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rustdoc: improve <wbr>-insertion for SCREAMING_CAMEL_CASE #131370

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Oct 8, 2024
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rustdoc: improve <wbr>-insertion for SCREAMING_CAMEL_CASE #131370

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e23419f
rustdoc: improve `<wbr>`-insertion for SCREAMING_CAMEL_CASE
notriddle Oct 7, 2024
f7eced3
Add comment to describe camelcase line break
notriddle Oct 7, 2024
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2 changes: 1 addition & 1 deletion src/librustdoc/html/escape.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -108,7 +108,7 @@ impl<'a> fmt::Display for EscapeBodyTextWithWbr<'a> {
|| pk.map_or(true, |(_, t)| t.chars().any(|c| c.is_uppercase()));
let next_is_underscore = || pk.map_or(true, |(_, t)| t.contains('_'));
let next_is_colon = || pk.map_or(true, |(_, t)| t.contains(':'));
if i - last > 3 && is_uppercase() && !next_is_uppercase() {
if i - last > 3 && is_uppercase() && !next_is_uppercase() && !next_is_underscore() {
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I think this code is now complex enough to deserve a small comment (at least on this if) to explain what it's checking (with some examples to make it even simpler).

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Sure. No problem.

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Awesome, thanks!

EscapeBodyText(&text[last..i]).fmt(fmt)?;
fmt.write_str("<wbr>")?;
last = i;
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4 changes: 4 additions & 0 deletions src/librustdoc/html/escape/tests.rs
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Expand Up @@ -24,6 +24,10 @@ fn escape_body_text_with_wbr() {
assert_eq!(&E("first:second").to_string(), "first:<wbr>second");
assert_eq!(&E("first::second").to_string(), "first::<wbr>second");
assert_eq!(&E("MY_CONSTANT").to_string(), "MY_<wbr>CONSTANT");
assert_eq!(
&E("_SIDD_MASKED_NEGATIVE_POLARITY").to_string(),
"_SIDD_<wbr>MASKED_<wbr>NEGATIVE_<wbr>POLARITY"
);
// a string won't get wrapped if it's less than 8 bytes
assert_eq!(&E("HashSet").to_string(), "HashSet");
// an individual word won't get wrapped if it's less than 4 bytes
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