Replying to the toybox list because I still have to boot a VM to log into patreon to work around their website's css bug.
On 1/13/22 7:13 AM, Thomas Blankenhorn commented on your post https://www.patreon.com/posts/instructional-61084697 > PS, on a tangent: I like how nicely the toybox shell is coming along. It has > now > progressed to the point where I can enter practically any script that's short > enough to reasonably enter at the interactive prompt. Now I'm looking forward > to > the completion of your tty library and the history and command-line editing > that > depend on it. These are the features I currently miss the most. By contrast, > sShell built-ins, prcontrol-flow, process control etc are no longer the > limiting > factorof usability (by me). Nice work. Thanks again! Thanks. Glad you like it. :) I've started trying some existing bash scripts with toysh, and the limiting factor for running glibc's /usr/bin/ldd (which is a bash script, yes starting with #!/bin/bash so won't run on a system without bash installed) is that my case logic doesn't understand multiline targets, so: -d | --d | --da | --dat | --data | --data- | --data-r | --data-re | \ --data-rel | --data-relo | --data-reloc | --data-relocs) confuses it. It _shouldn't_ because of the \ but I'm missing a curve somewhere. Also, that kind of thing REALLY highlights the need for the shell to have some variant of: int prefix_match(char *str, char *fullstr, int min) { char *a = str; return strstart(&a, fullstr) && a-str>min && !*a; } if (prefix_match(str, "--data-relocs")) printf("It's --data-relocs\n"); Easy enough to do in toybox, not sure how bash is supposed to do it but as usual what gnu did is clearly not it. I mean yeah I could do a shell function with something vaguely like: premat() { for i in {3..${#1}} do [ "" == "${1:$i}" && "${2:1:$i}" == "${1:1:$i}" ] && return 0 done return 1 } But it seems like it would be slow? Eh... There's also a bunch of incomplete features like job control that I have partial implementations of in various trees: $ for i in */.git/..; do (cd $i; git diff toys/pending/sh.c); done 2>/dev/null | diffstat sh.c | 649 +++++++++++++++++++++++++++++++++++++++++-------------------------- 1 file changed, 398 insertions(+), 251 deletions(-) But yes, toysh is to the point where lack of command history is what's limiting _me_ from using it more. So I'm poking at it. But $DAYJOB (since new year's I'm back at https://coresemi.io working on an ASIC tapeout) is eating bandwidth. (Not as much as the last place, but not "days of consecutive focus" territory either...) Rob _______________________________________________ Toybox mailing list Toybox@lists.landley.net http://lists.landley.net/listinfo.cgi/toybox-landley.net
