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|
subroutine clause
c ======================================================================
c gestion des structures de controle
c ======================================================================
c Copyright INRIA
include '../stack.h'
integer while(nsiz),iff(nsiz),else(nsiz),ennd(nsiz)
integer do(nsiz),thenn(nsiz),cas(nsiz),sel(nsiz)
integer elsif(nsiz)
integer semi,equal,eol,blank,comma,name,cmt
integer lparen,rparen
integer r,r1
logical eqid,istrue,ok,first,eptover
parameter (nz1=nsiz-1,nz2=nsiz-2)
parameter (iif=1,iwhile=2,iselect=3)
data semi/43/,equal/50/,eol/99/,blank/40/
data comma/52/,name/1/,cmt/2/
data lparen/41/,rparen/42/
data do/673716237,nz1*673720360/, else/236721422,nz1*673720360/
data ennd/671946510,nz1*673720360/
data iff/673713938,nz1*673720360/
data thenn/386797853,nz1*673720360/
data while/353505568,673720334,nz2*673720360/
data cas/236718604,nz1*673720360/
data sel/236260892,673717516,nz2*673720360/
data elsif/236721422,673713938,nz2*673720360/
c
r = -fin-10
fin = 0
r1=0
if(pt.gt.0) r1=rstk(pt)
c
if (ddt .eq. 4) then
write(buf(1:12),'(3i4)') pt,r1,r
call basout(io,wte,' clause pt:'//buf(1:4)//' rstk(pt):'//
& buf(5:8)//' -fin-10:'//buf(9:12))
endif
c
if(r.le.0.and.pt.le.0) then
call error(34)
return
endif
go to (02,30,30,55,30,55,55,70,80),r
c
01 r = rstk(pt)
ir=r/100
if(ir.ne.8) goto 99
goto(05,15,40,45,55,65,46,75),r-800
goto 99
c
c for
c
02 call getsym
if ( eptover(2,psiz)) return
pstk(pt-1)=0
rstk(pt-1)=0
if (sym .ne. name) then
if (sym. eq. lparen) then
c . for matlab compatiblity for (k=1:n)
call getsym
pstk(pt-1)=1
else
call error(34)
return
endif
endif
call putid(ids(1,pt),syn)
call getsym
if (sym .ne. equal) then
call error(34)
return
endif
call getsym
if(comp(1).ne.0) then
rstk(pt) = 800
call compcl(0)
if(err.gt.0) return
endif
rstk(pt) = 801
icall=1
c *call* expr
return
05 continue
if(err1.gt.0) goto 20
if(comp(1).ne.0) call compcl(0)
if(err.gt.0) return
if (pstk(pt-1).eq.1) then
c . for matlab compatiblity: for (k=1:n)
if (sym. eq. rparen) then
call getsym
else
call error(3)
return
endif
endif
pstk(pt-1) = 0
ids(1,pt-1)=top
if (eqid(syn,do)) then
sym=comma
if(char1.eq.eol) call getsym
endif
if(sym.eq.comma.or.sym.eq.semi) then
sym = semi
pstk(pt) = lpt(4) - 1
elseif( sym.eq.cmt) then
call parsecomment
sym=semi
pstk(pt) = lpt(4)
elseif( sym.eq.eol) then
sym=semi
pstk(pt) = lpt(4)
elseif(lin(lpt(3)-2).eq.blank) then
sym=semi
lpt(4)=lpt(3)-1
pstk(pt) = lpt(4)
char1=blank
else
call error(35)
return
endif
c on recherche le "end" pour s'assurer que toutes les lignes relatives
c sont chargee (pb des matrices sur plusieurs lignes)
call skpins(1)
if(err.gt.0) return
first=.true.
10 if(top.ne.ids(1,pt-1)) then
call error(115)
return
endif
call nextj(ids(1,pt),pstk(pt-1))
if(err.gt.0) return
if(pstk(pt-1).eq.0) goto 20
first=.false.
lpt(4) = pstk(pt)
char1 = blank
rstk(pt) = 802
icall=7
c *call* parse
return
15 continue
if(err1.gt.0.and.catch.eq.0) then
c . remove variable associated to the expression and skip to the end
top=ids(1,pt-1)-1
goto 20
endif
if(comp(1).eq.0) goto 10
call compcl(0)
if(err.gt.0) return
c
c fin for
20 continue
pt = pt-2
icall=7
c char1 = blank
return
c
c while if select/case or if/elseif
c
30 if ( eptover(1,psiz)) return
if (eqid(syn,while)) then
ids(1,pt)=iwhile
elseif(eqid(syn,sel)) then
ids(1,pt)=iselect
else
ids(1,pt)=iif
endif
C call putid(ids(1,pt),syn)
pstk(pt) = lpt(4)-1
if(ids(1,pt).eq.iwhile) then
c . while, look for the end to be sure all lines are loaded
call skpins(1)
if(err.gt.0) return
endif
35 lpt(4) = pstk(pt)
pstk(pt)=lpt(4)
char1 = blank
call getsym
rstk(pt)=803
if(comp(1).ne.0) call compcl(0)
if(err.gt.0) return
goto 37
36 rstk(pt) = 803
call getsym
37 icall=1
c *call* expr
return
40 if (ids(1,pt).ne.iselect) goto 46
c select expression evaluated
41 continue
c skip following commas or semi columns if any
if(sym.eq.comma.or.sym.eq.semi) then
call getsym
goto 41
endif
c end of line reached?
if(sym.eq.eol.or.sym.eq.cmt) then
if(sym.eq.cmt) call parsecomment
if(macr.gt.0.and.lin(lpt(4)+1).eq.eol) then
call error(47)
return
endif
if(comp(1).ne.0) call seteol()
c . get the following line
if(lpt(4).eq.lpt(6)) then
call getlin(1,0)
else
lpt(4)=lpt(4)+1
char1=blank
endif
call getsym
goto 41
endif
c looking for the "case" keyword
if(sym.eq.name) then
if (eqid(syn,cas)) then
rstk(pt)=807
if(comp(1).ne.0) then
call compcl(0)
if(err.gt.0) return
endif
else
call error(35)
return
endif
elseif(lin(lpt(3)-2).eq.blank) then
sym=semi
lpt(4)=lpt(3)-1
char1=blank
goto 41
else
call error(35)
return
endif
42 if(comp(1).eq.0) then
c recopie de la premiere expression
l=lstk(top)
l1=lstk(top+1)
if(top+2.ge.bot) then
call error(18)
if(err.gt.0) return
endif
err=lstk(top+1)+l1-l-lstk(bot)
if(err.gt.0) then
call error(17)
if(err.gt.0) return
endif
call unsfdcopy(l1-l,stk(l),1,stk(l1),1)
top=top+1
lstk(top+1)=lstk(top)+l1-l
endif
43 call getsym
rstk(pt) = 804
icall=1
c *call* expr
return
45 continue
if(comp(2).ne.0) goto 46
rstk(pt)=807
fin = equal
rhs=2
icall=4
c *call* allops(==)
return
46 if (eqid(syn,do) .or. eqid(syn,thenn)
& .or.sym.eq.comma.or.sym.eq.semi.or.sym.eq.eol) then
sym = semi
elseif(sym.eq.cmt) then
call parsecomment
sym = semi
elseif(lin(lpt(3)-2).eq.blank) then
c . added for matlab compatibility (then or , is not mandatory)
sym=semi
lpt(4)=lpt(3)-1
char1=blank
else
call error(35)
return
endif
if(comp(1).ne.0) goto 48
c comparaison ...
ok=istrue(1)
if(err.gt.0) return
if(ok) then
goto 50
else
call skpins(0)
if(err.gt.0) return
if(eqid(syn,else)) goto 60
if(eqid(syn,elsif)) then
if(ids(1,pt).ne.iif) then
call error(34)
return
endif
goto 36
endif
if(eqid(syn,cas)) then
if(ids(1,pt).ne.iselect) then
call error(34)
return
endif
goto 42
endif
if(eqid(syn,ennd)) goto 66
endif
48 rstk(pt)=804
call compcl(0)
if(err.gt.0) return
c
c then
c --------
50 toperr=top
rstk(pt) = 805
icall=7
c *call* parse
return
55 if(comp(1).eq.0) then
if (ids(1,pt).eq.iwhile) go to 35
if(.not.eqid(syn,ennd)) then
call skpins(1)
if(err.gt.0) return
endif
else
call compcl(0)
if(err.gt.0) return
if(eqid(syn,else)) goto 60
if(eqid(syn,elsif)) goto 36
if(eqid(syn,cas)) goto 43
endif
goto 66
c
c else
c ---------
60 rstk(pt) = 806
icall=7
c *call parse*
return
65 if(comp(1).ne.0) then
call compcl(0)
if(err.gt.0) return
endif
goto 66
c
c fin if ou while ou select
c------------------------------
66 if(ids(1,pt).eq.iselect.and.comp(1).eq.0) top=top-1
pt=pt-1
icall=7
return
c
c try
c---------
70 continue
if ( eptover(1,psiz)) return
rstk(pt)=808
if(comp(1).ne.0) then
call compcl(1)
if(err.gt.0) return
else
c . set error control mode
pstk(pt)=top
ids(2,pt)=errct
ids(3,pt)=err2
ids(4,pt)=err1
ids(5,pt)=errpt
ids(6,pt)=(lct(4)+100)+10000*sym
errpt=pt
ids(1,pt)=1
imode=1
imess=1
errct=-((8*imess+imode)*100000+1)
endif
ic=char1
isym=sym
call getsym
c end of line reached?
if(sym.eq.eol.or.sym.eq.cmt) then
if(sym.eq.cmt) call parsecomment
if(comp(1).ne.0) call seteol()
c . get the following line
if(lpt(4).eq.lpt(6)) then
call getlin(1,0)
else
lpt(4)=lpt(4)+1
char1=blank
endif
else
c ones symbol back
lpt(4)=lpt(3)
sym=isym
char1=ic
endif
icall=7
c *call* parse (for the try instructions)
return
75 continue
c end of try reached or an error occurred
if (max(err2,err1).gt.0) then
c . an error occured in the try part
c . skip remaining instructions up to catch or end keywords
call skpins(0)
errct=ids(2,pt)
err2=ids(3,pt)
err1=ids(4,pt)
errpt=ids(5,pt)
sym=ids(6,pt)/10000
lct(4)=ids(6,pt)-10000*sym-100
if(eqid(syn,ennd)) then
c . no catch keyword "try catch" finished
goto 76
endif
c . execute catch instructions
icall=7
c * call* parse
return
endif
if(comp(1).eq.0) then
errct=ids(2,pt)
err2=ids(3,pt)
err1=ids(4,pt)
errpt=ids(5,pt)
sym=ids(6,pt)/10000
lct(4)=ids(6,pt)-10000*sym-100
else
call compcl(3)
if(err.gt.0) return
endif
76 pt=pt-1
icall=7
c *call* parse
return
c
c catch
c---------
80 continue
if(rstk(pt).ne.808) then
call error(34)
return
endif
if(comp(1).ne.0) then
call compcl(2)
if(err.gt.0) return
icall=7
c *call* parse
return
endif
C if (max(err2,err1).gt.0) then
C c . an error occured in the try part, execute next instructions
C errct=ids(2,pt)
C err2=ids(3,pt)
C err1=ids(4,pt)
C errpt=ids(5,pt)
C icall=7
C c *call* parse
C return
C else
c . no error occured in the try part, skip next instructions
if(.not.eqid(syn,ennd)) then
call skpins(1)
if(err.gt.0) return
goto 75
endif
C endif
c
99 call error(22)
if (err .gt. 0) return
return
end
|
