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Encode empty attributes with shorthand syntax

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This commit is contained in:
Laurenz 2025-06-19 17:11:13 +02:00
parent f364b3c323
commit fee6844045
1 changed files with 13 additions and 8 deletions
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21
crates/typst-html/src/encode.rs
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@ -69,16 +69,21 @@ fn write_element(w: &mut Writer, element: &HtmlElement) -> SourceResult<()> {
for (attr, value) in &element.attrs.0 {
w.buf.push(' ');
w.buf.push_str(&attr.resolve());
w.buf.push('=');
w.buf.push('"');
for c in value.chars() {
if charsets::is_valid_in_attribute_value(c) {
w.buf.push(c);
} else {
write_escape(w, c).at(element.span)?;
// If the string is empty, we can use shorthand syntax.
// `<elem attr="">..</div` is equivalent to `<elem attr>..</div>`
if !value.is_empty() {
w.buf.push('=');
w.buf.push('"');
for c in value.chars() {
if charsets::is_valid_in_attribute_value(c) {
w.buf.push(c);
} else {
write_escape(w, c).at(element.span)?;
}
}
w.buf.push('"');
}
w.buf.push('"');
}
w.buf.push('>');