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*DECK CHAB
      SUBROUTINE CHAB(NENTRY,HENTRY,IENTRY,JENTRY,KENTRY)
*
*-----------------------------------------------------------------------
*
*Purpose:
*  Modify data contained in the microlib and renormalize the fission
*  and scattering information.
*
*Copyright:
* Copyright (C) 2007 Ecole Polytechnique de Montreal
*
*Author(s): A. Hebert
*
*Parameters: input/output
* NENTRY  number of LCM objects or files used by the operator.
* HENTRY  name of each LCM object or file:
*         HENTRY(1): create or modification type(L_MICROLIB);
*         HENTRY(2): optional read-only type(L_MICROLIB or L_DRAGLIB).
* IENTRY  type of each LCM object or file:
*         =1 LCM memory object; =2 XSM file; =3 sequential binary file;
*         =4 sequential ascii file.
* JENTRY  access of each LCM object or file:
*         =0 the LCM object or file is created;
*         =1 the LCM object or file is open for modifications;
*         =2 the LCM object or file is open in read-only mode.
* KENTRY  LCM object address or file unit number.
*
*-----------------------------------------------------------------------
*
      USE GANLIB
*----
*  SUBROUTINE ARGUMENTS
*----
      INTEGER      NENTRY,IENTRY(NENTRY),JENTRY(NENTRY)
      TYPE(C_PTR)  KENTRY(NENTRY)
      CHARACTER    HENTRY(NENTRY)*12
*----
*  LOCAL VARIABLES
*----
      PARAMETER (NSTATE=40,IOUT=6)
      TYPE(C_PTR) IPLIB,KPLIB
      CHARACTER TEXT4*4,TYPSEC*8,HISOT*12,HSIGN*12,NAM1*12,CD*4,HSMG*131
      DOUBLE PRECISION DFLOTT
      INTEGER ISTATE(NSTATE),IMOD
*----
*  ALLOCATABLE ARRAYS
*----
      INTEGER, ALLOCATABLE, DIMENSION(:) :: NFS
      REAL, ALLOCATABLE, DIMENSION(:) :: VAL
      CHARACTER(LEN=12), ALLOCATABLE, DIMENSION(:) :: HNAMIS
      TYPE(C_PTR), ALLOCATABLE, DIMENSION(:) :: IPISO
*----
*  PARAMETER VALIDATION
*----
      IF(NENTRY.LT.1) CALL XABORT('CHAB: MIN OF 1 OBJECT EXPECTED.')
      IF(NENTRY.GT.2) CALL XABORT('CHAB: MAX OF 2 OBJECTS EXPECTED.')
      IPLIB=KENTRY(1)
      IF(NENTRY.EQ.1) THEN
         IF(JENTRY(1).NE.1) CALL XABORT('CHAB: OBJECT IN MODIFICATION '
     1   //'MODE EXPECTED NAME=.'//HENTRY(1))
         CALL LCMGTC(IPLIB,'SIGNATURE',12,HSIGN)
         IF(HSIGN.EQ.'L_LIBRARY') THEN
            IRHS=1
         ELSE IF(HSIGN.EQ.'L_DRAGLIB') THEN
            CALL XABORT('CHAB: WE DO NOT ALLOW THE IN-PLACE MODIFICATI'
     1      //'ON OF A DRAGLIB. USE A DIFFERENT LHS.')
         ELSE
            CALL XABORT('CHAB: MICROLIB OBJECT EXPECTED AT RHS.')
         ENDIF
      ELSE IF(NENTRY.EQ.2) THEN
         IF(JENTRY(1).NE.0) CALL XABORT('CHAB: OBJECT IN CREATE MODE E'
     1   //'XPECTED.')
         IF((IENTRY(2).NE.1).AND.(IENTRY(2).NE.2)) CALL XABORT('CHAB: '
     1   //'LCM OBJECT EXPECTED AT RHS.')
         IF(JENTRY(2).NE.2) CALL XABORT('CHAB: LCM OBJECT IN READ-ONLY'
     1   //'MODE EXPECTED AT RHS.')
         CALL LCMGTC(KENTRY(2),'SIGNATURE',12,HSIGN)
         IF(HSIGN.EQ.'L_LIBRARY') THEN
            IRHS=1
         ELSE IF(HSIGN.EQ.'L_DRAGLIB') THEN
            IRHS=2
         ELSE
            CALL XABORT('CHAB: MICROLIB OR DRAGLIB OBJECT EXPECTED AT '
     1      //'RHS.')
         ENDIF
         CALL LCMEQU(KENTRY(2),IPLIB)
      ENDIF
      IF(IRHS.EQ.1) THEN
         CALL LCMGET(IPLIB,'STATE-VECTOR',ISTATE)
         NBISO=ISTATE(2)
         NGRP=ISTATE(3)
         NLEG=ISTATE(4)
      ELSE IF(IRHS.EQ.2) THEN
         CALL LCMLEN(IPLIB,'ENERGY',NGRP,ITYLCM)
         NGRP=NGRP-1
         NLEG=100
      ENDIF
      ALLOCATE(VAL(NGRP))
*----
*  READ THE INPUT DATA
*----
      VAL(:NGRP)=0.0
      IMPX=1
   10 CALL REDGET(INDIC,NITMA,FLOTT,TEXT4,DFLOTT)
      IF(INDIC.NE.3) CALL XABORT('CHAB: CHARACTER DATA EXPECTED(1).')
      IF(TEXT4.EQ.'EDIT') THEN
*        READ THE PRINT INDEX.
         CALL REDGET(INDIC,IMPX,FLOTT,TEXT4,DFLOTT)
         IF(INDIC.NE.1) CALL XABORT('CHAB: INTEGER DATA EXPECTED(1).')
      ELSE IF(TEXT4.EQ.'MODI') THEN
*        MODIFY/ADD AN ENTRY (CROSS SECTION, SPECTRA, ETC).
         CALL REDGET(INDIC,NITMA,FLOTT,TYPSEC,DFLOTT)
         IF(INDIC.NE.3) CALL XABORT('CHAB: CHARACTER DATA EXPECTED(2).')
         CALL REDGET(INDIC,IGM,FLOTT,TEXT4,DFLOTT)
         IF(INDIC.NE.1) CALL XABORT('CHAB: INTEGER DATA EXPECTED(2).')
         IF((IGM.LT.1).OR.(IGM.GT.NGRP)) CALL XABORT('CHAB: WRONG IGM.')
         CALL REDGET(INDIC,NITMA,FLOTT,TEXT4,DFLOTT)
         IF(INDIC.NE.3) CALL XABORT('CHAB: CHARACTER DATA EXPECTED(3).')
         IF(TEXT4.NE.'TO') CALL XABORT('CHAB: TO KEYWORD EXPECTED.')
         CALL REDGET(INDIC,IGP,FLOTT,TEXT4,DFLOTT)
         IF(INDIC.NE.1) CALL XABORT('CHAB: INTEGER DATA EXPECTED(3).')
         IF((IGP.LT.1).OR.(IGP.GT.NGRP)) CALL XABORT('CHAB: WRONG IGP.')
         CALL REDGET(INDIC,NITMA,FLOTT,TEXT4,DFLOTT)
         IF(INDIC.NE.3) CALL XABORT('CHAB: CHARACTER DATA EXPECTED(4).')
         IF(TEXT4.EQ.'VALE') THEN
            DO 20 IGR=IGM,IGP
            CALL REDGET(INDIC,NITMA,VAL(IGR),TEXT4,DFLOTT)
            IF(INDIC.NE.2) CALL XABORT('CHAB: REAL DATA EXPECTED(1).')
   20       CONTINUE
            IMOD=1
         ELSE IF(TEXT4.EQ.'CONS') THEN
            CALL REDGET(INDIC,NITMA,VALUE,TEXT4,DFLOTT)
            IF(INDIC.NE.2) CALL XABORT('CHAB: REAL DATA EXPECTED(2).')
            IMOD=2
         ELSE IF(TEXT4.EQ.'PLUS') THEN
            CALL REDGET(INDIC,NITMA,VALUE,TEXT4,DFLOTT)
            IF(INDIC.NE.2) CALL XABORT('CHAB: REAL DATA EXPECTED(3).')
            IMOD=3
         ELSE IF(TEXT4.EQ.'MULT') THEN
            CALL REDGET(INDIC,NITMA,VALUE,TEXT4,DFLOTT)
            IF(INDIC.NE.2) CALL XABORT('CHAB: REAL DATA EXPECTED(4).')
            IMOD=4
         ELSE
            CALL XABORT('CHAB: VALE/CONS/PLUS/MULT KEYWORD EXPECTED.')
         ENDIF
         CALL REDGET(INDIC,NITMA,FLOTT,HISOT,DFLOTT)
         IF(INDIC.NE.3) CALL XABORT('CHAB: CHARACTER DATA EXPECTED(5).')
         IF((IRHS.EQ.1).AND.(HISOT(9:).EQ.' ')) THEN
*           MODIFY MANY INSTANCES OF AN ISOTOPE IN A MICROLIB
            ALLOCATE(HNAMIS(NBISO),IPISO(NBISO))
            CALL LCMGTC(IPLIB,'ISOTOPESUSED',12,NBISO,HNAMIS)
            CALL LIBIPS(IPLIB,NBISO,IPISO)
            DO 30 ISO=1,NBISO
              NAM1=HNAMIS(ISO)
              IF(NAM1(:8).EQ.HISOT) THEN
                KPLIB=IPISO(ISO) ! set ISO-th isotope
                IF(.NOT.C_ASSOCIATED(KPLIB)) THEN
                  WRITE(HSMG,'(15HCHAB: ISOTOPE '',A12,7H'' (ISO=,I8,
     1            34H IS NOT AVAILABLE IN THE MICROLIB.)') NAM1,ISO
                  CALL XABORT(HSMG)
                ENDIF
                CALL CHAB01(KPLIB,IMPX,IRHS,NGRP,NLEG,IMOD,TYPSEC,NAM1,
     1          VALUE,IGM,IGP,VAL)
              ENDIF
   30       CONTINUE
            DEALLOCATE(IPISO,HNAMIS)
         ELSE IF(IRHS.EQ.1) THEN
*           MODIFY A UNIQUE INSTANCE OF AN ISOTOPE IN A MICROLIB
            ALLOCATE(HNAMIS(NBISO),IPISO(NBISO))
            CALL LCMGTC(IPLIB,'ISOTOPESUSED',12,NBISO,HNAMIS)
            CALL LIBIPS(IPLIB,NBISO,IPISO)
            DO 35 ISO=1,NBISO
              IF(HNAMIS(ISO).EQ.HISOT) THEN
                KPLIB=IPISO(ISO) ! set ISO-th isotope
                IF(.NOT.C_ASSOCIATED(KPLIB)) THEN
                  WRITE(HSMG,'(15HCHAB: ISOTOPE '',A12,7H'' (ISO=,I8,
     1            34H IS NOT AVAILABLE IN THE MICROLIB.)') HISOT,ISO
                  CALL XABORT(HSMG)
                ENDIF
                CALL CHAB01(KPLIB,IMPX,IRHS,NGRP,NLEG,IMOD,TYPSEC,HISOT,
     1          VALUE,IGM,IGP,VAL)
              ENDIF
   35       CONTINUE
            DEALLOCATE(IPISO,HNAMIS)
         ELSE IF(IRHS.EQ.2) THEN
*           MODIFY AN ISOTOPE IN A DRAGLIB
            CALL LCMLEN(IPLIB,HISOT,ILONG,ITYLCM)
            IF(ILONG.EQ.0) CALL XABORT('CHAB: MISSING ISOTOPE '//
     1      HISOT//'.')
            ALLOCATE(NFS(NGRP))
            CALL LCMSIX(IPLIB,HISOT,1)
            CALL LCMLEN(IPLIB,'TEMPERATURE',NTMP,ITYLCM)
            CALL LCMLEN(IPLIB,'BIN-NFS',ILONG,ITYLCM)
            NBIN=0
            IF(ILONG.EQ.NGRP) THEN
               CALL LCMGET(IPLIB,'BIN-NFS',NFS)
               DO 40 IG=1,NGRP
               NBIN=NBIN+NFS(IG)
   40          CONTINUE
               IF(NBIN.EQ.0) CALL XABORT('CHAB: INVALID NBIN')
            ENDIF
            DO 60 ITMP=1,NTMP
            WRITE (CD,'(I4.4)') ITMP
            IF(IMPX.GT.0) WRITE(IOUT,'(/23H CHAB: PROCESS ISOTOPE ,A,
     1      22H AT TEMPERATURE SUBTMP,A4,1H.)') HISOT,CD
            CALL LCMSIX (IPLIB,'SUBTMP'//CD,1)
            CALL CHAB01(IPLIB,IMPX,IRHS,NGRP,NLEG,IMOD,TYPSEC,
     1      HISOT,VALUE,IGM,IGP,VAL)
            IF(NBIN.GT.0) THEN
               CALL CHAB03(IPLIB,IMPX,NGRP,NBIN,IMOD,TYPSEC,HISOT,
     1         VALUE,IGM,IGP,NFS,VAL)
            ENDIF
            IF(TYPSEC.NE.'CHI') THEN
              CALL LCMLEN(IPLIB,'DILUTION',NDIL,ITYLCM)
              DO 50 IDIL=1,NDIL
              WRITE (CD,'(I4.4)') IDIL
              IF(IMPX.GT.0) WRITE(IOUT,'(/23H CHAB: PROCESS ISOTOPE ,A,
     1        19H AT DILUTION SUBMAT,A4,1H.)') HISOT,CD
              CALL LCMSIX(IPLIB,'SUBMAT'//CD,1)
              IF(IMOD.LE.2) THEN
                CALL CHAB01(IPLIB,IMPX,IRHS,NGRP,NLEG,1,TYPSEC,HISOT,
     1          0.0,IGM,IGP,VAL)
              ELSE IF(IMOD.EQ.4) THEN
                CALL CHAB01(IPLIB,IMPX,IRHS,NGRP,NLEG,IMOD,TYPSEC,
     1          HISOT,VALUE,IGM,IGP,VAL)
              ENDIF
              CALL LCMSIX (IPLIB,' ',2)
   50         CONTINUE
            ENDIF
            CALL LCMSIX (IPLIB,' ',2)
   60       CONTINUE
            IF(NBIN.GT.0) DEALLOCATE(NFS)
            CALL LCMSIX(IPLIB,' ',2)
         ENDIF
      ELSE IF(TEXT4.EQ.';') THEN
         GO TO 70
      ELSE
         CALL XABORT('CHAB: '//TEXT4//' IS AN INVALID KEYWORD.')
      ENDIF
      GO TO 10
*----
*  RECOVER INFORMATION
*----
   70 DEALLOCATE(VAL)
      RETURN
      END