On Fri 03 Feb 2017 14:40, Daniel Llorens <daniel.llor...@bluewin.ch> writes:
> The patch to master (ice-9 boot-9) lets you override the (format) used > internally by the exception printers. Then I rewrite the format string > in user code, see below. It's a bit hacky, maybe someone has a better > solution. > > See also the other patch I've posted to the list to support arrays in > (truncated-print). The patches are independent, but they make each > other useful so to speak. I have a crazy idea :) What about, we just let (ice-9 format) be "format" ? Right now loading (ice-9 format) does a set! to format, as you know, overriding the core binding. This is unnecessary and complicated. I see that using (ice-9 format) only adds 50 KB to the 2828-KB baseline of private dirty memory. Then we can use :@y directly in the format strings and we can avoid all the monkeypatching. There are only a couple instances of calls to scm_simple_format in libguile and they can be replaced, so we don't have C bootstrapping concerns. Guile users calling scm_simple_format would do a pthread_once load to the "format" binding in the root module. In boot-9, we start with a simple boot definition (for boot-time errors) then replace it with (module-ref (resolve-interface '(ice-9 format) 'format)) at the end. Maybe Ludovic has a thought here :) Andy
