version 1.44, 2005/09/21 23:39:32 |
version 1.45, 2005/09/27 03:00:21 |
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* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* |
* |
* $OpenXM: OpenXM_contrib2/asir2000/parse/eval.c,v 1.43 2005/09/14 02:48:38 noro Exp $ |
* $OpenXM: OpenXM_contrib2/asir2000/parse/eval.c,v 1.44 2005/09/21 23:39:32 noro Exp $ |
*/ |
*/ |
#include <ctype.h> |
#include <ctype.h> |
#include "ca.h" |
#include "ca.h" |
Line 331 pointer eval(FNODE f) |
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Line 331 pointer eval(FNODE f) |
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break; |
break; |
} |
} |
return ( val ); |
return ( val ); |
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} |
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NODE partial_eval_node(NODE n); |
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FNODE partial_eval(FNODE f); |
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FNODE partial_eval(FNODE f) |
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{ |
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FNODE a0,a1,a2; |
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NODE n; |
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pointer val; |
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if ( !f ) |
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return f; |
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switch ( f->id ) { |
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case I_NOT: case I_PAREN: case I_MINUS: |
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case I_CAR: case I_CDR: |
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a0 = partial_eval((FNODE)FA0(f)); |
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return mkfnode(1,f->id,a0); |
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case I_BOP: case I_COP: case I_LOP: |
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a1 = partial_eval((FNODE)FA1(f)); |
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a2 = partial_eval((FNODE)FA2(f)); |
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return mkfnode(3,f->id,FA0(f),a1,a2); |
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case I_AND: case I_OR: |
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a0 = partial_eval((FNODE)FA0(f)); |
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a1 = partial_eval((FNODE)FA1(f)); |
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return mkfnode(2,f->id,a0,a1); |
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/* ternary operators */ |
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case I_CE: |
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a0 = partial_eval((FNODE)FA0(f)); |
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a1 = partial_eval((FNODE)FA1(f)); |
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a2 = partial_eval((FNODE)FA2(f)); |
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return mkfnode(3,f->id,a0,a1,a2); |
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break; |
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/* function */ |
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case I_FUNC: |
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a1 = partial_eval((FNODE)FA1(f)); |
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return mkfnode(2,f->id,FA0(f),a1); |
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case I_LIST: case I_EV: |
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n = partial_eval_node((NODE)FA0(f)); |
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return mkfnode(1,f->id,n); |
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case I_STR: case I_FORMULA: |
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return f; |
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/* program variable */ |
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case I_PVAR: |
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val = eval(f); |
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if ( val && OID((Obj)val) == O_QUOTE ) |
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return partial_eval((FNODE)BDY((QUOTE)val)); |
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else |
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return mkfnode(1,I_FORMULA,val); |
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default: |
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error("partial_eval : not implemented yet"); |
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} |
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} |
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NODE partial_eval_node(NODE n) |
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{ |
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NODE r0,r,t; |
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for ( r0 = 0, t = n; t; t = NEXT(t) ) { |
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NEXTNODE(r0,r); |
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BDY(r) = partial_eval((FNODE)BDY(t)); |
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} |
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if ( r0 ) NEXT(r) = 0; |
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return r0; |
} |
} |
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V searchvar(char *name); |
V searchvar(char *name); |