On Tue, Jun 30, 2020 at 4:18 PM Alex Shinn <xxxxxx@gmail.com> wrote: > > On Tue, Jun 30, 2020 at 5:59 PM Duy Nguyen <xxxxxx@gmail.com> wrote: >> >> >> I think chibi does not follow the srfi here. The document for >> string-cursor->index says " If the argument is already an >> index/cursor, it is returned unchanged. ". So chibi should accept "1" >> and return it. But it throws an error instead. > > > Yes, I missed that. It seems strange. What's next, char->integer > should return its argument if passed an integer? I didn't write the srfi. But I guess we're not going that far. Accepting both indexes and cursors are just to make conversions between them easier. I do find this useful in the functions that take both indexes and cursors. When I need a cursor, I just run the input through string-index->cursor and I get a cursor. The alternative is check if it's an index first, then convert, which works but more code. -- Duy
