* extract _keys and _hash_map_get to types.ps
* correct sequential types equals - only compare if *both* arguments are
sequential
* implement equality for two hash-maps
- make sure readline has large enough string for steps2-A
- fix keyword? so that it doesn't leave anything extra on the stack
- fix argparse command line parsing so that that the second '--' on
the command line is not dropped.
Other:
- bash,make,postscript: quasiquote of vectors
- Fix Java slurp
- add time function to core.mal
- switches on *host-language* for make time-secs vs time-ms
- Ignore */experiments directories
- types: low-level mapping to the implementation language.
- core: functions on types that are exposed directly to mal.
- printer: implementation called by pr-str, str, prn, println.
- env: the environment implementation
- Also, unindent all TCO while loops so that the diff of step4 and
step5 are minimized.
