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decuslib20-05
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decus/20-0141/daspan.for
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SUBROUTINE DASPAN(KONTRL,KONECT,IBUFFR,MAXBFR,LOWBFR,
1 MANY ,KIND ,INIGOT,INCGOT,LMTGOT,INIVAL,INCVAL,
2 LMTVAL,VALINI,VALINC,VALLMT)
C RENBR(/INTERPRETS FREE FORMAT RANGE SPECIFICATIONS)
C
C DONALD BARTH, HARVARD BUSINESS SCHOOL
C
C DASPAN EVALUATES RANGE SPECIFICATIONS TYPED BY THE
C USER AND READ BY THE CALLING PROGRAM WITH A MULTIPLE
C OF AN A1 FORMAT. SUCH RANGE SPECIFICATIONS CAN
C CONSIST OF A SINGLE NUMBER, OR OF 2 NUMBERS SEPARATED
C BY AN ASTERISK, OR OF EITHER 2 OR 3 NUMBERS SEPARATED
C BY SLASHES OR BY COLONS WHICH ARE TAKEN AS EQUIVALENT
C TO SLASHES. THE ASTERISK NOTATION IS MEANT TO
C INDICATE THAT THE VALUE TO THE RIGHT OF THE ASTERISK
C IS TO BE REPEATED THE NUMBER OF TIMES INDICATED BY
C THE NUMBER TO THE LEFT OF THE ASTERISK. NUMBERS
C SPECIFIED IN THE SLASH NOTATION CAN BE INTERPRETED AS
C THE LOWER AND UPPER BOUNDS OF A RANGE IF 2 NUMBERS
C ARE PRESENT, OR AS THE LOWER BOUND, THE INCREMENT,
C AND THE UPPER BOUND, IF 3 NUMBERS ARE INCLUDED.
C
C DASPAN REPORTS TO THE CALLING PROGRAM WHETHER THE
C NUMBERS ARE PRESENT IN THE SERIES SPECIFICATION, AS
C WELL AS THE VALUES OF THOSE NUMBERS WHICH ARE
C PRESENT. THE CALLING PROGRAM WILL HAVE TO ASSIGN
C DEFAULT VALUES FOR ANY NUMBERS WHICH ARE MISSING.
C THE RANGE SPECIFICATION /2/10 INDICATES THAT THE
C RANGE IS TO EXTEND FROM THE DEFAULT LOWER BOUND WITH
C AN INCRMENT OF 2 THROUGH THE UPPER BOUND OF 10.
C EITHER RANGE SPECIFICATION 1/10 OR 1//10 IS TAKEN TO
C MEAN THAT THE RANGE IS TO EXTEND FROM 1 THROUGH 10
C WITH THE DEFAULT INCREMENT. IF THE NUMBERS SPECIFY
C THE VALUES OF A SUBSCRIPT OF AN ARRAY, THEN A MISSING
C LOWER BOUND MIGHT BE TAKEN TO INDICATE THAT THE
C SUBSCRIPT BEING VARIED STARTS AT ITS MINIMUM POSSIBLE
C VALUE (USUALLY 1), WHILE A MISSING UPPER BOUND MIGHT
C INDICATE THAT THE SUBSCRIPT IS TO TERMINATE AT ITS
C MAXIMUM POSSIBLE VALUE.
C
C TWO VERSIONS OF THE ROUTINE ARE SUPPLIED. DASPAN CAN
C EVALUATE REAL NUMBERS AS WELL AS INTEGERS INCLUDING
C E, K AND M NOTATIONS FOR SPECIFYING EITHER OF THESE.
C IF THE CALLING PROGRAM DOES NOT OTHERWISE REFERENCE
C THE FREE FORMAT INPUT ROUTINE DAHEFT, IF THE
C EVALUATION OF REAL NUMBERS IS NOT NEEDED, AND IF
C INTEGERS CAN BE SPECIFIED WITHOUT RESORTING TO THE E,
C K AND M NOTATIONS, THEN THE ROUTINE DAISPN SHOULD BE
C USED INSTEAD OF DASPAN. NUMBERS EVALUATED BY DAISPN
C MUST CONSIST ONLY OF DIGITS FOLLOWING THE OPTIONAL
C SIGN. DAISPN TREATS THE CHARACTERS ., %, K AND M THE
C SAME AS ANY OTHER DELIMITER CHARACTER.
C
C FOLLOWING ARGUMENTS ARE USED FOR INPUT ONLY AND ARE
C RETURNED UNCHANGED.
C
C KONTRL = 1 OR GREATER, ITEM IN IBUFFR ARRAY IS
C FLOATING POINT. IF POSSIBLE, THE FLOATING
C POINT NUMBER WILL BE ACCUMULATED AS AN
C INTEGER, THEN BE CONVERTED TO FLOATING POINT
C AND SHIFTED IF NECESSARY. KONTRL IS THEN
C THE MAXIMUM NUMBER OF DIGITS IN THE INTEGER.
C THE VALUE IS OUTPUT AS THE ARGUMENT VALUE.
C IF THE ITEM HAS MORE THAN KONTRL DIGITS,
C THEN THE ENTIRE EVALUATION IS DONE IN
C FLOATING POINT. THE ADVANTAGE OF
C CALCULATING THE FLOATING POINT VALUES IN
C INTEGER AS LONG AS THE PRECISION OF THE
C COMPUTER IS NOT OVERFLOWED IS THAT THE
C CALCULATION OF THE PORTION OF THE NUMBER
C RIGHT OF THE DECIMAL POINT IS MORE EXACT.
C AS AN EXAMPLE, IF KONTRL IS GREATER THAN OR
C EQUAL TO 4, THEN THE NUMBER 33.33 CAN BE
C STORED AS THE INTEGER 3333, THEN BE
C CONVERTED TO FLOATING POINT VALUE 3333.0 AND
C DIVIDED BY 100.0 TO OBTAIN THE FINAL
C ANSWER. IF IT MAKES NO DIFFERENCE WHETHER
C THE NUMBER TYPED AS 33.33 HAS VALUE 33.33 OR
C 33.32999... THEN KONTRL CAN BE GIVEN THE
C VALUE 1.
C = 0, ITEM IN IBUFFR ARRAY IS INTEGER DECIMAL.
C THE NUMBER CAN BE TYPED WITH A DECIMAL POINT
C (FOR EXAMPLE 1.23K OR 1.23E3 EQUALS 1230),
C BUT IS STORED AS AN INTEGER IN DAHEFT, AND
C IS OUTPUT AS ARGUMENT IVALUE. ANY DECIMAL
C INTEGER WHICH THE COMPUTER CAN REPRESENT CAN
C BE EVALUATED. THIS INCLUDES, ON TWOS
C COMPLEMENT COMPUTERS, THE LARGEST NEGATIVE
C NUMBER THE ABSOLUTE VALUE OF WHICH CANNOT BE
C STORED. ON THE PDP10, A 36 BIT COMPUTER
C WITH TWOS COMPLEMENT NOTATION, THE RANGE OF
C DECIMAL INTEGERS IS -34359738368 THROUGH
C 34359738367 (OCTAL NOTATION OF BIT PATTERNS
C BEING 400000000000 THROUGH 377777777777).
C = -1, ITEM IN IBUFFR ARRAY IS OCTAL. THE
C NUMBER CAN BE TYPED WITH A DECIMAL POINT
C AND/OR WITH AN EXPONENT. HOWEVER, THE
C NUMBER FOLLOWING THE LETTER E OF THE
C EXPONENT IS EVALUATED IN DECIMAL. THE VALUE
C OF THE OCTAL NUMBER IS RETURNED AS THE
C ARGUMENT IVALUE. IT MUST BE NOTED THAT
C NUMBERS EVALUATED AS NEGATIVE OCTAL INTEGERS
C HAVE THE NEGATIVE OCTAL INTEGER AS THEIR
C VALUE, NOT AS THEIR BIT REPRESENTATION IN
C COMPUTER STORAGE. FOR EXAMPLE, ON A 36 BIT
C TWOS COMPLEMENT COMPUTER, THE OCTAL NUMBER
C -400000000000 (WHICH COULD ALSO BE TYPED AS
C -4E11 OR -4E+11 WHERE THE 11 AFTER THE E IS
C IN DECIMAL) IS REPRESENTED AS BIT PATTERN
C HAVING OCTAL NOTATION 400000000000 AND THE
C OCTAL NUMBER -377777777777 IS REPRESENTED BY
C THE BIT PATTERN 400000000001.
C KONECT = -1, ONCE A SLASH, AN ASTERISK OR A NUMBER IS
C FOUND IN THE IBUFFR ARRAY, THE SERIES
C SPECIFICATION WILL EXTEND TO THE NEXT SPACE
C OR TAB CHARACTER, OR TO ANY CHARACTER OTHER
C THAN A SLASH OR AN ASTERISK WHICH IMMEDITELY
C FOLLOWS A NUMBER IN THE SERIES
C SPECIFICATION. IF KONECT=-1, THEN THE TEXT
C 1/2+3/4 5/6+7/+8
C WOULD CONTAIN THE RANGE SPECIFICATIONS 1 TO
C 2, 3 TO 4, 5 TO 6, AND 7 TO 8.
C = 0, SPACES CAN APPEAR BETWEEN THE NUMBERS OF
C A SERIES IN ADDITION TO SLASHES OR ASTERISK.
C THE SLASHES OR THE ASTERISK ARE, HOWEVER,
C REQUIRED.
C = 1, SPACES AND/OR TAB CHARACTERS CAN APPEAR
C BETWEEN THE NUMBERS OF A SERIES IN ADDITION
C TO OR IN PLACE OF SLASHES OR ASTERISKS. IF
C KONECT=1, THEN THE TEXT
C 1 2 3,4/5 6,7 8/9,10 / 11 12
C IS EXACTLY EQUIVALENT, EXCEPT FOR THE VALUE
C OF KIND RETURNED FOR THE FIRST SERIES, TO
C THE TEXT
C 1/2/3,4/5/6,7/8/9,10/11/12
C THE FIRST SERIES (1 2 3) IN THE FIRST
C EXAMPLE WOULD RETURN KIND=6 INDICATING A
C SERIES IN WHICH NEITHER A SLASH NOR AN
C ASTERISK APPEARED, WHILE THE CORRESPONDING
C SERIES SPECIFICATION IN THE SECOND EXAMPLE
C WOULD RETURN KIND=7 INDICATING THAT AT LEAST
C 1 SLASH WAS ENCOUNTERED IN THE SERIES
C SPECIFICATION.
C IBUFFR = INPUT BUFFER ARRAY CONTAINING CHARACTERS
C TYPED BY USER, READ BY A MULTIPLE OF AN A1
C FORMAT, WHICH IS TO BE SEARCHED FOR SERIES
C SPECIFICATIONS. IBUFFR THEN CONTAINS ONE
C CHARACTER PER COMPUTER STORAGE LOCATION.
C MAXBFR = MAXIMUM SUBSCRIPT OF IBUFFR ARRAY TO BE
C SEARCHED
C
C FOLLOWING ARGUMENTS ARE USED AS BOTH INPUT AND OUTPUT
C
C LOWBFR = INPUT CONTAINING THE SUBSCRIPT WITHIN THE
C IBUFFR ARRAY OF THE FIRST (LEFTMOST)
C CHARACTER WHICH CAN BE SCANNED FOR A SERIES
C SPECIFICATION. LOWBFR WILL BE RETURNED
C POINTING TO THE NEXT CHARACTER BEYOND THE
C SERIES SPECIFICATION. IF KONECT IS .LE.0
C FORCING A SERIES SPECIFICATION TO CONTAIN
C EITHER A SLASH OR AN ASTERISK BETWEEN THE
C NUMBERS OF A SERIES, AND IF A SECOND NUMBER
C IMMEDIATELY FOLLOWS A FIRST WITHOUT A
C SEPARATING SLASH OR ASTERISK, THEN LOWBFR
C WILL BE RETURNED POINTING TO THE FIRST
C CHARACTER OF THE SECOND NUMBER. IF KONECT
C IS -1 AND IF EITHER A SPACE OR A TAB
C CHARACTER FOLLOWS A SERIES SPECIFICATION,
C THEN LOWBFR WILL BE RETURNED POINTING TO THE
C SPACE OR TAB CHARACTER. IF KONECT IS .GE.0,
C ALLOWING SPACES AND TAB CHARACTERS TO APPEAR
C WITHIN A SERIES SPECIFICATION, THEN LOWBFR
C WILL BE RETURNED POINTING TO THE FIRST
C CHARACTER TO THE RIGHT OF THE SERIES AND
C WHICH IS NOT ITSELF A SPACE, A TAB CHRACTER,
C A SLASH OR AN ASTERISK AND WHICH CANNOT
C APPEAR WITHIN A NUMBER. IF THERE IS NOTHING
C AT OR TO RIGHT OF LOWBFR, THEN LOWBFR WILL
C BE LEFT POINTING AT MAXBFR+1 AND KIND WILL
C BE RETURNED CONTAINING ONE. LOWBFR AND MANY
C MUST BE SET BY THE CALLING PROGRAM BEFORE
C ANYTHING IS PROCESSED IN THE CURRENT
C CONTENTS OF THE IBUFFR ARRAY, BUT THEN
C SHOULD NOT BE MODIFIED BY THE CALLING
C PROGRAM UNTIL THE ENTIRE CONTENTS OF THE
C IBUFFR ARRAY HAS BEEN PROCESSED.
C MANY = SHOULD BE INPUT CONTAINING ZERO EACH TIME
C THIS ROUTINE IS CALLED TO BEGIN PROCESSING
C OF A NEW LOGICAL SECTION OF TEXT, AS FOR
C EXAMPLE WHEN BEGINNING PROCESSING OF A LINE
C OF TEXT NOT TIED TO THE PREVIOUS LINE BY AN
C AMPERSAND AT THE END OF THE PREVIOUS LINE,
C OR WHEN PROCESSING THE TEXT TO THE RIGHT OF
C A SEMICOLON. MANY IS RETURNED SET TO ZERO
C WHENEVER AN END OF LINE (KIND=1) IS FOUND
C WHICH IS NOT TIED TO THE FOLLOWING LINE BY
C AN AMPERSAND, AND WHENEVER A SEMICOLON IS
C FOUND (KIND=2). MANY IS RETURNED INCREMENTED
C BY 1 EACH TIME A DESCRIPTION OF A SERIES
C SPECIFICATION IS RETURNED BY THIS ROUTINE,
C EACH TIME AN ERRONEOUS SERIES SPECIFICATION
C IS FOUND, OR EACH TIME AN INDICATION OF A
C MISSING SERIES SPECIFICATION IS FOUND. KIND
C IS RETURNED CONTAINING THE VALUE 3 AND MANY
C IS RETURNED CONTAINING THE NEGATIVE OF THE
C NUMBER OF ITEMS FOUND IF THE NEXT PRINTING
C CHARACTER FOLLOWING A COMMA IS AN AMPERSAND.
C MANY SHOULD NOT BE CHANGED BY THE CALLING
C PROGRAM IF AN AMPERSAND (KIND BEING
C RETURNED=3) IS FOUND INDICATING THAT THE
C SUBSEQUENT CALL TO THIS ROUTINE IS TO
C PROCESS TEXT WHICH IS TO BE TREATED AS
C THOUGH IT APPEARED IN PLACE OF THE AMPERSAND
C AND THE CHARACTERS TO ITS RIGHT. THE EFFECT
C IS NOT QUITE THE SAME AS IF THE USER HAD
C TYPED ALL OF THE TEXT ON A SINGLE LINE SINCE
C A SINGLE SERIES SPECIFICATION CANNOT BE
C SPLIT ACROSS THE LINE BOUNDARY.
C
C IF MANY IS INPUT CONTAINING ZERO, THEN AN
C INITIAL COMMA IN THE INPUT TEXT BUFFER IS
C TAKEN TO INDICATE AN INITIAL MISSING ITEM,
C AND MANY IS THEN RETURNED CONTAINING 1. IF
C MANY IS INPUT GREATER THAN ZERO, THEN AN
C INITIAL COMMA IS IGNORED IF FOLLOWED BY A
C SERIES SPECIFICATION. IF MANY IS INPUT
C GREATER THAN ZERO, THEN AN INITIAL COMMA
C FOLLOWED BY NO OTHER PRINTING CHARACTERS, BY
C A SEMICOLON, OR BY AN EXCLAMATION POINT
C INDICATES A MISSING ITEM. IF MANY IS INPUT
C GREATER THAN ZERO, THEN AN INITIAL COMMA
C FOLLOWED BY AN AMPERSAND WILL CAUSE THE
C REMAINING CHARACTERS IN THE BUFFER TO BE
C IGNORED, AND MANY WILL BE RETURNED
C CONTAINING THE NEGATIVE OF ITS INPUT VALUE.
C IF MANY IS INPUT NEGATIVE, THEN IT IS
C ASSUMED THAT THE CONTENTS OF THE CURRENT
C BUFFER CONTINUE A PREVIOUS LINE WHICH
C TERMINATED WITH A COMMA FOLLOWED BY AN
C AMPERSAND, AND MANY IS RETURNED GREATER THAN
C ZERO.
C
C FOLLOWING ARGUMENTS ARE USED ONLY FOR OUTPUT
C
C KIND = RETURNED DESCRIBING THE KIND OF ITEM LOCATED
C IN THE IBUFFR ARRAY.
C = 1, EITHER NO PRINTING CHARACTERS OR ELSE AN
C EXCLAMATION POINT AS THE FIRST PRINTING
C CHARACTER (MARKING THE REST OF THE LINE AS A
C COMMENT) WAS FOUND AT OR TO THE RIGHT OF
C LOWBFR. THE CALLING PROGRAM SHOULD READ A
C NEW LINE INTO IBUFFR. MANY, INIGOT, INCGOT
C AND LMTGOT ARE ALL RETURNED WITH VALUE ZERO.
C = 2, A SEMICOLON WAS FOUND AS THE FIRST
C PRINTING CHARACTER AT OR TO THE RIGHT OF
C LOWBFR. LOWBFR IS RETURNED POINTING TO THE
C NEXT CHARACTER BEYOND THE LOCATION OF THE
C SEMICOLON. IT IS ASSUMED THE CALLING
C PROGRAM WILL TREAT THE APPEARANCE OF THE
C SEMICOLON AS MARKING THE END OF A STATEMENT.
C MANY IS RETURNED WITH THE VALUE ZERO.
C = 3, AN AMPERSAND WAS FOUND AS THE FIRST
C PRINTING CHARACTER AT OR TO THE RIGHT OF
C LOWBFR. THE TEXT TO THE RIGHT OF THE
C AMPERSAND IS TAKEN AS A COMMENT SO LOWBFR IS
C RETURNED POINTING BEYOND THE RIGHT END OF
C THE BUFFER. IT IS ASSUMED THAT THE CALLING
C PROGRAM WILL READ IN THE CONTENTS OF A NEW
C BUFFER, THEN AGAIN REQUEST A NEW SERIES
C EVALUATION FROM THIS ROUTINE. THE VALUE OF
C MANY MUST NOT BE CHANGED BY CALLING PROGRAM
C PRIOR TO THIS FOLLOWING CALL. THE EFFECT IS
C NOT QUITE THE SAME AS IF THE USER HAD TYPED
C ALL OF THE TEXT ON A SINGLE LINE SINCE A
C SERIES SPECIFICATION CANNOT BE SPLIT ACROSS
C A LINE BOUNDARY.
C = 4, A NUMBER OR SERIES SPECIFICATION WAS NOT
C FOUND BUT INITIAL COMMA WAS FOUND INDICATING
C A MISSING SERIES SPECIFICATION. INIGOT,
C INCGOT AND LMTGOT ARE EACH RETURNED WITH THE
C VALUE ZERO SO KIND=4 CAN BE CONSIDERED
C EQUIVALENT TO KIND=5 IF SUCH IS APPROPRIATE
C TO THE APPLICATION FOR WHICH THIS ROUTINE IS
C BEING USED.
C = 5, A SINGLE NUMBER WITH NEITHER A SLASH NOR
C AN ASTERISK WAS FOUND IN THE INPUT BUFFER.
C BOTH INIGOT AND LMTGOT ARE RETURNED
C CONTAINING 1, AND THE VALUE OF THE NUMBER IS
C RETURNED EITHER IN BOTH INIVAL AND LMTVAL OR
C IN BOTH VALINI AND VALLMT, WHICHEVER IS
C APPROPRIATE. INCGOT IS RETURNED CONTAINING
C ZERO.
C = 6, EITHER 2 OR 3 NUMBERS WERE FOUND, BUT
C WITHOUT SLASHES OR ASTERISKS. THE VALUE OF
C THE LEFT NUMBER IS RETURNED IN EITHER
C INIVAL OR VALINI, OF THE RIGHT IN EITHER
C LMTVAL OR VALLMT, AND OF THE MIDDLE, IF
C PRESENT, IN EITHER INCVAL OR VALINC,
C WHICHEVER IS APPROPRIATE. INIGOT AND LMTGOT
C ARE EACH RETURNED CONTAINING 1. INCGOT IS
C RETURNED CONTAINING 1 ONLY IF 3 NUMBERS WERE
C FOUND. KONECT WOULD HAVE TO BE INPUT AS 1
C FOR KIND TO BE RETURNED AS 6.
C = 7, A SERIES SPECIFICATION CONTAINING ONE OR
C MORE SLASHES WAS FOUND. THE LOCATION OF THE
C SLASH OR SLASHES RELATIVE TO THE NUMBERS, IF
C ANY, IN THE SERIES SPECIFICATION IS
C INDICATED BY THE RETURNED VALUES OF INIGOT,
C INCGOT AND LMTGOT.
C = 8, A SERIES SPECIFICATION CONTAINING A
C SINGLE ASTERISK WAS FOUND. INCGOT IS
C RETURNED CONTAINING ZERO. THE LOCATION OF
C THE ASTERISK RELATIVE TO THE NUMBERS, IF
C ANY, IN THE SERIES SPECIFICATION IS
C INDICATED BY THE RETURNED VALUES OF INIGOT
C AND LMTGOT.
C = 9, A SERIES SPECIFICATION WAS FOUND WHICH
C INCLUDED TOO MANY NUMBERS, TOO MANY SLASHES
C OR TOO MANY ASTERISKS. INIGOT, INCGOT AND
C LMTGOT ARE EACH RETURNED CONTAINING ZERO.
C = 10, FIRST PRINTING CHARACTER IN OR TO RIGHT
C OF LOWBFR WAS NOT A CHARACTER WHICH COULD
C APPEAR IN A NUMBER OR NUMBER RANGE, AND WAS
C NOT A COMMA, SEMICOLON OR EXCLAMATION POINT.
C LOWBFR IS RETURNED POINTING TO THE NEXT
C CHARACTER BEYOND THIS CHARACTER.
C INIGOT = 0, RETURNED IF THE CONTENTS OF THE BUFFER DO
C NOT SPECIFY THE START OF THE RANGE. INIVAL
C OR VALINI, WHICHEVER IS APPROPRIATE, IS
C RETURNED UNDEFINED, BUT PROBABLY CHANGED.
C = 1, RETURNED IF THE CONTENTS OF THE BUFFER
C SPECIFY THE START OF THE RANGE. INIVAL OR
C VALINI, WHICHEVER IS APPROPRIATE, IS
C RETURNED CONTAINING THIS STARTING NUMBER.
C INCGOT = 0, RETURNED IF THE CONTENTS OF THE BUFFER DO
C NOT SPECIFY AN INCREMENT BY WHICH THE
C STARTING VALUE IS TO BE VARIED UNTIL IT
C REACHES THE ENDING VALUE. INCVAL OR VALINC,
C WHICHEVER IS APPROPRIATE, IS RETURNED
C UNDEFINED, BUT PROBABLY CHANGED.
C = 1, RETURNED IF THE CONTENTS OF THE BUFFER
C SPECIFY AN INCREMENT BY WHICH THE STARTING
C VALUE IS TO BE VARIED UNTIL IT REACHES THE
C ENDING VALUE. INCVAL OR VALINC, WHICHEVER
C IS APPROPRIATE, IS RETURNED CONTAINING THIS
C INCREMENT.
C LMTGOT = 0, RETURNED IF THE CONTENTS OF THE BUFFER DO
C NOT SPECIFY A NUMBER AT WHICH THE RANGE IS
C TO END. LMTVAL OR VALLMT, WHICHEVER IS
C APPROPRIATE, IS RETURNED UNDEFINED, BUT
C PROBABLY CHANGED.
C = 1, RETURNED IF THE CONTENTS OF THE BUFFER
C SPECIFY A NUMBER AT WHICH THE RANGE IS TO
C END. LMTVAL OR VALLMT, WHICHEVER IS
C APPROPRIATE, IS RETURNED CONTAINING THIS
C ENDING VALUE.
C INIVAL = RETURNED CONTAINING THE START OF THE RANGE
C IF THIS IS SPECIFIED AND IF THIS IS
C EVALUATED AS AN INTEGER (KONTRL INPUT .LE.0
C AND INIGOT RETURNED = 1)
C INCVAL = RETURNED CONTAINING THE INCREMENT IF THIS IS
C SPECIFIED AND IF THIS IS EVALUATED AS AN
C INTEGER (KONTRL INPUT .LE.0 AND INCGOT
C RETURNED = 1)
C LMTVAL = RETURNED CONTAINING THE END OF THE RANGE IF
C THIS IS SPECIFIED AND IF THIS IS EVALUATED
C AS AN INTEGER (KONTRL INPUT .LE.0 AND LMTGOT
C RETURNED = 1)
C VALINI = RETURNED CONTAINING THE START OF THE RANGE
C IF THIS IS SPECIFIED AND IF THIS IS
C EVALUATED AS A FLOATING POINT NUMBER (KONTRL
C INPUT .GT.0 AND INIGOT RETURNED = 1)
C VALINC = RETURNED CONTAINING THE INCREMENT IF THIS IS
C SPECIFIED AND IF THIS IS EVALUATED AS A
C FLOATING POINT NUMBER (KONTRL INPUT .GT.0
C AND INCGOT RETURNED = 1)
C VALLMT = RETURNED CONTAINING THE END OF THE RANGE IF
C THIS IS SPECIFIED AND IF THIS IS EVALUATED
C AS A FLOATING POINT NUMBER (KONTRL INPUT
C .GT.0 AND LMTGOT RETURNED = 1)
C
C EVALUATION OF RANGE SPECIFICATIONS LMTVAL
C SHOWN BELOW WOULD PRODUCE ARGUMENT INCVAL !
C VALUES TO THEIR RIGHT. "U" INDICATES INIVAL ! !
C THAT THE ARGUMENT IS UNDEFINED. LMTGOT ! ! !
C INCGOT ! ! ! !
C INIGOT ! ! ! ! !
C EMPTY OR / OR // OR * 0 0 0 U U U
C /// OR 5///9 OR 5 2 2 9 0 0 0 U U U
C /9 OR //9 OR *9 0 0 1 U U 9
C /2/ 0 1 0 U 2 U
C /2/9 OR /2 9 0 1 1 U 2 9
C 5/ OR 5// OR 5* 1 0 0 5 U U
C 5 1 0 1 5 U 5
C 5/9 OR 5//9 OR 5 9 OR 5*9 1 0 1 5 U 9
C 5/2/ OR 5 2/ 1 1 0 5 2 U
C 5/2/9 OR 5 2/9 OR 5/2 9 OR 5 2 9 1 1 1 5 2 9
C
DIMENSION IBUFFR(MAXBFR),IDIGIT(13)
DATA IDIGIT/
11H+,1H-,1H.,1H0,1H1,1H2,1H3,1H4,1H5,1H6,1H7,1H8,1H9/
DATA ISLASH,ICOLON,ISTAR,KOMENT,IEND,IAND,KOMMA,
1ISPACE,ITAB/1H/,1H:,1H*,1H!,1H;,1H&,1H,,1H ,1H /
IRADIX=13
IF(KONTRL.LT.0)IRADIX=11
ISTATE=0
KOUNT=0
INIGOT=1
KNTSEP=0
LMTGOT=1
KIND=1
ITEST=2
IF(MANY.GE.0)GO TO 1
KIND=4
MANY=-MANY
1 IF(KONTRL.GT.0)GO TO 2
INCVAL=0
LMTVAL=0
GO TO 4
2 VALINC=0.
VALLMT=0.
GO TO 4
C
C TEST IF NEXT CHARACTER CAN BE IN SERIES SPECIFICATION
3 LOWBFR=LOWBFR+1
4 IF(LOWBFR.GT.MAXBFR)GO TO 22
LETTER=IBUFFR(LOWBFR)
IF(LETTER.EQ.ISPACE)GO TO 13
IF(LETTER.EQ.ITAB)GO TO 13
IF(LETTER.EQ.ISLASH)GO TO 11
IF(LETTER.EQ.ICOLON)GO TO 11
IF(LETTER.EQ.ISTAR)GO TO 10
IF(LETTER.EQ.KOMENT)GO TO 20
IF(LETTER.EQ.IEND)GO TO 14
IF(LETTER.EQ.KOMMA)GO TO 9
IF(LETTER.EQ.IAND)GO TO 15
IF(KONECT.GT.0)GO TO 5
IF(ISTATE.GT.0)GO TO 22
5 IF(KONTRL.LT.-1)GO TO 7
DO 6 I=1,IRADIX
IF(LETTER.EQ.IDIGIT(I))GO TO 17
6 CONTINUE
7 IF(KIND.EQ.4)GO TO 8
IF(KIND.NE.1)GO TO 22
8 LOWBFR=LOWBFR+1
KIND=10
GO TO 22
C
C TEST IF DELIMITER CHARACTER CAN PRECEDE A SERIES
9 IF(KIND.NE.1)GO TO 22
KIND=4
IF(MANY.EQ.0)GO TO 23
GO TO 3
C
C ASTERISK FOUND
10 IF(KIND.EQ.7)ITEST=0
IF(ITEST.GT.0)ITEST=1
KIND=8
GO TO 12
C
C SLASH FOUND
11 IF(KIND.EQ.8)ITEST=0
KIND=7
12 IF(KOUNT.EQ.0)INIGOT=0
LMTGOT=0
KNTSEP=KNTSEP+1
ISTATE=-1
GO TO 3
C
C SPACE FOUND
13 IF(ISTATE.EQ.0)GO TO 3
IF(KONECT.GE.0)GO TO 3
GO TO 22
C
C SEMICOLON FOUND
14 IF(KIND.NE.1)GO TO 22
LOWBFR=LOWBFR+1
KIND=2
GO TO 22
C
C AMPERSAND FOUND
15 IF(KIND.EQ.1)GO TO 16
IF(KIND.NE.4)GO TO 22
MANY=-MANY
16 KIND=3
GO TO 21
C
C EVALUATE NUMBER AND PLACE INTO PUSH-DOWN STACK
17 IF(KIND.LE.5)KIND=KOUNT+5
KOUNT=KOUNT+1
IF(ISTATE.LT.0)KNTSEP=KNTSEP-1
ISTATE=1
LMTGOT=1
IF(KONTRL.GT.0)GO TO 18
INIVAL=INCVAL
INCVAL=LMTVAL
GO TO 19
18 VALINI=VALINC
VALINC=VALLMT
C IDUMMY PRESERVES VARIABLE LOCAL TO THIS ROUTINE
19 CALL DAHEFT(KONTRL,1,0,IBUFFR,MAXBFR,
1LOWBFR,IDUMMY,ISHIFT,JSHIFT,KSHIFT,LSHIFT,LMTVAL,
2VALLMT)
GO TO 4
C
C TEST IF TOO MANY ITEMS WERE FOUND IN SPECIFICATION
20 IF(KIND.NE.1)GO TO 22
21 LOWBFR=MAXBFR+1
22 IF((KOUNT+KNTSEP-INIGOT).LE.ITEST)GO TO 23
KIND=9
GO TO 24
C
C CONVERT PUSH-DOWN STACK INTO RANGE DESCRIPTION
23 IF(KOUNT.GE.3)GO TO 30
IF(KOUNT.EQ.2)GO TO 25
IF(KOUNT.EQ.1)GO TO 27
24 INIGOT=0
LMTGOT=0
GO TO 33
25 IF(INIGOT.EQ.0)GO TO 30
IF(KONTRL.GT.0)GO TO 26
INIVAL=INCVAL
GO TO 28
26 VALINI=VALINC
GO TO 28
27 IF(INIGOT.NE.0)GO TO 31
28 IF(LMTGOT.NE.0)GO TO 33
IF(KONTRL.GT.0)GO TO 29
INCVAL=LMTVAL
GO TO 30
29 VALINC=VALLMT
30 INCGOT=1
GO TO 34
31 IF(KONTRL.GT.0)GO TO 32
INIVAL=LMTVAL
GO TO 33
32 VALINI=VALLMT
33 INCGOT=0
C
C EVERYTHING IS IN ITS PLACE, RETURN TO CALLING ROUTINE
34 IF(KIND.GT.3)MANY=MANY+1
IF(KIND.LT.3)MANY=0
35 RETURN
C
C KNTSEP = NUMBER OF SLASHES AND ASTERISKS NOT FOLLOWED
C BY A NUMBER.
C ISTATE = 1, WITHIN NUMBER
C = 0, SPACE
C = -1, SLASH FOUND
C ITEST = MAXIMUM NUMBER OF SLASHES OR ASTERISKS
C ALLOWED IN A SINGLE SERIES SPECIFICATION.
C JSIGN = -1, MINUS SIGN AT START OF NUMBER
C = 0, NO SIGN AT START OF NUMBER
C = 1, PLUS SIGN AT START OF NUMBER
C KOUNT = NUMBER OF NUMBERS ALREADY FOUND
C
C770127366001:!;&
END