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reader: slight adjustments based on change INT -> SMI

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This commit is contained in:
Aryadev Chavali
2026-03-05 20:13:18 +00:00
parent e629b9919e
commit 1998954b56
1 changed files with 7 additions and 8 deletions
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15
src/reader.c
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@@ -20,7 +20,6 @@ const char *read_err_to_cstr(read_err_t err)
return "EOF";
case READ_ERR_UNKNOWN_CHAR:
return "UNKNOWN_CHAR";
break;
case READ_ERR_EXPECTED_CLOSED_BRACE:
return "EXPECTED_CLOSED_BRACE";
case READ_ERR_EXPECTED_CLOSED_SQUARE_BRACKET:
@@ -37,7 +36,7 @@ const char *read_err_to_cstr(read_err_t err)
// Accepted characters for symbols.
static const char *SYMBOL_CHARS =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!$%&*+,-./"
":<=>?@\\^_`{|}~0123456789";
":<=>?@\\^_{|}~0123456789";
// Little predicate using SYMBOL_CHARS
bool is_sym(char c)
@@ -76,9 +75,9 @@ read_err_t read_int(sys_t *sys, stream_t *stream, lisp_t **ret)
return read_sym(sys, stream, ret);
}
if (digits_sv.size > 19)
if (digits_sv.size >= 18)
{
TODO("alisp doesn't support big integers (bigger than 63 bits) yet");
TODO("alisp doesn't support big integers (bigger than 56 bits) yet");
}
i64 n = 0;
@@ -92,7 +91,7 @@ read_err_t read_int(sys_t *sys, stream_t *stream, lisp_t **ret)
// => i > (INT_MAX - digit) / 10
if (n > (INT_MAX - digit) / 10)
{
TODO("alisp doesn't support big integers (bigger than 63 bits) yet");
TODO("alisp doesn't support big integers (bigger than 56 bits) yet");
}
n *= 10;
@@ -111,9 +110,7 @@ read_err_t read_negative(sys_t *sys, stream_t *stream, lisp_t **ret)
read_err_t err = read_int(sys, stream, ret);
if (err)
return err;
i64 n = as_smi(*ret);
n *= -1;
*ret = make_int(n);
*ret = make_int(as_smi(*ret) * -1);
return READ_ERR_OK;
}
else if (is_sym(c) || isspace(c))
@@ -122,7 +119,9 @@ read_err_t read_negative(sys_t *sys, stream_t *stream, lisp_t **ret)
return read_sym(sys, stream, ret);
}
else
{
return READ_ERR_UNKNOWN_CHAR;
}
}
read_err_t read_list(sys_t *sys, stream_t *stream, lisp_t **ret)