Stefan Beller <[email protected]> writes:
>
> +static int starts_with_emptyline(const char *recs)
> +{
> + return recs[0] == '\n'; /* CRLF not covered here */
> +}
> +
> +
That's "is-empty-line", not "starts-with" ;-)
> +
> + /*
> + * If a group can be moved back and forth, see if there is an
> + * empty line in the moving space. If there is an empty line,
> + * make sure the last empty line is the end of the group.
> + *
> + * As we shifted the group forward as far as possible, we only
> + * need to shift it back if at all.
> + */
Sounds sensible.
> + if (has_emptyline) {
> + while (ixs > 0 && recs[ixs - 1]->ha == recs[ix - 1]->ha
> &&
> + xdl_recmatch(recs[ixs - 1]->ptr, recs[ixs -
> 1]->size, recs[ix - 1]->ptr, recs[ix - 1]->size, flags) &&
> + !starts_with_emptyline(recs[ix - 1]->ptr)) {
You probably want to wrap the "hash compares equal and recmatch does
say they are the same" into a helper function (to be automatically
inlined by the compiler) to make it more readable here. I think
is-empty is a lot cheaper than the recmatch so that should probably
be done earlier in the && chain.
> + rchg[--ixs] = 1;
> + rchg[--ix] = 0;
> +
> + /*
> + * This change did not join two change groups,
> + * as we did that before already, so there is no
Sorry, cannot quite parse the part before "already".
> + * need to adapt the other-file, i.e.
> + * running
> + * for (; rchg[ixs - 1]; ixs--);
> + * while (rchgo[--ixo]);
> + */
> + }
> + }
> }
>
> return 0;
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