/* ToNumber() on a string */
double jsV_stringtonumber(js_State *J, const char *s)
{
char *e;
double n;
while (jsY_iswhite(*s) || jsY_isnewline(*s)) ++s;
if (s[0] == '0' && (s[1] == 'x' || s[1] == 'X') && s[2] != 0)
n = strtol(s + 2, &e, 16);
else if (!strncmp(s, "Infinity", 8))
n = INFINITY, e = (char*)s + 8;
else if (!strncmp(s, "+Infinity", 9))
n = INFINITY, e = (char*)s + 9;
else if (!strncmp(s, "-Infinity", 9))
n = -INFINITY, e = (char*)s + 9;
else
n = js_stringtofloat(s, &e);
while (jsY_iswhite(*e) || jsY_isnewline(*e)) ++e;
if (*e) return NAN;
return n;
}
static void jsB_parseFloat(js_State *J)
{
const char *s = js_tostring(J, 1);
char *e;
double n;
while (jsY_iswhite(*s) || jsY_isnewline(*s)) ++s;
if (!strncmp(s, "Infinity", 8))
js_pushnumber(J, INFINITY);
else if (!strncmp(s, "+Infinity", 9))
js_pushnumber(J, INFINITY);
else if (!strncmp(s, "-Infinity", 9))
js_pushnumber(J, -INFINITY);
else {
n = js_stringtofloat(s, &e);
if (e == s)
js_pushnumber(J, NAN);
else
js_pushnumber(J, n);
}
}
