DUK_LOCAL duk_uint32_t duk__append_u32(duk_re_compiler_ctx *re_ctx, duk_uint32_t x) {
duk_uint8_t buf[DUK_UNICODE_MAX_XUTF8_LENGTH];
duk_small_int_t len;
len = duk_unicode_encode_xutf8((duk_ucodepoint_t) x, buf);
DUK_BW_WRITE_ENSURE_BYTES(re_ctx->thr, &re_ctx->bw, buf, len);
return (duk_uint32_t) len;
}
size_t duk_hbuffer_insert_xutf8(duk_hthread *thr, duk_hbuffer_dynamic *buf, size_t offset, duk_uint32_t codepoint) {
duk_uint8_t tmp[DUK_UNICODE_MAX_XUTF8_LENGTH];
size_t len;
DUK_ASSERT(thr != NULL);
DUK_ASSERT(buf != NULL);
DUK_ASSERT(DUK_HBUFFER_HAS_DYNAMIC(buf));
/* No range assertion for 'codepoint' */
/* Intentionally no fast path: insertion is not that central */
/* FIXME: cp -> duk_codepoint_t */
len = (size_t) duk_unicode_encode_xutf8((duk_ucodepoint_t) codepoint, tmp);
duk_hbuffer_insert_bytes(thr, buf, offset, tmp, len);
return len;
}
size_t duk_hbuffer_append_xutf8(duk_hthread *thr, duk_hbuffer_dynamic *buf, duk_uint32_t codepoint) {
duk_uint8_t tmp[DUK_UNICODE_MAX_XUTF8_LENGTH];
size_t len;
DUK_ASSERT(thr != NULL);
DUK_ASSERT(buf != NULL);
DUK_ASSERT(DUK_HBUFFER_HAS_DYNAMIC(buf));
/* No range assertion for 'codepoint' */
if (codepoint < 0x80 && DUK_HBUFFER_DYNAMIC_GET_SPARE_SIZE(buf) > 0) {
/* fast path: ASCII and there is spare */
duk_uint8_t *p = ((duk_uint8_t *) DUK_HBUFFER_DYNAMIC_GET_CURR_DATA_PTR(buf)) + DUK_HBUFFER_GET_SIZE(buf);
*p = (duk_uint8_t) codepoint;
buf->size += 1;
return 1;
}
/* FIXME: cp -> duk_codepoint_t */
len = (size_t) duk_unicode_encode_xutf8((duk_ucodepoint_t) codepoint, tmp);
duk_hbuffer_insert_bytes(thr, buf, DUK_HBUFFER_GET_SIZE(buf), tmp, len);
return len;
}