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xml: Cache regex in custom_unescape

This commit is contained in:
Adrian Wielgosik 2024-09-10 17:49:38 +02:00 committed by TÖRÖK Attila
parent fd61be2f52
commit aded790672
1 changed files with 4 additions and 1 deletions
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5
core/src/xml/tree.rs
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@ -10,6 +10,7 @@ use quick_xml::escape::escape;
use quick_xml::events::BytesStart;
use regress::Regex;
use std::fmt;
use std::sync::OnceLock;
pub const ELEMENT_NODE: u8 = 1;
pub const TEXT_NODE: u8 = 3;
@ -555,6 +556,8 @@ impl<'gc> fmt::Debug for XmlNode<'gc> {
}
}
static ENTITY_REGEX: OnceLock<Regex> = OnceLock::new();
/// Handles flash-specific XML unescaping behavior.
/// We accept all XML entities, and also accept standalone '&' without
/// a corresponding ';'
@ -564,7 +567,7 @@ pub fn custom_unescape(
) -> Result<String, quick_xml::Error> {
let input = decoder.decode(data)?;
let re = Regex::new(r"&[^;]*;").unwrap();
let re = ENTITY_REGEX.get_or_init(|| Regex::new(r"&[^;]*;").unwrap());
let mut result = String::new();
let mut last_end = 0;