Match A String Until A Case Insensitive Tag With nom In Rust

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pub fn code_block(source: &str) -> IResult<&str, Section> {     let (_, b) = many_till(anychar, tag_no_case("#+end_src"))(source)?;     let snippet: String = b.0.iter().collect();     dbg!(snippet);     Ok((         source,         Section::Code {             lang: None,             text: "code".to_string(),         },     )) }