AST 2.1 Abstract Syntax Tree

[Rich2]

AST Version 2.1

The syntax tree is defined by the following hierarchy from lowest precedence to highest.

1 Statements
2 Assignment operator expressions
3 Colon operator expressions
4 Clauses
5 The rest of the Scala operator precedence value
6 Spaced Tokens
7 Dot separated Tokens

A File can be interpreted as an expression or a statement sequence. Files and directories can be included in the syntax tree. This needs to be worked out.

in version 2.0, colon operator expressions had a higher precedence than clauses. In version 1 they had a higher precedence than an assignment operator.