/*
* Return TRUE if we can represent the whole of the given string either
* in the output charset or as named characters; FALSE otherwise.
*/
static int troff_ok(int charset, wchar_t *string) {
wchar_t test[2];
while (*string) {
test[0] = *string;
test[1] = 0;
if (!cvt_ok(charset, test) && !troffchar(*string))
return FALSE;
string++;
}
return TRUE;
}
void
process(Biobuf *b, char *name)
{
int c, r, v, i;
char *p;
cno = 0;
prevlineH = res;
filename = name;
for(;;){
c = getc(b);
switch(c){
case Beof:
/* go to ground state */
attr = 0;
emit('\n');
return;
case '\n':
break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
v = c-'0';
c = getc(b);
if(c<'0' || '9'<c)
sysfatal("illegal character motion at %s:#%d", filename, cno);
v = v*10 + (c-'0');
hp += v;
/* fall through to character case */
case 'c':
indent();
r = getc(b);
emithtmlchar(r);
break;
case 'D':
/* draw line; ignore */
do
c = getc(b);
while(c!='\n' && c!= Beof);
break;
case 'f':
v = setnum(b, "font", 0, Nfont);
switchfont(v);
break;
case 'h':
v = setnum(b, "hpos", -20000, 20000);
/* generate spaces if motion is large and within a line */
if(!atnewline && v>2*72)
for(i=0; i<v; i+=72)
emitstr(" ");
hp += v;
break;
case 'n':
setnum(b, "n1", -10000, 10000);
//Bprint(&bout, " N1=%d", v);
getc(b); /* space separates */
setnum(b, "n2", -10000, 10000);
atnewline = 1;
if(!didP && hp < (Wid-1)*res) /* if line is less than 19" long, probably need a line break */
emitstr("<br>");
emit('\n');
break;
case 'p':
page = setnum(b, "ps", -10000, 10000);
break;
case 's':
ps = setnum(b, "ps", 1, 1000);
break;
case 'v':
vp += setnum(b, "vpos", -10000, 10000);
/* BUG: ignore motion */
break;
case 'x':
xcmd(b);
break;
case 'w':
emit(' ');
break;
case 'C':
indent();
p = getstr(b);
emitstr(troffchar(p));
break;
case 'H':
hp = setnum(b, "hpos", 0, 20000);
//Bprint(&bout, " H=%d ", hp);
break;
case 'V':
vp = setnum(b, "vpos", 0, 10000);
break;
default:
fprint(2, "dhtml: unknown directive %c(0x%.2ux) at %s:#%d\n", c, c, filename, cno);
return;
}
}
}