Finalise language syntax

[jparoz]

Decisions to make:

• Semicolons and curly braces vs significant indentation
  • Both, or just one? Probably pick one and stick with it.
• Comments
  • Probably change to -- comment to match Lua
  • Remove/change (* comment *) syntax?
• Custom binops
  • A la Haskell (a ++ b = ...; infixr 4 ++;)?
    • PRO: Currently implemented this way
    • PRO: Haskell is a much bigger language to draw from
    • CON: Can never remember the order of the things
  • A la Purescript (concat a b = ...; infixr 4 concat as ++;)
    • PRO: Easier to remember the order (because the "as" goes at the end)
    • PRO: Functions are always defined with a name, which helps with documentation and readability
    • PRO: Possibly less ambiguity (mental, not parsing ambiguity) WRT what is a pattern match and what is part of the defined name on a LHS
    • CON: Not really necessary