Fcalva/chibi-scheme
1
0
Fork 0
mirror of https://github.com/ashinn/chibi-scheme.git synced 2025-05-21 14:49:18 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

gc preserving read errors

Browse source
This commit is contained in:
Alex Shinn 2009-06-28 13:19:12 +09:00
parent cca8727354
commit ab2cbe12f7
1 changed files with 8 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
sexp.c
View file

@ -226,7 +226,8 @@ static sexp sexp_read_error (sexp ctx, char *msg, sexp irritants, sexp port) {
sexp_gc_preserve(ctx, irr, s_irr);
name = (sexp_port_name(port) ? sexp_port_name(port) : SEXP_FALSE);
str = sexp_c_string(ctx, msg, -1);
irr = (sexp_pairp(irritants) ? irritants : sexp_list1(ctx, irritants));
irr = ((sexp_pairp(irritants) || sexp_nullp(irritants))
? irritants : sexp_list1(ctx, irritants));
res = sexp_make_exception(ctx, the_read_error_symbol,
str, irr, SEXP_FALSE, name,
sexp_make_integer(sexp_port_line(port)));
@ -1006,7 +1007,7 @@ sexp sexp_read_float_tail(sexp ctx, sexp in, sexp_sint_t whole) {
: sexp_flonump(exponent) ? sexp_flonum_value(exponent) : 0.0);
} else if ((c!=EOF) && ! is_separator(c))
return sexp_read_error(ctx, "invalid numeric syntax",
sexp_list1(ctx, sexp_make_character(c)), in);
sexp_make_character(c), in);
return sexp_make_flonum(ctx, (whole + res) * pow(10, e));
}
@ -1177,11 +1178,8 @@ sexp sexp_read_raw (sexp ctx, sexp in) {
res = (c1 == 't' ? SEXP_TRUE : SEXP_FALSE);
sexp_push_char(ctx, c2, in);
} else {
res = sexp_read_error(ctx, "invalid syntax #%c%c",
sexp_list2(ctx,
sexp_make_character(c1),
sexp_make_character(c2)),
in);
tmp = sexp_list2(ctx, sexp_make_character(c1), sexp_make_character(c2));
res = sexp_read_error(ctx, "invalid syntax #%c%c", tmp, in);
}
break;
/* case '0': case '1': case '2': case '3': case '4': */
@ -1217,9 +1215,8 @@ sexp sexp_read_raw (sexp ctx, sexp in) {
else if (strcasecmp(str, "tab") == 0)
res = sexp_make_character('\t');
else {
res = sexp_read_error(ctx, "unknown character name",
sexp_list1(ctx, sexp_c_string(ctx, str, -1)),
in);
tmp = sexp_c_string(ctx, str, -1);
res = sexp_read_error(ctx, "unknown character name", tmp, in);
}
}
}
@ -1239,7 +1236,7 @@ sexp sexp_read_raw (sexp ctx, sexp in) {
break;
default:
res = sexp_read_error(ctx, "invalid # syntax",
sexp_list1(ctx, sexp_make_character(c1)), in);
sexp_make_character(c1), in);
}
break;
case '.':