Method unrulealt

src/org/antlr/codebuff/Trainer.java:1014–1017

Return {rule index, rule alt number}

(int ra)

	/** Return {rule index, rule alt number} */
	public static int[] unrulealt(int ra) {
		if ( ra==-1 ) return new int[] {-1, ATN.INVALID_ALT_NUMBER};
		return new int[] {(ra>>16)&0xFFFF,ra&0xFFFF};
	}

	public static int indentcat(int deltaFromLeftAncestor, int child) {
		return CAT_INDENT_FROM_ANCESTOR_CHILD| (deltaFromLeftAncestor<<8) | (child << 16);