Even if you are not in a `win` window (eg. if you are in an +Error one) you can use Undo. Sometimes Acme doesn't actually put Undo in the tag line, but if you type it out yourself it will still work. Well, at least on p9p Acme, I'm not sure about Plan 9 Acme.
‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On May 9, 2018 5:40 PM, 刘宇宝 <liuyu...@yingmi.cn> wrote: > Great thanks for your idea, file oriented design is very flexible! The prompt > function may be used to automatically backup the output of previous command, > a poor man's undo buffer :-D > > I tried to execute "rc" in Acme, seems Acme always execution command with > /dev/null as stdin, I can't embed an interactive rc session into Acme and > leverage the undo buffer of Acme window. > > > On May 9, 2018, at 10:14 PM, Steve Simon st...@quintile.net wrote: > > > > hi. > > > > i think it is humour of a kind. > > > > i cannot speak for acme but rio has no undo buffer, so what you ask for is > > not possible. > > > > you can save a windows content (including history). e.g. /dev/wsys/11/text > > /tmp (assuming the window you want is number 11, cat /dev/winid to get the > > current windows id) > > > > -Steve > > > > On 9 May 2018, at 11:55, 刘宇宝 liuyu...@yingmi.cn wrote: > > > > > > > I miss much the universal shortcut Ctrl-z on Window and Command-z on > > > > > > > > > > macOS, does Rio and Acme have the equivalent? > > > > > > > > Both the Ctrl key and the z key are fully supported on 9front Systems. > > > > > > > > To remove undesired characters from the screen, the Backspace key is > > > > > > > > also automatically provisioned, free of charge. > > > > > > Wow, is this kind of humor like the picture at the bottom of > > > http://fqa.9front.org/ ? > > > > > > I'm not a troll, I wrote several articles to introduce Plan 9 some days > > > ago, I'm seriously asking :-D > > > > > > Maybe I already got the answer @_@ > > > > > > Thanks, > > > > > > Yubao Liu
