%YAML 1.1
---
!!map { 
    ? !!str "in the block context"
    : !!map {
        ? !!str "indentation should be kept"
        : !!map {
            ? !!str "but in the flow context"
            : !!seq [ !!str "it may be violated" ]
        }
    }
}
--- !!str
"the parser does not require scalars to be indented with at least one space"
--- !!str
"the parser does not require scalars to be indented with at least one space"
--- !!map
{ ? !!str "foo": { ? !!str "bar" : !!str "quoted scalars may not adhere indentation" } }