/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */

/*
  $Header: b2nod.h,v 1.4 85/08/22 16:42:43 timo Exp $
*/

/* Units */

typedef intlet typenode;

#define _Nodetype(len)   ((len) & 0377)
#define _Nbranches(len)  ((len) >> 8)
#define Nodetype(v)   _Nodetype((v)->len)
#define Nbranches(v)  _Nbranches((v)->len)
#define Branch(v, n)  ((Ats(v)+(n)))

#define Unit(n)	      (n>=HOW_TO && n<=REFINEMENT)
#define Command(n)    (n>=SUITE && n<=EXTENDED_COMMAND)
#define Expression(n) ((n>=TAG && n<=TAB_DIS)||(n>=TAGformal && n<=TAGzerprd))
#define Comparison(n) (n>=LESS_THAN && n<=UNEQUAL)

#define HOW_TO		 	0
#define YIELD			1
#define TEST			2
#define REFINEMENT		3

/* Commands */

#define SUITE			4
#define PUT			5
#define INSERT		 	6
#define REMOVE		 	7
#define CHOOSE		 	8
#define DRAW			9
#define SET_RANDOM		10
#define DELETE			11
#define CHECK			12
#define SHARE			13

#define WRITE			14
#define READ			15
#define READ_RAW		16

#define IF			17
#define WHILE			18
#define FOR			19

#define SELECT			20
#define TEST_SUITE		21
#define ELSE			22

#define QUIT			23
#define RETURN			24
#define REPORT			25
#define SUCCEED			26
#define FAIL			27

#define USER_COMMAND		28
#define EXTENDED_COMMAND	29

/* Expressions, targets, tests */

#define TAG			30
#define COMPOUND		31

/* Expressions, targets */

#define COLLATERAL		32
#define SELECTION		33
#define BEHEAD			34
#define CURTAIL			35

/* Expressions, tests */

#define UNPARSED		36

/* Expressions */

#define MONF			37
#define DYAF			38
#define NUMBER			39
#define TEXT_DIS		40
#define TEXT_LIT		41
#define TEXT_CONV		42
#define ELT_DIS			43
#define LIST_DIS		44
#define RANGE_DIS		45
#define TAB_DIS			46

/* Tests */

#define AND			47
#define OR			48
#define NOT			49
#define SOME_IN			50
#define EACH_IN			51
#define NO_IN			52
#define SOME_PARSING		53
#define EACH_PARSING		54
#define NO_PARSING		55
#define MONPRD			56
#define DYAPRD			57
#define LESS_THAN		58
#define AT_MOST			59
#define GREATER_THAN		60
#define AT_LEAST		61
#define EQUAL			62
#define UNEQUAL			63
#define Nonode			64

#define TAGformal		65
#define TAGlocal		66
#define TAGglobal		67
#define TAGmystery		68
#define TAGrefinement		69
#define TAGzerfun		70
#define TAGzerprd		71

#define ACTUAL			72
#define FORMAL			73

value node1();
value node2();
value node3();
value node4();
value node5();
value node6();
value node8();
value node9();
typenode nodetype();
/* Procedure display(); */
/* Procedure fix_nodes(); */

#define First_fieldnr	0

#define UNIT_NAME	First_fieldnr
#define HOW_FORMALS	First_fieldnr + 1	/* HOW'TO */
#define HOW_COMMENT	First_fieldnr + 2
#define HOW_SUITE	First_fieldnr + 3
#define HOW_REFINEMENT	First_fieldnr + 4
#define HOW_R_NAMES	First_fieldnr + 5
#define HOW_NLOCALS	First_fieldnr + 6
#define FPR_ADICITY	First_fieldnr + 1	/* YIELD, TEST */
#define FPR_FORMALS	First_fieldnr + 2
#define FPR_COMMENT	First_fieldnr + 3
#define FPR_SUITE	First_fieldnr + 4
#define FPR_REFINEMENT	First_fieldnr + 5
#define FPR_R_NAMES	First_fieldnr + 6
#define FPR_NLOCALS	First_fieldnr + 7

#define FML_KEYW	First_fieldnr		/* FORMALS HOW'TO */
#define FML_TAG		First_fieldnr + 1
#define FML_NEXT	First_fieldnr + 2

#define SUI_LINO	First_fieldnr		/* SUITE */
#define SUI_CMD		First_fieldnr + 1
#define SUI_COMMENT	First_fieldnr + 2
#define SUI_NEXT	First_fieldnr + 3
#define REF_NAME	First_fieldnr		/* REFINEMENT */
#define REF_COMMENT	First_fieldnr + 1
#define REF_SUITE	First_fieldnr + 2
#define REF_NEXT	First_fieldnr + 3
#define REF_START	First_fieldnr + 4

#define PUT_EXPR	First_fieldnr		/* PUT */
#define PUT_TARGET	First_fieldnr + 1
#define INS_EXPR	First_fieldnr		/* INSERT */
#define INS_TARGET	First_fieldnr + 1
#define RMV_EXPR	First_fieldnr		/* REMOVE */
#define RMV_TARGET	First_fieldnr + 1
#define CHS_TARGET	First_fieldnr		/* CHOOSE */
#define CHS_EXPR	First_fieldnr + 1
#define DRW_TARGET	First_fieldnr		/* DRAW */
#define SET_EXPR	First_fieldnr		/* SET'RANDOM */
#define DEL_TARGET	First_fieldnr		/* DELETE */
#define CHK_TEST	First_fieldnr		/* CHECK */
#define SHR_TARGET	First_fieldnr		/* SHARE */

#define WRT_L_LINES	First_fieldnr		/* WRITE */
#define WRT_EXPR	First_fieldnr + 1
#define WRT_R_LINES	First_fieldnr + 2
#define RD_TARGET	First_fieldnr		/* READ */
#define RD_EXPR		First_fieldnr + 1
#define RDW_TARGET	First_fieldnr		/* READ'RAW */

#define IF_TEST		First_fieldnr		/* IF */
#define IF_COMMENT	First_fieldnr + 1
#define IF_SUITE	First_fieldnr + 2
#define WHL_TEST	First_fieldnr		/* WHILE */
#define WHL_COMMENT	First_fieldnr + 1
#define WHL_SUITE	First_fieldnr + 2
#define FOR_TARGET	First_fieldnr		/* FOR */
#define FOR_EXPR	First_fieldnr + 1
#define FOR_COMMENT	First_fieldnr + 2
#define FOR_SUITE	First_fieldnr + 3

#define SLT_COMMENT	First_fieldnr		/* SELECT */
#define SLT_TSUITE	First_fieldnr + 1
#define TSUI_LINO	First_fieldnr		/* TEST SUITE */
#define TSUI_TEST	First_fieldnr + 1
#define TSUI_COMMENT	First_fieldnr + 2
#define TSUI_SUITE	First_fieldnr + 3
#define TSUI_NEXT	First_fieldnr + 4
#define ELSE_LINO	First_fieldnr		/* ELSE */
#define ELSE_COMMENT	First_fieldnr + 1
#define ELSE_SUITE	First_fieldnr + 2

#define RTN_EXPR	First_fieldnr		/* RETURN */
#define RPT_TEST	First_fieldnr		/* REPORT */

#define UCMD_NAME	First_fieldnr		/* USER COMMAND */
#define UCMD_ACTUALS	First_fieldnr + 1
#define UCMD_DEF	First_fieldnr + 2
#define ACT_KEYW	First_fieldnr		/* ACTUALS USER COMMAND */
#define ACT_EXPR	First_fieldnr + 1
#define ACT_NEXT	First_fieldnr + 2
#define ACT_START	First_fieldnr + 3

#define ECMD_NAME	First_fieldnr		/* EXTENDED COMMAND */
#define ECMD_ACTUALS	First_fieldnr + 1

#define COMP_FIELD	First_fieldnr		/* COMPOUND */
#define COLL_SEQ	First_fieldnr		/* COLLATERAL */
#define MON_NAME	First_fieldnr		/* MONADIC FUNCTION */
#define MON_RIGHT	First_fieldnr + 1
#define MON_FCT		First_fieldnr + 2
#define DYA_NAME	First_fieldnr + 1	/* DYADIC FUNCTION */
#define DYA_LEFT	First_fieldnr
#define DYA_RIGHT	First_fieldnr + 2
#define DYA_FCT		First_fieldnr + 3
#define TAG_NAME	First_fieldnr		/* TAG */
#define TAG_ID		First_fieldnr + 1
#define NUM_VALUE	First_fieldnr		/* NUMBER */
#define NUM_TEXT	First_fieldnr + 1
#define XDIS_QUOTE	First_fieldnr		/* TEXT DIS */
#define XDIS_NEXT	First_fieldnr + 1
#define XLIT_TEXT	First_fieldnr		/* TEXT LIT */
#define XLIT_NEXT	First_fieldnr + 1
#define XCON_EXPR	First_fieldnr		/* TEXT CONV */
#define XCON_NEXT	First_fieldnr + 1
#define LDIS_SEQ	First_fieldnr		/* LIST DIS */
#define RDIS_LWB	First_fieldnr		/* RANGE DIS */
#define RDIS_UPB	First_fieldnr + 1
#define TDIS_SEQ	First_fieldnr		/* TAB_DIS */
#define SEL_TABLE	First_fieldnr		/* SELECTION */
#define SEL_KEY		First_fieldnr + 1
#define TRIM_LEFT	First_fieldnr		/* BEHEAD, CURTAIL */
#define TRIM_RIGHT	First_fieldnr + 1
#define UNP_SEQ		First_fieldnr		/* UNPARSED */
#define UNP_TEXT	First_fieldnr + 1

#define AND_LEFT	First_fieldnr		/* AND */
#define AND_RIGHT	First_fieldnr + 1
#define OR_LEFT		First_fieldnr		/* OR */
#define OR_RIGHT	First_fieldnr + 1
#define NOT_RIGHT	First_fieldnr		/* NOT */
#define QUA_TARGET	First_fieldnr		/* QUANTIFICATION */
#define QUA_EXPR	First_fieldnr + 1
#define QUA_TEST	First_fieldnr + 2
#define REL_LEFT	First_fieldnr		/* ORDER TEST */
#define REL_RIGHT	First_fieldnr + 1