nushell/TODO.md

Todo

• Env shorthand
• String interpolation
• Aliases
• Env vars
• Sub commands
• Floats
• Tests
• Decl requires $ but shouldn't
• alias highlighting at call site
• refactor into subcrates
• subcommand alias
• type inference from successful parse (eg not List<unknown> but List<int>)
• parsing tables
• Block params
• Ranges
• Column path
• ...rest without calling it rest
• Iteration (each) over tables
• Row conditions
• Simple completions
• Detecting $it currently only looks at top scope but should find any free $it in the expression (including subexprs)
• Signature needs to make parameters visible in scope before block is parsed
• Externals
• Modules and imports
• Exports
• Source
• Error shortcircuit (stopping on first error). Revised: errors emit first, but can be seen by commands.
• Value serialization
• Handling rows with missing columns during a cell path
• finish operator type-checking
• Config file loading
• block variable captures
• improved history and config paths
• ctrl-c support
• operator overflow
• Support for $in
• config system
• plugins
• external plugin signatures
• external command signatures
• shells
• autoenv
• dataframes
• overlays (replacement for autoenv), adding modules to shells
• port over which logic
• port test support crate so we can test against sample files, including multiple inputs into the CLI
• benchmarking
• finish adding config properties
• system-agnostic test cases
• exit codes
• length of time the command runs put in the env (CMD_DURATION_MS)

Post-nushell merge:

• Input/output types
• let [first, rest] = [1, 2, 3] (design question: how do you pattern match a table?)

Maybe:

• default param values?
• Unary not?

module git { external fn "git clone" [ arg: int, --flag: string(custom-completion), ???? ] ; }

plugin git { ... }