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subroutine intmgetl
c Copyright INRIA/ENPC
INCLUDE '../stack.h'
c
integer mode(2)
integer iadr,sadr
logical checkrhs,checklhs,getscalar
logical opened
c
iadr(l)=l+l-1
sadr(l)=(l/2)+1
c
rhs = max(0,rhs)
if(.not.checkrhs('mgetl',1,2)) return
if(.not.checklhs('mgetl',1,1)) return
c opening file
call v2cunit(top-rhs+1,'rb',lunit,opened,ierr)
if(ierr.lt.0) then
call error(244)
return
elseif(ierr.gt.0) then
return
endif
c
if(rhs.eq.2) then
if (.not.getscalar('mgetl',top,top,lr)) return
m=stk(lr)
top=top-1
else
m=-1
endif
il=iadr(lstk(top))
ili=il+4
if(m.gt.0) then
c . specified number of lines
err=sadr(ili+2)-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
li=ili+m+1
istk(ili)=1
mr=m
do 10 i=1,m
mnt=0
09 call readnextline(lunit,buf,bsiz,mn,nr,info)
if(info.eq.-1) then
mr=i-1
goto 10
c err=i
c call error(62)
c if(.not.opened) call clunit(-lunit,buf,mode)
c return
endif
mn=max(0,mn-1)
err=sadr(li+mn)-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
call cvstr(mn,istk(li),buf(1:mn),0)
li=li+mn
mnt=mnt+mn
if(info.eq.2) then
c . buffer too small for this line
goto 09
endif
ili=ili+1
istk(ili)=istk(ili-1)+mnt
10 continue
if(mr.eq.0) then
istk(il)=1
istk(il+1)=0
istk(il+2)=0
istk(il+3)=0
lstk(top+1)=sadr(il+4)
else
istk(il)=10
istk(il+1)=mr
istk(il+2)=1
if(mr.lt.m) then
nc=istk(il+4+mr)-1
call icopy(nc,istk(il+4+m+1),1,istk(il+4+mr+1),1)
li=il+4+mr+nc
endif
lstk(top+1)=sadr(li)
endif
elseif(m.eq.0) then
istk(il)=1
istk(il+1)=0
istk(il+2)=0
istk(il+3)=0
lstk(top+1)=sadr(il+4)
else
c . unspecified number of lines
li=ili
i=-1
12 i=i+1
mnt=0
lic=li+1
13 call readnextline(lunit,buf,bsiz,mn,nr,info)
if(info.eq.-1) goto 20
mn=max(0,mn-1)
if(mn.gt.0) then
err=sadr(lic+mn+1)-lstk(bot)
if(err.gt.0) then
call error(17)
goto 996
endif
call cvstr(mn,istk(lic),buf(1:mn),0)
lic=lic+mn
endif
mnt=mnt+mn
if(info.eq.2) then
c . buffer too small for this line
goto 13
endif
istk(li)=mnt
li=li+mnt+1
if(info.eq.-1) then
if(mnt.gt.0) i=i+1
goto 20
endif
goto 12
20 m=i
if(m.le.0) then
istk(il)=1
istk(il+1)=0
istk(il+2)=0
istk(il+3)=0
lstk(top+1)=sadr(il+4)
else
err=sadr(li+2+li-ili+1)-lstk(bot)
if(err.gt.0) then
call error(17)
goto 996
endif
call icopy(li-ili+1,istk(ili),-1,istk(li+2),-1)
lis=li+2
istk(il)=10
istk(il+1)=m
istk(il+2)=1
istk(ili)=1
li=ili+m+1
do 30 j=1,m
mn=istk(lis)
istk(ili+1)=istk(ili)+mn
call icopy(mn,istk(lis+1),1,istk(li),1)
lis=lis+mn+1
li=li+mn
ili=ili+1
30 continue
lstk(top+1)=sadr(li+1)
endif
endif
996 if(.not.opened) call clunit(-lunit,buf,mode)
return
end
|
