extern void do_endwhile(void)
{
if (in_false_if())
{
do_endif(0);
input_unmark();
#ifdef DEBUG_WHILE
if (debugging)
{
outputs("//endwhile:");
outputd(curline());
outputs(",");
outputs(curfile());
outputs("\\\\");
}
#endif
out_at(curline(), curfile());
}
else
{
do_endif(0);
input_recover();
input_mark();
do_if(0);
}
}
int eval_expr (int Sharp, int Complain)
{
char c;
char d;
int rv;
sharp = Sharp;
complain = Complain;
expr = read_expr_();
if (sharp)
{
c = getnonhspace();
d = '\n';
}
else
{
c = getnonspace();
d = ')';
}
if (c != d)
{
if (complain)
{
err_head();
fprintf(stderr, "expression syntax error -- junk after expression\n");
}
while (Get() != d)
;
}
#ifdef DEBUG_EXPR
if (debugging)
{
outputc('<');
dump_expr(expr);
outputc('=');
rv = exec_free(expr);
outputd(rv);
outputc('>');
}
else
{
rv = exec_free(expr);
}
return (rv);
#else
return (exec_free(expr));
#endif
}
static EORB_CPP_node *read_expr_11 (void)
{
char c;
#ifdef DEBUG_EXPR
if (debugging)
{
outputs("~E11:");
}
#endif
while (1)
{
c = getnhsexpand();
if (c == '(')
{
EORB_CPP_node *n;
#ifdef DEBUG_EXPR
if (debugging)
{
outputs("()");
}
#endif
n = read_expr_();
c = getnhsexpand();
if (c != ')')
{
err_head();
fprintf(stderr, "expression syntax error -- missing ) supplied\n");
Push(c);
}
#ifdef DEBUG_EXPR
if (debugging)
{
outputs("~");
}
#endif
return (n);
}
else if (isdigit((int) c))
{
int base;
static char digits[] = "0123456789abcdefABCDEF";
static char values[] =
"\0\1\2\3\4\5\6\7\10\11\12\13\14\15\16\17\12\13\14\15\16\17";
char *d;
int v;
#ifdef DEBUG_EXPR
if (debugging)
{
outputs("N");
}
#endif
base = 10;
if (c == '0')
{
base = 8;
c = Get();
if ((c == 'x') || (c == 'X'))
{
base = 16;
c = Get();
}
}
v = 0;
while (1)
{
d = strchr(digits, c);
if (d == 0)
{
Push(c);
#ifdef DEBUG_EXPR
if (debugging)
{
outputd(v);
outputs("~");
}
#endif
return (newleaf(v));
}
else if (values[d -digits] >= base)
{
err_head();
fprintf(stderr, "warning: illegal %sdigit `%c'\n",
(base == 16) ? "hex " : (base == 8) ? "octal " : "", c);
}
v = (v * base) + values[d - digits];
c = Get();
}
}
else if (c == '\'')
{
int i;
int j;
int n;
i = 0;
n = 0;
while (1)
{
j = get_quote_char();
if (j < 0)
{
break;
}
i = (i << 8) | j;
n ++;
}
if (n > 4)
{
err_head();
fprintf(stderr, "warning: too many characters in character constant\n");
}
return (newleaf(i));
}
else if ((c == '\n') && !sharp)
{}
else
{
char *id;
if (complain)
{
err_head();
fprintf(stderr, "expression syntax error -- number expected\n");
}
if (isbsymchar(c))
{
Push(c);
id = read_ident();
}
else
{
id = 0;
}
#ifdef DEBUG_EXPR
if (debugging)
{
outputs("0(");
outputc(c);
outputs(":");
outputs(id ? id : "(none)");
outputs(")~");
}
#endif
if (id)
{
os_free(id);
}
return (newleaf(0));
}
}
}
