46 lines
No EOL
1.2 KiB
C
46 lines
No EOL
1.2 KiB
C
#include <stdio.h>
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#include "environment.h"
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#include "io.h"
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void flval_expr_print(FILE* stream, lval* v, char open, char close) {
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putchar(open);
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for (int i = 0; i < v->count; i++) {
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// Print value contained within
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flval_print(stream, v->cell[i]);
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// Put a trailing whitespace unless its the last element
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if (i != (v->count - 1)) {
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putchar(' ');
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}
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}
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putchar(close);
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}
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void flval_print(FILE* stream, lval* v) {
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switch (v->type) {
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// If it's an integer, then print it out
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case LVAL_LONG: fprintf(stream, "%li", v->data.num); break;
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case LVAL_DOUBLE: fprintf(stream, "%lf", v->data.dec); break;
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case LVAL_ERR: fprintf(stream, "Error: %s", v->data.err); break;
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case LVAL_SYM: fprintf(stream, "%s", v->data.sym); break;
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case LVAL_SEXPR: flval_expr_print(stream, v, '(', ')'); break;
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case LVAL_QEXPR: flval_expr_print(stream, v, '{', '}'); break;
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case LVAL_FUN:
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if (v->builtin) {
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fprintf(stream, "<function>");
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} else {
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fprintf(stream, "(\\ "); flval_print(stream, v->formals);
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fprintf(stream, " "); flval_print(stream, v->body); fprintf(stream, ")");
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} break;
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}
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}
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void lval_print(lval* v) { flval_print(stdout, v); }
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void lval_println(lval* v) { lval_print(v); putchar('\n'); } |