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propagating exceptions from index->offset translation in substring

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Alex Shinn 2012-07-16 14:11:06 +09:00
parent 065cdf5d5f
commit 254f6dee05
1 changed files with 4 additions and 1 deletions
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5
sexp.c
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@ -1041,8 +1041,11 @@ sexp sexp_utf8_substring_op (sexp ctx, sexp self, sexp_sint_t n, sexp str, sexp
sexp_assert_type(ctx, sexp_stringp, SEXP_STRING, str);
sexp_assert_type(ctx, sexp_fixnump, SEXP_FIXNUM, start);
start = sexp_string_index_to_offset(ctx, self, n, str, start);
if (sexp_fixnump(end))
if (sexp_exceptionp(start)) return start;
if (sexp_fixnump(end)) {
end = sexp_string_index_to_offset(ctx, self, n, str, end);
if (sexp_exceptionp(end)) return end;
}
return sexp_substring_op(ctx, self, n, str, start, end);
}
#endif