Evaluate a single moonblade expression.
Usage:
xan eval [options] <expr>
xan eval --help
eval options:
-E, --explain Print concrete expression plan and pretty print
evaluated result.
-H, --headers <names> Pretend headers, separated by commas.
-R, --row <values> Pretend row with comma-separated cells.
Common options:
-h, --help Display this message