static int
output(int a, int b)
{
int i;
char *s;
if (a < 0)
change(n0-1, 0, n1, b, "a");
else if (b < 0)
change(n0, a, n1-1, 0, "d");
else
change(n0, a, n1, b, "c");
for (i = 0; i <= a; i++) {
s = getl(0, n0+i);
if (s == NULL)
break;
(void) printf("< %s", s);
clrl(0, n0+i);
}
n0 += i-1;
if (a >= 0 && b >= 0)
(void) printf("---\n");
for (i = 0; i <= b; i++) {
s = getl(1, n1+i);
if (s == NULL)
break;
(void) printf("> %s", s);
clrl(1, n1+i);
}
diffFound = 1;
n1 += i-1;
return (1);
}
int
main(int argc, char **argv)
{
char *s0, *s1;
if ((argc > 1) && (*argv[1] == '-')) {
argc--;
argv++;
while (*++argv[0])
if (*argv[0] == 'b')
bflag++;
}
(void) setlocale(LC_ALL, "");
#if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */
#define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */
#endif
(void) textdomain(TEXT_DOMAIN);
if (argc != 3)
error(gettext("must have 2 file arguments"));
file[0] = dopen(argv[1], argv[2]);
file[1] = dopen(argv[2], argv[1]);
for (;;) {
s0 = getl(0, ++n0);
s1 = getl(1, ++n1);
if (s0 == NULL || s1 == NULL)
break;
if (cmp(s0, s1) != 0) {
if (!easysynch() && !hardsynch())
progerr("5");
} else {
clrl(0, n0);
clrl(1, n1);
}
}
/* diff is expected to return 1 if the files differ */
if (s0 == NULL && s1 == NULL)
return (diffFound);
if (s0 == NULL) {
(void) output(-1, INF);
return (1);
}
if (s1 == NULL) {
(void) output(INF, -1);
return (1);
}
/* NOTREACHED */
return (0);
}
void ttyout(unsigned char c)
{
switch(mode)
{
/* Print mode */
case 5:
if(c==6) break;
pp(c);
return;
/* No prefix characters */
case 0:
switch(c)
{
case 6:
mode=5;
return; /* Pass-thru printing */
case 7:
bell();
break;
case 8:
dowrap=0;
bs();
break;
case 9:
tab();
break;
case 10:
case 11:
case 12:
dowrap=0;
if(mnl) cr();
lf();
break;
case 13:
dowrap=0;
cr();
break;
case 27:
mode=1;
return;
case 0x84:
dowrap=0;
lf();
break;
case 0x85:
dowrap=0;
cr();
lf();
break;
case 0x88:
settab();
break;
case 0x8d:
dowrap=0;
ups();
break;
case 0x9b:
begin();
mode=2;
return;
default:
if(minsert) insc(c);
else type(c);
}
break;
/* ESC has been received */
case 1:
switch(c)
{
case 27:
return;
case '[':
begin();
mode=2;
return;
case 'D':
dowrap=0;
lf();
break;
case 'E':
dowrap=0;
cr();
lf();
break;
case 'H':
settab();
break;
case 'M':
dowrap=0;
ups();
break;
case '#':
mode=3;
return;
}
break;
/* ESC [ or 0x9B has been received */
case 2:
/* Enter numbers */
switch(c)
{
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
parry[nptr]=parry[nptr]*10+c-'0';
return;
case ';':
if(MAXPARMS== ++nptr) break;
else return;
case 27:
mode=1;
return;
case '[':
begin();
return;
case 'c':
ttyinit();
break;
case 'p':
dowrap=0;
break; /* Reset what? */
case 'r':
dowrap=0;
setregn();
break;
case 'm':
setattrib();
break;
case 'J':
clrs();
break;
case 'K':
clrl();
break;
case 'X':
clrc();
break;
case 'H':
dowrap=0;
pos();
break;
case 'C':
dowrap=0;
right();
break;
case 'D':
dowrap=0;
left();
break;
case 'A':
dowrap=0;
up();
break;
case 'B':
dowrap=0;
down();
break;
case 'g':
clrt();
break;
case 'M':
dell();
break;
case 'L':
insl();
break;
case 'P':
delc();
break;
case '@':
inss();
break;
case 'h':
hmode();
break;
case 'l':
lmode();
break;
case '!':
case '?':
return;
}
break;
/* ESC # has been received */
case 3:
switch(c)
{
case 27:
mode=1;
return;
case '[':
begin();
mode=2;
return;
}
break;
}
mode=0;
}