Parses first EDN value from string.
:dispatch: a map of characters to functions which will receive the
parsed EDN value when encountering the char. Map may be nested for
dispatch characters. See README.md for examples.
:allow to process reader conditionals, or
:preserve to keep all branches
:features: - persistent set of feature keywords for reader conditionals (e.g.
Additional arguments to tools.reader may be passed with
:readers for passing reader tag functions.