browserify transform for ruby style symbols

symbolic.js

var through = require('through2');
var symbols = /¤([^\s,:;()\[\]{}=]+)/g

function strings(string, match) {
  return "'" + match + "'"
}

module.exports = function (file) {
  return through(function (buffer, enc, next) {
    var input = buffer.toString('utf8')
    var output = input.replace(symbols, strings);
    this.push(output)
    next();
  });
};

symbolic.sjs

macro to_str {
  case { _ ($toks ...) } => {
    return [makeValue(#{ $toks ... }.map(unwrapSyntax).join(''), #{ here })];
  }
}
operator (:) 14 { $key } => #{ to_str $key }