static int is_whitespace(MVMThreadContext *tc, MVMCodepoint cp) {
if (cp <= '~') {
if (cp == ' ' || (cp <= 13 && cp >= 9))
return 1;
else
return 0;
}
return MVM_unicode_codepoint_has_property_value(tc, cp, MVM_UNICODE_PROPERTY_WHITE_SPACE, 1);
}
MVMObject * MVM_radix(MVMThreadContext *tc, MVMint64 radix, MVMString *str, MVMint64 offset, MVMint64 flag) {
MVMObject *result;
MVMint64 zvalue = 0;
MVMint64 zbase = 1;
MVMint64 chars = MVM_string_graphs(tc, str);
MVMint64 value = zvalue;
MVMint64 base = zbase;
MVMint64 pos = -1;
MVMuint16 neg = 0;
MVMint64 ch;
if (radix > 36) {
MVM_exception_throw_adhoc(tc, "Cannot convert radix of %"PRId64" (max 36)", radix);
}
ch = (offset < chars) ? MVM_string_get_grapheme_at_nocheck(tc, str, offset) : 0;
if ((flag & 0x02) && (ch == '+' || ch == '-')) {
neg = (ch == '-');
offset++;
ch = (offset < chars) ? MVM_string_get_grapheme_at_nocheck(tc, str, offset) : 0;
}
while (offset < chars) {
if (ch >= '0' && ch <= '9') ch = ch - '0'; /* fast-path for ASCII 0..9 */
else if (ch >= 'a' && ch <= 'z') ch = ch - 'a' + 10;
else if (ch >= 'A' && ch <= 'Z') ch = ch - 'A' + 10;
else if (ch >= 0xFF21 && ch <= 0xFF3A) ch = ch - 0xFF21 + 10; /* uppercase fullwidth */
else if (ch >= 0xFF41 && ch <= 0xFF5A) ch = ch - 0xFF41 + 10; /* lowercase fullwidth */
else if (ch > 0 && MVM_unicode_codepoint_has_property_value(tc, ch, MVM_UNICODE_PROPERTY_GENERAL_CATEGORY,
MVM_unicode_cname_to_property_value_code(tc, MVM_UNICODE_PROPERTY_GENERAL_CATEGORY, STR_WITH_LEN("Nd")))) {
/* As of Unicode 6.0.0, we know that Nd category numerals are within
* the range 0..9
*/
/* the string returned for NUMERIC_VALUE contains a floating point
* value, so atoi will stop on the . in the string. This is fine
* though, since we'd have to truncate the float regardless.
*/
ch = atoi(MVM_unicode_codepoint_get_property_cstr(tc, ch, MVM_UNICODE_PROPERTY_NUMERIC_VALUE));
}
else break;
if (ch >= radix) break;
zvalue = zvalue * radix + ch;
zbase = zbase * radix;
offset++; pos = offset;
if (ch != 0 || !(flag & 0x04)) { value=zvalue; base=zbase; }
if (offset >= chars) break;
ch = MVM_string_get_grapheme_at_nocheck(tc, str, offset);
if (ch != '_') continue;
offset++;
if (offset >= chars) break;
ch = MVM_string_get_grapheme_at_nocheck(tc, str, offset);
}
if (neg || flag & 0x01) { value = -value; }
/* initialize the object */
result = MVM_repr_alloc_init(tc, MVM_hll_current(tc)->slurpy_array_type);
MVMROOT(tc, result, {
MVMObject *box_type = MVM_hll_current(tc)->int_box_type;
MVMROOT(tc, box_type, {
MVMObject *boxed = MVM_repr_box_int(tc, box_type, value);
MVM_repr_push_o(tc, result, boxed);
boxed = MVM_repr_box_int(tc, box_type, base);
MVM_repr_push_o(tc, result, boxed);
boxed = MVM_repr_box_int(tc, box_type, pos);
MVM_repr_push_o(tc, result, boxed);
});
});
