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*DECK XDRCAS
SUBROUTINE XDRCAS(DIR,TEXT)
*
*-----------------------------------------------------------------------
*
* CONVERT A LOWER-CASE CHARACTER VARIABLE TO UPPER CASE OR
* UPPER CASE CHARACTER VARIABLE TO LOWER-CASE
*
* INPUT/OUTPUT VARIABLE:
* DIR : DIRECTION OF CONVERSION
* ='LOWTOUP' FOR LOWER TO UPPER
* ='UPTOLOW' FOR UPPER TO LOWER
* TEXT : CHARACTER VARIABLE TO BE CONVERTED.
*
*-----------------------------------------------------------------------
*
CHARACTER DIR*(*),TEXT*(*)
C----
C LOCAL PARAMETERS
C----
PARAMETER (NCAR=26)
INTEGER LENTEX,ITEX,ICAR
CHARACTER LOWCAS(NCAR)*1,UPCAS(NCAR)*1
SAVE LOWCAS,UPCAS
DATA LOWCAS /'a','b','c','d','e','f','g','h','i','j','k','l','m',
> 'n','o','p','q','r','s','t','u','v','w','x','y','z'/
DATA UPCAS /'A','B','C','D','E','F','G','H','I','J','K','L','M',
> 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z'/
LENTEX=LEN(TEXT)
IF(DIR.EQ.'LOWTOUP') THEN
DO 100 ITEX=1,LENTEX
DO 110 ICAR=1,NCAR
IF(TEXT(ITEX:ITEX).EQ.LOWCAS(ICAR)) THEN
TEXT(ITEX:ITEX)=UPCAS(ICAR)
GO TO 115
ENDIF
110 CONTINUE
115 CONTINUE
100 CONTINUE
ELSE IF (DIR.EQ.'UPTOLOW') THEN
DO 200 ITEX=1,LENTEX
DO 210 ICAR=1,NCAR
IF(TEXT(ITEX:ITEX).EQ.UPCAS(ICAR)) THEN
TEXT(ITEX:ITEX)=LOWCAS(ICAR)
GO TO 215
ENDIF
210 CONTINUE
215 CONTINUE
200 CONTINUE
ENDIF
RETURN
END
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