On 21/07/2017 17:07, Boris Veytsman wrote: > JW> Date: Fri, 21 Jul 2017 08:59:33 +0100 > JW> From: Joseph Wright <[log in to unmask]> > > > JW> In the latest CTAN update, \bool_if:n(TF) has been made *greedy*: > JW> \bool_lazy_... functions are available for lazy evaluation. (The latter > JW> have a different input syntax which does not suffer from the issue that > JW> affects \bool_if:n(TF).) Any code which still assumes lazy evaluation > JW> for \bool_if:n(TF) will therefore need adjustment. > > Would not it be a little gentler to the developers to keep > \bool_if... lazy and introduce a new family \bool_greedy...? The problem would then have remained: there are certain forms of input which with a lazy \bool_if:n(TF) break the parsing and lead to low-level errors. Having a permanently-broken \bool_if:n(TF) was on-balance not something we felt was the best solution. Joseph