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Don't slice midway through multi-byte char when detecting line ending

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This commit is contained in:
Antonio Scandurra 2022-07-06 10:21:30 +02:00
parent 5e2306d0e0
commit 113eb9b94f
2 changed files with 18 additions and 3 deletions
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10
crates/text/src/text.rs
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@ -2353,9 +2353,13 @@ impl LineEnding {
}
pub fn detect(text: &str) -> Self {
if let Some(ix) = text[..cmp::min(text.len(), 1000)].find(&['\n']) {
let text = text.as_bytes();
if ix > 0 && text[ix - 1] == b'\r' {
let mut max_ix = cmp::min(text.len(), 1000);
while !text.is_char_boundary(max_ix) {
max_ix -= 1;
}
if let Some(ix) = text[..max_ix].find(&['\n']) {
if ix > 0 && text.as_bytes()[ix - 1] == b'\r' {
Self::Windows
} else {
Self::Unix