#[inline]
pub(crate) fn strip_sse_field<'a>(line: &'a str, field: &str) -> Option<&'a str> {
    line.strip_prefix(&format!("{field}: "))
        .or_else(|| line.strip_prefix(&format!("{field}:")))
}

#[cfg(test)]
mod tests {
    use super::strip_sse_field;

    #[test]
    fn strip_sse_field_accepts_optional_space() {
        assert_eq!(
            strip_sse_field("data: {\"ok\":true}", "data"),
            Some("{\"ok\":true}")
        );
        assert_eq!(
            strip_sse_field("data:{\"ok\":true}", "data"),
            Some("{\"ok\":true}")
        );
        assert_eq!(
            strip_sse_field("event: message_start", "event"),
            Some("message_start")
        );
        assert_eq!(
            strip_sse_field("event:message_start", "event"),
            Some("message_start")
        );
        assert_eq!(strip_sse_field("id:1", "data"), None);
    }
}