Basic Language Syntax

This table lists the parse objects used in the Equation Editor:

Parse Object	Elaboration	Code Gen	Look Ahead (Skip reduction if next token is . . .)
<PROGRAM>	<STMT BLOCK> <ENDPROGRAM TOKEN>	ACCEPT
<STMT BLOCK>	<STMT BLOCK> <STMT>
<STMT BLOCK>	<STMT>
<STMT>	<IF STMT>
<STMT>	<LOOP STMT>
<STMT>	<ASSIGN STMT>
<STMT>	<CALL STMT>
<STMT>	<RETURN STMT>
<STMT>	<HALT STMT>
<STMT>	<MESSAGE STMT>
<STMT>	<EXIT LOOP STMT>
<STMT>	<SKIP STMT>
<STMT>	<FIND STMT>
<STMT>	<FIND NEXT STMT>
<STMT>	<TRACE STMT>
<STMT>	<DELETE STMT>
<STMT>	<INSERT STMT>
<STMT>	<RESTORE STMT>
<STMT>	<SAVE STMT>
<STMT>	<UPDATE STMT>
<IF STMT>	<IF START> <OR EXPR> <THEN PHRASE> <IF CLOSURE>	IFSTMT
<IF CLOSURE>	<ELSIF THEN LIST> <STMT BLOCK> <IF ENDING>
<IF CLOSURE>	<STMT BLOCK> <IF ENDING>
<IF ENDING>	<ELSE PHRASE> <STMT BLOCK> <ENDIF TOKEN>
<IF ENDING>	<ENDIF TOKEN>
<ELSIF THEN LIST>	<ELSIF THEN LIST> <ELSIF THEN PHRASE>
<ELSIF THEN LIST>	<ELSIF THEN PHRASE>
<ELSIF THEN PHRASE>	<STMT BLOCK> <ELSIF PHRASE> <OR EXPR> <THEN PHRASE>
<IF START>	<IF TOKEN>	IFSTART
<LOOP STMT>	<LOOP START> <STMT BLOCK> <ENDLOOP TOKEN>	LOOPEND
<LOOP START>	<LOOP TOKEN>	LOOPSTART
<ASSIGN STMT>	<ASSIGN TOKEN> <ASSIGNABLE DATATYPE> <OR EXPR> <ENDASSIGN TOKEN>	ASSIGN
<OR EXPR>	<OR EXPR> <OR TOKEN> <AND EXPR>	OR
<OR EXPR>	<AND EXPR>		<AND TOKEN>
<AND EXPR>	<AND EXPR> <AND TOKEN> <NOT EXPR>	AND
<AND EXPR>	<NOT EXPR>
<NOT EXPR>	<REL EXPR>		<EQUAL TOKEN> OR <LESS TOKEN> OR <LESS OR EQUAL TOKEN> OR <GREATER TOKEN> OR <GREATER OR EQUAL TOKEN> OR <UNEQUAL TOKEN>
<NOT EXPR>	<NOT TOKEN> <NOT EXPR>	NOT
<NOT EXPR>	<NOT TOKEN> <OR EXPR>	NOT
<REL EXPR>	<REL EXPR> <COMPARE LESS> <SUM EXPR>	LESS	<MINUS TOKEN> OR <PLUS TOKEN> OR <DIVIDE TOKEN> OR <MULTIPLY TOKEN>
<REL EXPR>	<REL EXPR> <COMPARE EQUAL> <SUM EXPR>	EQUAL	<MINUS TOKEN> OR <PLUS TOKEN> OR <DIVIDE TOKEN> OR <MULTIPLY TOKEN>
<REL EXPR>	<REL EXPR> <COMPARE LESS EQUAL> <SUM EXPR>	LESSEQUAL	<MINUS TOKEN> OR <PLUS TOKEN> OR <DIVIDE TOKEN> OR <MULTIPLY TOKEN>
<REL EXPR>	<REL EXPR> <COMPARE GREATER> <SUM EXPR>	GREATER	<MINUS TOKEN> OR <PLUS TOKEN> OR <DIVIDE TOKEN> OR <MULTIPLY TOKEN>
<REL EXPR>	<REL EXPR> <COMPARE GREATER EQUAL> <SUM EXPR>	GREATEREQUAL	<MINUS TOKEN> OR <PLUS TOKEN> OR <DIVIDE TOKEN> OR <MULTIPLY TOKEN>
<REL EXPR>	<REL EXPR> <COMPARE UNEQUAL> <SUM EXPR>	UNEQUAL	<MINUS TOKEN> OR <PLUS TOKEN> OR <DIVIDE TOKEN> OR <MULTIPLY TOKEN>
<REL EXPR>	<SUM EXPR>		<MINUS TOKEN> OR <PLUS TOKEN>
<SUM EXPR>	<SUM EXPR> <PLUS TOKEN> <PRODUCT EXPR>	ADD	<DIVIDE TOKEN> OR <MULTIPLY TOKEN>
<SUM EXPR>	<SUM EXPR> <MINUS TOKEN> <PRODUCT EXPR>	SUBTRACT	<DIVIDE TOKEN> OR <MULTIPLY TOKEN>
<SUM EXPR>	<PRODUCT EXPR>		<DIVIDE TOKEN> OR <MULTIPLY TOKEN>
<PRODUCT EXPR>	<PRODUCT EXPR> <MULTIPLY TOKEN> <MONADIC EXPR>	MULTIPLY
<PRODUCT EXPR>	<PRODUCT EXPR> <DIVIDE TOKEN> <MONADIC EXPR>	DIVIDE
<MONADIC EXPR>	<NEGATE TOKEN> <OR EXPR>	NEGATE
<MONADIC EXPR>	<NEGATE TOKEN> <MONADIC EXPR>	NEGATE
<PRODUCT EXPR>	<MONADIC EXPR>
<MONADIC EXPR>	<VALUE>
<MONADIC EXPR>	<LEFTPAREN TOKEN> <OR EXPR> <RIGHTPAREN TOKEN>
<INTO HEADER>	<INTO TOKEN> <STRING LITERAL TOKEN>	INTOSTRHDR
<VALUE>	<NUMERIC LITERAL TOKEN>	NUMBER
<VALUE>	<STRING LITERAL TOKEN>	STRING
- <VALUE>	<DATE LITERAL TOKEN>	DATE
<VALUE>	<DATA VALUE>
<VALUE>	<EXISTS STMT>
<DATA VALUE>	<TABLEFIELD>	GETTBLFLDVALUE
<DATA VALUE>	<GLOBALFIELD>	GETGLOBVALUE
<DATA VALUE>	<LOCALFIELD>	GETLOCVALUE
<FIND STMT>	<FIND TOKEN> <ASSIGN FIND DATATYPE> <TABLENAME> <KEY IDENTIFIER LIST> <ENDFIND TOKEN>	FIND
<FIND NEXT STMT>	<FIND NEXT TOKEN> <ASSIGN FIND DATATYPE> <TABLENAME> <ENDFIND TOKEN>	FINDNEXT
<CALL STMT>	<CALL HEADER>	CALL	<CALLPARMS TOKEN>
<CALL STMT>	<CALL HEADER> <CALL PARMS STMT>	CALLWITHPARMS
<CALL HEADER>	<CALL TOKEN> <EQUATIONTYPE TOKEN> <IDENTIFIER TOKEN>	CALLEQUATION
<CALL HEADER>	<CALL TOKEN> <EXTERNALTYPE TOKEN> <IDENTIFIER TOKEN>	CALLEXTERNAL
<CALL HEADER>	<CALL TOKEN> <APPENGINETYPE TOKEN> <IDENTIFIER TOKEN>	CALLAPPENG
<CALL HEADER>	<CALL TOKEN> <SQLTYPE TOKEN> <IDENTIFIER TOKEN>	CALLSQL
<CALL PARMS STMT>	<CALLPARMS TOKEN> <CALL PARM LIST> <ENDCALLPARMS TOKEN>
<CALL PARM LIST>	<CALL PARM LIST> <CALL PARM>
<CALL PARM LIST>	<CALL PARM>
<CALL PARM>	<CALL LOCALFIELD>
<CALL LOCALFIELD>	<CALL LOCALTYPE TOKEN> <IDENTIFIER TOKEN>	CALLLOCAL
<RETURN STMT>	<RETURN TOKEN>	RETURN
<HALT STMT>	<HALT TOKEN>	HALT
<MESSAGE STMT>	<MESSAGE TOKEN> <MESSAGE PARM LIST> <ENDMESSAGE TOKEN>	MSG
- <MESSAGE PARM LIST>	<MESSAGE PARM LIST> <MESSAGE PARM>
<MESSAGE PARM LIST>	<MESSAGE PARM>	MSGPARM
<MESSAGE PARM>	<MSG NUMERIC LITERAL TOKEN>	MSGNUMBER
<MESSAGE PARM>	<MSG STRING LITERAL TOKEN>	MSGSTRING
<MESSAGE PARM>	<MSG DATE LITERAL TOKEN>	MSGDATE
<MESSAGE PARM>	<MSG DATA VALUE>
<MSG DATA VALUE>	<MSG TABLEFIELD>
<MSG DATA VALUE>	<MSG GLOBALFIELD>
<MSG DATA VALUE>	<MSG LOCALFIELD>
<MSG TABLENAME>	<MSG TABLETYPE TOKEN> <IDENTIFIER TOKEN>	MSGTABLENAME
<INSERT START>	<INSERT HDR> <GLOBALTYPE TOKEN> <IDENTIFIER TOKEN>	INSGLOB
<MSG TABLEFIELD>	<MSG TABLENAME> <FIELDTYPE TOKEN> <IDENTIFIER TOKEN>	MSGTABLEFIELD
<MSG GLOBALFIELD>	<MSG GLOBALTYPE TOKEN> <IDENTIFIER TOKEN>	MSGGLOBAL
<MSG LOCALFIELD>	<MSG LOCALTYPE TOKEN> <IDENTIFIER TOKEN>	MSGLOCAL
<EXIT LOOP STMT>	<EXITLOOP TOKEN>	EXITLOOP
<EXISTS STMT>	<EXISTS TOKEN> <EXISTS GLOBALTYPE TOKEN> <IDENTIFIER TOKEN>	EXISTSGLOBAL
<EXISTS STMT>	<EXISTS TOKEN> <EXISTS LOCALTYPE TOKEN> <IDENTIFIER TOKEN>	EXISTSLOCAL
<EXISTS STMT>	<EXISTS TOKEN> <EXISTS TABLETYPE TOKEN> <IDENTIFIER TOKEN>	EXISTSTABLE
<ASSIGNABLE DATATYPE>	<ASGN GLOBALFIELD>
<ASSIGNABLE DATATYPE>	<ASGN LOCALFIELD>
<ASSIGN FIND DATATYPE>	<FIND GLOBALFIELD>
<ASSIGN FIND DATATYPE>	<FIND LOCALFIELD>
<INSERT START>	<INSERT HDR> <TABLETYPE TOKEN> <IDENTIFIER TOKEN>	INSTABLE
<DELETE START>	<DELETE HDR> <TABLETYPE TOKEN> <IDENTIFIER TOKEN>	DELTABLE
<UPDATE START>	<UPDATE HDR> <TABLETYPE TOKEN> <IDENTIFIER TOKEN>	UPDTABLE
<TABLENAME>	<TABLETYPE TOKEN> <IDENTIFIER TOKEN>	TABLENAME
<TABLEFIELD>	<TABLENAME> <FIELDTYPE TOKEN> <IDENTIFIER TOKEN>	TABLEFIELD
<GLOBALFIELD>	<GLOBALTYPE TOKEN> <IDENTIFIER TOKEN>	GLOBALFIELD
<ASGN GLOBALFIELD>	<ASGN GLOBALTYPE TOKEN> <IDENTIFIER TOKEN>	ASGNGLOBAL
<LOCALFIELD>	<LOCALTYPE TOKEN> <IDENTIFIER TOKEN>	LOCALFIELD
<FIND LOCALFIELD>	<FIND LOCALTYPE TOKEN> <IDENTIFIER TOKEN>	FINDLOCAL
<FIND GLOBALFIELD>	<FIND GLOBALTYPE TOKEN> <IDENTIFIER TOKEN>	FINDGLOBAL
<ASGN LOCALFIELD>	<ASGN LOCALTYPE TOKEN> <IDENTIFIER TOKEN>	ASGNLOCAL
<KEY IDENTIFIER LIST>	<KEY IDENTIFIER LIST> <KEY IDENTIFIER>
<KEY IDENTIFIER LIST>	<KEY IDENTIFIER>
<KEY IDENTIFIER>	<KEY LOCAL EQUAL TOKEN> <IDENTIFIER TOKEN>	KEYLOCEQ
<KEY IDENTIFIER>	<KEY LOCAL GREATER TOKEN> <IDENTIFIER TOKEN>	KEYLOCGT
<KEY IDENTIFIER>	<KEY LOCAL GREATER EQUAL TOKEN> <IDENTIFIER TOKEN>	KEYLOCGE
<KEY IDENTIFIER>	<KEY GLOBAL EQUAL TOKEN> <IDENTIFIER TOKEN>	KEYGLOBEQ
<KEY IDENTIFIER>	<KEY GLOBAL GREATER TOKEN> <IDENTIFIER TOKEN>	KEYGLOBGT
<KEY IDENTIFIER>	<KEY GLOBAL GREATER EQUAL TOKEN> <IDENTIFIER TOKEN>	KEYGLOBGE
<COMPARE LESS>	<LESS TOKEN>
<COMPARE LESS EQUAL>	<LESS OR EQUAL TOKEN>
<COMPARE EQUAL>	<EQUAL TOKEN>
<COMPARE GREATER>	<GREATER TOKEN>
<COMPARE GREATER EQUAL>	<GREATER OR EQUAL TOKEN>
<COMPARE UNEQUAL>	<UNEQUAL TOKEN>
<THEN PHRASE>	<THEN TOKEN>	THEN
<ELSE PHRASE>	<ELSE TOKEN>	ELSE
<ELSIF PHRASE>	<ELSIF TOKEN>	ELSIF
<SKIP STMT>	<SKIP TOKEN>	NONE
<TRACE STMT>	<TRACE TOKEN> <TRACE SQL TOKEN> <TRACE ON OR OFF>	TRACESQL
<TRACE STMT>	<TRACE TOKEN> <TRACE PCODE TOKEN> <TRACE ON OR OFF>	TRACEPCODE
<TRACE STMT>	<TRACE TOKEN> <TRACE SOURCE TOKEN> <TRACE ON OR OFF>	TRACESOURCE
<TRACE ON OR OFF>	<ON TOKEN>	TRACEON
<TRACE ON OR OFF>	<OFF TOKEN>	TRACEOFF
<DELETE STMT>	<DELETE START> <STMT BLOCK> <DELETE END>	DEL
<DELETE STMT>	<DELETE START> <DELETE END>	DEL
<DELETE STMT>	<DELETE START> <STMT BLOCK> <CHOOSE CLAUSE> <DELETE END>	DEL
<DELETE STMT>	<DELETE START> <CHOOSE CLAUSE> <DELETE END>	DEL
<DELETE HDR>	<DELETE TOKEN>	DELHDR
<DELETE END>	<WHERE TOKEN> <WHERE EXPR LIST> <ENDDELETE TOKEN>
<DELETE END>	<ENDDELETE TOKEN>
<INSERT STMT>	<INSERT START> <STMT BLOCK> <INTO LIST> <INSERT END>	INS
<INSERT STMT>	<INSERT START> <INTO LIST> <INSERT END>	INS
<INSERT STMT>	<INSERT START> <STMT BLOCK> <INTO LIST> <CHOOSE CLAUSE> <INSERT END>	INS
<INSERT STMT>	<INSERT START> <INTO LIST> <CHOOSE CLAUSE> <INSERT END>	INS
<INSERT HDR>	<INSERT TOKEN>	INSHDR
<INSERT END>	<WHERE TOKEN> <WHERE EXPR LIST> <ENDINSERT TOKEN>
<INSERT END>	<ENDINSERT TOKEN>
<INTO LIST>	<INTO LIST> <INTO CLAUSE>
<INTO LIST>	<INTO CLAUSE>
<RESTORE STMT>	<RESTORE TOKEN> <GLOBALSPACE ID> <GLOBALSPACE FIELD LIST> <ENDRESTORE TOKEN>	RESTORE
<RESTORE STMT>	<RESTORE TOKEN> <GLOBALSPACE ID> <ENDRESTORE TOKEN>	RESTORE
<SAVE STMT>	<SAVE TOKEN> <GLOBALSPACE ID> <GLOBALSPACE FIELD LIST> <ENDSAVE TOKEN>	SAVE
<SAVE STMT>	<SAVE TOKEN> <GLOBALSPACE ID> <ENDSAVE TOKEN>	SAVE
<UPDATE STMT>	<UPDATE START> <STMT BLOCK> <SETFIELD LIST> <UPDATE END>	UPD
<UPDATE STMT>	<UPDATE START> <SETFIELD LIST> <UPDATE END>	UPD
<UPDATE STMT>	<UPDATE START> <STMT BLOCK> <SETFIELD LIST> <CHOOSE CLAUSE> <UPDATE END>	UPD
<UPDATE STMT>	<UPDATE START> <SETFIELD LIST> <CHOOSE CLAUSE> <UPDATE END>	UPD
<UPDATE HDR>	<UPDATE TOKEN>	UPDHDR
<UPDATE END>	<WHERE TOKEN> <WHERE EXPR LIST> <ENDUPDATE TOKEN>
<UPDATE END>	<ENDUPDATE TOKEN>
<GLOBALSPACE FIELD LIST>	<GLOBALSPACE FIELD LIST> <GLOBALSPACE FIELD>	GBLSPCFIELD
<GLOBALSPACE FIELD LIST>	<GLOBALSPACE FIELD>	GBLSPCFIELD
<WHERE EXPR LIST>	<WHERE EXPR LIST> <WHERE EXPR TOKEN>	WHEREEXPR
<WHERE EXPR LIST>	<WHERE EXPR TOKEN>	WHEREEXPR
<CHOOSE CLAUSE>	<CHOOSE TOKEN> <EQUATIONTYPE TOKEN> <IDENTIFIER TOKEN>	CHOOSE
<INTO CLAUSE>	<INTO HEADER> <FROM CLAUSE>	INTO
<INTO HEADER>	<INTO TOKEN> <FIELDTYPE TOKEN> <IDENTIFIER TOKEN>	INTOFLDHDR
<FROM CLAUSE>	<FROM TOKEN> <OR EXPR>
<SETFIELD LIST>	<SETFIELD LIST> <SETFIELD CLAUSE>
<SETFIELD LIST>	<SETFIELD CLAUSE>
<SETFIELD CLAUSE>	<SETFIELD HDR> <OR EXPR>	SETFIELD
<SETFIELD HDR>	<SET TOKEN> <FIELDTYPE TOKEN> <IDENTIFIER TOKEN>	SETFLDHDR
<GLOBALSPACE FIELD>	<SPACE GLOBALTYPE TOKEN> <IDENTIFIER TOKEN>
<GLOBALSPACE ID>	<SPACENAME STRINGTYPE TOKEN> <IDENTIFIER TOKEN>	GBLSPACEID
*** TOKENS ***
<AND TOKEN>	AND
<APPENGINETYPE TOKEN>	APEN
<ASGN GLOBALTYPE TOKEN>	G but it is bracketed by ASSIGN/END ASSIGN
<ASGN LOCALTYPE TOKEN>	L but it is bracketed by ASSIGN/END ASSIGN
<ASSIGN TOKEN>	ASSIGN
<CALL TOKEN>	CALL
<CALL LOCALTYPE TOKEN>	L but it is bracketed by CALLPARMS/END CALLPARMS
<CALLPARMS TOKEN>	CALLPARMS
<CHOOSE TOKEN>	CHOOSE
<DATE LITERAL TOKEN>	D followed by a number
<DELETE TOKEN>	DELETE
<DIVIDE TOKEN>	/
<ELSE TOKEN>	ELSE	Update address of false jump. Push truejump address placeholder.
<ELSIF TOKEN>	ELSIF
<ENDASSIGN TOKEN>	END ASSIGN
<ENDCALLPARMS TOKEN>	END CALLPARMS
<ENDDELETE TOKEN>	END DELETE
<ENDFIND TOKEN>	END FIND
<ENDIF TOKEN>	END IF	Update address of false jump, true jump, or both.
<ENDINSERT TOKEN>	END INSERT
<ENDLOOP TOKEN>	END LOOP	Update addresses of exitloop jumps.
<ENDMESSAGE TOKEN>	END MESSAGE
<ENDPROGRAM TOKEN>	END PROGRAM
<ENDRESTORE TOKEN>	END RESTORE
<ENDSAVE TOKEN>	END SAVE
<ENDUPDATE TOKEN>	END UPDATE
<EQUAL TOKEN>	=
<EQUATIONTYPE TOKEN>	E
<EXISTS GLOBALTYPE TOKEN>	G but it is preceded by EXISTS
<EXISTS LOCALTYPE TOKEN>	L but it is preceded by EXISTS
<EXISTS TABLETYPE TOKEN>	T but it is preceded by EXISTS
<EXISTS TOKEN>	EXISTS
<EXITLOOP TOKEN>	EXIT LOOP	Push placeholder jump for exitloop.
<EXTERNALTYPE TOKEN>	X
<FIELDTYPE TOKEN>	F
<FIND GLOBALTYPE TOKEN>	G but it is bracketed by FIND/END FIND
<FIND LOCALTYPE TOKEN>	L but it is bracketed by FIND/END FIND
<FIND NEXT TOKEN>	FIND NEXT
<FIND TOKEN>	FIND
<FROM TOKEN>	FROM
<GLOBALTYPE TOKEN>	G
<GREATER OR EQUAL TOKEN>	>=
<GREATER TOKEN>	>
<HALT TOKEN>	HALT
<IDENTIFIER TOKEN>	NONE
<IF TOKEN>	IF
<INSERT TOKEN>	INSERT
<INTO TOKEN>	INTO
<KEY GLOBAL EQUAL TOKEN>	KGEQ
<KEY GLOBAL GREATER EQUAL TOKEN>	KGGE
<KEY GLOBAL GREATER TOKEN>	KGGT
<KEY LOCAL EQUAL TOKEN>	KLEQ
<KEY LOCAL GREATER EQUAL TOKEN>	KLGE
<KEY LOCAL GREATER TOKEN>	KLGT
<LEFTPAREN TOKEN>	(
<LESS OR EQUAL TOKEN>	<=
<LESS TOKEN>	<
<LOCALTYPE TOKEN>	L
<LOOP TOKEN>	LOOP
<MESSAGE TOKEN>	MESSAGE
<MINUS TOKEN>	- but prior token is a number, identifier, or left parenthesis
<MSG DATE LITERAL TOKEN>	D but it is bracketed by MESSAGE/END MESSAGE
<MSG GLOBALTYPE TOKEN>	G but it is bracketed by MESSAGE/END MESSAGE
<MSG LOCALTYPE TOKEN>	L but it is bracketed by MESSAGE/END MESSAGE
<MSG NUMERIC LITERAL TOKEN>	Bracketed by MESSAGE/END MESSAGE
<MSG STRING LITERAL TOKEN>	Bracketed by MESSAGE/END MESSAGE
<MSG TABLETYPE TOKEN>	T but it is bracketed by MESSAGE/END MESSAGE
<MULTIPLY TOKEN>	*
<NEGATE TOKEN>	- but prior token is not a number, identifier, or left parenthesis
<NOT TOKEN>	NOT
<NUMERIC LITERAL TOKEN>	N followed by a number
<OFF TOKEN>	OFF
<ON TOKEN>	ON
<OR TOKEN>	OR
<PLUS TOKEN>	+
<RESTORE TOKEN>	RESTORE
<RETURN TOKEN>	RETURN
<RIGHTPAREN TOKEN>	)
<SAVE TOKEN>	SAVE
<SET TOKEN>	SET
<SKIP TOKEN>	SKIP
<SPACE GLOBALTYPE TOKEN>	G but bracketed by SAVE/END SAVE or RESTORE/END RESTORE
<SPACENAME STRINGTYPE TOKEN>	S but bracketed by SAVE/END SAVE or RESTORE/END RESTORE
<SQLTYPE TOKEN>	SQL
<STRING LITERAL TOKEN>	S or V followed by a string
<TABLETYPE TOKEN>	T
<THEN TOKEN>	THEN	False jump to placeholder address.
<TRACE PCODE TOKEN>	PCODE
<TRACE SOURCE TOKEN>	SOURCE
<TRACE SQL TOKEN>	SQL but prior token is a trace token
<TRACE TOKEN>	TRACE
<UNEQUAL TOKEN>	<>
<UPDATE TOKEN>	UPDATE
<WHERE EXPR TOKEN>	Anything between a WHERE token and one of END INSERT, END DELETE, or END UPDATE.
<WHERE TOKEN>	WHERE