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fixup! Implement async postproc_pagebreaks
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@ -149,22 +149,22 @@ pub fn postproc_prefix(line_prefix: &str, inp: impl AsyncRead + Send) -> impl As
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pub fn postproc_pagebreaks(line_prefix: &str, inp: impl AsyncRead) -> impl AsyncRead {
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let form_feed = b'\x0c';
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let regex = regex::bytes::Regex::new("\n").unwrap();
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let mut page_count = 0;
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let mut line_prefix = format!("\n{}Page {}:", line_prefix, page_count + 1);
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let mut page_count = 1;
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let mut line_prefix = format!("\n{}Page {}:", line_prefix, page_count);
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let inp_stream = ReaderStream::new(inp);
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let oup_stream = stream! {
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yield Ok(Bytes::copy_from_slice(line_prefix.as_bytes()));
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for await chunk in inp_stream {
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match chunk {
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Err(e) => yield Err(e),
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Ok(chunk) => {
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let chunk_iter = chunk.split(|byte| byte == &form_feed);
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let chunk_iter = chunk.split_inclusive(|byte| byte == &form_feed);
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for sub_chunk in chunk_iter {
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if sub_chunk.contains(&b'\n') {
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yield Ok(Bytes::copy_from_slice(®ex.replace_all(&sub_chunk, line_prefix.as_bytes())));
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if sub_chunk == [form_feed] {
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page_count += 1;
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line_prefix = format!("\n{}Page {}:", line_prefix, page_count);
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} else {
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yield Ok(Bytes::copy_from_slice(®ex.replace_all(&sub_chunk, line_prefix.as_bytes())));
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}
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}
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}
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