<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Grzegorz,<div class=""><br class=""></div><div class="">that’s a long list of environments!</div><div class=""><br class=""></div><div class="">I took some time to reproduce the “Ubuntu ssh to CentOS†(and vice versa) using vmware. on two fresh installs of ubuntu and centos, the paren matching worked correctly. On ubuntu, If I resized the window halfway through it would jump backwards to the wrong point and then forwards to the correct point—centos xterm re-flowed the text so this did not happen. This worked with $TERM set to 'xterm' or ‘konsole’ or ‘putty’.</div><div class=""><br class=""></div><div class="">you said earlier:</div><div class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class="">I don't have such environment variables (LINES and COLUMNS) in my system and I don't remember having them on Ubuntu or Red Hat (however I can't double-check that now)<br class=""></blockquote></blockquote></blockquote><br class=""></div><div class="">These variables are set by your terminal in response to resize events and are communicated over ssh as you can read about here: <a href="http://unix.stackexchange.com/a/207802" class="">http://unix.stackexchange.com/a/207802</a></div><div class="">If your system does not have those variables, I would strongly suspect that the nurses library would not function in the way you desire.</div><div class=""><br class=""></div><div class="">At this point I can only wildly speculate about ways your erlang install (or terminfo database, or ncurses library) is broken, and I don’t think you’re really looking for that.</div><div class=""><br class=""></div><div class="">Josh</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On May 15, 2016, at 8:00 AM, Grzegorz Junka <<a href="mailto:list1@gjunka.com" class="">list1@gjunka.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Joshua,<br class=""><br class="">This is what I said, it isn't broken only for me. I saw it being broken on other people's computers as well.<br class=""><br class="">It's unlikely for any scripts to set COLUMNS since I don't see that environment variable being set when running shell.<br class=""><br class="">I am running Konsole on the same system on which I am running Erlang, both on FreeBSD. I don't need to SSH anywhere. But the behaviour was the same no matter from where or to where I was SSH-ing or not (or someone I saw doing it), e.g.:<br class=""><br class="">Windows putty SSH to FreeBSD<br class=""><br class="">Windows putty SSH to Ubuntu<br class=""><br class="">Windows putty SSH to Red Hat<br class=""><br class="">Windows putty SSH to CentOS<br class=""><br class="">Windows xterm cygwin SSH to FreeBSD<br class=""><br class="">Windows xterm cygwin SSH To Ubuntu<br class=""><br class="">Windows xterm cygwin SSH to Red Hat<br class=""><br class="">Windows xterm cygwin SSH to CentOS<br class=""><br class="">FreeBSD xterm SSH to Ubuntu<br class=""><br class="">FreeBSD Konsole SSH to Ubuntu<br class=""><br class="">FreeBSD xterm SSH to FreeBSD<br class=""><br class="">FreeBSD Konsole SSH to Ubuntu<br class=""><br class="">FreeBSD xterm SSH to CentOS<br class=""><br class="">FreeBSD Konsole SSH to CentOS<br class=""><br class="">FreeBSD Konsole and Erlang shell on the same system (no SSH)<br class=""><br class="">FreeBSD xterm end Erlang shell on the same system (no SSH)<br class=""><br class="">Ubuntu SSH to CentOS<br class=""><br class="">It's fair to say that I haven't see a system on which this feature worked fine, I just learned to not type commands that are too long or copy-paste longer commands, and I bet most people who experience it do the same and don't bother complaining. I wonder if maybe this has something to do with escape codes and for example support for 256 colors in the terminal.<br class=""><br class="">Grzegorz<br class=""><br class=""><br class="">On 14/05/2016 22:49, Joshua Barney wrote:<br class=""><blockquote type="cite" class="">It seems unlikely that erlang shell is broken only for you on all these systems.<br class="">Have you checked that your shell scripts are not setting COLUMNS? Perhaps you are ssh-ing from a client that is doing something not quite right?<br class=""><br class="">Sent from my iPhone<br class=""><br class=""><blockquote type="cite" class="">On May 14, 2016, at 6:39 PM, Grzegorz Junka <<a href="mailto:list1@gjunka.com" class="">list1@gjunka.com</a>> wrote:<br class=""><br class=""><br class=""><blockquote type="cite" class="">On 14/05/2016 21:19, Kenneth Lakin wrote:<br class=""><blockquote type="cite" class="">On 05/14/2016 03:32 AM, Grzegorz Junka wrote:<br class="">Fixing my terminal to 80 characters only seems like taken straight from<br class="">the Windows world. I hope Erlang can do better ;)<br class=""></blockquote>If ncurses can't determine your terminal size, then falling back to<br class="">80x24 makes a lot of sense. Do other ncurses-based programs behave<br class="">incorrectly?<br class=""></blockquote>No. Everything else is fine. This problem is not related to my system, as I have seen the same behaviour in Erlang running on FreeBSD, Ubuntu, Red Hat and CentOS in different terminals, like putty, cygwin and Konsole.<br class=""><br class=""><blockquote type="cite" class=""><blockquote type="cite" class="">Is there any way of<br class="">telling the Erlang terminal how wide is my terminal, e.g. an environment<br class="">variable?<br class=""></blockquote>On my system, it looks like the environment variables LINES and COLUMNS<br class="">correspond to the current size of my terminal window. When I set COLUMNS<br class="">to a value that does not match the window's current size, then the<br class="">Erlang shell's paren matching bounces the cursor backwards to the wrong<br class="">place (but back forwards to the right place). Maybe this will be the<br class="">band-aid you need.<br class=""></blockquote>I don't have such environment variables in my system and I don't remember having them on Ubuntu or Red Hat (however I can't double-check that now)<br class=""><br class=""><blockquote type="cite" class="">However, it might be more useful to fix whatever is preventing ncurses<br class="">from determining the terminal size.<br class=""></blockquote>Yeah, and even more useful if the Erlang shell allowed me to disable a feature that isn't really necessary especially if it isn't working correctly.<br class=""><br class=""><br class="">_______________________________________________<br class="">erlang-questions mailing list<br class=""><a href="mailto:erlang-questions@erlang.org" class="">erlang-questions@erlang.org</a><br class="">http://erlang.org/mailman/listinfo/erlang-questions<br class=""></blockquote></blockquote><br class="">_______________________________________________<br class="">erlang-questions mailing list<br class=""><a href="mailto:erlang-questions@erlang.org" class="">erlang-questions@erlang.org</a><br class="">http://erlang.org/mailman/listinfo/erlang-questions<br class=""></div></div></blockquote></div><br class=""></div></body></html>