Features:

• custom syntax (Hocon https://github.com/typesafehub/config/blob/master/HOCON.md inspired, see https://github.com/paradigmatic/Configrity as well)
  • expressions
• save support = keep everything in original file as is
  • ordering of original file
  • newlines
  • comments
  • formatting
• better API
• better error reporting w/o exceptions

Phases:

• load: file -> DOM without eval
• merge of DOMs = DOM tree
• eval = flatten expr. eval
• save of DOM
• save of eval (drop of formatting)

i:File => save(load(i)) == i

Operations:

• load
• save
• edit(K, V, scope)
• remove(K, scope)
• add(K, V, scope)
• change_type(K, scope)