 2003-09-30 devnull 		current(0);
305 76193d7c 2003-09-30 devnull }
306 76193d7c 2003-09-30 devnull 
307 76193d7c 2003-09-30 devnull void
308 76193d7c 2003-09-30 devnull update(void)
309 76193d7c 2003-09-30 devnull {
310 76193d7c 2003-09-30 devnull 	int i, anymod;
311 76193d7c 2003-09-30 devnull 	File *f;
312 76193d7c 2003-09-30 devnull 
313 76193d7c 2003-09-30 devnull 	settempfile();
314 76193d7c 2003-09-30 devnull 	for(anymod = i=0; i<tempfile.nused; i++){
315 76193d7c 2003-09-30 devnull 		f = tempfile.filepptr[i];
316 76193d7c 2003-09-30 devnull 		if(f==cmd)	/* cmd gets done in main() */
317 76193d7c 2003-09-30 devnull 			continue;
318 76193d7c 2003-09-30 devnull 		if(f->deleted) {
319 76193d7c 2003-09-30 devnull 			delete(f);
320 76193d7c 2003-09-30 devnull 			continue;
321 76193d7c 2003-09-30 devnull 		}
322 76193d7c 2003-09-30 devnull 		if(f->seq==seq && fileupdate(f, FALSE, downloaded))
323 76193d7c 2003-09-30 devnull 			anymod++;
324 76193d7c 2003-09-30 devnull 		if(f->rasp)
325 76193d7c 2003-09-30 devnull 			telldot(f);
326 76193d7c 2003-09-30 devnull 	}
327 76193d7c 2003-09-30 devnull 	if(anymod)
328 76193d7c 2003-09-30 devnull 		seq++;
329 76193d7c 2003-09-30 devnull }
330 76193d7c 2003-09-30 devnull 
331 76193d7c 2003-09-30 devnull File *
332 76193d7c 2003-09-30 devnull current(File *f)
333 76193d7c 2003-09-30 devnull {
334 76193d7c 2003-09-30 devnull 	return curfile = f;
335 76193d7c 2003-09-30 devnull }
336 76193d7c 2003-09-30 devnull 
337 76193d7c 2003-09-30 devnull void
338 76193d7c 2003-09-30 devnull edit(File *f, int cmd)
339 76193d7c 2003-09-30 devnull {
340 76193d7c 2003-09-30 devnull 	int empty = TRUE;
341 76193d7c 2003-09-30 devnull 	Posn p;
342 76193d7c 2003-09-30 devnull 	int nulls;
343 76193d7c 2003-09-30 devnull 
344 76193d7c 2003-09-30 devnull 	if(cmd == 'r')
345 76193d7c 2003-09-30 devnull 		logdelete(f, addr.r.p1, addr.r.p2);
346 76193d7c 2003-09-30 devnull 	if(cmd=='e' || cmd=='I'){
347 522b0689 2003-09-30 devnull 		logdelete(f, (Posn)0, f->b.nc);
348 522b0689 2003-09-30 devnull 		addr.r.p2 = f->b.nc;
349 522b0689 2003-09-30 devnull 	}else if(f->b.nc!=0 || (f->name.s[0] && Strcmp(&genstr, &f->name)!=0))
350 76193d7c 2003-09-30 devnull 		empty = FALSE;
351 76193d7c 2003-09-30 devnull 	if((io = open(genc, OREAD))<0) {
352 76193d7c 2003-09-30 devnull 		if (curfile && curfile->unread)
353 76193d7c 2003-09-30 devnull 			curfile->unread = FALSE;
354 76193d7c 2003-09-30 devnull 		error_r(Eopen, genc);
355 76193d7c 2003-09-30 devnull 	}
356 76193d7c 2003-09-30 devnull 	p = readio(f, &nulls, empty, TRUE);
357 76193d7c 2003-09-30 devnull 	closeio((cmd=='e' || cmd=='I')? -1 : p);
358 76193d7c 2003-09-30 devnull 	if(cmd == 'r')
359 76193d7c 2003-09-30 devnull 		f->ndot.r.p1 = addr.r.p2, f->ndot.r.p2 = addr.r.p2+p;
360 76193d7c 2003-09-30 devnull 	else
361 76193d7c 2003-09-30 devnull 		f->ndot.r.p1 = f->ndot.r.p2 = 0;
362 76193d7c 2003-09-30 devnull 	f->closeok = empty;
363 76193d7c 2003-09-30 devnull 	if (quitok)
364 76193d7c 2003-09-30 devnull 		quitok = empty;
365 76193d7c 2003-09-30 devnull 	else
366 76193d7c 2003-09-30 devnull 		quitok = FALSE;
367 76193d7c 2003-09-30 devnull 	state(f, empty && !nulls? Clean : Dirty);
368 76193d7c 2003-09-30 devnull 	if(empty && !nulls)
369 76193d7c 2003-09-30 devnull 		f->cleanseq = f->seq;
370 76193d7c 2003-09-30 devnull 	if(cmd == 'e')
371 76193d7c 2003-09-30 devnull 		filename(f);
372 76193d7c 2003-09-30 devnull }
373 76193d7c 2003-09-30 devnull 
374 76193d7c 2003-09-30 devnull int
375 76193d7c 2003-09-30 devnull getname(File *f, String *s, int save)
376 76193d7c 2003-09-30 devnull {
377 76193d7c 2003-09-30 devnull 	int c, i;
378 76193d7c 2003-09-30 devnull 
379 76193d7c 2003-09-30 devnull 	Strzero(&genstr);
380 76193d7c 2003-09-30 devnull 	if(genc){
381 76193d7c 2003-09-30 devnull 		free(genc);
382 76193d7c 2003-09-30 devnull 		genc = 0;
383 76193d7c 2003-09-30 devnull 	}
384 76193d7c 2003-09-30 devnull 	if(s==0 || (c = s->s[0])==0){		/* no name provided */
385 76193d7c 2003-09-30 devnull 		if(f)
386 76193d7c 2003-09-30 devnull 			Strduplstr(&genstr, &f->name);
387 76193d7c 2003-09-30 devnull 		goto Return;
388 76193d7c 2003-09-30 devnull 	}
389 76193d7c 2003-09-30 devnull 	if(c!=' ' && c!='\t')
390 76193d7c 2003-09-30 devnull 		error(Eblank);
391 76193d7c 2003-09-30 devnull 	for(i=0; (c=s->s[i])==' ' || c=='\t'; i++)
392 76193d7c 2003-09-30 devnull 		;
393 76193d7c 2003-09-30 devnull 	while(s->s[i] > ' ')
394 76193d7c 2003-09-30 devnull 		Straddc(&genstr, s->s[i++]);
395 76193d7c 2003-09-30 devnull 	if(s->s[i])
396 76193d7c 2003-09-30 devnull 		error(Enewline);
397 76193d7c 2003-09-30 devnull 	fixname(&genstr);
398 76193d7c 2003-09-30 devnull 	if(f && (save || f->name.s[0]==0)){
399 76193d7c 2003-09-30 devnull 		logsetname(f, &genstr);
400 76193d7c 2003-09-30 devnull 		if(Strcmp(&f->name, &genstr)){
401 76193d7c 2003-09-30 devnull 			quitok = f->closeok = FALSE;
402 76193d7c 2003-09-30 devnull 			f->qidpath = 0;
403 76193d7c 2003-09-30 devnull 			f->mtime = 0;
404 76193d7c 2003-09-30 devnull 			state(f, Dirty); /* if it's 'e', fix later */
405 76193d7c 2003-09-30 devnull 		}
406 76193d7c 2003-09-30 devnull 	}
407 76193d7c 2003-09-30 devnull     Return:
408 76193d7c 2003-09-30 devnull 	genc = Strtoc(&genstr);
409 76193d7c 2003-09-30 devnull 	i = genstr.n;
410 76193d7c 2003-09-30 devnull 	if(i && genstr.s[i-1]==0)
411 76193d7c 2003-09-30 devnull 		i--;
412 76193d7c 2003-09-30 devnull 	return i;	/* strlen(name) */
413 76193d7c 2003-09-30 devnull }
414 76193d7c 2003-09-30 devnull 
415 76193d7c 2003-09-30 devnull void
416 76193d7c 2003-09-30 devnull filename(File *f)
417 76193d7c 2003-09-30 devnull {
418 76193d7c 2003-09-30 devnull 	if(genc)
419 76193d7c 2003-09-30 devnull 		free(genc);
420 76193d7c 2003-09-30 devnull 	genc = Strtoc(&genstr);
421 76193d7c 2003-09-30 devnull 	dprint("%c%c%c %s\n", " '"[f->mod],
422 76193d7c 2003-09-30 devnull 		"-+"[f->rasp!=0], " ."[f==curfile], genc);
423 76193d7c 2003-09-30 devnull }
424 76193d7c 2003-09-30 devnull 
425 76193d7c 2003-09-30 devnull void
426 76193d7c 2003-09-30 devnull undostep(File *f, int isundo)
427 76193d7c 2003-09-30 devnull {
428 76193d7c 2003-09-30 devnull 	uint p1, p2;
429 76193d7c 2003-09-30 devnull 	int mod;
430 76193d7c 2003-09-30 devnull 
431 76193d7c 2003-09-30 devnull 	mod = f->mod;
432 76193d7c 2003-09-30 devnull 	fileundo(f, isundo, 1, &p1, &p2, TRUE);
433 76193d7c 2003-09-30 devnull 	f->ndot = f->dot;
434 76193d7c 2003-09-30 devnull 	if(f->mod){
435 76193d7c 2003-09-30 devnull 		f->closeok = 0;
436 76193d7c 2003-09-30 devnull 		quitok = 0;
437 76193d7c 2003-09-30 devnull 	}else
438 76193d7c 2003-09-30 devnull 		f->closeok = 1;
439 76193d7c 2003-09-30 devnull 
440 76193d7c 2003-09-30 devnull 	if(f->mod != mod){
441 76193d7c 2003-09-30 devnull 		f->mod = mod;
442 76193d7c 2003-09-30 devnull 		if(mod)
443 76193d7c 2003-09-30 devnull 			mod = Clean;
444 76193d7c 2003-09-30 devnull 		else
445 76193d7c 2003-09-30 devnull 			mod = Dirty;
446 76193d7c 2003-09-30 devnull 		state(f, mod);
447 76193d7c 2003-09-30 devnull 	}
448 76193d7c 2003-09-30 devnull }
449 76193d7c 2003-09-30 devnull 
450 76193d7c 2003-09-30 devnull int
451 76193d7c 2003-09-30 devnull undo(int isundo)
452 76193d7c 2003-09-30 devnull {
453 76193d7c 2003-09-30 devnull 	File *f;
454 76193d7c 2003-09-30 devnull 	int i;
455 76193d7c 2003-09-30 devnull 	Mod max;
456 76193d7c 2003-09-30 devnull 
457 76193d7c 2003-09-30 devnull 	max = undoseq(curfile, isundo);
458 76193d7c 2003-09-30 devnull 	if(max == 0)
459 76193d7c 2003-09-30 devnull 		return 0;
460 76193d7c 2003-09-30 devnull 	settempfile();
461 76193d7c 2003-09-30 devnull 	for(i = 0; i<tempfile.nused; i++){
462 76193d7c 2003-09-30 devnull 		f = tempfile.filepptr[i];
463 76193d7c 2003-09-30 devnull 		if(f!=cmd && undoseq(f, isundo)==max)
464 76193d7c 2003-09-30 devnull 			undostep(f, isundo);
465 76193d7c 2003-09-30 devnull 	}
466 76193d7c 2003-09-30 devnull 	return 1;
467 76193d7c 2003-09-30 devnull }
468 76193d7c 2003-09-30 devnull 
469 76193d7c 2003-09-30 devnull int
470 76193d7c 2003-09-30 devnull readcmd(String *s)
471 76193d7c 2003-09-30 devnull {
472 76193d7c 2003-09-30 devnull 	int retcode;
473 76193d7c 2003-09-30 devnull 
474 76193d7c 2003-09-30 devnull 	if(flist != 0)
475 76193d7c 2003-09-30 devnull 		fileclose(flist);
476 76193d7c 2003-09-30 devnull 	flist = fileopen();
477 76193d7c 2003-09-30 devnull 
478 522b0689 2003-09-30 devnull 	addr.r.p1 = 0, addr.r.p2 = flist->b.nc;
479 76193d7c 2003-09-30 devnull 	retcode = plan9(flist, '<', s, FALSE);
480 76193d7c 2003-09-30 devnull 	fileupdate(flist, FALSE, FALSE);
481 76193d7c 2003-09-30 devnull 	flist->seq = 0;
482 522b0689 2003-09-30 devnull 	if (flist->b.nc > BLOCKSIZE)
483 76193d7c 2003-09-30 devnull 		error(Etoolong);
484 76193d7c 2003-09-30 devnull 	Strzero(&genstr);
485 522b0689 2003-09-30 devnull 	Strinsure(&genstr, flist->b.nc);
486 522b0689 2003-09-30 devnull 	bufread(&flist->b, (Posn)0, genbuf, flist->b.nc);
487 522b0689 2003-09-30 devnull 	memmove(genstr.s, genbuf, flist->b.nc*RUNESIZE);
488 522b0689 2003-09-30 devnull 	genstr.n = flist->b.nc;
489 76193d7c 2003-09-30 devnull 	Straddc(&genstr, '\0');
490 76193d7c 2003-09-30 devnull 	return retcode;
491 76193d7c 2003-09-30 devnull }
492 76193d7c 2003-09-30 devnull 
493 76193d7c 2003-09-30 devnull void
494 76193d7c 2003-09-30 devnull getcurwd(void)
495 76193d7c 2003-09-30 devnull {
496 76193d7c 2003-09-30 devnull 	String *t;
497 76193d7c 2003-09-30 devnull 	char buf[256];
498 76193d7c 2003-09-30 devnull 
499 76193d7c 2003-09-30 devnull 	buf[0] = 0;
500 76193d7c 2003-09-30 devnull 	getwd(buf, sizeof(buf));
501 76193d7c 2003-09-30 devnull 	t = tmpcstr(buf);
502 76193d7c 2003-09-30 devnull 	Strduplstr(&curwd, t);
503 76193d7c 2003-09-30 devnull 	freetmpstr(t);
504 76193d7c 2003-09-30 devnull 	if(curwd.n == 0)
505 76193d7c 2003-09-30 devnull 		warn(Wpwd);
506 76193d7c 2003-09-30 devnull 	else if(curwd.s[curwd.n-1] != '/')
507 76193d7c 2003-09-30 devnull 		Straddc(&curwd, '/');
508 76193d7c 2003-09-30 devnull }
509 76193d7c 2003-09-30 devnull 
510 76193d7c 2003-09-30 devnull void
511 76193d7c 2003-09-30 devnull cd(String *str)
512 76193d7c 2003-09-30 devnull {
513 76193d7c 2003-09-30 devnull 	int i, fd;
514 76193d7c 2003-09-30 devnull 	char *s;
515 76193d7c 2003-09-30 devnull 	File *f;
516 76193d7c 2003-09-30 devnull 	String owd;
517 76193d7c 2003-09-30 devnull 
518 76193d7c 2003-09-30 devnull 	getcurwd();
519 76193d7c 2003-09-30 devnull 	if(getname((File *)0, str, FALSE))
520 76193d7c 2003-09-30 devnull 		s = genc;
521 76193d7c 2003-09-30 devnull 	else
522 76193d7c 2003-09-30 devnull 		s = home;
523 76193d7c 2003-09-30 devnull 	if(chdir(s))
524 76193d7c 2003-09-30 devnull 		syserror("chdir");
525 76193d7c 2003-09-30 devnull 	fd = open("/dev/wdir", OWRITE);
526 76193d7c 2003-09-30 devnull 	if(fd > 0)
527 76193d7c 2003-09-30 devnull 		write(fd, s, strlen(s));
528 76193d7c 2003-09-30 devnull 	dprint("!\n");
529 76193d7c 2003-09-30 devnull 	Strinit(&owd);
530 76193d7c 2003-09-30 devnull 	Strduplstr(&owd, &curwd);
531 76193d7c 2003-09-30 devnull 	getcurwd();
532 76193d7c 2003-09-30 devnull 	settempfile();
533 9bc519d6 2006-06-26 devnull 	/*
534 9bc519d6 2006-06-26 devnull 	 * Two passes so that if we have open
535 9bc519d6 2006-06-26 devnull 	 * /a/foo.c and /b/foo.c and cd from /b to /a,
536 9bc519d6 2006-06-26 devnull 	 * we don't ever have two foo.c simultaneously.
537 9bc519d6 2006-06-26 devnull 	 */
538 76193d7c 2003-09-30 devnull 	for(i=0; i<tempfile.nused; i++){
539 76193d7c 2003-09-30 devnull 		f = tempfile.filepptr[i];
540 76193d7c 2003-09-30 devnull 		if(f!=cmd && f->name.s[0]!='/' && f->name.s[0]!=0){
541 76193d7c 2003-09-30 devnull 			Strinsert(&f->name, &owd, (Posn)0);
542 76193d7c 2003-09-30 devnull 			fixname(&f->name);
543 76193d7c 2003-09-30 devnull 			sortname(f);
544 9bc519d6 2006-06-26 devnull 		}
545 9bc519d6 2006-06-26 devnull 	}
546 9bc519d6 2006-06-26 devnull 	for(i=0; i<tempfile.nused; i++){
547 9bc519d6 2006-06-26 devnull 		f = tempfile.filepptr[i];
548 9bc519d6 2006-06-26 devnull 		if(f != cmd && Strispre(&curwd, &f->name)){
549 76193d7c 2003-09-30 devnull 			fixname(&f->name);
550 76193d7c 2003-09-30 devnull 			sortname(f);
551 76193d7c 2003-09-30 devnull 		}
552 76193d7c 2003-09-30 devnull 	}
553 76193d7c 2003-09-30 devnull 	Strclose(&owd);
554 76193d7c 2003-09-30 devnull }
555 76193d7c 2003-09-30 devnull 
556 76193d7c 2003-09-30 devnull int
557 76193d7c 2003-09-30 devnull loadflist(String *s)
558 76193d7c 2003-09-30 devnull {
559 76193d7c 2003-09-30 devnull 	int c, i;
560 76193d7c 2003-09-30 devnull 
561 76193d7c 2003-09-30 devnull 	c = s->s[0];
562 76193d7c 2003-09-30 devnull 	for(i = 0; s->s[i]==' ' || s->s[i]=='\t'; i++)
563 76193d7c 2003-09-30 devnull 		;
564 76193d7c 2003-09-30 devnull 	if((c==' ' || c=='\t') && s->s[i]!='\n'){
565 76193d7c 2003-09-30 devnull 		if(s->s[i]=='<'){
566 76193d7c 2003-09-30 devnull 			Strdelete(s, 0L, (long)i+1);
567 76193d7c 2003-09-30 devnull 			readcmd(s);
568 76193d7c 2003-09-30 devnull 		}else{
569 76193d7c 2003-09-30 devnull 			Strzero(&genstr);
570 76193d7c 2003-09-30 devnull 			while((c = s->s[i++]) && c!='\n')
571 76193d7c 2003-09-30 devnull 				Straddc(&genstr, c);
572 76193d7c 2003-09-30 devnull 			Straddc(&genstr, '\0');
573 76193d7c 2003-09-30 devnull 		}
574 76193d7c 2003-09-30 devnull 	}else{
575 76193d7c 2003-09-30 devnull 		if(c != '\n')
576 76193d7c 2003-09-30 devnull 			error(Eblank);
577 76193d7c 2003-09-30 devnull 		Strdupl(&genstr, empty);
578 76193d7c 2003-09-30 devnull 	}
579 76193d7c 2003-09-30 devnull 	if(genc)
580 76193d7c 2003-09-30 devnull 		free(genc);
581 76193d7c 2003-09-30 devnull 	genc = Strtoc(&genstr);
582 76193d7c 2003-09-30 devnull 	return genstr.s[0];
583 76193d7c 2003-09-30 devnull }
584 76193d7c 2003-09-30 devnull 
585 76193d7c 2003-09-30 devnull File *
586 76193d7c 2003-09-30 devnull readflist(int readall, int delete)
587 76193d7c 2003-09-30 devnull {
588 76193d7c 2003-09-30 devnull 	Posn i;
589 76193d7c 2003-09-30 devnull 	int c;
590 76193d7c 2003-09-30 devnull 	File *f;
591 76193d7c 2003-09-30 devnull 	String t;
592 76193d7c 2003-09-30 devnull 
593 76193d7c 2003-09-30 devnull 	Strinit(&t);
594 76193d7c 2003-09-30 devnull 	for(i=0,f=0; f==0 || readall || delete; i++){	/* ++ skips blank */
595 76193d7c 2003-09-30 devnull 		Strdelete(&genstr, (Posn)0, i);
596 76193d7c 2003-09-30 devnull 		for(i=0; (c = genstr.s[i])==' ' || c=='\t' || c=='\n'; i++)
597 76193d7c 2003-09-30 devnull 			;
598 76193d7c 2003-09-30 devnull 		if(i >= genstr.n)
599 76193d7c 2003-09-30 devnull 			break;
600 76193d7c 2003-09-30 devnull 		Strdelete(&genstr, (Posn)0, i);
601 76193d7c 2003-09-30 devnull 		for(i=0; (c=genstr.s[i]) && c!=' ' && c!='\t' && c!='\n'; i++)
602 76193d7c 2003-09-30 devnull 			;
603 76193d7c 2003-09-30 devnull 
604 76193d7c 2003-09-30 devnull 		if(i == 0)
605 76193d7c 2003-09-30 devnull 			break;
606 76193d7c 2003-09-30 devnull 		genstr.s[i] = 0;
607 76193d7c 2003-09-30 devnull 		Strduplstr(&t, tmprstr(genstr.s, i+1));
608 76193d7c 2003-09-30 devnull 		fixname(&t);
609 76193d7c 2003-09-30 devnull 		f = lookfile(&t);
610 76193d7c 2003-09-30 devnull 		if(delete){
611 76193d7c 2003-09-30 devnull 			if(f == 0)
612 76193d7c 2003-09-30 devnull 				warn_S(Wfile, &t);
613 76193d7c 2003-09-30 devnull 			else
614 76193d7c 2003-09-30 devnull 				trytoclose(f);
615 76193d7c 2003-09-30 devnull 		}else if(f==0 && readall)
616 76193d7c 2003-09-30 devnull 			logsetname(f = newfile(), &t);
617 76193d7c 2003-09-30 devnull 	}
618 76193d7c 2003-09-30 devnull 	Strclose(&t);
619 76193d7c 2003-09-30 devnull 	return f;
620 76193d7c 2003-09-30 devnull }
621 76193d7c 2003-09-30 devnull 
622 76193d7c 2003-09-30 devnull File *
623 76193d7c 2003-09-30 devnull tofile(String *s)
624 76193d7c 2003-09-30 devnull {
625 76193d7c 2003-09-30 devnull 	File *f;
626 76193d7c 2003-09-30 devnull 
627 76193d7c 2003-09-30 devnull 	if(s->s[0] != ' ')
628 76193d7c 2003-09-30 devnull 		error(Eblank);
629 76193d7c 2003-09-30 devnull 	if(loadflist(s) == 0){
630 76193d7c 2003-09-30 devnull 		f = lookfile(&genstr);	/* empty string ==> nameless file */
631 76193d7c 2003-09-30 devnull 		if(f == 0)
632 76193d7c 2003-09-30 devnull 			error_s(Emenu, genc);
633 76193d7c 2003-09-30 devnull 	}else if((f=readflist(FALSE, FALSE)) == 0)
634 76193d7c 2003-09-30 devnull 		error_s(Emenu, genc);
635 76193d7c 2003-09-30 devnull 	return current(f);
636 76193d7c 2003-09-30 devnull }
637 76193d7c 2003-09-30 devnull 
638 76193d7c 2003-09-30 devnull File *
639 76193d7c 2003-09-30 devnull getfile(String *s)
640 76193d7c 2003-09-30 devnull {
641 76193d7c 2003-09-30 devnull 	File *f;
642 76193d7c 2003-09-30 devnull 
643 76193d7c 2003-09-30 devnull 	if(loadflist(s) == 0)
644 76193d7c 2003-09-30 devnull 		logsetname(f = newfile(), &genstr);
645 76193d7c 2003-09-30 devnull 	else if((f=readflist(TRUE, FALSE)) == 0)
646 76193d7c 2003-09-30 devnull 		error(Eblank);
647 76193d7c 2003-09-30 devnull 	return current(f);
648 76193d7c 2003-09-30 devnull }
649 76193d7c 2003-09-30 devnull 
650 76193d7c 2003-09-30 devnull void
651 76193d7c 2003-09-30 devnull closefiles(File *f, String *s)
652 76193d7c 2003-09-30 devnull {
653 76193d7c 2003-09-30 devnull 	if(s->s[0] == 0){
654 76193d7c 2003-09-30 devnull 		if(f == 0)
655 76193d7c 2003-09-30 devnull 			error(Enofile);
656 76193d7c 2003-09-30 devnull 		trytoclose(f);
657 76193d7c 2003-09-30 devnull 		return;
658 76193d7c 2003-09-30 devnull 	}
659 76193d7c 2003-09-30 devnull 	if(s->s[0] != ' ')
660 76193d7c 2003-09-30 devnull 		error(Eblank);
661 76193d7c 2003-09-30 devnull 	if(loadflist(s) == 0)
662 76193d7c 2003-09-30 devnull 		error(Enewline);
663 76193d7c 2003-09-30 devnull 	readflist(FALSE, TRUE);
664 76193d7c 2003-09-30 devnull }
665 76193d7c 2003-09-30 devnull 
666 76193d7c 2003-09-30 devnull void
667 76193d7c 2003-09-30 devnull copy(File *f, Address addr2)
668 76193d7c 2003-09-30 devnull {
669 76193d7c 2003-09-30 devnull 	Posn p;
670 76193d7c 2003-09-30 devnull 	int ni;
671 76193d7c 2003-09-30 devnull 	for(p=addr.r.p1; p<addr.r.p2; p+=ni){
672 76193d7c 2003-09-30 devnull 		ni = addr.r.p2-p;
673 76193d7c 2003-09-30 devnull 		if(ni > BLOCKSIZE)
674 76193d7c 2003-09-30 devnull 			ni = BLOCKSIZE;
675 522b0689 2003-09-30 devnull 		bufread(&f->b, p, genbuf, ni);
676 76193d7c 2003-09-30 devnull 		loginsert(addr2.f, addr2.r.p2, tmprstr(genbuf, ni)->s, ni);
677 76193d7c 2003-09-30 devnull 	}
678 76193d7c 2003-09-30 devnull 	addr2.f->ndot.r.p2 = addr2.r.p2+(f->dot.r.p2-f->dot.r.p1);
679 76193d7c 2003-09-30 devnull 	addr2.f->ndot.r.p1 = addr2.r.p2;
680 76193d7c 2003-09-30 devnull }
681 76193d7c 2003-09-30 devnull 
682 76193d7c 2003-09-30 devnull void
683 76193d7c 2003-09-30 devnull move(File *f, Address addr2)
684 76193d7c 2003-09-30 devnull {
685 76193d7c 2003-09-30 devnull 	if(addr.r.p2 <= addr2.r.p2){
686 76193d7c 2003-09-30 devnull 		logdelete(f, addr.r.p1, addr.r.p2);
687 76193d7c 2003-09-30 devnull 		copy(f, addr2);
688 76193d7c 2003-09-30 devnull 	}else if(addr.r.p1 >= addr2.r.p2){
689 76193d7c 2003-09-30 devnull 		copy(f, addr2);
690 76193d7c 2003-09-30 devnull 		logdelete(f, addr.r.p1, addr.r.p2);
691 76193d7c 2003-09-30 devnull 	}else
692 76193d7c 2003-09-30 devnull 		error(Eoverlap);
693 76193d7c 2003-09-30 devnull }
694 76193d7c 2003-09-30 devnull 
695 76193d7c 2003-09-30 devnull Posn
696 76193d7c 2003-09-30 devnull nlcount(File *f, Posn p0, Posn p1)
697 76193d7c 2003-09-30 devnull {
698 76193d7c 2003-09-30 devnull 	Posn nl = 0;
699 76193d7c 2003-09-30 devnull 
700 76193d7c 2003-09-30 devnull 	while(p0 < p1)
701 76193d7c 2003-09-30 devnull 		if(filereadc(f, p0++)=='\n')
702 76193d7c 2003-09-30 devnull 			nl++;
703 76193d7c 2003-09-30 devnull 	return nl;
704 76193d7c 2003-09-30 devnull }
705 76193d7c 2003-09-30 devnull 
706 76193d7c 2003-09-30 devnull void
707 76193d7c 2003-09-30 devnull printposn(File *f, int charsonly)
708 76193d7c 2003-09-30 devnull {
709 76193d7c 2003-09-30 devnull 	Posn l1, l2;
710 76193d7c 2003-09-30 devnull 
711 76193d7c 2003-09-30 devnull 	if(!charsonly){
712 76193d7c 2003-09-30 devnull 		l1 = 1+nlcount(f, (Posn)0, addr.r.p1);
713 76193d7c 2003-09-30 devnull 		l2 = l1+nlcount(f, addr.r.p1, addr.r.p2);
714 76193d7c 2003-09-30 devnull 		/* check if addr ends with '\n' */
715 76193d7c 2003-09-30 devnull 		if(addr.r.p2>0 && addr.r.p2>addr.r.p1 && filereadc(f, addr.r.p2-1)=='\n')
716 76193d7c 2003-09-30 devnull 			--l2;
717 76193d7c 2003-09-30 devnull 		dprint("%lud", l1);
718 76193d7c 2003-09-30 devnull 		if(l2 != l1)
719 76193d7c 2003-09-30 devnull 			dprint(",%lud", l2);
720 76193d7c 2003-09-30 devnull 		dprint("; ");
721 76193d7c 2003-09-30 devnull 	}
722 76193d7c 2003-09-30 devnull 	dprint("#%lud", addr.r.p1);
723 76193d7c 2003-09-30 devnull 	if(addr.r.p2 != addr.r.p1)
724 76193d7c 2003-09-30 devnull 		dprint(",#%lud", addr.r.p2);
725 76193d7c 2003-09-30 devnull 	dprint("\n");
726 76193d7c 2003-09-30 devnull }
727 76193d7c 2003-09-30 devnull 
728 76193d7c 2003-09-30 devnull void
729 76193d7c 2003-09-30 devnull settempfile(void)
730 76193d7c 2003-09-30 devnull {
731 76193d7c 2003-09-30 devnull 	if(tempfile.nalloc < file.nused){
732 2c0f3733 2006-04-20 devnull 		if(tempfile.filepptr)
733 2c0f3733 2006-04-20 devnull 			free(tempfile.filepptr);
734 2c0f3733 2006-04-20 devnull 		tempfile.filepptr = emalloc(sizeof(File*)*file.nused);
735 76193d7c 2003-09-30 devnull 		tempfile.nalloc = file.nused;
736 76193d7c 2003-09-30 devnull 	}
737 2c0f3733 2006-04-20 devnull 	memmove(tempfile.filepptr, file.filepptr, sizeof(File*)*file.nused);
738 76193d7c 2003-09-30 devnull 	tempfile.nused = file.nused;
739 76193d7c 2003-09-30 devnull }