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move to using Eci enum

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Decouples the Eci and CharacterSet concepts within the library. Character sets can now exist independently from Eci encodation schemes.
This commit is contained in:
Henry Schimke
2023-03-04 14:13:50 -06:00
parent 15859b9f10
commit 8a0744e534
21 changed files with 403 additions and 182 deletions
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181
src/common/eci.rs Normal file
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use std::fmt::Display;
use super::CharacterSet;
#[derive(Copy,Clone,Debug,PartialEq, Eq)]
pub enum Eci {
Unknown = -1,
Cp437 = 2, // obsolete
ISO8859_1 = 3,
ISO8859_2 = 4,
ISO8859_3 = 5,
ISO8859_4 = 6,
ISO8859_5 = 7,
ISO8859_6 = 8,
ISO8859_7 = 9,
ISO8859_8 = 10,
ISO8859_9 = 11,
ISO8859_10 = 12,
ISO8859_11 = 13,
ISO8859_13 = 15,
ISO8859_14 = 16,
ISO8859_15 = 17,
ISO8859_16 = 18,
Shift_JIS = 20,
Cp1250 = 21,
Cp1251 = 22,
Cp1252 = 23,
Cp1256 = 24,
UTF16BE = 25,
UTF8 = 26,
ASCII = 27,
Big5 = 28,
GB2312 = 29,
EUC_KR = 30,
GB18030 = 32,
UTF16LE = 33,
UTF32BE = 34,
UTF32LE = 35,
ISO646_Inv = 170,
Binary = 899,
}
impl Eci {
pub fn can_encode(self) -> bool {
(self as i32) >= 899
}
}
impl From<u32> for Eci {
fn from(value: u32) -> Self {
(value as i32).into()
}
}
impl From<i32> for Eci {
fn from(value: i32) -> Self {
match value {
0 | 2 => Eci::Cp437,
1 | 3 => Eci::ISO8859_1,
4 => Eci::ISO8859_2,
5 => Eci::ISO8859_3,
6 => Eci::ISO8859_4,
7 => Eci::ISO8859_5,
8 => Eci::ISO8859_6,
9 => Eci::ISO8859_7,
10 => Eci::ISO8859_8,
11 => Eci::ISO8859_9,
12 => Eci::ISO8859_10,
13 => Eci::ISO8859_11,
15 => Eci::ISO8859_13,
16 => Eci::ISO8859_14,
17 => Eci::ISO8859_15,
18 => Eci::ISO8859_16,
20 => Eci::Shift_JIS,
21 => Eci::Cp1250,
22 => Eci::Cp1251,
23 => Eci::Cp1252,
24 => Eci::Cp1256,
25 => Eci::UTF16BE,
26 => Eci::UTF8,
27 => Eci::ASCII,
28 => Eci::Big5,
29 => Eci::GB18030,
30 => Eci::EUC_KR,
32 => Eci::GB18030,
33 => Eci::UTF16LE,
34 => Eci::UTF32BE,
35 => Eci::UTF32LE,
170 => Eci::ASCII,
898 => Eci::Binary,
_ => Eci::Unknown,
}
}
}
impl From<CharacterSet> for Eci {
fn from(value: CharacterSet) -> Self {
match value {
CharacterSet::Cp437 => Eci::Cp437,
CharacterSet::ISO8859_1 => Eci::ISO8859_1,
CharacterSet::ISO8859_2 => Eci::ISO8859_2,
CharacterSet::ISO8859_3 => Eci::ISO8859_3,
CharacterSet::ISO8859_4 => Eci::ISO8859_4,
CharacterSet::ISO8859_5 => Eci::ISO8859_5,
CharacterSet::ISO8859_7 => Eci::ISO8859_7,
CharacterSet::ISO8859_9 => Eci::ISO8859_9,
CharacterSet::ISO8859_13 => Eci::ISO8859_13,
CharacterSet::ISO8859_15 => Eci::ISO8859_15,
CharacterSet::ISO8859_16 => Eci::ISO8859_16,
CharacterSet::Shift_JIS => Eci::Shift_JIS,
CharacterSet::Cp1250 => Eci::Cp1250,
CharacterSet::Cp1251 => Eci::Cp1251,
CharacterSet::Cp1252 => Eci::Cp1252,
CharacterSet::Cp1256 => Eci::Cp1256,
CharacterSet::UTF16BE => Eci::UTF16BE,
CharacterSet::UTF8 => Eci::UTF8,
CharacterSet::ASCII => Eci::ASCII,
CharacterSet::Big5 => Eci::Big5,
CharacterSet::GB2312 => Eci::GB2312,
CharacterSet::GB18030 => Eci::GB18030,
CharacterSet::EUC_KR => Eci::EUC_KR,
CharacterSet::UTF16LE => Eci::UTF16LE,
CharacterSet::UTF32BE => Eci::UTF32BE,
CharacterSet::UTF32LE => Eci::UTF32LE,
CharacterSet::Binary => Eci::Binary,
CharacterSet::ISO8859_6 => Eci::ISO8859_6,
CharacterSet::ISO8859_8 => Eci::ISO8859_8,
CharacterSet::ISO8859_10 => Eci::ISO8859_10,
CharacterSet::ISO8859_11 =>Eci::ISO8859_11,
CharacterSet::ISO8859_14 => Eci::ISO8859_14,
_=>Eci::Unknown,
}
}
}
impl From<Eci> for CharacterSet {
fn from(value: Eci) -> Self {
match value {
Eci::Cp437 => CharacterSet::Cp437,
Eci::ISO8859_1 => CharacterSet::ISO8859_1,
Eci::ISO8859_2 => CharacterSet::ISO8859_2,
Eci::ISO8859_3 => CharacterSet::ISO8859_3,
Eci::ISO8859_4 => CharacterSet::ISO8859_4,
Eci::ISO8859_5 => CharacterSet::ISO8859_5,
Eci::ISO8859_6 => CharacterSet::ISO8859_6,
Eci::ISO8859_7 => CharacterSet::ISO8859_7,
Eci::ISO8859_8 => CharacterSet::ISO8859_8,
Eci::ISO8859_9 => CharacterSet::ISO8859_9,
Eci::ISO8859_10 => CharacterSet::ISO8859_10,
Eci::ISO8859_11 => CharacterSet::ISO8859_11,
Eci::ISO8859_13 => CharacterSet::ISO8859_13,
Eci::ISO8859_14 => CharacterSet::ISO8859_14,
Eci::ISO8859_15 => CharacterSet::ISO8859_15,
Eci::ISO8859_16 => CharacterSet::ISO8859_16,
Eci::Shift_JIS => CharacterSet::Shift_JIS,
Eci::Cp1250 => CharacterSet::Cp1250,
Eci::Cp1251 => CharacterSet::Cp1251,
Eci::Cp1252 => CharacterSet::Cp1252,
Eci::Cp1256 => CharacterSet::Cp1256,
Eci::UTF16BE => CharacterSet::UTF16BE,
Eci::UTF8 => CharacterSet::UTF8,
Eci::ASCII => CharacterSet::ASCII,
Eci::Big5 => CharacterSet::Big5,
Eci::GB2312 => CharacterSet::GB2312,
Eci::EUC_KR => CharacterSet::EUC_KR,
Eci::GB18030 => CharacterSet::GB18030,
Eci::UTF16LE => CharacterSet::UTF16LE,
Eci::UTF32BE => CharacterSet::UTF32BE,
Eci::UTF32LE => CharacterSet::UTF32LE,
Eci::ISO646_Inv => CharacterSet::ASCII,
Eci::Binary => CharacterSet::Binary,
_ => CharacterSet::Unknown,
}
}
}
impl Display for Eci {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f,"{}", *self as i32)
}
}