Sbn NPM | npm.io

sbn

A compiler for small drawing language sbn(SVG by Numbers). Inspired by John Maeda's book: Design by Numbers.

Supported Keywords

This compiler is work-in-progress. Here is a list of commands currently supported (v0.4.3) & planning to implement. (sbn language specification is compatible with Design by Numbers chapter 1 - 12)

Paper
Pen
Line
// comment
Set (variable)
{ } (block)
Nested block
Repeat
(+ - / *) (calculations)
[x, y] (dot)
Copy Dots (calculation on dot)
Same ? / NotSame? (question)
Smaller ? / NotSmaller? (question)
Command (function)
Load (import)

usage

browser

include sbn.js in your html, sbn object will be available in global scope.

<script src="./lib/sbn.js"></script>

Call compile method. The compiler creates SVG out of sbn code you passed.

var code = 'Paper 95\nPen 1\nLine 50 15 85 80\nPen 30\nLine 85 80 15 80\nPen 70\nLine 15 80 50 15'
var svg = sbn.compile(code)

document.body.innerHTML = svg

node

You can run sbn compiler on node to create SVG file.

var fs = require('fs')
var sbn = require('sbn')

var code = `
  Paper 95
  Pen 1
  Line 50 15 85 80
  Pen 30
  Line 85 80 15 80
  Pen 70
  Line 15 80 50 15
`

fs.writeFile("sbn_drawing.svg", sbn.compile(code), function(err) {
    console.log('SVG was saved!')
})