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Make write/display output bytevectors with hex constants (issue #483)

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Marc Nieper-Wisskirchen 2018-11-06 14:22:38 +01:00
parent 3f9dfb7837
commit f9be5c8d46
2 changed files with 14 additions and 1 deletions
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5
include/chibi/features.h
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@ -568,6 +568,11 @@
#define SEXP_USE_BYTEVECTOR_LITERALS ! SEXP_USE_NO_FEATURES
#endif
#ifndef SEXP_BYTEVECTOR_HEX_LITERALS
#define SEXP_BYTEVECTOR_HEX_LITERALS SEXP_USE_BYTEVECTOR_LITERALS
#endif
#ifndef SEXP_USE_SELF_PARAMETER
#define SEXP_USE_SELF_PARAMETER 1
#endif

10
sexp.c
View file

@ -1884,6 +1884,9 @@ sexp sexp_write_one (sexp ctx, sexp obj, sexp out) {
sexp_sint_t i=0;
#if SEXP_USE_FLONUMS
double f, ftmp;
#endif
#if SEXP_USE_BYTEVECTOR_LITERALS && SEXP_BYTEVECTOR_HEX_LITERALS
char buf[5];
#endif
sexp x, *elts;
char *str=NULL, numbuf[NUMBUF_LEN];
@ -2065,7 +2068,12 @@ sexp sexp_write_one (sexp ctx, sexp obj, sexp out) {
len = sexp_bytes_length(obj);
for (i=0; i<(sexp_sint_t)len; i++) {
if (i!=0) sexp_write_char(ctx, ' ', out);
#if SEXP_BYTEVECTOR_HEX_LITERALS
sprintf(buf, "#x%02hhX", ((unsigned char*) str)[i]);
sexp_write_string(ctx, buf, out);
#else
sexp_write(ctx, sexp_make_fixnum(((unsigned char*)str)[i]), out);
#endif
}
sexp_write_char(ctx, ')', out);
break;
@ -2254,7 +2262,7 @@ sexp sexp_read_string (sexp ctx, sexp in, int sentinel) {
case 'a': c = '\a'; break;
case 'b': c = '\b'; break;
case 'n': c = '\n'; break;
case 'r': c = '\r'; break;
case 'r': c = '\r'; break;
case 't': c = '\t'; break;
case 'x': case 'X':
res = sexp_read_number(ctx, in, 16, 0);