A large part of HP PE/SolidDesigner’s user interface is written in
Common Lisp. Common Lisp is also used as a user-accessible extension
language.
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'355)6432(-2+ 73 7,) 6<27%; (-%+5%1 3* -+ (defaction simple_exit
(flag)
; local variable
(; state descriptions
(start nil
“Terminate PE/SolidDesigner?”
nil
(:yes (setq flag t) answer-yes end)
(:no
(setq flag nil) answer-no end)
(otherwise (display_error “Enter either :YES or :NO.”) nil start))
User Interface
(end (do-it)
nil
nil))
Links
(IGES, STEP,
...)
K2
(; local functions
Frame
Advanced
Blending
HCL
DSM
PPG
Advanced Local
Operations
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(do-it ()
(when flag
(quit)))))
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simple_exit
:YES
;; exit from action routine
(return))))))
:NO
(a)
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&+#.1)4
:YES
set flag = t
issue prompt
start
wait for
input
end
:NO
set flag = nil
other input
issue error message
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;; Declarations of some external functions, for more efficient calling
(proclaim ’(function get-parameter (t t) t))
(proclaim ’(function match-otherwise (t) t))
(proclaim ’(function trigger-action-state-transition-event (t &optional t)
t))
;; Transformed action routine
(defun simple_exit (&rest argument-list &aux input)
(let (flag)
;; local variable
(labels ((do-it ()
;; local function
(when flag
(quit))))
•
(block nil
(tagbody
•
;; label for state “start”
1
;; prompting in state “start”
(setq input (get-parameter argument-list “Terminate HP PE/
SolidDesigner?”))
;; pattern matching in state “start”
(cond ((equal input :yes)
(setq flag t) ;; action taken
(trigger-action-state-transition-event ’answer-yes)
(go 0))
;; transition to “end” state
((equal input :no)
(setq flag nil) ;; action taken
(trigger-action-state-transition-event ’answer-no)
(go 0))
;; transition to “end” state
((match-otherwise input)
(display_error “Enter either :YES or :NO.”)
(go 1)))
•
;; transition to “start” state
;; label for state ”end”
0
;; initial action for state “end”
(do-it)
•
•
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// Header file declaring standard Lisp data structures and functions
// (for example, LOBJP is the type of a generic pointer-to-Lisp-object)
#include <cmpinclude.h>
// Declarations for the compiled code (normally written to a separate file,
// included here for clarity)
static void L1(...);
static void L2(LOBJP*);
// Functions defined in this file
%51$'3 '8.'55=#%-#3& 1630#.
static char *Cstart;
static int Csize;
static LOBJP Cdata;
static LOBJP VV[14];
// Data for communication with the Lisp
// loader
if(!(equal((V2),VV[1]))){
// First clause of COND construct
goto T8;
}
base[1]= Ct
// (SETQ FLAG T)
(void)((*(LnkLI9))(1,VV[2])); // (TRIGGER-...-EVENT ’ANSWER-YES)
goto T4;
// (GO 0)
T8:;
// Second clause of COND construct
if(!(equal((V2),VV[3]))){
goto T14;
}
base[1]= Cnil;
// (SETQ FLAG NIL)
(void)((*(LnkLI9))(1,VV[4]));
// (TRIGGER-...-EVENT ’ANSWER-NO)
goto T4;
// (GO 0)
T14:;
// Third clause of COND construct
if(((*(LnkLI10))((V2)))==Cnil){
goto T4;
}
base[2]= VV[5];
// (DISPLAY-ERROR “...”)
vs_top=(vs_base=base+2)+1;
(void) (*Lnk11)();
vs_top=sup;
goto T3;
// (GO 1)
T4:;
// Label “0” in TAGBODY
vs_base=vs_top;
// Call (DO-IT), passing a pointer to
L2(base);
// the lexical variables of SIMPLE_EXIT
vs_top=sup;
base[2]= Cnil;
// Return from SIMPLE_EXIT
vs_top=(vs_base=base+2)+1;
return;
}
}
// Run-time Lisp objects
static void LnkT13() ;
// Links to external Lisp functions
static void (*Lnk13)() = LnkT13;
// (see below for an explanation)
static void LnkT11() ;
static void (*Lnk11)() = LnkT11;
static LOBJP LnkTLI10(LOBJP ) ;
static LOBJP (*LnkLI10)(LOBJP ) = LnkTLI10;
static LOBJP LnkTLI9(int narg, ...) ;
static LOBJP (*LnkLI9)(int narg, ...) = LnkTLI9;
static LOBJP LnkTLI8(LOBJP , LOBJP ) ;
static LOBJP (*LnkLI8)(LOBJP , LOBJP ) = LnkTLI8;
// Initialization function, called immediately after the file is loaded
void example_initialize(char *start, int size, LOBJP data)
{
// Reserve space on the Lisp stack
register LOBJP* base=vs_top;
register LOBJP* sup=base+0;
vs_top=sup;
vs_check;
// Store data supplied by the loader, including Lisp objects
// that were extracted from the original source code and that
// will be needed at run-time (e.g., strings and symbols).
Cstart=start;
Csize=size;
Cdata=data;
set_VV_data(VV,14,data,start,size);
}
// Compiled local function DO-IT
// Link the compiled function “L1” to the Lisp symbol stored in VV[6],
// which is ”SIMPLE_EXIT”.
MFnew(VV[6],(void(*)())L1,data);//
// Restore Lisp stack
vs_top=vs_base_mod=base;
}
// Compiled function SIMPLE_EXIT
static void L1(...)
{
register LOBJP*base=vs_base;
register LOBJP*sup=base+3;
vs_check;
{ LOBJP V1;
// Reserve space on the Lisp stack
// Fetch ARGUMENT-LIST from the Lisp
// stack
vs_top[0]=Cnil;
{ LOBJP *p=vs_top;
for(;p>vs_base;p--)p[-1]=MMcons(p[-1],p[0]);
}
V1=(base[0]);
vs_top=sup;
{ LOBJP V2;
// Set up variables INPUT and FLAG
V2= Cnil;
base[1]= Cnil;
T3:;
// Label “1” in TAGBODY
V2= (*(LnkLI8))((V1),VV[0]); // (GET-PARAMETER ARGUMENT-LIST “...”)
static void L2(LOBJP*base0)
{
register LOBJP*base=vs_base;
register LOBJP*sup=base+1;
vs_check;
vs_top=sup;
if((base0[1])==Cnil){
goto T26;
}
vs_base=vs_top;
(void) (*Lnk13)();
return;
T26:;
base[0]= Cnil;
vs_top=(vs_base=base+0)+1;
return;
}
// Reserve space on the Lisp stack
// Condition: lexical variable FLAG
// (QUIT)
// Return from DO-IT
// Links to external functions. These functions are called indirectly, via
// C++ function pointers. At the first call, the corresponding compiled
// function is looked up and stored in the function pointer, thus avoid// ing the Lisp calling overhead on subsequent calls.
static void LnkT13 ()
{ // QUIT; called via normal Lisp calling conventions
call_or_link(VV[13],(int *)&Lnk13);
}
static void LnkT11()
{ // DISPLAY-ERROR; called via normal Lisp calling conventions
call_or_link(VV[11],(int *)&Lnk11);
}
static LOBJP LnkTLI10(LOBJP arg0)
{ // MATCH-OTHERWISE; declared to take exactly one parameter, which
// can be passed without using the Lisp stack.
return(LOBJP)call_fproc(VV[10],(int*)&LnkLI10,1,arg0);
}
static LOBJP LnkTLI9(int narg, ...)
{ // TRIGGER-ACTION-STATE-TRANSITION-EVENT; declared to take one
// fixed and one optional parameter, which can be passed without using
// the Lisp stack.
va_list ap;
va_start(ap, narg);
LOBJP result=(LOBJP)call_vproc(VV[9],(int*)&LnkLI9,narg,ap);
va_end(ap);
return result;
}
static LOBJP LnkTLI8(LOBJP arg0, LOBJP arg1)
{ // GET-PARAMETER; declared to take exactly two parameters, which
// can be passed without using the Lisp stack.
return(LOBJP)call_fproc(VV[8],(int*)&LnkLI8,2,arg0,arg1);
}
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