[kontaxis]

This change adds boolean setting inputlength_countdown. When ON, instead of counting the length of inputline up from zero, it counts down from the maximum length of a contiguous message per RFC 1459, i.e., 512 minus overhead.

The code dynamically determines the overhead given the current nickname, userhost, and channel.

This is useful when the user wants avoid their message being split into two, e.g., because they are over the limit by a word.

Setting inputlength_countdown is OFF by default.

This change also adds an integer setting inputlength_offset. Its value is added to the actual length of inputline. This is useful when other settings affect the final length, e.g., split_line_start or split_line_end. In that case inputlength_offset should be set to account for those additional characters.

As an example, when split_line_end = "> " and split_line_start = " >" then inputlength_offset = 4.

Setting inputlength_offset is 0 by default.

[bw1]

thx