On Tue, Jun 4, 2013 at 7:35 PM, Ramkumar Ramachandra <artag...@gmail.com> wrote:
> +static unsigned int get_atom_width(struct format_one_atom_context *ctx,
> + const char *start, const char *end)
> +{
> + struct strbuf sb = STRBUF_INIT;
> + int i, atom = parse_atom(start, end);
> + unsigned int len = 0, sb_len;
> + for (i = 0; i < ctx->maxcount; i++) {
> + print_value(&sb, ctx->refs[i], atom, ctx->quote_style);
> + sb_len = utf8_strnwidth(sb.buf, sb.len, 1);
> + if (sb_len > len)
> + len = sb_len;
> + strbuf_reset(&sb);
> + }
> + strbuf_release(&sb);
> + return len;
> +}
> +
I mentioned it before and I do it again. This is not optimal. We
should cache the result of get_atom_width() after the first
calculation. I haven't done it yet because I'm still not sure if it's
worth supporting %<(*)%non-atom at this stage. Caching for atoms only
is much easier because atom is indexed. But I guess it's ok in this
shape unless you run this over hundreds of refs.
--
Duy
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