42 lines
697 B
C
42 lines
697 B
C
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#include "lisp.h"
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void writeobj(FILE *ofp, struct cell* op)
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{
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switch(op->type)
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{
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case INT: fprintf(ofp, "%d", op->value); break;
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case CONS:
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{
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fprintf(ofp, "(");
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for(;;)
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{
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writeobj(ofp, op->car);
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if(nil == op->cdr)
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{
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fprintf(ofp, ")");
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break;
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}
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op = op->cdr;
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if(op->type != CONS)
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{
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fprintf(ofp, " . ");
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writeobj(ofp, op);
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fprintf(ofp, ")");
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break;
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}
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fprintf(ofp, " ");
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}
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break;
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}
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case SYM:
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{
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if(nil == op) fprintf(ofp, "()");
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else fprintf(ofp, "%s", op->string);
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break;
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}
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case PRIMOP: fprintf(ofp, "#<PRIMOP>"); break;
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case PROC: fprintf(ofp, "#<PROC>"); break;
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default: exit(1);
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}
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}
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