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Create and use real error types in the codecs

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This commit is contained in:
Clément Renault
2023-11-28 10:11:17 +01:00
parent d32eb11329
commit 548c8247c2
7 changed files with 43 additions and 38 deletions
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14
milli/src/heed_codec/script_language_codec.rs
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@ -1,4 +1,5 @@
use std::borrow::Cow;
use std::ffi::CStr;
use std::str;
use charabia::{Language, Script};
@ -10,17 +11,12 @@ impl<'a> heed::BytesDecode<'a> for ScriptLanguageCodec {
type DItem = (Script, Language);
fn bytes_decode(bytes: &'a [u8]) -> Result<Self::DItem, BoxedError> {
let sep = bytes
.iter()
.position(|b| *b == 0)
.ok_or("cannot find nul byte")
.map_err(BoxedError::from)?;
let (s_bytes, l_bytes) = bytes.split_at(sep);
let script = str::from_utf8(s_bytes)?;
let cstr = CStr::from_bytes_until_nul(bytes)?;
let script = cstr.to_str()?;
let script_name = Script::from_name(script);
let lan = str::from_utf8(l_bytes)?;
// skip '\0' byte between the two strings.
let lan_name = Language::from_name(&lan[1..]);
let lan = str::from_utf8(&bytes[script.len() + 1..])?;
let lan_name = Language::from_name(lan);
Ok((script_name, lan_name))
}