Not all attributes of tag in .attributes()

[swi2012]

I'm trying quick-xml and i found a strnage behavior on my xml file (a sample attached). When i parse event Begin on tag SECURITY i get only two first attributes. But on tag RECORDS i get all attributes successfully.
My code like

Ok(Event::Start(ref e)) => {
                        if let b"SECURITY" = e.name() {
                            // cycle through attrs
                            for el in e.attributes() {
                                let e = el?;
                                print!("{}, ", std::str::from_utf8(e.key)?);
                            }
                            println!();
                        };
[1.xml.gz](https://github.com/tafia/quick-xml/files/6868035/1.xml.gz)

[tafia]

I can't get your file, are you still having some issue?

[swi2012]

Hello. Yes issue is still here.
Here is file content

<?xml version="1.0" encoding="windows-1251"?>
<MICEX_DOC xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <SECURITY SecurityId="PLZL" ISIN="RU000A0JNAA8" SecShortName="Short Name" PriceType="CASH">
    <RECORDS RecNo="1" TradeNo="1111" TradeDate="2021-07-08" TradeTime="15:00:00" BuySell="S" SettleCode="Y1Dt" Decimals="3" Price="13057.034" Quantity="766" Value="10001688.29" AccInt="0" Amount="10001688.29" Balance="766" TrdAccId="X0011" ClientDetails="2222" CPFirmId="3333" CPFirmShortName="Firm Short Name" Price2="13057.034" RepoPart="2" ReportTime="16:53:27" SettleTime="17:47:06" ClientCode="4444" DueDate="2021-07-09" EarlySettleStatus="N" RepoRate="5.45" RateType="FIX"/>
  </SECURITY>
</MICEX_DOC>

[tafia]

I haven't tried but your encoding is windows-1251 not utf8, could you try using unescape_and_decode ?

[swi2012]

I use feature 'encoding'. Even so with utf8 file it the same:

<?xml version="1.0" encoding="utf-8"?>
<MICEX_DOC xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <SECURITY SecurityId="PLZL" ISIN="RU000A0JNAA8" SecShortName="Short Name" PriceType="CASH">
    <RECORDS RecNo="1" TradeNo="1111" TradeDate="2021-07-08" TradeTime="15:00:00" BuySell="S" SettleCode="Y1Dt" Decimals="3" Price="13057.034" Quantity="766" Value="10001688.29" AccInt="0" Amount="10001688.29" Balance="766" TrdAccId="X0011" ClientDetails="2222" CPFirmId="3333" CPFirmShortName="Firm Short Name" Price2="13057.034" RepoPart="2" ReportTime="16:53:27" SettleTime="17:47:06" ClientCode="4444" DueDate="2021-07-09" EarlySettleStatus="N" RepoRate="5.45" RateType="FIX"/>
  </SECURITY>
</MICEX_DOC>

output:
read file 1.xml reader opened some SECURITY: SecurityId, ISIN, RECORDS: RecNo,TradeNo,TradeDate,TradeTime,BuySell,SettleCode,Decimals,Price,Quantity,Value,AccInt,Amount,Balance,TrdAccId,ClientDetails,CPFirmId,CPFirmShortName,Price2,RepoPart,ReportTime,SettleTime,ClientCode,DueDate,EarlySettleStatus,RepoRate,RateType,

[tafia]

Hi,
I've tried this test and it seems to work as expected. Closing for now, feel free to reopen and provide more information.

#[test]
fn test_issue299() -> Result<(), Error> {
    let xml = r#"
<?xml version="1.0" encoding="utf8"?>
<MICEX_DOC xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <SECURITY SecurityId="PLZL" ISIN="RU000A0JNAA8" SecShortName="Short Name" PriceType="CASH">
    <RECORDS RecNo="1" TradeNo="1111" TradeDate="2021-07-08" TradeTime="15:00:00" BuySell="S" SettleCode="Y1Dt" Decimals="3" Price="13057.034" Quantity="766" Value="10001688.29" AccInt="0" Amount="10001688.29" Balance="766" TrdAccId="X0011" ClientDetails="2222" CPFirmId="3333" CPFirmShortName="Firm Short Name" Price2="13057.034" RepoPart="2" ReportTime="16:53:27" SettleTime="17:47:06" ClientCode="4444" DueDate="2021-07-09" EarlySettleStatus="N" RepoRate="5.45" RateType="FIX"/>
  </SECURITY>
</MICEX_DOC>
"#;
    let mut reader = Reader::from_str(xml);
    loop {
        match reader.read_event_unbuffered()? {
            Start(e) | Empty(e) => {
                let attr_count = match e.name() {
                    b"MICEX_DOC" => 1,
                    b"SECURITY" => 4,
                    b"RECORDS" => 26,
                    _ => unreachable!(),
                };
                assert_eq!(
                    attr_count,
                    e.attributes().filter(Result::is_ok).count(),
                    "mismatch att count on '{}'",
                    reader.decoder().decode(e.name())?
                );
            }
            Eof => break,
            _ => (),
        }
    }
    Ok(())
}

(I'll add it to the tests).