Linedrawing codes

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|--|
| ||
+-+^<
|--|

| ^/ - top left corner
| ^[ - bottom left corner
| ^\ - top right corner
| ^] - bottom right corner

- ^! - down tee
| ^| - vertical
- ^~ - up tee

+ ^> - right tee
+ ^+ - cross
^< ^< - left tee

- ^- - horizontal
= ^= - double horizontal line