Add support for string config fields - #5
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Looks good. Just one question regarding the forbidden characters:
ABuljko
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August 11, 2026 17:11
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Aug 12, 2026
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Thanks! Please remove the outdated comment and add an entry to the changelog.
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Thanks! To do before merging:
- squash commits
- create draft PR for nitrokey-3-firmware to show how this is used
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Should i temporarily link the nitrokey-3-firmware PR to my branch of the admin-app instead of main so that it can be tested properly |
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Yes, you can use a |
- Add FieldType::String and ConfigValueMut::String, backed by a StringView so any String<N> can be used - Put both after U8 so the existing type ids stay the same - Take the max length from the config struct; too long gives DataTooLong - Check the length before clear() so a rejected value keeps the old one - Store arbitrary UTF-8; the client sanitizes the value before displaying it - Enable the serde feature of heapless, needed for StringView's Serialize impl
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FieldType::StringandConfigValueMut::String(&mut StringView)U8, soBool=0andU8=1stay the sameFieldType::Stringa unit variant: the max length comes from the config struct, and values that are too long giveDataTooLongStringView, so anyString<N>works: hold aString<32>and passas_mut_view()InvalidValue; the directional marks are still allowedclear(), so a rejected value keeps the old oneserdefeature ofheapless, needed forStringView'sSerializeimpl