Method _moreExp

src/maths/Parser.js:75–94

()

    }

    _moreExp() {
        let termNode;
        let exprNode;
        switch (this.token.type) {
            case '+':
                this.token = this.lexer.getNextToken(this.decimalCharacter);
                termNode = this._term();
                exprNode = this._moreExp();

                return ASTNode.createNode('op_+', exprNode, termNode);
            case '-':
                this.token = this.lexer.getNextToken(this.decimalCharacter);
                termNode = this._term();
                exprNode = this._moreExp();

                return ASTNode.createNode('op_-', exprNode, termNode);
        }

        return ASTNode.createLeaf(0);
    }

    _term() {
        const factorNode = this._factor();