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*
* length_of_strings.F
*
* Ansley Manke
* May 2002
*
* Returns length of strings in input array.
*
* In this subroutine we provide information about
* the function. The user configurable information
* consists of the following:
*
* descr Text description of the function
*
* num_args Required number of arguments
*
* axis_inheritance Type of axis for the result
* ( CUSTOM, IMPLIED_BY_ARGS, NORMAL, ABSTRACT )
* CUSTOM - user defined axis
* IMPLIED_BY_ARGS - same axis as the incoming argument
* NORMAL - the result is normal to this axis
* ABSTRACT - an axis which only has index values
*
* piecemeal_ok For memory optimization:
* axes where calculation may be performed piecemeal
* ( YES, NO )
SUBROUTINE length_of_strings_init(id)
INCLUDE 'ferret_cmn/EF_Util.cmn'
INTEGER id, arg
* **********************************************************************
* USER CONFIGURABLE PORTION |
* |
* V
CALL ef_set_desc(id,
. 'Demo Function:Returns the lengths of strings in A' )
CALL ef_set_num_args(id, 1)
CALL ef_set_axis_inheritance(id, IMPLIED_BY_ARGS,
. IMPLIED_BY_ARGS, IMPLIED_BY_ARGS, IMPLIED_BY_ARGS)
CALL ef_set_result_type(id, FLOAT_RETURN)
arg = 1
CALL ef_set_axis_influence(id, arg, YES, YES, YES, YES)
CALL ef_set_arg_name(id, arg, 'A')
CALL ef_set_arg_desc(id, arg, 'Array of strings')
CALL ef_set_arg_type (id, arg, STRING_ARG)
* ^
* |
* USER CONFIGURABLE PORTION |
* **********************************************************************
RETURN
END
* In this subroutine we compute the result
*
SUBROUTINE length_of_strings_compute(id, arg_1, result)
INCLUDE 'ferret_cmn/EF_Util.cmn'
INCLUDE 'ferret_cmn/EF_mem_subsc.cmn'
INTEGER id
* Single precision Ferret: string arg and result need to be twice the length.
INTEGER strdf
#ifdef double_p
PARAMETER (strdf = 1)
#else
PARAMETER (strdf = 2)
#endif
REAL bad_flag(EF_MAX_ARGS), bad_flag_result
REAL arg_1(strdf,mem1lox:mem1hix, mem1loy:mem1hiy,
. mem1loz:mem1hiz, mem1lot:mem1hit)
REAL result(memreslox:memreshix, memresloy:memreshiy,
. memresloz:memreshiz, memreslot:memreshit)
* After initialization, the 'res_' arrays contain indexing information
* for the result axes. The 'arg_' arrays will contain the indexing
* information for each variable's axes.
INTEGER res_lo_ss(4), res_hi_ss(4), res_incr(4)
INTEGER arg_lo_ss(4,EF_MAX_ARGS), arg_hi_ss(4,EF_MAX_ARGS),
. arg_incr(4,EF_MAX_ARGS)
* **********************************************************************
* USER CONFIGURABLE PORTION |
* |
* V
INTEGER i, j, k, l
INTEGER i1, j1, k1, l1
INTEGER atype, iarg, slen
CHARACTER*100 errmsg
CALL ef_get_res_subscripts(id, res_lo_ss, res_hi_ss, res_incr)
CALL ef_get_arg_subscripts(id, arg_lo_ss, arg_hi_ss, arg_incr)
CALL ef_get_bad_flags(id, bad_flag, bad_flag_result)
CALL ef_get_arg_type (id, 1, atype)
IF (atype .NE. STRING_ARG) THEN
errmsg = 'must call with string argument'
GO TO 5000
ENDIF
iarg = 1
i1 = arg_lo_ss(X_AXIS,ARG1)
DO 400 i=res_lo_ss(X_AXIS), res_hi_ss(X_AXIS)
j1 = arg_lo_ss(Y_AXIS,ARG1)
DO 300 j=res_lo_ss(Y_AXIS), res_hi_ss(Y_AXIS)
k1 = arg_lo_ss(Z_AXIS,ARG1)
DO 200 k=res_lo_ss(Z_AXIS), res_hi_ss(Z_AXIS)
l1 = arg_lo_ss(T_AXIS,ARG1)
DO 100 l=res_lo_ss(T_AXIS), res_hi_ss(T_AXIS)
CALL EF_GET_STRING_ARG_ELEMENT_LEN (id, ARG1, arg_1,
. i1,j1,k1,l1, slen)
result(i,j,k,l) = slen
l1 = l1 + arg_incr(T_AXIS,ARG1)
100 CONTINUE
k1 = k1 + arg_incr(Z_AXIS,ARG1)
200 CONTINUE
j1 = j1 + arg_incr(Y_AXIS,ARG1)
300 CONTINUE
i1 = i1 + arg_incr(X_AXIS,ARG1)
400 CONTINUE
RETURN
5000 CALL EF_BAIL_OUT(id,errmsg)
RETURN
END
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