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subroutine iff_set(key,str,wrthis)
c
c//////////////////////////////////////////////////////////////////////
c Copyright (c) 1997--2000 Matthew Newville, The University of Chicago
c Copyright (c) 1992--1996 Matthew Newville, University of Washington
c
c Permission to use and redistribute the source code or binary forms of
c this software and its documentation, with or without modification is
c hereby granted provided that the above notice of copyright, these
c terms of use, and the disclaimer of warranty below appear in the
c source code and documentation, and that none of the names of The
c University of Chicago, The University of Washington, or the authors
c appear in advertising or endorsement of works derived from this
c software without specific prior written permission from all parties.
c
c THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
c EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
c MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
c IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
c CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
c TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
c SOFTWARE OR THE USE OR OTHER DEALINGS IN THIS SOFTWARE.
c//////////////////////////////////////////////////////////////////////
c
c purpose: set program variables for ifeffit:
c scalars, arrays, strings, string arrays
c arguments:
c key command to perform (def, set, guess) [in]
c str command line for ifeffit [in]
c
c notes:
c 1. needed changes:
c a) add string arrays (for titles lines, plot labels, ???)
c b) support guess
c
c requires: everything in ifeffit
implicit none
include 'consts.h'
include 'keywrd.h'
include 'arrays.h'
include 'encod.h'
include 'echo.h'
save
character*(*) key, str, prefix*256, tmpnam*64
character*2048 formula, bxvals(mkeys)
integer iofarr, iofsca, istrln, ilen, iltmp
integer icode(micode) , jcode(micode), encod, i_sync
integer i, j, k, ntmp, idot, ier, ik, isset, isgues, ix
integer xafs_path, iup, ret
double precision tmp2(maxpts), tmpx, getsca
logical isarr, isnum, istext, s_is_n, trivial
logical isvnam, wrthis,lkeep, ic_is_arr
external iofarr, iofsca, istrln, isnum
external isvnam, ic_is_arr, encod, getsca, xafs_path
c find the right thing to evaluate:
c 1. is it something that takes a string value, or a numeric value?
c 2. if numeric, is it an array or a scalar?
c if not, assume it will be an array, -- we'll check later
c look for an array with the same name, or the first empty array
c print*, 'iff_set ', key(1:3), mac_define(1)
call gettxt('group', prefix)
call bkeys(str, mkeys, keys, bxvals, nkeys)
c GUESS / SET / DEF
if (int(getsca('&sync_level',0)).ge.6) call iff_sync
isgues = 0
isset = 0
if (key.eq.'guess') isgues = 1
if (key.eq.'set') isset = 1
ix = 0
c
100 continue
ix = ix + 1
if (ix.gt.nkeys) return
ntmp = maxsize_array
ilen = istrln(bxvals(ix))
s_is_n = isnum(bxvals(ix)(1:ilen))
ccc formula= '('//bxvals(ix)(1:ilen)//')'
formula= bxvals(ix)(1:ilen)
tmpnam = keys(ix)
iltmp = istrln(tmpnam)
cc print*, ' iff_set: ', tmpnam(:iltmp), ' -> ', formula(1:ilen)
if ((iltmp.le.0).or.(tmpnam.eq.undef)) then
call echo(' Warning -- command ignored (typo?):')
call warn(1,' -> '//keys(ix)(1:ik))
go to 100
endif
istext = tmpnam(1:1).eq.'$'
c if the value is undefined, then the string was almost certainly
c a typo that got misinterpreted by getlin to be "set gibberish"
if (bxvals(ix).eq.undef) then
ik = istrln(keys(ix))
call echo(' Warning -- command ignored (typo?):')
call warn(1,' -> '//keys(ix)(1:ik))
wrthis = .false.
go to 100
end if
c
c is the value defined?
c is this a text variable?
if (istext) then
if (.not.isvnam(tmpnam,3)) then
ik = istrln(tmpnam)
call warn(1,' Invalid text string name: '//
$ tmpnam(1:ik) )
go to 100
end if
if (tmpnam.eq.'$&build') then
call warn(2,' can''t reset value of $&build')
go to 100
endif
cc call str_eval(bxvals(ix), messg)
cc print*, ' messg = ', messg(1:20)
call settxt(tmpnam(2:),bxvals(ix))
return
c check for immutable values, like pi:
elseif (tmpnam.eq.'pi') then
call warn(2,' can''t reset value of pi')
go to 100
elseif (tmpnam.eq.'etok') then
call warn(2,' can''t reset value of etok')
go to 100
c this is a numeric variable (scalar or array and maybe "guess"ed)
else
c
c first, check that it's not a macro or command name
do 280 i = 1 , mckeys
if (ckeys(i).eq.tmpnam) then
ik = istrln(tmpnam)
call warn(2,' Invalid variable name: '//
$ tmpnam(1:ik) // ' is a command name')
go to 100
end if
280 continue
do 290 i = 1 , macmax
if (macnam(i).eq.tmpnam) then
ik = istrln(tmpnam)
call warn(2,' Invalid variable name: '//
$ tmpnam(1:ik) // ' is a macro name')
go to 100
end if
290 continue
if (.not.isvnam(tmpnam,-1)) then
ik = istrln(tmpnam)
call warn(2,' Invalid variable name: '//
$ tmpnam(1:ik) )
go to 100
end if
c so encod and decod the array
cc print*, 'iff_set-> encode for ',s_is_n,' ',formula(1:50)
if (s_is_n) then
cc print*, ' call str2dp ', bxvals(ix)(1:ilen)
call str2dp(bxvals(ix)(1:ilen),tmparr(1), ier)
tmparr(2) = zero
isarr = .false.
trivial = .true.
idot = 0
else
trivial = .false.
cc print*, ' - encod : ', formula(1:40)
ier = encod(formula, jcode, icode)
if (ier.ne.0) goto 700
if (iprint.ge.1) call rpndmp(jcode)
tmparr(1) = zero
tmparr(2) = zero
cc print*, ' - decod'
call decod(icode, micode, consts, scalar, array,
$ narray, nparr, maxsize_array, maxarr, ntmp, tmparr)
cc print*, 'iff_set: ntmp = ', ntmp
c now check whether this should have really been a scalar
c that is, does the array refer to other arrays??
isarr = ic_is_arr(icode,micode).and.(ntmp .gt. 1)
isarr = isarr.and.(isgues.eq.0)
idot = index(tmpnam,'.')
cc print*, ' isarr ', ic_is_arr(icode,micode), ntmp
endif
cc print*, 'iff_set: isarr, isset = ', isarr, isset
c this is an array
if (isarr) then
cc print*, ' - set_array ', ntmp
call set_array(tmpnam, prefix, tmparr, ntmp, 1)
k = iofarr(tmpnam,prefix,0,0)
if (k.lt.0) then
call echo(' *** error: could not find variable')
tmpstr = ' *** trying to define '//tmpnam
call warn(2,tmpstr)
return
else if (k.eq.0) then
call warn(3,' *** error: out of memory')
return
endif
arrfrm(k) = ' '
c
c here (and only here) do we 'save the formula' of an array
if (isset.eq.0) then
arrfrm(k) = formula
do 440 j = 1, micode
icdarr(j,k) = icode(j)
440 continue
endif
c print*, ' saving formula for ', k, ' -> ', tmpnam(1:40)
c print*, ' == ', arrfrm(k)(1:40)
c call rpndmp(jcode)
c call rpndmp(icdarr(1,k))
call fixarr(k,tmpnam,ntmp,isset)
c
c this is a scalar
else
idot = index(tmpnam,'.')
cc print* ,' value is a scalar ', idot, tmpnam
if (idot.ne.0) then
k = istrln(tmpnam)
ik = istrln(formula)
cc call rpndmp(icode)
call echo(' ** cannot set scalar value to array **')
call warn(2,' '//tmpnam(1:k)//' = '//formula(1:ik))
return
end if
c look up str in list of scalar names
k = iofsca(tmpnam, 1)
scanam(k) = tmpnam
scafrm(k) = ' '
scalar(k) = tmparr(1)
c is this a 'set' or 'guess' or is it a 'def'
if ((isgues.eq.1).or.(isset.eq.1)) then
do 460 j = 2, micode
icdsca(j,k) = 0
460 continue
icdsca(1,k) = k + jscale
if (isgues.eq.1) icdsca(1,k) = -1
else
c determine if this is a trivial definition 'z = 22.'
c or even sqrt(4/7), which is to say: no named Program Variables,
c just constant numbers and operators.
if (.not.trivial) then
cc print*, ' non trivial scalar'
scafrm(k) = formula
tmpx = zero
call str2dp(formula,tmpx,ier)
if (tmpx .ne. zero) then
trivial =
$ (abs(tmpx - tmparr(1))/tmpx .le. 1.d-6)
elseif(ier.eq.-999) then
trivial = .true.
do 470 j = 1, micode
if (((icode(j) .ge. 1) .and.
$ (icode(j) .lt. jconst))) trivial =.false.
if ( (icode(j).eq.jdebye).or.
$ (icode(j).eq.jeins)) trivial =.false.
if (icode(j).eq.0) go to 475
470 continue
475 continue
endif
endif
if (trivial) then
scafrm(k) = ' '
do 492 j = 1, micode
icdsca(j,k) = 0
492 continue
icdsca(1,k) = k + jscale
if (isgues.eq.1) icdsca(1,k) = -1
else
cc print*, 'save formula'
do 490 j = 1, micode
icdsca(j,k) = icode(j)
490 continue
endif
end if
end if
c finally, check for special system vars
if (tmpnam.eq.'&screen_echo') then
i_echo = int(tmparr(1))
elseif (tmpnam.eq.'path_index') then
iup = int(tmparr(1))
call synvar
if (iup .gt. 0) ret = xafs_path(iup,tmparr,tmp2,tmpx)
endif
end if
700 continue
if (ix.lt.nkeys) go to 100
c end subroutine iff_set
if (int(getsca('&sync_level',0)).ge.2) call iff_sync
return
end
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