Boxdraw

vscode extension for drawing figures with ruled line characters.

features

You can draw figures with ruled line characters and arrows.

usage

general

function	keyboard shortcuts
enable / disable boxdraw mode	`ctrl + alt + m`

boxdraw mode

function	keyboard shortcuts
draw ruled line characters	`ctrl + arrow key` or `alt + arrow key`
draw arrow characters	`ctrl + alt + arrow key`
clear characters	`ctrl + shift + arrow key` or `alt + shift + arrow key`
switch the drawing mode (ruled line + arrow / block)	`ctrl + alt + b`
move the cursor up and down	`up / down arrow key`

note

vscode
- settings
  - Please use monospaced Japanese fonts.
  - Please indent by space.
- limitation
  - Multi-cursor is not supported.
- internal implementation of double-byte characters
  - In vscode, many double-byte symbols are treated as half-width characters internally. As a result, moving the cursor up and down will cause it to rattle left and right. See isFullWidthCharacter() in https://github.com/microsoft/vscode/blob/main/src/vs/base/common/strings.ts
boxdraw
- spec
  - cursorUp/cursorDown
    - It suppresses left and right rattling when moving the cursor up and down due to the ruled line characters being calculated internally with one half-width character.
  - cursorDown
    - The bottom line does not implement the movement to move to the end of the line.
  - cursorUpSelect/cursorDownSelect
    - It does not implement control of the selection area.

acknowledgments

The basic idea of Boxdraw is based on xyzzy's boxdraw.l .