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//! ref: composer/vendor/symfony/string/ByteString.php
use crate::symfony::string::code_point_string::CodePointString;
#[derive(Debug, Clone)]
pub struct ByteString {
pub(crate) string: String,
}
impl ByteString {
pub fn new(string: &str) -> Self {
Self {
string: string.to_string(),
}
}
/// `from_encoding` is `""` for PHP's `null`.
pub fn to_code_point_string(&self, from_encoding: &str) -> CodePointString {
// The source `string` is always valid UTF-8 (Rust `String`/`&str` guarantee), so
// `preg_match('//u', ...)` always holds.
if matches!(from_encoding, "" | "utf8" | "utf-8" | "UTF8" | "UTF-8") {
return CodePointString {
string: self.string.clone(),
};
}
let valid_encoding = shirabe_php_shim::mb_detect_encoding(
&self.string,
Some(vec![from_encoding.to_string()]),
true,
)
.is_some();
// PHP throws InvalidArgumentException. Callers detect `from_encoding` from this very
// string, so a mismatch is a programming error.
assert!(valid_encoding, "Invalid \"{}\" string.", from_encoding);
CodePointString {
string: shirabe_php_shim::mb_convert_encoding(
self.string.clone().into_bytes(),
"UTF-8",
from_encoding,
),
}
}
}
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