xan

Overview ¶

Package xan implements the `xan` CSV toolkit built-in.

Subset matching just-bash's port: subcommands `select`, `slice`, `filter`, `count`, `flatten`, `headers`, `stats`, `cat`, `to`, `from`, `head`, `tail`, `sort`, `dedup`, `transpose`, and `join`. All file I/O routes through Context.FS; stdin via Context.Stdin; stdout via Context.Stdout.

Filter expressions are a deliberate subset of xan's moonblade language: `COL OP VALUE` where OP is one of `==` / `!=` / `<` / `<=` / `>` / `>=` (numeric if both sides parse as float, else string) plus `=~` / `!~` (regex). COL is matched by header name or 1-based index.