DiceNotation.g4

/**
 * Copyright 2014-2017 the original author or authors
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

/** 
 * Dice notation grammar.
 * 
 * This is the notation which RPGs and other tabletop games use to represent operations with dice.
 */
grammar DiceNotation;

options { tokenVocab=DiceNotationLexer; }

/**
 * Rules.
 */
 
parse
:
	function
;

function
:
	dice
	| binaryOp
	| DIGIT
;

binaryOp
:
	dice OPERATOR function
	| DIGIT OPERATOR function
;

dice
:
	DIGIT DSEPARATOR DIGIT
;