src/context.js
function updateIndent() {
            var str = ''
            for (var idx = 0; idx < this.indentLevel; idx++) {
                str += this.indentUnit
            }
            this.currentIndent = str
        }
function updateIndent() {
            var str = ''
            for (var idx = 0; idx < this.indentLevel; idx++) {
                str += this.indentUnit
            }
            this.currentIndent = str
        }
updates current indentation spaces depending on current indentation level