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Wait, really? scrambles to check woah... I've never seen typed yaml, this is wild. negative: !!int -12 zero: !!int 0 positive: !!int 34 Can't say

by kortex 6y ago

Wait, really? scrambles to check woah... I've never seen typed yaml, this is wild. negative: !!int -12 zero: !!int 0 positive: !!int 34 Can't say I love the notation, but indeed that is type annotations. I guess neither "yaml type hints" nor "yaml type annotations" are the right query. Had to search explicitly for "yaml tags".

wowwow 6y ago
Types are !!screaming at reader. Don't want to start blameshitting, but is yaml supposed to be a simple human-readable format?
- kchr 6y ago
  It is screaming with double negations!
  - PaulDavisThe1st 6y ago
    It's not screaming without double negations!!
Varriount 6y ago
The neat thing is that you can use tags to represent custom data structures or functions. For example, AWS Cloudformation uses YAML tags as a shorthand for template functions [0]. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-base64.html https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGui...
- kanox 6y ago
  Depending on the parser you can also use them to call arbitrary code. This used to be the default behavior of `pyyaml.load`.