Revision control
Copy as Markdown
Other Tools
// Copyright Mozilla Foundation. See the COPYRIGHT
// file at the top-level directory of this distribution.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// THIS IS A GENERATED FILE. PLEASE DO NOT EDIT.
// Instead, please regenerate using generate-encoding-data.py
//! This module provides enums that wrap the various decoders and encoders.
//! The purpose is to make `Decoder` and `Encoder` `Sized` by writing the
//! dispatch explicitly for a finite set of specialized decoders and encoders.
//! Unfortunately, this means the compiler doesn't generate the dispatch code
//! and it has to be written here instead.
//!
//! The purpose of making `Decoder` and `Encoder` `Sized` is to allow stack
//! allocation in Rust code, including the convenience methods on `Encoding`.
use super::*;
use big5::*;
use euc_jp::*;
use euc_kr::*;
use gb18030::*;
use iso_2022_jp::*;
use replacement::*;
use shift_jis::*;
use single_byte::*;
use utf_16::*;
use utf_8::*;
use x_user_defined::*;
pub enum VariantDecoder {
SingleByte(SingleByteDecoder),
Utf8(Utf8Decoder),
Gb18030(Gb18030Decoder),
Big5(Big5Decoder),
EucJp(EucJpDecoder),
Iso2022Jp(Iso2022JpDecoder),
ShiftJis(ShiftJisDecoder),
EucKr(EucKrDecoder),
Replacement(ReplacementDecoder),
UserDefined(UserDefinedDecoder),
Utf16(Utf16Decoder),
}
impl VariantDecoder {
pub fn max_utf16_buffer_length(&self, byte_length: usize) -> Option<usize> {
match *self {
VariantDecoder::SingleByte(ref v) => v.max_utf16_buffer_length(byte_length),
VariantDecoder::Utf8(ref v) => v.max_utf16_buffer_length(byte_length),
VariantDecoder::Gb18030(ref v) => v.max_utf16_buffer_length(byte_length),
VariantDecoder::Big5(ref v) => v.max_utf16_buffer_length(byte_length),
VariantDecoder::EucJp(ref v) => v.max_utf16_buffer_length(byte_length),
VariantDecoder::Iso2022Jp(ref v) => v.max_utf16_buffer_length(byte_length),
VariantDecoder::ShiftJis(ref v) => v.max_utf16_buffer_length(byte_length),
VariantDecoder::EucKr(ref v) => v.max_utf16_buffer_length(byte_length),
VariantDecoder::Replacement(ref v) => v.max_utf16_buffer_length(byte_length),
VariantDecoder::UserDefined(ref v) => v.max_utf16_buffer_length(byte_length),
VariantDecoder::Utf16(ref v) => v.max_utf16_buffer_length(byte_length),
}
}
pub fn max_utf8_buffer_length_without_replacement(&self, byte_length: usize) -> Option<usize> {
match *self {
VariantDecoder::SingleByte(ref v) => {
v.max_utf8_buffer_length_without_replacement(byte_length)
}
VariantDecoder::Utf8(ref v) => {
v.max_utf8_buffer_length_without_replacement(byte_length)
}
VariantDecoder::Gb18030(ref v) => {
v.max_utf8_buffer_length_without_replacement(byte_length)
}
VariantDecoder::Big5(ref v) => {
v.max_utf8_buffer_length_without_replacement(byte_length)
}
VariantDecoder::EucJp(ref v) => {
v.max_utf8_buffer_length_without_replacement(byte_length)
}
VariantDecoder::Iso2022Jp(ref v) => {
v.max_utf8_buffer_length_without_replacement(byte_length)
}
VariantDecoder::ShiftJis(ref v) => {
v.max_utf8_buffer_length_without_replacement(byte_length)
}
VariantDecoder::EucKr(ref v) => {
v.max_utf8_buffer_length_without_replacement(byte_length)
}
VariantDecoder::Replacement(ref v) => {
v.max_utf8_buffer_length_without_replacement(byte_length)
}
VariantDecoder::UserDefined(ref v) => {
v.max_utf8_buffer_length_without_replacement(byte_length)
}
VariantDecoder::Utf16(ref v) => {
v.max_utf8_buffer_length_without_replacement(byte_length)
}
}
}
pub fn max_utf8_buffer_length(&self, byte_length: usize) -> Option<usize> {
match *self {
VariantDecoder::SingleByte(ref v) => v.max_utf8_buffer_length(byte_length),
VariantDecoder::Utf8(ref v) => v.max_utf8_buffer_length(byte_length),
VariantDecoder::Gb18030(ref v) => v.max_utf8_buffer_length(byte_length),
VariantDecoder::Big5(ref v) => v.max_utf8_buffer_length(byte_length),
VariantDecoder::EucJp(ref v) => v.max_utf8_buffer_length(byte_length),
VariantDecoder::Iso2022Jp(ref v) => v.max_utf8_buffer_length(byte_length),
VariantDecoder::ShiftJis(ref v) => v.max_utf8_buffer_length(byte_length),
VariantDecoder::EucKr(ref v) => v.max_utf8_buffer_length(byte_length),
VariantDecoder::Replacement(ref v) => v.max_utf8_buffer_length(byte_length),
VariantDecoder::UserDefined(ref v) => v.max_utf8_buffer_length(byte_length),
VariantDecoder::Utf16(ref v) => v.max_utf8_buffer_length(byte_length),
}
}
pub fn decode_to_utf16_raw(
&mut self,
src: &[u8],
dst: &mut [u16],
last: bool,
) -> (DecoderResult, usize, usize) {
match *self {
VariantDecoder::SingleByte(ref mut v) => v.decode_to_utf16_raw(src, dst, last),
VariantDecoder::Utf8(ref mut v) => v.decode_to_utf16_raw(src, dst, last),
VariantDecoder::Gb18030(ref mut v) => v.decode_to_utf16_raw(src, dst, last),
VariantDecoder::Big5(ref mut v) => v.decode_to_utf16_raw(src, dst, last),
VariantDecoder::EucJp(ref mut v) => v.decode_to_utf16_raw(src, dst, last),
VariantDecoder::Iso2022Jp(ref mut v) => v.decode_to_utf16_raw(src, dst, last),
VariantDecoder::ShiftJis(ref mut v) => v.decode_to_utf16_raw(src, dst, last),
VariantDecoder::EucKr(ref mut v) => v.decode_to_utf16_raw(src, dst, last),
VariantDecoder::Replacement(ref mut v) => v.decode_to_utf16_raw(src, dst, last),
VariantDecoder::UserDefined(ref mut v) => v.decode_to_utf16_raw(src, dst, last),
VariantDecoder::Utf16(ref mut v) => v.decode_to_utf16_raw(src, dst, last),
}
}
pub fn decode_to_utf8_raw(
&mut self,
src: &[u8],
dst: &mut [u8],
last: bool,
) -> (DecoderResult, usize, usize) {
match *self {
VariantDecoder::SingleByte(ref mut v) => v.decode_to_utf8_raw(src, dst, last),
VariantDecoder::Utf8(ref mut v) => v.decode_to_utf8_raw(src, dst, last),
VariantDecoder::Gb18030(ref mut v) => v.decode_to_utf8_raw(src, dst, last),
VariantDecoder::Big5(ref mut v) => v.decode_to_utf8_raw(src, dst, last),
VariantDecoder::EucJp(ref mut v) => v.decode_to_utf8_raw(src, dst, last),
VariantDecoder::Iso2022Jp(ref mut v) => v.decode_to_utf8_raw(src, dst, last),
VariantDecoder::ShiftJis(ref mut v) => v.decode_to_utf8_raw(src, dst, last),
VariantDecoder::EucKr(ref mut v) => v.decode_to_utf8_raw(src, dst, last),
VariantDecoder::Replacement(ref mut v) => v.decode_to_utf8_raw(src, dst, last),
VariantDecoder::UserDefined(ref mut v) => v.decode_to_utf8_raw(src, dst, last),
VariantDecoder::Utf16(ref mut v) => v.decode_to_utf8_raw(src, dst, last),
}
}
pub fn latin1_byte_compatible_up_to(&self, buffer: &[u8]) -> Option<usize> {
match *self {
VariantDecoder::SingleByte(ref v) => {
return Some(v.latin1_byte_compatible_up_to(buffer));
}
VariantDecoder::Utf8(ref v) => {
if !v.in_neutral_state() {
return None;
}
}
VariantDecoder::Gb18030(ref v) => {
if !v.in_neutral_state() {
return None;
}
}
VariantDecoder::Big5(ref v) => {
if !v.in_neutral_state() {
return None;
}
}
VariantDecoder::EucJp(ref v) => {
if !v.in_neutral_state() {
return None;
}
}
VariantDecoder::Iso2022Jp(ref v) => {
if v.in_neutral_state() {
return Some(Encoding::iso_2022_jp_ascii_valid_up_to(buffer));
}
return None;
}
VariantDecoder::ShiftJis(ref v) => {
if !v.in_neutral_state() {
return None;
}
}
VariantDecoder::EucKr(ref v) => {
if !v.in_neutral_state() {
return None;
}
}
VariantDecoder::UserDefined(_) => {}
VariantDecoder::Replacement(_) | VariantDecoder::Utf16(_) => {
return None;
}
};
Some(Encoding::ascii_valid_up_to(buffer))
}
}
pub enum VariantEncoder {
SingleByte(SingleByteEncoder),
Utf8(Utf8Encoder),
Gb18030(Gb18030Encoder),
Big5(Big5Encoder),
EucJp(EucJpEncoder),
Iso2022Jp(Iso2022JpEncoder),
ShiftJis(ShiftJisEncoder),
EucKr(EucKrEncoder),
UserDefined(UserDefinedEncoder),
}
impl VariantEncoder {
pub fn has_pending_state(&self) -> bool {
match *self {
VariantEncoder::Iso2022Jp(ref v) => v.has_pending_state(),
_ => false,
}
}
pub fn max_buffer_length_from_utf16_without_replacement(
&self,
u16_length: usize,
) -> Option<usize> {
match *self {
VariantEncoder::SingleByte(ref v) => {
v.max_buffer_length_from_utf16_without_replacement(u16_length)
}
VariantEncoder::Utf8(ref v) => {
v.max_buffer_length_from_utf16_without_replacement(u16_length)
}
VariantEncoder::Gb18030(ref v) => {
v.max_buffer_length_from_utf16_without_replacement(u16_length)
}
VariantEncoder::Big5(ref v) => {
v.max_buffer_length_from_utf16_without_replacement(u16_length)
}
VariantEncoder::EucJp(ref v) => {
v.max_buffer_length_from_utf16_without_replacement(u16_length)
}
VariantEncoder::Iso2022Jp(ref v) => {
v.max_buffer_length_from_utf16_without_replacement(u16_length)
}
VariantEncoder::ShiftJis(ref v) => {
v.max_buffer_length_from_utf16_without_replacement(u16_length)
}
VariantEncoder::EucKr(ref v) => {
v.max_buffer_length_from_utf16_without_replacement(u16_length)
}
VariantEncoder::UserDefined(ref v) => {
v.max_buffer_length_from_utf16_without_replacement(u16_length)
}
}
}
pub fn max_buffer_length_from_utf8_without_replacement(
&self,
byte_length: usize,
) -> Option<usize> {
match *self {
VariantEncoder::SingleByte(ref v) => {
v.max_buffer_length_from_utf8_without_replacement(byte_length)
}
VariantEncoder::Utf8(ref v) => {
v.max_buffer_length_from_utf8_without_replacement(byte_length)
}
VariantEncoder::Gb18030(ref v) => {
v.max_buffer_length_from_utf8_without_replacement(byte_length)
}
VariantEncoder::Big5(ref v) => {
v.max_buffer_length_from_utf8_without_replacement(byte_length)
}
VariantEncoder::EucJp(ref v) => {
v.max_buffer_length_from_utf8_without_replacement(byte_length)
}
VariantEncoder::Iso2022Jp(ref v) => {
v.max_buffer_length_from_utf8_without_replacement(byte_length)
}
VariantEncoder::ShiftJis(ref v) => {
v.max_buffer_length_from_utf8_without_replacement(byte_length)
}
VariantEncoder::EucKr(ref v) => {
v.max_buffer_length_from_utf8_without_replacement(byte_length)
}
VariantEncoder::UserDefined(ref v) => {
v.max_buffer_length_from_utf8_without_replacement(byte_length)
}
}
}
pub fn encode_from_utf16_raw(
&mut self,
src: &[u16],
dst: &mut [u8],
last: bool,
) -> (EncoderResult, usize, usize) {
match *self {
VariantEncoder::SingleByte(ref mut v) => v.encode_from_utf16_raw(src, dst, last),
VariantEncoder::Utf8(ref mut v) => v.encode_from_utf16_raw(src, dst, last),
VariantEncoder::Gb18030(ref mut v) => v.encode_from_utf16_raw(src, dst, last),
VariantEncoder::Big5(ref mut v) => v.encode_from_utf16_raw(src, dst, last),
VariantEncoder::EucJp(ref mut v) => v.encode_from_utf16_raw(src, dst, last),
VariantEncoder::Iso2022Jp(ref mut v) => v.encode_from_utf16_raw(src, dst, last),
VariantEncoder::ShiftJis(ref mut v) => v.encode_from_utf16_raw(src, dst, last),
VariantEncoder::EucKr(ref mut v) => v.encode_from_utf16_raw(src, dst, last),
VariantEncoder::UserDefined(ref mut v) => v.encode_from_utf16_raw(src, dst, last),
}
}
pub fn encode_from_utf8_raw(
&mut self,
src: &str,
dst: &mut [u8],
last: bool,
) -> (EncoderResult, usize, usize) {
match *self {
VariantEncoder::SingleByte(ref mut v) => v.encode_from_utf8_raw(src, dst, last),
VariantEncoder::Utf8(ref mut v) => v.encode_from_utf8_raw(src, dst, last),
VariantEncoder::Gb18030(ref mut v) => v.encode_from_utf8_raw(src, dst, last),
VariantEncoder::Big5(ref mut v) => v.encode_from_utf8_raw(src, dst, last),
VariantEncoder::EucJp(ref mut v) => v.encode_from_utf8_raw(src, dst, last),
VariantEncoder::Iso2022Jp(ref mut v) => v.encode_from_utf8_raw(src, dst, last),
VariantEncoder::ShiftJis(ref mut v) => v.encode_from_utf8_raw(src, dst, last),
VariantEncoder::EucKr(ref mut v) => v.encode_from_utf8_raw(src, dst, last),
VariantEncoder::UserDefined(ref mut v) => v.encode_from_utf8_raw(src, dst, last),
}
}
}
pub enum VariantEncoding {
SingleByte(&'static [u16; 128], u16, u8, u8),
Utf8,
Gbk,
Gb18030,
Big5,
EucJp,
Iso2022Jp,
ShiftJis,
EucKr,
Replacement,
Utf16Be,
Utf16Le,
UserDefined,
}
impl VariantEncoding {
pub fn new_variant_decoder(&self) -> VariantDecoder {
match *self {
VariantEncoding::SingleByte(table, _, _, _) => SingleByteDecoder::new(table),
VariantEncoding::Utf8 => Utf8Decoder::new(),
VariantEncoding::Gbk | VariantEncoding::Gb18030 => Gb18030Decoder::new(),
VariantEncoding::Big5 => Big5Decoder::new(),
VariantEncoding::EucJp => EucJpDecoder::new(),
VariantEncoding::Iso2022Jp => Iso2022JpDecoder::new(),
VariantEncoding::ShiftJis => ShiftJisDecoder::new(),
VariantEncoding::EucKr => EucKrDecoder::new(),
VariantEncoding::Replacement => ReplacementDecoder::new(),
VariantEncoding::UserDefined => UserDefinedDecoder::new(),
VariantEncoding::Utf16Be => Utf16Decoder::new(true),
VariantEncoding::Utf16Le => Utf16Decoder::new(false),
}
}
pub fn new_encoder(&self, encoding: &'static Encoding) -> Encoder {
match *self {
VariantEncoding::SingleByte(table, run_bmp_offset, run_byte_offset, run_length) => {
SingleByteEncoder::new(encoding, table, run_bmp_offset, run_byte_offset, run_length)
}
VariantEncoding::Utf8 => Utf8Encoder::new(encoding),
VariantEncoding::Gbk => Gb18030Encoder::new(encoding, false),
VariantEncoding::Gb18030 => Gb18030Encoder::new(encoding, true),
VariantEncoding::Big5 => Big5Encoder::new(encoding),
VariantEncoding::EucJp => EucJpEncoder::new(encoding),
VariantEncoding::Iso2022Jp => Iso2022JpEncoder::new(encoding),
VariantEncoding::ShiftJis => ShiftJisEncoder::new(encoding),
VariantEncoding::EucKr => EucKrEncoder::new(encoding),
VariantEncoding::UserDefined => UserDefinedEncoder::new(encoding),
VariantEncoding::Utf16Be | VariantEncoding::Replacement | VariantEncoding::Utf16Le => {
unreachable!()
}
}
}
pub fn is_single_byte(&self) -> bool {
match *self {
VariantEncoding::SingleByte(_, _, _, _) | VariantEncoding::UserDefined => true,
_ => false,
}
}
}