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|
subroutine iread(it)
c Copyright INRIA
c
INCLUDE '../stack.h'
c
integer top2,tops,id(nlgh),h(nsiz)
integer ftyp,fmttyp,mode(2)
logical opened,eptover
integer iadr,sadr
logical checkrhs,checklhs
c
save opened,lunit,job,icomp
c
iadr(l)=l+l-1
sadr(l)=(l/2)+1
c
if (ddt .eq. 4) then
write(buf(1:4),'(i4)') fin
call basout(io,wte,' matio '//buf(1:4))
endif
c
tops=top
c
120 continue
lw=lstk(top+1)
if(.not.checkrhs('iread',3,5)) return
if(.not.checklhs('iread',1,1)) return
c
c opening file
top2 = top
top = top-rhs+1
il=iadr(lstk(top))
mode(1)=-1
mode(2)=0
call v2unit(top,mode,lunit,opened,ierr)
if(ierr.gt.0) return
c
iacces=0
if(rhs.gt.3) then
il=iadr(lstk(top2))
if(rhs.eq.5) then
iacces=top2-1
else
if(istk(il).eq.1) then
call error(61)
goto 996
endif
endif
c analyse du format
if(istk(il).ne.10) then
err=rhs
call error(55)
goto 996
endif
nc=istk(il+5)-1
l=il+5+istk(il+1)*istk(il+2)
ftyp=fmttyp(istk(l),nc)
if(ftyp.eq.0) then
call error(49)
goto 996
endif
call cvstr(nc,istk(l),buf,1)
top2=top2-1
fin=-fin
endif
c
121 if(iacces.ne.0) then
c get record numbers
ilb=iadr(lstk(iacces))
if(istk(ilb+3).ne.0) then
err=top2-top+1
call error(52)
goto 996
endif
nb=istk(ilb+1)*istk(ilb+2)
lb=sadr(ilb+4)
ilb=iadr(lw)
err=sadr(ilb+nb)-lstk(bot)
if(err.gt.0) then
call error(17)
goto 996
endif
do 122 i=1,nb
istk(ilb+i-1)=int(stk(lb+i-1))
122 continue
top2=iacces-1
endif
123 continue
c number of rows
il=iadr(lstk(top2))
l=sadr(il+4)
n=int(stk(l))
top2=top2-1
c number of columns
il=iadr(lstk(top2))
l=sadr(il+4)
m=int(stk(l))
il=iadr(lstk(top))
l=sadr(il+4)
if(m.eq.0.or.n.le.0) then
c terminate if nothing to read
istk(il)=1
istk(il+1)=0
istk(il+2)=0
istk(il+3)=0
lstk(top+1)=sadr(il+4)
if(.not.opened) then
mode(1)=0
mode(2)=0
call clunit(-lunit,buf,mode)
endif
goto 999
endif
c create header of variable to return
istk(il)=8
istk(il+1)=m
istk(il+2)=n
istk(il+3)=it
l=il+4
lw=l+(m*n*it/4+1)
err=sadr(lw+n*it/4+1)-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
if(fin.lt.0.and.ftyp.ne.1) then
buf='incorrect format'
call error(9999)
return
endif
if(fin.gt.0) then
buf(1:1)='*'
nc=1
endif
c
if(iacces.eq.0) then
c sequential acces
if(m.gt.0) then
c . specified number of rows
if(it.eq.4) then
call mibasin(ierr,lunit,buf(1:nc),istk(l),m,n)
elseif(it.eq.2) then
call mi2basin(ierr,lunit,buf(1:nc),istk(l),m,n)
elseif(it.eq.1) then
call mi2basin(ierr,lunit,buf(1:nc),istk(l),m,n)
call i22i1(m*n,istk(l),1,istk(l),1)
endif
if(ierr.eq.1) then
goto 997
elseif(ierr.eq.2) then
goto 998
endif
else
c . unspecified number of rows
m=-(iadr(lstk(bot))-li)*it/4
if(it.eq.4) then
call mibasin(ierr,lunit,buf(1:nc),istk(l),n,m)
elseif(it.eq.2) then
call mi2basin(ierr,lunit,buf(1:nc),istk(l),n,m)
elseif(it.eq.1) then
call mi2basin(ierr,lunit,buf(1:nc),istk(l),n,m)
call i22i1(n*m,istk(l),1,istk(l),1)
endif
if(ierr.eq.0) goto 1241
if(ierr.eq.2) goto 998
if(m.ne.0) then
if(m.ge.1.and.n.ge.1) then
err=sadr(l+2*m*n*it/4)-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
l1=l+m*n
if(it.eq.4) then
call icopy(m*n,istk(l),1,istk(l1),1)
call imtran(istk(l1),n,istk(l),m,n,m)
elseif(it.eq.2) then
call i2copy(m*n,istk(l),1,istk(l1),1)
call i2mtran(istk(l1),n,istk(l),m,n,m)
elseif(it.eq.1) then
call i1copy(m*n,istk(l),1,istk(l1),1)
call i1mtran(istk(l1),n,istk(l),m,n,m)
endif
istk(il+1)=m
endif
else
istk(il+1)=0
istk(il+2)=0
endif
endif
else
c acces direct
if(nb.ne.m) then
call error(42)
goto 996
endif
if(fin.gt.0) then
call error(61)
goto 996
endif
if(m.lt.0) then
call error(43)
return
endif
if(it.eq.4) then
call irecread(lunit,buf(1:nc),istk(ilb),n,m,istk(l),ierr)
elseif(it.eq.2) then
call i2recread(lunit,buf(1:nc),istk(ilb),n,m,istk(l),ierr)
elseif(it.eq.1) then
call i2recread(lunit,buf(1:nc),istk(ilb),n,m,istk(l),ierr)
call i22i1(m*n, istk(l),1, istk(l),1)
endif
if(ierr.eq.1) goto 998
endif
lstk(top+1)=sadr(l+m*n*it/4+1)
if(.not.opened) then
mode(1)=0
mode(2)=0
call clunit(-lunit,buf,mode)
endif
goto 999
996 if(.not.opened) call clunit(-lunit,buf,mode)
return
997 err=i
call error(62)
if(.not.opened) call clunit(-lunit,buf,mode)
return
998 call error(49)
if(.not.opened) call clunit(-lunit,buf,mode)
return
c
999 return
end
subroutine irecread(lunit,fmt,records,n,m,a,ierr)
integer lunit,records(*),n,m,ia,a(m,*),ierr
character*(*) fmt
do 10 i=1,m
read(lunit,fmt,rec=records(i),err=20) (a(i,j),j=1,n)
10 continue
ierr=0
return
20 ierr=1
return
end
subroutine i2recread(lunit,fmt,records,n,m,a,ierr)
integer lunit,records(*),n,m,ia,ierr
integer*2 a(m,*)
character*(*) fmt
do 10 i=1,m
read(lunit,fmt,rec=records(i),err=20) (a(i,j),j=1,n)
10 continue
ierr=0
return
20 ierr=1
return
end
subroutine mibasin(ierr,lunit,fmt,v,m,n)
c Copyright INRIA
include '../stack.h'
character*(*) fmt
integer v(*)
integer ierr,lunit
character*512 string
c
ierr=0
if(lunit.eq.rte) then
string=' '
call xscion(iflag)
if(m.gt.0) then
do 01 l=1,m
call zzledt(string,len(string),lline,status,0,iflag)
if(status.ne.0) goto 10
if (lline.eq.0) then
string(1:1)=' '
lline=1
endif
if(fmt(1:1).ne.'*') then
read(string(1:lline),fmt,end=10,err=20) (v(l-1+i),
$ i=1,n*iv,iv)
else
call rldint(string(1:lline),v(l),iv,n1,n,ierr)
if(ierr.ne.0) goto 20
if(n1.lt.n) goto 10
endif
01 continue
else
if(fmt(1:1).ne.'*') then
read(lunit,fmt,end=10,err=20) (v(i),i=1,n*iv,iv)
else
read(lunit,*,end=10,err=20) (v(i),i=1,n*iv,iv)
endif
endif
c
return
c
10 ierr=1
return
20 ierr=2
return
end
subroutine i2basin(ierr,lunit,fmt,v,iv,n)
c Copyright INRIA
include '../stack.h'
character*(*) fmt
integer*2 v(*)
integer ierr,lunit
character*512 string
c
ierr=0
if(lunit.eq.rte) then
string=' '
call xscion(iflag)
call zzledt(string,len(string),lline,status,0,iflag)
if(status.ne.0) goto 10
if (lline.eq.0) then
string(1:1)=' '
lline=1
endif
if(fmt(1:1).ne.'*') then
read(string(1:lline),fmt,end=10,err=20) (v(i),i=1,n*iv,iv)
else
call rldi2(string(1:lline),v,iv,n1,n,ierr)
if(ierr.ne.0) goto 20
if(n1.lt.n) goto 10
endif
else
if(fmt(1:1).ne.'*') then
read(lunit,fmt,end=10,err=20) (v(i),i=1,n*iv,iv)
else
read(lunit,*,end=10,err=20) (v(i),i=1,n*iv,iv)
endif
endif
c
return
c
10 ierr=1
return
20 ierr=2
return
end
subroutine rldint(str,v,iv,n,maxv,ierr)
c!purpose
c internal "list-directed" read mode is not standard fortran.
c This routine emulates :read(str,*) (v(1,i),i=1,n)
c!
integer v(iv,maxv),vv
character*(*) str
character*1 si
logical del
c
ls=len(str)
del=.true.
c
ierr=0
n0=n
n=0
i=0
10 i=i+1
c loop on descriptors
if(i.gt.ls) goto 20
si=str(i:i)
if(si.eq.'/'.or.si.eq.',') then
if(del) then
if(n+1.gt.maxv) return
v(1,n+1)=0
n=n+1
goto 10
else
del=.true.
endif
endif
if(si.ne.' '.and.si.ne.'/'.and.si.ne.',') then
c conversion of a descriptor to a (repeated) value
call nextint(str(i:),vv,nv,ir,ierr)
if(ierr.ne.0) return
if(n+nv.gt.maxv) nv=maxv-n
if(nv.le.0) return
call iset(nv,vv,v(1,n+1),iv)
n=n+nv
i=i+ir-2
del=.false.
endif
goto 10
20 continue
if(del) then
if(n+1.gt.maxv) return
v(1,n+1)=0
n=n+1
endif
return
end
subroutine rldi2(str,v,iv,n,maxv,ierr)
c!purpose
c internal "list-directed" read mode is not standard fortran.
c This routine emulates :read(str,*) (v(1,i),i=1,n)
c!
integer*2 v(iv,maxv),vv2
integer vv
character*(*) str
character*1 si
logical del
c
ls=len(str)
del=.true.
c
ierr=0
n0=n
n=0
i=0
10 i=i+1
c loop on descriptors
if(i.gt.ls) goto 20
si=str(i:i)
if(si.eq.'/'.or.si.eq.',') then
if(del) then
if(n+1.gt.maxv) return
v(1,n+1)=0
n=n+1
goto 10
else
del=.true.
endif
endif
if(si.ne.' '.and.si.ne.'/'.and.si.ne.',') then
c conversion of a descriptor to a (repeated) value
call nextint(str(i:),vv,nv,ir,ierr)
if(ierr.ne.0) return
if(n+nv.gt.maxv) nv=maxv-n
if(nv.le.0) return
call i42i2(1,vv,1,vv2,1)
call i2set(nv,vv2,v(1,n+1),iv)
n=n+nv
i=i+ir-2
del=.false.
endif
goto 10
20 continue
if(del) then
if(n+1.gt.maxv) return
v(1,n+1)=0
n=n+1
endif
return
end
subroutine nextint(str,v,nv,ir,ierr)
c form integer number described by a string with format:
c [nn*][+|-][mmmmm]
character*(*) str
character*1 next
integer v
integer sgn
ls=len(str)
nv=1
i=1
ic=0
c
01 if(str(i:i).eq.'-') then
sgn=-1
i=i+1
elseif(str(i:i).eq.'+') then
sgn=1
i=i+1
else
sgn=1
endif
10 if(i.gt.ls) goto 20
call s2int(str(i:),nlz,iv,ir,ierr)
if(ierr.ne.0) iv=0
i=i-1+ir
if(i.le.ls) then
next=str(i:i)
else
next=' '
endif
if (next.eq.','.or.next.eq.'/') next=' '
c
if(next.eq.'*') then
if(ic.eq.0.and.iv.gt.0.and.sgn.gt.0) then
c number of values
nv=iv
i=i+1
goto 10
else
ierr=2
return
endif
elseif(next.eq.' ') then
c end of number definition
goto 20
else
ierr=2
return
endif
20 continue
ir=i
v=sgn*iv
return
end
|
