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Flonum support

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This commit is contained in:
Ekaitz Zarraga 2020-05-23 15:28:48 +02:00
parent 1ea46958a0
commit a2312503c4
1 changed files with 24 additions and 0 deletions
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24
lib/chibi/json.c
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@ -336,6 +336,28 @@ sexp unparse_json_fixnum(sexp ctx, sexp self, const sexp obj) {
}
#define FLONUM_SIGNIFICANT_DIGITS 10
#define FLONUM_EXP_MAX_DIGITS 3
sexp unparse_json_flonum(sexp ctx, sexp self, const sexp obj) {
sexp_gc_var2(res, tmp);
sexp_gc_preserve2(ctx, res, tmp);
res = SEXP_NULL;
char cout[FLONUM_SIGNIFICANT_DIGITS + FLONUM_EXP_MAX_DIGITS + 5];
// Extra space for signs (x2), dot, E and \0
if (sexp_infp(obj) || sexp_nanp(obj)) {
res = sexp_json_unparse_exception(ctx, self, "unable to encode number", obj);
sexp_gc_release2(ctx);
return res;
}
sprintf(cout, "%.*G", FLONUM_SIGNIFICANT_DIGITS, sexp_flonum_value(obj));
res = sexp_c_string(ctx, cout, -1);
sexp_gc_release2(ctx);
return res;
}
sexp unparse_json_string(sexp ctx, sexp self, const sexp obj) {
sexp_gc_var2(res, tmp);
sexp_gc_preserve2(ctx, res, tmp);
@ -510,6 +532,8 @@ sexp unparse_json (sexp ctx, sexp self, sexp obj) {
res = unparse_json_array(ctx, self, obj);
} else if(sexp_fixnump(obj)) {
res = unparse_json_fixnum(ctx, self, obj);
} else if (sexp_flonump(obj)) {
res = unparse_json_flonum(ctx, self, obj); // OTHER TYPES? bignum etc?
} else if (obj == SEXP_FALSE) {
res = sexp_c_string(ctx, "false", -1);
} else if (obj == SEXP_TRUE) {