How to get a value of a attribute from gtf file by using the key

[zhengxinchang]

Dear Developer,

I hope you are doing well! I am working on a project using the noodle-gtf file. I have been unable to find a way to retrieve an attribute value by providing a key. Although it provides a 'get' method, this method only accepts index value. I would appreciate if you could provide a solution that allows me to input a key and retrieve its corresponding value.

Best regards,
Xinchang

[zaeleus]

gff::record::Attributes is a list of entries. You can currently use Iterator::find to search for a value by tag, e.g.,

let value = record
    .attributes()
    .iter()
    .find(|entry| entry.key() == key)
    .map(|entry| entry.value());