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wezterm: fix panic when a large paste is chunked in an emoji
wezterm splits pastes into chunks of 1KB. If that chunk was in the middle of a UTF8 multibyte sequence, the rust string library would panic. This commit rounds the chunk size up to the next character boundary. closes: https://github.com/wez/wezterm/issues/281
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@ -45,7 +45,13 @@ fn schedule_next_paste(paste: &Arc<Mutex<Paste>>) {
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let pane = mux.get_pane(locked.pane_id).unwrap();
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let remain = locked.text.len() - locked.offset;
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let chunk = remain.min(PASTE_CHUNK_SIZE);
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let mut chunk = remain.min(PASTE_CHUNK_SIZE);
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// Make sure we chunk at a char boundary, otherwise the
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// slice operation below will panic
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while !locked.text.is_char_boundary(locked.offset + chunk) && chunk < remain {
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chunk += 1;
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}
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let text_slice = &locked.text[locked.offset..locked.offset + chunk];
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pane.send_paste(text_slice).unwrap();
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