GradientScript parser

README.md

What is this??

I'm thinking of making a scripting/programming language for GradientOS called "GradientScript".

For now, it only knows how to "import modules".

I'm thinking of parsing the code, then executing it on a setTimeout and then return an GrSEnviron(ment)

Where do you run this?

You must run this inside of devtools (F12) in GradientOS!! 😠⚡⛈

After you run this, you can, of course, do whatever you want. But for now it's in the rael beta modez.

- From the Gradient Man (RAEL!1!!)

grs.js

if (!("grOS" in window)) grOS = {}
grOS.execGrS = function(grS) {
  class GrSEnviron {
    constructor() {
      var types = ["script", "module"]
      var type = "script"
      this.getType = function() {
        return type
      }
      this.setType = function(nw) {
        if (types.indexOf(nw) == -1) {
          throw TypeError("Unknown type")
        }
        type = nw
      }
      this.freezeEnv = function() {
        delete this.setType
        delete this.freezeEnv
        delete this.addVars
      }
      var vars = new Map()
      this.getVars = function() {
        if ("freezeEnv" in this) return vars
        var res = new Map()
        for (var k of Array.from(vars.keys())) {
          res.set(k, vars.get(k))
        }
        return res
      }
      this.addVars = function(nm, val) {
        vars.set(nm, val)
      }
    }
  }
  function scr2Obj() {
    var lns = grS.split("\n")
    var res = []
    function parseStr(st) {
      if (!((st.startsWith("\"")) || (st.endsWith("\"")))) return false
      try {
        return JSON.parse(st)
      } catch (_) {return false}
    }
    var currObj = null
    var lnCount = 0
    for (var ln of lns) {
      lnCount += 1
      if (ln.startsWith("&")) {
        res.push({"type": "import"})
        currObj = parseStr(ln.slice(1))
        if (currObj === false) {
          throw SyntaxError(`Invalid string at import statement at line ${lnCount}`)
        }
        res[res.length - 1].module = currObj
      }
    }
    return res
  }
  function obj2Env(obj) {
    console.log(obj)
    var env = new GrSEnviron()
    env.freezeEnv()
    return env
  }
  return obj2Env(scr2Obj())
}