Markup Languages


I was looking into Swagger YAML and saw that it had a very simplified markup using just colons and indentation for describing hierarchical information. The evolution from XML -> JSON -> YAML shows that transition from more formal and explicit XML to more informal looking YAML.


servers:
  - url: http://api.example.com/v1
    description: Optional server description, e.g. Main (production) server
  - url: http://staging-api.example.com
    description: Optional server description, e.g. Internal staging server for testing


YAML vs XML vs JSON

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