proj-oot-ootPrincipals

• Syntax is for grouping and for ; standard control flow constructs do not belong in basic language syntax, but rather go in the std metaprogramming library
• You should be able to tell how an expression parses without knowing the definition of the operators used

whitespace:

• the presence or absense of whitespace matters
• how many whitespaces you have does not matter
• newlines sometimes matter; they are equivalent to 'whitespace : whitespace', except when inside a multiline environment