Andrés N. Robalino 803826cdcd 90 degree table rotations (clockwise and counter-clockwise) (#3086) ... Also for 180 degree is expected. Rotation is not exactly like pivoting (transposing) for instance, given the following table: ``` > echo [[col1, col2, col3]; [cell1, cell2, cell3] [cell4, cell5, cell6]] ───┬───────┬───────┬─────── # │ col1 │ col2 │ col3 ───┼───────┼───────┼─────── 0 │ cell1 │ cell2 │ cell3 1 │ cell4 │ cell5 │ cell6 ───┴───────┴───────┴─────── ``` To rotate it counter clockwise by 90 degrees, we can resort to first transposing (`pivot`) them adding a new column (preferably integers), sort by that column from highest to lowest, then remove the column and we have a counter clockwise rotation. ``` > echo [[col1, col2, col3]; [cell1, cell2, cell3] [cell4, cell5, cell6]] | pivot | each --numbered { = $it.item | insert idx $it.index } | sort-by idx | reverse | reject idx ───┬─────────┬─────────┬───────── # │ Column0 │ Column1 │ Column2 ───┼─────────┼─────────┼───────── 0 │ col3 │ cell3 │ cell6 1 │ col2 │ cell2 │ cell5 2 │ col1 │ cell1 │ cell4 ───┴─────────┴─────────┴───────── ``` Which we can get easily, in this case, by doing: ``` > echo [[col1, col2, cel3]; [cell1, cell2, cell3] [cell4, cell5, cell6]] | rotate counter-clockwise ───┬─────────┬─────────┬───────── # │ Column0 │ Column1 │ Column2 ───┼─────────┼─────────┼───────── 0 │ col3 │ cell3 │ cell6 1 │ col2 │ cell2 │ cell5 2 │ col1 │ cell1 │ cell4 ───┴─────────┴─────────┴───────── ``` There are also many powerful use cases with rotation, it makes a breeze creating tables with many columns, say: ``` echo 0..12 | rotate counter-clockwise | reject Column0 ───┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬──────────┬──────────┬──────────┬────────── # │ Column1 │ Column2 │ Column3 │ Column4 │ Column5 │ Column6 │ Column7 │ Column8 │ Column9 │ Column10 │ Column11 │ Column12 │ Column13 ───┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼──────────┼──────────┼──────────┼────────── 0 │ 0 │ 1 │ 2 │ 3 │ 4 │ 5 │ 6 │ 7 │ 8 │ 9 │ 10 │ 11 │ 12 ───┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴──────────┴──────────┴──────────┴────────── ```		2021-02-22 06:56:34 -05:00
..
commands	90 degree table rotations (clockwise and counter-clockwise) (#3086)	2021-02-22 06:56:34 -05:00
format_conversions	add "-0" as short for --headerless in "from" commands (#3042)	2021-02-22 20:25:17 +13:00
main.rs	nu-cli refactor moving commands into their own crate nu-command (#2910)	2021-01-12 17:59:53 +13:00