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subroutine intexecstr
c Copyright INRIA/ENPC
INCLUDE '../stack.h'
c
integer retu(6),comma,eol,topk
logical eptover,getsmat,checklhs,checkrhs,checkval
integer iadr,sadr
c
save opened,lunit,job,icomp
c
data retu/27,14,29,30,27,23/,comma/52/,eol/99/
c
iadr(l)=l+l-1
sadr(l)=(l/2)+1
c
if(rstk(pt).eq.903) goto 24
rhs=max(0,rhs)
topk=top
if(.not.checklhs('execstr',0,1)) return
if(.not.checkrhs('execstr',1,3)) return
imess=1
if(rhs.eq.3) then
if(.not.getsmat('execstr',topk,top,m,n,1,1,il1,n1)) return
if(.not.checkval('execstr',m*n,1) ) return
l=abs(istk(il1))
if(l.eq.22) imess=0
top=top-1
endif
if(rhs.ge.2) then
if(.not.getsmat('execstr',topk,top,m,n,1,1,il1,n1)) return
if(.not.checkval('execstr',m*n,1) ) return
top=top-1
icheck=1
else
icheck=0
endif
rhs=1
lw=lstk(top+1)
il=iadr(lstk(top))
if(lhs.gt.1) then
call error(41)
return
endif
if(istk(il).ne.10) then
if(istk(il).eq.1.and.istk(il+1).eq.0) then
istk(il)=0
lstk(top+1)=lstk(top)+1
return
endif
err=1
call error(55)
return
endif
n=istk(il+1)*istk(il+2)
l=il+5+n
if(n.gt.1) then
c . add <eol> at the end of the first n-1 lines
i1=n-1
do 21 i=n,2,-1
ld=l+istk(il+3+i)-1
ln=istk(il+4+i)-istk(il+3+i)
call icopy(ln,istk(ld),-1,istk(ld+i1),-1)
i1=i1-1
istk(ld+i1)=eol
istk(il+4+i)=istk(il+4+i)+i-1
21 continue
endif
c add ",return,<eol>,<eol>" at the end of the last line
l1=l-1+istk(l-1)
istk(l1)=comma
l1=l1+1
call icopy(6,retu,1,istk(l1),1)
l1=l1+6
istk(l1)=comma
l1=l1+1
istk(l1)=eol
l1=l1+1
istk(l1)=eol
istk(l-1)=istk(l-1)+10
lstk(top+1)=sadr(l1)+1
c
fin=lstk(top)
pt=pt+1
pstk(pt)=top
rstk(pt)=903
c error control
ids(2,pt)=errct
ids(3,pt)=err2
ids(4,pt)=err1
ids(5,pt)=errpt
if(icheck.eq.0) then
ids(1,pt)=0
else
errpt=pt
ids(1,pt)=1
imode=1
c imess=1
num=-1
errct=(8*imess+imode)*100000+abs(num)
if(num.lt.0) errct=-errct
endif
icall=5
c *call* macro
go to 999
24 continue
if(ids(1,pt).eq.1) then
c return error number
il=iadr(lstk(top))
istk(il)=1
istk(il+1)=1
istk(il+2)=1
istk(il+3)=0
l=sadr(il+4)
stk(l)=err1
lstk(top+1)=l+1
errct=ids(2,pt)
err2=ids(3,pt)
err1=ids(4,pt)
fun=0
else
if(errct.ne.0.and.err1.gt.0) then
top=top-1
else
errpt=ids(5,pt)
il=iadr(lstk(top))
istk(il)=0
lstk(top+1)=lstk(top)+1
err1=0
endif
endif
pt=pt-1
goto 999
999 return
end
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