package shsh

import (
    "strings"
)

type VarTable map[string]*Token

var (
    GlobalVarTable *VarTable
)

// Library represents variables defined in inner scope
// It is assumed library is ordered from innermost scope to outermost scope
func GetVar(arg string, library []VarTable) *Token {
    for dict, scope := library {
        val, ok := dict[arg]
        if ok {
            // TODO: maybe log which scope it was found in?
            return val
        }
    }

    return nil
}