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+C--------------------------------------------------------------------------
+ subroutine ftgacl(iunit,colnum,xtype,xbcol,xunit,xform,
+ & xscal,xzero,xnull,xdisp,status)
+
+C Get information about an Ascii CoLumn
+C returns the parameters which define the column
+
+C iunit i Fortran i/o unit number
+C colnum i number of the column (first column = 1)
+C xtype c name of the column
+C xbcol i starting character in the row of the column
+C xunit c physical units of the column
+C xform c Fortran-77 format of the column
+C xscal d scaling factor for the column values
+C xzero d scaling zero point for the column values
+C xnull c value used to represent undefined values in the column
+C xdisp c display format for the column (if different from xform
+C status i returned error status
+
+ integer iunit,colnum,xbcol,status
+ double precision xscal,xzero
+ character*(*) xtype,xunit,xform,xnull,xdisp
+
+C COMMON BLOCK DEFINITIONS:--------------------------------------------
+ integer nf,nb,ne
+ parameter (nb = 20)
+ parameter (nf = 3000)
+ parameter (ne = 200)
+ integer bufnum,chdu,hdutyp,maxhdu,hdstrt,hdend,nxthdr,dtstrt
+ integer nxtfld
+ logical wrmode
+ common/ft0001/bufnum(199),chdu(nb),hdutyp(nb),maxhdu(nb),
+ & wrmode(nb),hdstrt(nb,ne),hdend(nb),nxthdr(nb),dtstrt(nb),nxtfld
+ integer tfield,tstart,tbcol,rowlen,tdtype,trept,tnull,scount
+ integer theap,nxheap
+ double precision tscale,tzero
+ common/ft0002/tfield(nb),tstart(nb),tbcol(nf),rowlen(nb),
+ & tdtype(nf),trept(nf),tscale(nf),tzero(nf),tnull(nf),scount(nb)
+ & ,theap(nb),nxheap(nb)
+ character cnull*16, cform*8
+ common/ft0003/cnull(nf),cform(nf)
+C END OF COMMON BLOCK DEFINITIONS------------------------------------
+
+ integer ibuff,nfound
+
+ if (status .gt. 0)return
+
+ if (colnum .lt. 1 .or. colnum .gt. 999)then
+C illegal column number
+ status=302
+ return
+ end if
+
+ ibuff=bufnum(iunit)
+
+C get the parameters which are stored in the common block
+ xbcol=tbcol(colnum+tstart(ibuff))+1
+ xform=cform(colnum+tstart(ibuff))
+ xscal=tscale(colnum+tstart(ibuff))
+ xzero=tzero(colnum+tstart(ibuff))
+ xnull=cnull(colnum+tstart(ibuff))
+
+C read remaining values from the header keywords
+ xtype=' '
+ call ftgkns(iunit,'TTYPE',colnum,1,xtype,nfound,status)
+ xunit=' '
+ call ftgkns(iunit,'TUNIT',colnum,1,xunit,nfound,status)
+ xdisp=' '
+ call ftgkns(iunit,'TDISP',colnum,1,xdisp,nfound,status)
+ end