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#include "scalar/latin1.h"
#include "scalar/utf16.h"
#include "scalar/utf8.h"
#include "scalar/utf8_to_latin1/utf8_to_latin1.h"
#include "scalar/utf8_to_latin1/valid_utf8_to_latin1.h"
#include "scalar/utf16_to_utf8/utf16_to_utf8.h"
#include "scalar/utf16_to_utf8/valid_utf16_to_utf8.h"
#include "scalar/utf16_to_utf32/utf16_to_utf32.h"
#include "scalar/utf16_to_utf32/valid_utf16_to_utf32.h"
#include "scalar/utf32_to_utf8/utf32_to_utf8.h"
#include "scalar/utf32_to_utf8/valid_utf32_to_utf8.h"
#include "scalar/utf32_to_utf16/utf32_to_utf16.h"
#include "scalar/utf32_to_utf16/valid_utf32_to_utf16.h"
#include "simdutf/rvv/begin.h"
namespace simdutf {
namespace SIMDUTF_IMPLEMENTATION {
namespace {
#ifndef SIMDUTF_RVV_H
#error "rvv.h must be included"
#endif
} // unnamed namespace
} // namespace SIMDUTF_IMPLEMENTATION
} // namespace simdutf
//
// Implementation-specific overrides
//
namespace simdutf {
namespace SIMDUTF_IMPLEMENTATION {
#include "rvv/rvv_helpers.inl.cpp"
#include "rvv/rvv_length_from.inl.cpp"
#include "rvv/rvv_validate.inl.cpp"
#include "rvv/rvv_latin1_to.inl.cpp"
#include "rvv/rvv_utf16_to.inl.cpp"
#include "rvv/rvv_utf32_to.inl.cpp"
#include "rvv/rvv_utf8_to.inl.cpp"
simdutf_warn_unused int
implementation::detect_encodings(const char *input,
size_t length) const noexcept {
// If there is a BOM, then we trust it.
auto bom_encoding = simdutf::BOM::check_bom(input, length);
if (bom_encoding != encoding_type::unspecified)
return bom_encoding;
// todo: reimplement as a one-pass algorithm.
int out = 0;
if (validate_utf8(input, length))
out |= encoding_type::UTF8;
if (length % 2 == 0) {
if (validate_utf16(reinterpret_cast<const char16_t *>(input), length / 2))
out |= encoding_type::UTF16_LE;
}
if (length % 4 == 0) {
if (validate_utf32(reinterpret_cast<const char32_t *>(input), length / 4))
out |= encoding_type::UTF32_LE;
}
return out;
}
template <simdutf_ByteFlip bflip>
simdutf_really_inline static void
rvv_change_endianness_utf16(const char16_t *src, size_t len, char16_t *dst) {
for (size_t vl; len > 0; len -= vl, src += vl, dst += vl) {
vl = __riscv_vsetvl_e16m8(len);
vuint16m8_t v = __riscv_vle16_v_u16m8((uint16_t *)src, vl);
__riscv_vse16_v_u16m8((uint16_t *)dst, simdutf_byteflip<bflip>(v, vl), vl);
}
}
void implementation::change_endianness_utf16(const char16_t *src, size_t len,
char16_t *dst) const noexcept {
if (supports_zvbb())
return rvv_change_endianness_utf16<simdutf_ByteFlip::ZVBB>(src, len, dst);
else
return rvv_change_endianness_utf16<simdutf_ByteFlip::V>(src, len, dst);
}
simdutf_warn_unused size_t implementation::maximal_binary_length_from_base64(
const char *input, size_t length) const noexcept {
return scalar::base64::maximal_binary_length_from_base64(input, length);
}
simdutf_warn_unused result implementation::base64_to_binary(
const char *input, size_t length, char *output, base64_options options,
last_chunk_handling_options last_chunk_options) const noexcept {
while (length > 0 &&
scalar::base64::is_ascii_white_space(input[length - 1])) {
length--;
}
size_t equallocation =
length; // location of the first padding character if any
size_t equalsigns = 0;
if (length > 0 && input[length - 1] == '=') {
equallocation = length - 1;
length -= 1;
equalsigns++;
while (length > 0 &&
scalar::base64::is_ascii_white_space(input[length - 1])) {
length--;
}
if (length > 0 && input[length - 1] == '=') {
equallocation = length - 1;
equalsigns++;
length -= 1;
}
}
if (length == 0) {
if (equalsigns > 0) {
return {INVALID_BASE64_CHARACTER, equallocation};
}
return {SUCCESS, 0};
}
result r = scalar::base64::base64_tail_decode(
output, input, length, equalsigns, options, last_chunk_options);
if (last_chunk_options != stop_before_partial &&
r.error == error_code::SUCCESS && equalsigns > 0) {
// additional checks
if ((r.count % 3 == 0) || ((r.count % 3) + 1 + equalsigns != 4)) {
return {INVALID_BASE64_CHARACTER, equallocation};
}
}
return r;
}
simdutf_warn_unused full_result implementation::base64_to_binary_details(
const char *input, size_t length, char *output, base64_options options,
last_chunk_handling_options last_chunk_options) const noexcept {
while (length > 0 &&
scalar::base64::is_ascii_white_space(input[length - 1])) {
length--;
}
size_t equallocation =
length; // location of the first padding character if any
size_t equalsigns = 0;
if (length > 0 && input[length - 1] == '=') {
equallocation = length - 1;
length -= 1;
equalsigns++;
while (length > 0 &&
scalar::base64::is_ascii_white_space(input[length - 1])) {
length--;
}
if (length > 0 && input[length - 1] == '=') {
equallocation = length - 1;
equalsigns++;
length -= 1;
}
}
if (length == 0) {
if (equalsigns > 0) {
return {INVALID_BASE64_CHARACTER, equallocation, 0};
}
return {SUCCESS, 0, 0};
}
full_result r = scalar::base64::base64_tail_decode(
output, input, length, equalsigns, options, last_chunk_options);
if (last_chunk_options != stop_before_partial &&
r.error == error_code::SUCCESS && equalsigns > 0) {
// additional checks
if ((r.output_count % 3 == 0) ||
((r.output_count % 3) + 1 + equalsigns != 4)) {
return {INVALID_BASE64_CHARACTER, equallocation, r.output_count};
}
}
return r;
}
simdutf_warn_unused size_t implementation::maximal_binary_length_from_base64(
const char16_t *input, size_t length) const noexcept {
return scalar::base64::maximal_binary_length_from_base64(input, length);
}
simdutf_warn_unused result implementation::base64_to_binary(
const char16_t *input, size_t length, char *output, base64_options options,
last_chunk_handling_options last_chunk_options) const noexcept {
while (length > 0 &&
scalar::base64::is_ascii_white_space(input[length - 1])) {
length--;
}
size_t equallocation =
length; // location of the first padding character if any
auto equalsigns = 0;
if (length > 0 && input[length - 1] == '=') {
equallocation = length - 1;
length -= 1;
equalsigns++;
while (length > 0 &&
scalar::base64::is_ascii_white_space(input[length - 1])) {
length--;
}
if (length > 0 && input[length - 1] == '=') {
equallocation = length - 1;
equalsigns++;
length -= 1;
}
}
if (length == 0) {
if (equalsigns > 0) {
return {INVALID_BASE64_CHARACTER, equallocation};
}
return {SUCCESS, 0};
}
result r = scalar::base64::base64_tail_decode(
output, input, length, equalsigns, options, last_chunk_options);
if (last_chunk_options != stop_before_partial &&
r.error == error_code::SUCCESS && equalsigns > 0) {
// additional checks
if ((r.count % 3 == 0) || ((r.count % 3) + 1 + equalsigns != 4)) {
return {INVALID_BASE64_CHARACTER, equallocation};
}
}
return r;
}
simdutf_warn_unused full_result implementation::base64_to_binary_details(
const char16_t *input, size_t length, char *output, base64_options options,
last_chunk_handling_options last_chunk_options) const noexcept {
while (length > 0 &&
scalar::base64::is_ascii_white_space(input[length - 1])) {
length--;
}
size_t equallocation =
length; // location of the first padding character if any
size_t equalsigns = 0;
if (length > 0 && input[length - 1] == '=') {
equallocation = length - 1;
length -= 1;
equalsigns++;
while (length > 0 &&
scalar::base64::is_ascii_white_space(input[length - 1])) {
length--;
}
if (length > 0 && input[length - 1] == '=') {
equallocation = length - 1;
equalsigns++;
length -= 1;
}
}
if (length == 0) {
if (equalsigns > 0) {
return {INVALID_BASE64_CHARACTER, equallocation, 0};
}
return {SUCCESS, 0, 0};
}
full_result r = scalar::base64::base64_tail_decode(
output, input, length, equalsigns, options, last_chunk_options);
if (last_chunk_options != stop_before_partial &&
r.error == error_code::SUCCESS && equalsigns > 0) {
// additional checks
if ((r.output_count % 3 == 0) ||
((r.output_count % 3) + 1 + equalsigns != 4)) {
return {INVALID_BASE64_CHARACTER, equallocation, r.output_count};
}
}
return r;
}
simdutf_warn_unused size_t implementation::base64_length_from_binary(
size_t length, base64_options options) const noexcept {
return scalar::base64::base64_length_from_binary(length, options);
}
size_t implementation::binary_to_base64(const char *input, size_t length,
char *output,
base64_options options) const noexcept {
return scalar::base64::tail_encode_base64(output, input, length, options);
}
} // namespace SIMDUTF_IMPLEMENTATION
} // namespace simdutf
#include "simdutf/rvv/end.h"
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