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feat(transformer): decode xml character entity &#xhhhh and &#nnnn; (#4235)

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This commit is contained in:
Boshen 2024-07-13 02:38:06 +00:00
parent 9df60da6f3
commit 7eb960d6e9
1 changed files with 28 additions and 11 deletions
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39
crates/oxc_transformer/src/react/jsx.rs
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@ -947,7 +947,7 @@ impl<'a> ReactJsx<'a> {
/// * See <https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references>
/// Code adapted from <https://github.com/microsoft/TypeScript/blob/514f7e639a2a8466c075c766ee9857a30ed4e196/src/compiler/transformers/jsx.ts#L617C1-L635>
fn decode_entities(s: &str) -> String {
let mut buffer = vec![];
let mut buffer = String::new();
let mut chars = s.char_indices();
let mut prev = 0;
while let Some((i, c)) = chars.next() {
@ -961,21 +961,38 @@ impl<'a> ReactJsx<'a> {
}
}
if let Some(end) = end {
let word = &s[start + 1..end];
buffer.extend_from_slice(s[prev..start].as_bytes());
buffer.push_str(&s[prev..start]);
prev = end + 1;
if let Some(c) = XML_ENTITIES.get(word) {
buffer.extend_from_slice(c.to_string().as_bytes());
let word = &s[start + 1..end];
if let Some(decimal) = word.strip_prefix('#') {
if let Some(hex) = decimal.strip_prefix('x') {
if let Some(c) =
u32::from_str_radix(hex, 16).ok().and_then(char::from_u32)
{
// &x0123;
buffer.push(c);
continue;
}
} else if let Some(c) = decimal.parse::<u32>().ok().and_then(char::from_u32)
{
// &#0123;
buffer.push(c);
continue;
}
} else if let Some(c) = XML_ENTITIES.get(word) {
// &quote;
buffer.push(*c);
continue;
}
// fallback
buffer.push('&');
buffer.push_str(word);
buffer.push(';');
}
}
}
buffer.extend_from_slice(s[prev..].as_bytes());
#[allow(unsafe_code)]
// SAFETY: The buffer is constructed from valid utf chars.
unsafe {
String::from_utf8_unchecked(buffer)
}
buffer.push_str(&s[prev..]);
buffer
}
}