ADAS Subroutine bbprs1

       SUBROUTINE BBPRS1(NDMET,STRING,WNO,CPL,NPT,IPLA,ZPLA)
C-----------------------------------------------------------------------
C
C  ****************** FORTRAN77 SUBROUTINE: BBPRS1 *********************
C
C  PURPOSE:  TO ANALYSE THE TAIL CHARACTER STRING OF A LEVEL DATA LINE
C            OF A SPECIFIC ION FILE INTO WAVE-NUMBER AND SETS OF
C            (PARENT IDENTIFIER, EFFECTIVE ZETA FOR THE PARENT) PAIRS.
C
C  CALLING PROGRAM: ADAS208
C
C  NOTES: DETECT  -  LEVEL WAVE NUMBER WHICH PRECEEDS FIRST '{'
C                 -  SETS OF   PARENT INDEX CONTAINED IN '{.}'
C                              FOLLOWED BY EFFECTIVE ZETA
C         NB. 'X' AS FIRST PARENT ASSIGNMENT MEANS EXCLUDE IONISATION
C             FROM THIS LEVEL.
C             NO PARENT ASSIGNMENT MEANS TAKE LOWEST PARENT WITH
C             ZETA =1.
C             LOWEST PARENT BUT NO ZETA MEANS TAKE ZETA =1.
C             IF THERE IS MORE THAN ONE PARENT THEN ZETA'S MUST BE IN.
C
C
C  SUBROUTINE:
C
C  INPUT : (I*4)  NDMET    =  MAXIMUM NUMBER OF PARENTS
C  INPUT : (C*(*))STRING   =  STRING TO BE PARSED
C
C  OUTPUT: (R*8)  WNO      =  EXCITATION WAVE NUMBER OF LEVEL RELATIVE
C                             TO LOWEST PARENT
C  OUTPUT: (C*1)  CPL      =  LEAD PARENT FOR IONISATION  OR 'X'
C  OUTPUT: (I*4)  NPT      =  NUMBER OF BINDING WAVE NUMBERS DETECTED
C  OUTPUT: (I*4)  IPLA()   =  PARENT INDICES.
C  OUTPUT: (R*8)  ZPLA()   =  EFFECTIVE ZETA FOR PARENT IPLA()
C
C          (L*4)  LSET     =  .TRUE.  -  WAVE NUMBER PART SET
C                             .FALSE. -  WAVE NUMBER PART NOT SET
C          (L*4)  LWNO     =  .TRUE.  -  IN THE WAVE NUMBER PART
C                             .FALSE. -  NOT IN THE WAVE NUMBER PART
C          (L*4)  LPRNT    =  .TRUE.  -  IN A PARENT SPECIFIER
C                             .FALSE. -  NOT IN A PARENT SPECIFIER
C          (L*4)  LZETA    =  .TRUE.  -  IN A ZETA SPECIFIER
C                             .FALSE. -  NOT IN A ZETA SPECIFIER
C          (I*4)  IC       =  GENERAL USE
C          (I*4)  IABT     =  FAILURE NUMBER FROM R8FCTN
C          (I*4)  NCHAR    =  NUMBER OF CHARACTERS IN SUBSTRING
C          (C*15) SSTRNG   =  ISOLATED SUBSTRING
C
C ROUTINES: NONE
C
C AUTHOR:  HP SUMMERS
C          K1/1/57
C          JET EXT. 4941
C
C DATE:    22/06/92
C
C UPDATE:  24/06/96  HP SUMMERS - CHANGED SOUBRTOUNE NAME FROM B8PRS1 TO
C                                 BBPRS1
C
C UNIX-IDL PORT:
C
C AUTHOR:  WILLIAM OSBORN (TESSELLA SUPPORT SERVICES PLC)
C
C DATE:    4TH JULY 1996
C
C VERSION: 1.1                          DATE: 04-07-96
C MODIFIED: WILLIAM OSBORN
C               - FIRST VERSION.
C
C VERSION: 1.2				    DATE: 17-03-03
C MODIFIED: RICHARD MARTIN
C		INITIALISED LWNO AS .FALSE. 
C
C-----------------------------------------------------------------------
      CHARACTER           CPL
      CHARACTER*(*)       STRING
      INTEGER             IPLA(NDMET), NDMET,       NPT
      REAL*8              WNO,         ZPLA(NDMET)