void
setNAEOL(void)
{
setnoaddr();
eol();
}
void
callunix(void)
{
int c, pid;
Rune rune;
char buf[512];
char *p;
setnoaddr();
p = buf;
while((c=getchr()) != EOF && c != '\n')
if(p < &buf[sizeof(buf) - 6]) {
rune = c;
p += runetochar(p, &rune);
}
*p = 0;
pid = fork();
if(pid == 0) {
execlp("rc", "rc", "-c", buf, (char*)0);
sysfatal("exec failed: %r");
exits("execl failed");
}
waiting = 1;
while(waitpid() != pid)
;
waiting = 0;
if(vflag)
putst("!");
}
void callunix(void)
{
SIG_TYP savint;
int pid, rpid;
int retcode;
setnoaddr();
if ((pid = fork()) == 0) {
signal(SIGHUP, oldhup);
signal(SIGQUIT, oldquit);
execl("/bin/sh", "sh", "-t", 0);
exit(0100);
}
savint = signal(SIGINT, SIG_IGN);
while ((rpid = wait(&retcode)) != pid && rpid != -1)
;
signal(SIGINT, savint);
if (vflag) {
puts("!");
}
}
void
commands(void)
{
int *a1, c, temp;
char lastsep;
Dir *d;
for(;;) {
if(pflag) {
pflag = 0;
addr1 = addr2 = dot;
printcom();
}
c = '\n';
for(addr1 = 0;;) {
lastsep = c;
a1 = address();
c = getchr();
if(c != ',' && c != ';')
break;
if(lastsep == ',')
error(Q);
if(a1 == 0) {
a1 = zero+1;
if(a1 > dol)
a1--;
}
addr1 = a1;
if(c == ';')
dot = a1;
}
if(lastsep != '\n' && a1 == 0)
a1 = dol;
if((addr2=a1) == 0) {
given = 0;
addr2 = dot;
} else
given = 1;
if(addr1 == 0)
addr1 = addr2;
switch(c) {
case 'a':
add(0);
continue;
case 'b':
nonzero();
browse();
continue;
case 'c':
nonzero();
newline();
rdelete(addr1, addr2);
append(gettty, addr1-1);
continue;
case 'd':
nonzero();
newline();
rdelete(addr1, addr2);
continue;
case 'E':
fchange = 0;
c = 'e';
case 'e':
setnoaddr();
if(vflag && fchange) {
fchange = 0;
error(Q);
}
filename(c);
init();
addr2 = zero;
goto caseread;
case 'f':
setnoaddr();
filename(c);
putst(savedfile);
continue;
case 'g':
global(1);
continue;
case 'i':
add(-1);
continue;
case 'j':
if(!given)
addr2++;
newline();
join();
continue;
case 'k':
nonzero();
c = getchr();
if(c < 'a' || c > 'z')
error(Q);
newline();
names[c-'a'] = *addr2 & ~01;
anymarks |= 01;
continue;
case 'm':
move(0);
continue;
case 'n':
listn++;
newline();
printcom();
continue;
case '\n':
if(a1==0) {
a1 = dot+1;
addr2 = a1;
addr1 = a1;
}
if(lastsep==';')
addr1 = a1;
printcom();
continue;
case 'l':
listf++;
case 'p':
case 'P':
newline();
printcom();
continue;
case 'Q':
fchange = 0;
case 'q':
setnoaddr();
newline();
quit();
case 'r':
filename(c);
caseread:
if((io=open(file, OREAD)) < 0) {
lastc = '\n';
error(file);
}
if((d = dirfstat(io)) != nil){
if(d->mode & DMAPPEND)
print("warning: %s is append only\n", file);
free(d);
}
Binit(&iobuf, io, OREAD);
setwide();
squeeze(0);
c = zero != dol;
append(getfile, addr2);
exfile(OREAD);
fchange = c;
continue;
case 's':
nonzero();
substitute(globp != 0);
continue;
case 't':
move(1);
continue;
case 'u':
nonzero();
newline();
if((*addr2&~01) != subnewa)
error(Q);
*addr2 = subolda;
dot = addr2;
continue;
case 'v':
global(0);
continue;
case 'W':
wrapp++;
case 'w':
setwide();
squeeze(dol>zero);
temp = getchr();
if(temp != 'q' && temp != 'Q') {
peekc = temp;
temp = 0;
}
filename(c);
if(!wrapp ||
((io = open(file, OWRITE)) == -1) ||
((seek(io, 0L, 2)) == -1))
if((io = create(file, OWRITE, 0666)) < 0)
error(file);
Binit(&iobuf, io, OWRITE);
wrapp = 0;
if(dol > zero)
putfile();
exfile(OWRITE);
if(addr1<=zero+1 && addr2==dol)
fchange = 0;
if(temp == 'Q')
fchange = 0;
if(temp)
quit();
continue;
case '=':
setwide();
squeeze(0);
newline();
count = addr2 - zero;
putd();
putchr('\n');
continue;
case '!':
callunix();
continue;
case EOF:
return;
}
error(Q);
}
}
set()
{
register char *cp;
register struct option *op;
register int c;
bool no;
extern short ospeed;
setnoaddr();
if (skipend()) {
if (peekchar() != EOF)
ignchar();
propts();
return;
}
do {
cp = optname;
do {
if (cp < &optname[ONMSZ - 2])
*cp++ = getchar();
} while (isalnum(peekchar()));
*cp = 0;
cp = optname;
if (eq("all", cp)) {
if (inopen)
pofix();
prall();
goto next;
}
no = 0;
if (cp[0] == 'n' && cp[1] == 'o') {
cp += 2;
no++;
}
/* Implement w300, w1200, and w9600 specially */
if (eq(cp, "w300")) {
if (ospeed >= B1200) {
dontset:
ignore(getchar()); /* = */
ignore(getnum()); /* value */
continue;
}
cp = "window";
} else if (eq(cp, "w1200")) {
if (ospeed < B1200 || ospeed >= B2400)
goto dontset;
cp = "window";
} else if (eq(cp, "w9600")) {
if (ospeed < B2400)
goto dontset;
cp = "window";
}
for (op = options; op < &options[NOPTS]; op++)
if (eq(op->oname, cp) || op->oabbrev && eq(op->oabbrev, cp))
break;
if (op->oname == 0)
serror("%s: No such option@- 'set all' gives all option values", cp);
c = skipwh();
if (peekchar() == '?') {
ignchar();
printone:
propt(op);
noonl();
goto next;
}
if (op->otype == ONOFF) {
op->ovalue = 1 - no;
if (op == &options[PROMPT])
oprompt = 1 - no;
goto next;
}
if (no)
serror("Option %s is not a toggle", op->oname);
if (c != 0 || setend())
goto printone;
if (getchar() != '=')
serror("Missing =@in assignment to option %s", op->oname);
switch (op->otype) {
case NUMERIC:
if (!isdigit(peekchar()))
error("Digits required@after =");
op->ovalue = getnum();
if (value(TABSTOP) <= 0)
value(TABSTOP) = TABS;
if (op == &options[WINDOW]) {
if (value(WINDOW) >= LINES)
value(WINDOW) = LINES-1;
vsetsiz(value(WINDOW));
}
break;
case STRING:
case OTERM:
cp = optname;
while (!setend()) {
if (cp >= &optname[ONMSZ])
error("String too long@in option assignment");
/* adb change: allow whitepace in strings */
if( (*cp = getchar()) == '\\')
if( peekchar() != EOF)
*cp = getchar();
cp++;
}
*cp = 0;
if (op->otype == OTERM) {
/*
* At first glance it seems like we shouldn't care if the terminal type
* is changed inside visual mode, as long as we assume the screen is
* a mess and redraw it. However, it's a much harder problem than that.
* If you happen to change from 1 crt to another that both have the same
* size screen, it's OK. But if the screen size if different, the stuff
* that gets initialized in vop() will be wrong. This could be overcome
* by redoing the initialization, e.g. making the first 90% of vop into
* a subroutine. However, the most useful case is where you forgot to do
* a setenv before you went into the editor and it thinks you're on a dumb
* terminal. Ex treats this like hardcopy and goes into HARDOPEN mode.
* This loses because the first part of vop calls oop in this case.
* The problem is so hard I gave up. I'm not saying it can't be done,
* but I am saying it probably isn't worth the effort.
*/
if (inopen)
error("Can't change type of terminal from within open/visual");
setterm(optname);
} else {
CP(op->osvalue, optname);
op->odefault = 1;
}
break;
}
next:
flush();
} while (!skipend());
eol();
}
static void
commands(void)
{
register Line_t* a1;
register int c;
register int n;
char* s;
int lastsep;
for (;;) {
trap();
if (ed.print & (REG_SUB_LIST|REG_SUB_NUMBER|REG_SUB_PRINT)) {
ed.addr1 = ed.addr2 = ed.dot;
print();
}
if (!ed.global) {
ed.evented = 0;
if (ed.prompt > 0)
sfputr(ed.msg, sfstrbase(ed.buffer.prompt), -1);
}
if ((c = getchr()) == ',' || c == ';') {
ed.given = 1;
ed.addr1 = (lastsep = c) == ',' ? ed.zero + 1 : ed.dot;
a1 = ed.dol;
c = getchr();
}
else {
ed.addr1 = 0;
ed.peekc = c;
c = '\n';
for (;;) {
lastsep = c;
a1 = address();
c = getchr();
if (c != ',' && c != ';')
break;
if (lastsep == ',')
error(2, "invalid address");
if (!a1) {
a1 = ed.zero + 1;
if (a1 > ed.dol)
a1--;
}
ed.addr1 = a1;
if (c == ';')
ed.dot = a1;
}
if (lastsep != '\n' && !a1)
a1 = ed.dol;
}
if (!(ed.addr2 = a1)) {
ed.given = 0;
ed.addr2 = ed.dot;
}
else
ed.given = 1;
if (!ed.addr1)
ed.addr1 = ed.addr2;
switch (c) {
case 'a':
add(0);
continue;
case 'c':
nonzero();
newline();
rdelete(ed.addr1, ed.addr2);
append(getline, ed.addr1 - 1, NiL);
continue;
case 'd':
nonzero();
newline();
rdelete(ed.addr1, ed.addr2);
continue;
case 'E':
ed.modified = 0;
c = 'e';
/*FALLTHROUGH*/
case 'e':
setnoaddr();
if (ed.verbose && ed.modified) {
ed.modified = 0;
error(2, "modified data not written");
}
/*FALLTHROUGH*/
case 'r':
filename(c);
setwide();
squeeze(0);
c = ed.zero != ed.dol;
append(getfile, ed.addr2, NiL);
ed.modified = c;
exfile();
continue;
case 'f':
setnoaddr();
filename(c);
putrec(sfstrbase(ed.buffer.file));
continue;
case 'G':
global(1, 1);
continue;
case 'g':
global(1, 0);
continue;
case 'H':
ed.help = !ed.help;
/*FALLTHROUGH*/
case 'h':
setnoaddr();
newline();
if (ed.help || c == 'h')
sfputr(ed.msg, sfstrbase(ed.buffer.help), '\n');
continue;
case 'i':
add(-1);
continue;
case 'j':
if (!ed.given)
ed.addr2++;
newline();
join();
continue;
case 'k':
nonzero();
if ((c = getchr()) == EOF || (c -= MARK_MIN) < 0 || c >= elementsof(ed.marks))
error(2, "invalid mark");
newline();
ed.addr2->offset |= LINE_MARKED;
ed.marks[c] = ed.addr2->offset & ~LINE_GLOBAL;
ed.marked = 1;
continue;
case 'm':
move(0);
continue;
case 'n':
ed.print |= REG_SUB_NUMBER;
newline();
print();
continue;
case '\n':
if (!a1) {
a1 = ed.dot + 1;
ed.addr2 = a1;
ed.addr1 = a1;
}
if (lastsep == ';')
ed.addr1 = a1;
print();
continue;
case 'l':
ed.print |= REG_SUB_LIST;
/*FALLTHROUGH*/
case 'p':
newline();
print();
continue;
case 'P':
setnoaddr();
s = getrec(ed.buffer.line, '\n', 0);
if (*s || !(ed.prompt = -ed.prompt) && (s = "*")) {
sfstrseek(ed.buffer.prompt, 0, SEEK_SET);
sfputr(ed.buffer.prompt, s, 0);
ed.prompt = 1;
}
continue;
case 'Q':
ed.modified = 0;
/*FALLTHROUGH*/
case 'q':
setnoaddr();
newline();
quit(0);
continue;
case 'S':
setnoaddr();
newline();
s = strchr(usage, '\n') + 5;
sfprintf(ed.msg, "file=\"%s\"%s%s%s prompt=\"%s\" tmp=%lu%s event=%lu version=\"%-.*s\"\n", sfstrbase(ed.buffer.file), ed.modified ? " modified" : "", ed.help ? " help" : "", ed.verbose ? " verbose" : "", sfstrbase(ed.buffer.prompt), ed.tmpoff, ed.tmpoff > BLOCK_TMP ? "[file]" : "", ed.event, strchr(s, '\n') - s, s);
continue;
case 's':
nonzero();
substitute(ed.global != 0);
continue;
case 't':
move(1);
continue;
case 'u':
setnoaddr();
newline();
undo();
continue;
case 'V':
global(0, 1);
continue;
case 'v':
global(0, 0);
continue;
case 'W':
case 'w':
setwide();
squeeze(ed.dol > ed.zero);
if ((n = getchr()) != 'q' && n != 'Q') {
ed.peekc = n;
n = 0;
}
filename(c);
if (ed.dol > ed.zero)
putfile();
exfile();
if (n == 'Q' || ed.addr1 <= ed.zero + 1 && ed.addr2 == ed.dol)
ed.modified = 0;
if (n)
quit(0);
continue;
case 'z':
nonzero();
page();
continue;
case '=':
setwide();
squeeze(0);
newline();
sfprintf(ed.msg, "%d\n", ed.addr2 - ed.zero);
continue;
case '!':
if (ed.restricted)
error(2, "%c: restricted command", c);
shell();
continue;
case '#':
setnoaddr();
getrec(ed.buffer.line, '\n', REC_IGNORE);
continue;
case EOF:
return;
}
error(2, "unknown command");
}
}
/*
* Main loop for command mode command decoding.
* A few commands are executed here, but main function
* is to strip command addresses, do a little address oriented
* processing and call command routines to do the real work.
*/
void
commands(bool noprompt, bool exitoneof)
{
register line *addr;
register int c;
register int lchng;
int given;
int seensemi;
int cnt;
bool hadpr;
resetflav();
nochng();
for (;;) {
/*
* If dot at last command
* ended up at zero, advance to one if there is a such.
*/
if (dot <= zero) {
dot = zero;
if (dol > zero)
dot = one;
}
shudclob = 0;
/*
* If autoprint or trailing print flags,
* print the line at the specified offset
* before the next command.
*/
if (pflag ||
(lchng != chng && value(AUTOPRINT) && !inglobal && !inopen && endline)) {
pflag = 0;
nochng();
if (dol != zero) {
addr1 = addr2 = dot + poffset;
if (addr1 < one || addr1 > dol)
error("Offset out-of-bounds|Offset after command too large");
setdot1();
goto print;
}
}
nochng();
/*
* Print prompt if appropriate.
* If not in global flush output first to prevent
* going into pfast mode unreasonably.
*/
if (inglobal == 0) {
flush();
if (!hush && value(PROMPT) && !globp && !noprompt && endline) {
ex_putchar(':');
hadpr = 1;
}
TSYNC();
}
/*
* Gobble up the address.
* Degenerate addresses yield ".".
*/
addr2 = 0;
given = seensemi = 0;
do {
addr1 = addr2;
addr = address(0);
c = getcd();
if (addr == 0) {
if (c == ',')
addr = dot;
else if (addr1 != 0) {
addr2 = dot;
break;
} else
break;
}
addr2 = addr;
given++;
if (c == ';') {
c = ',';
dot = addr;
seensemi = 1;
}
} while (c == ',');
if (c == '%') {
/* %: same as 1,$ */
addr1 = one;
addr2 = dol;
given = 2;
c = ex_getchar();
}
if (addr1 == 0)
addr1 = addr2;
if (c == ':')
c = ex_getchar();
/*
* Set command name for special character commands.
*/
tailspec(c);
/*
* If called via : escape from open or visual, limit
* the set of available commands here to save work below.
*/
if (inopen) {
if (c=='\n' || c=='\r' || c==CTRL('d') || c==EOF) {
if (addr2)
dot = addr2;
if (c == EOF)
return;
continue;
}
if (any(c, "o"))
notinvis:
tailprim(Command, 1, 1);
}
switch (c) {
case 'a':
switch(peekchar()) {
case 'b':
/* abbreviate */
tail("abbreviate");
setnoaddr();
mapcmd(0, 1);
anyabbrs = 1;
continue;
case 'r':
/* args */
tail("args");
setnoaddr();
eol();
pargs();
continue;
}
/* append */
if (inopen)
goto notinvis;
tail("append");
setdot();
aiflag = exclam();
ex_newline();
vmacchng(0);
deletenone();
setin(addr2);
inappend = 1;
ignore(append(gettty, addr2));
inappend = 0;
nochng();
continue;
case 'c':
switch (peekchar()) {
/* copy */
case 'o':
tail("copy");
vmacchng(0);
move();
continue;
#ifdef CHDIR
/* cd */
case 'd':
tail("cd");
goto changdir;
/* chdir */
case 'h':
ignchar();
if (peekchar() == 'd') {
register char *p;
tail2of("chdir");
changdir:
if (savedfile[0] == '/' || !value(WARN))
ignore(exclam());
else
ignore(quickly());
if (skipend()) {
p = getenv("HOME");
if (p == NULL)
error("Home directory unknown");
} else
getone(), p = file;
eol();
if (chdir(p) < 0)
filioerr(p);
if (savedfile[0] != '/')
edited = 0;
continue;
}
if (inopen)
tailprim("change", 2, 1);
tail2of("change");
break;
#endif
default:
if (inopen)
goto notinvis;
tail("change");
break;
}
/* change */
aiflag = exclam();
setCNL();
vmacchng(0);
setin(addr1);
delete(0);
inappend = 1;
ignore(append(gettty, addr1 - 1));
inappend = 0;
nochng();
continue;
/* delete */
case 'd':
/*
* Caution: dp and dl have special meaning already.
*/
tail("delete");
c = cmdreg();
setCNL();
vmacchng(0);
if (c)
YANKreg(c);
delete(0);
appendnone();
continue;
/* edit */
/* ex */
case 'e':
tail(peekchar() == 'x' ? "ex" : "edit");
editcmd:
if (!exclam() && chng)
c = 'E';
filename(c);
if (c == 'E') {
ungetchar(lastchar());
ignore(quickly());
}
setnoaddr();
doecmd:
init();
addr2 = zero;
laste++;
ex_sync();
rop(c);
nochng();
continue;
/* file */
case 'f':
tail("file");
setnoaddr();
filename(c);
noonl();
/*
synctmp();
*/
continue;
/* global */
case 'g':
tail("global");
global(!exclam());
nochng();
continue;
/* insert */
case 'i':
if (inopen)
goto notinvis;
tail("insert");
setdot();
nonzero();
aiflag = exclam();
ex_newline();
vmacchng(0);
deletenone();
setin(addr2);
inappend = 1;
ignore(append(gettty, addr2 - 1));
inappend = 0;
if (dot == zero && dol > zero)
dot = one;
nochng();
continue;
/* join */
case 'j':
tail("join");
c = exclam();
setcount();
nonzero();
ex_newline();
vmacchng(0);
if (given < 2 && addr2 != dol)
addr2++;
join(c);
continue;
/* k */
case 'k':
casek:
pastwh();
c = ex_getchar();
if (endcmd(c))
serror("Mark what?|%s requires following letter", Command);
ex_newline();
if (!islower(c))
error("Bad mark|Mark must specify a letter");
setdot();
nonzero();
names[c - 'a'] = *addr2 &~ 01;
anymarks = 1;
continue;
/* list */
case 'l':
tail("list");
setCNL();
ignorf(setlist(1));
pflag = 0;
goto print;
case 'm':
if (peekchar() == 'a') {
ignchar();
if (peekchar() == 'p') {
/* map */
tail2of("map");
setnoaddr();
mapcmd(0, 0);
continue;
}
/* mark */
tail2of("mark");
goto casek;
}
/* move */
tail("move");
vmacchng(0);
move();
continue;
case 'n':
if (peekchar() == 'u') {
tail("number");
goto numberit;
}
/* next */
tail("next");
setnoaddr();
ckaw();
ignore(quickly());
if (getargs())
makargs();
next();
c = 'e';
filename(c);
goto doecmd;
/* open */
case 'o':
tail("open");
oop();
pflag = 0;
nochng();
continue;
case 'p':
case 'P':
switch (peekchar()) {
/* put */
case 'u':
tail("put");
setdot();
c = cmdreg();
eol();
vmacchng(0);
if (c)
putreg(c);
else
put();
continue;
case 'r':
ignchar();
if (peekchar() == 'e') {
/* preserve */
tail2of("preserve");
eol();
if (preserve() == 0)
error("Preserve failed!");
else
error("File preserved.");
}
tail2of("print");
break;
default:
tail("print");
break;
}
/* print */
setCNL();
pflag = 0;
print:
nonzero();
if (CL && span() > EX_LINES) {
flush1();
vclear();
}
plines(addr1, addr2, 1);
continue;
/* quit */
case 'q':
tail("quit");
setnoaddr();
c = quickly();
eol();
if (!c)
quit:
nomore();
if (inopen) {
vgoto(WECHO, 0);
if (!ateopr())
vnfl();
else {
tostop();
}
flush();
setty(normf);
}
cleanup(1);
ex_exit(0);
case 'r':
if (peekchar() == 'e') {
ignchar();
switch (peekchar()) {
/* rewind */
case 'w':
tail2of("rewind");
setnoaddr();
if (!exclam()) {
ckaw();
if (chng && dol > zero)
error("No write@since last chage (:rewind! overrides)");
}
eol();
erewind();
next();
c = 'e';
ungetchar(lastchar());
filename(c);
goto doecmd;
/* recover */
case 'c':
tail2of("recover");
setnoaddr();
c = 'e';
if (!exclam() && chng)
c = 'E';
filename(c);
if (c == 'E') {
ungetchar(lastchar());
ignore(quickly());
}
init();
addr2 = zero;
laste++;
ex_sync();
recover();
rop2();
revocer();
if (status == 0)
rop3(c);
if (dol != zero)
change();
nochng();
continue;
}
tail2of("read");
} else
tail("read");
/* read */
if (savedfile[0] == 0 && dol == zero)
c = 'e';
pastwh();
vmacchng(0);
if (peekchar() == '!') {
setdot();
ignchar();
unix0(0);
filter(0);
continue;
}
filename(c);
rop(c);
nochng();
if (inopen && endline && addr1 > zero && addr1 < dol)
dot = addr1 + 1;
continue;
case 's':
switch (peekchar()) {
/*
* Caution: 2nd char cannot be c, g, or r
* because these have meaning to substitute.
*/
/* set */
case 'e':
tail("set");
setnoaddr();
set();
continue;
/* shell */
case 'h':
tail("shell");
setNAEOL();
vnfl();
putpad(TE);
flush();
unixwt(1, unixex("-i", (char *) 0, 0, 0));
vcontin(0);
continue;
/* source */
case 'o':
#ifdef notdef
if (inopen)
goto notinvis;
#endif
tail("source");
setnoaddr();
getone();
eol();
source(file, 0);
continue;
#ifdef SIGTSTP
/* stop, suspend */
case 't':
tail("stop");
goto suspend;
case 'u':
tail("suspend");
suspend:
if (!dosusp)
error("Old tty driver|Not using new tty driver/shell");
c = exclam();
eol();
if (!c)
ckaw();
onsusp(0);
continue;
#endif
}
/* fall into ... */
/* & */
/* ~ */
/* substitute */
case '&':
case '~':
Command = "substitute";
if (c == 's')
tail(Command);
vmacchng(0);
if (!substitute(c))
pflag = 0;
continue;
/* t */
case 't':
if (peekchar() == 'a') {
tail("tag");
tagfind(exclam());
if (!inopen)
lchng = chng - 1;
else
nochng();
continue;
}
tail("t");
vmacchng(0);
move();
continue;
case 'u':
if (peekchar() == 'n') {
ignchar();
switch(peekchar()) {
/* unmap */
case 'm':
tail2of("unmap");
setnoaddr();
mapcmd(1, 0);
continue;
/* unabbreviate */
case 'a':
tail2of("unabbreviate");
setnoaddr();
mapcmd(1, 1);
anyabbrs = 1;
continue;
}
/* undo */
tail2of("undo");
} else
tail("undo");
setnoaddr();
markDOT();
c = exclam();
ex_newline();
undo(c);
continue;
case 'v':
switch (peekchar()) {
case 'e':
/* version */
tail("version");
setNAEOL();
ex_printf("@(#) Version 3.6, 11/3/80"
" (4.0BSD). git "
"160803 14:24"
+5);
noonl();
continue;
/* visual */
case 'i':
tail("visual");
if (inopen) {
c = 'e';
goto editcmd;
}
vop();
pflag = 0;
nochng();
continue;
}
/* v */
tail("v");
global(0);
nochng();
continue;
/* write */
case 'w':
c = peekchar();
tail(c == 'q' ? "wq" : "write");
wq:
if (skipwh() && peekchar() == '!') {
pofix();
ignchar();
setall();
unix0(0);
filter(1);
} else {
setall();
wop(1);
nochng();
}
if (c == 'q')
goto quit;
continue;
/* xit */
case 'x':
tail("xit");
if (!chng)
goto quit;
c = 'q';
goto wq;
/* yank */
case 'y':
tail("yank");
c = cmdreg();
setcount();
eol();
vmacchng(0);
if (c)
YANKreg(c);
else
yank();
continue;
/* z */
case 'z':
zop(0);
pflag = 0;
continue;
/* * */
/* @ */
case '*':
case '@':
c = ex_getchar();
if (c=='\n' || c=='\r')
ungetchar(c);
if (any(c, "@*\n\r"))
c = lastmac;
if (isupper(c))
c = tolower(c);
if (!islower(c))
error("Bad register");
ex_newline();
setdot();
cmdmac(c);
continue;
/* | */
case '|':
endline = 0;
goto caseline;
/* \n */
case '\n':
endline = 1;
caseline:
notempty();
if (addr2 == 0) {
if (UP != NOSTR && c == '\n' && !inglobal)
c = CTRL('k');
if (inglobal)
addr1 = addr2 = dot;
else {
if (dot == dol)
error("At EOF|At end-of-file");
addr1 = addr2 = dot + 1;
}
}
setdot();
nonzero();
if (seensemi)
addr1 = addr2;
ex_getline(*addr1);
if (c == CTRL('k')) {
flush1();
destline--;
if (hadpr)
shudclob = 1;
}
plines(addr1, addr2, 1);
continue;
/* " */
case '"':
comment();
continue;
/* # */
case '#':
numberit:
setCNL();
ignorf(setnumb(1));
pflag = 0;
goto print;
/* = */
case '=':
ex_newline();
setall();
if (inglobal == 2)
pofix();
ex_printf("%d", lineno(addr2));
noonl();
continue;
/* ! */
case '!':
if (addr2 != 0) {
vmacchng(0);
unix0(0);
setdot();
filter(2);
} else {
unix0(1);
pofix();
putpad(TE);
flush();
unixwt(1, unixex("-c", uxb, 0, 0));
vclrech(1); /* vcontin(0); */
nochng();
}
continue;
/* < */
/* > */
case '<':
case '>':
for (cnt = 1; peekchar() == c; cnt++)
ignchar();
setCNL();
vmacchng(0);
shift(c, cnt);
continue;
/* ^D */
/* EOF */
case CTRL('d'):
case EOF:
if (exitoneof) {
if (addr2 != 0)
dot = addr2;
return;
}
if (!isatty(0)) {
if (intty)
/*
* Chtty sys call at UCB may cause a
* input which was a tty to suddenly be
* turned into /dev/null.
*/
onhup(0);
return;
}
if (addr2 != 0) {
setlastchar('\n');
putnl();
}
if (dol == zero) {
if (addr2 == 0)
putnl();
notempty();
}
ungetchar(EOF);
zop(hadpr);
continue;
default:
if (!isalpha(c))
break;
ungetchar(c);
tailprim("", 0, 0);
}
ierror("What?|Unknown command character '%c'", c);
}
}