Re: getting 'clear' to work in Emacs shell
On 18.10.2010 16:53, Jeff Rancier wrote: GNU Emacs 21.3.1 (i386-msvc-nt5.1.2600) of 2003-03-27 on buffy GNU bash, version 3.2.51(24)-release (i686-pc-cygwin) CYGWIN_NT-5.1 1.7.7(0.230/5/3) 2010-08-31 09:58 Microsoft Windows XP Pro - Version 2002, SP3 The 'clear' work's in a Cygwin Bash session, c106...@usliny2r86krp8 ~ $ alias clear alias clear='cat ~/.cls' c106...@usliny2r86krp8 ~ $ less .cls ESC[2J .cls (END) But doesn't within Emacs: C-z runs the command shell which is an interactive compiled Lisp function in `shell'. (shelloptional BUFFER) All I get within an Emacs shell session is the following, without clearing the screen. Is there some envionment variable I need to set here? bash-3.2$ clear [2J bash-3.2$ As I understand you run M-x shell and type 'clear RET' and expect that Emacs buffer cleared and contain only new prompt. shell-mode does not designed to work as terminal. Try use M-x term witch try emulate terminal behavior (thus allow run ncurses apps). I run Emacs in 'mintty', type M-x term, I was asked for shell, select default '/bin/sh', type RET and get prompt. Under prompt type 'ls', get list of file, type 'clear', get error sh-3.2$ clear 'eterm-color': unknown terminal type next type 'export TERM=xterm RET' and 'clear'. I get 'sh-3.2$' prompt and all previous output cleared. As I understand that is you want. shell-mode does not understand terminal ESC sequences. For example there exist special functions: ansi-color-for-comint-mode-on ansi-color-for-comint-mode-off When you type in shell-mode 'ls --color' with ansi-color-for-comint-mode-off you get such output: ^[[0m^[[01;34mApplication Data^[[0m ^[[01;34mNetHood^[[0m ^[[01;32mntuser.ini^[[0m ^[[01;34mSendTo^[[0m \ ^[[01;34mМои документы^[[0m When you type in shell-mode 'ls --color' with ansi-color-for-comint-mode-on you get colorized output like in terminal: Application Data NetHood ntuser.ini SendToМои документы -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Re: getting 'clear' to work in Emacs shell
On 19.10.2010 11:55, Oleksandr Gavenko wrote: shell-mode does not understand terminal ESC sequences. For example there exist special functions: ansi-color-for-comint-mode-on ansi-color-for-comint-mode-off I want say that some useful terminal ESC sequences Emacs shell-mode can handle properly. Other like generated by clear is not. But in shell-mode Emacs set TERM=dumb, from manual for 'clear' it uses terminfo db, so must not generate any output. So or your terminfo db damaged or you have invalid TERM env var in shell-mode (for example it can be set in ~/.bashrc). -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Re: getting 'clear' to work in Emacs shell
On 10/18/2010 9:53 AM, Jeff Rancier wrote: GNU Emacs 21.3.1 (i386-msvc-nt5.1.2600) of 2003-03-27 on buffy GNU bash, version 3.2.51(24)-release (i686-pc-cygwin) CYGWIN_NT-5.1 1.7.7(0.230/5/3) 2010-08-31 09:58 Microsoft Windows XP Pro - Version 2002, SP3 The 'clear' work's in a Cygwin Bash session, c106...@usliny2r86krp8 ~ $ alias clear alias clear='cat ~/.cls' c106...@usliny2r86krp8 ~ $ less .cls ESC[2J .cls (END) But doesn't within Emacs: C-z runs the command shell which is an interactive compiled Lisp function in `shell'. (shelloptional BUFFER) All I get within an Emacs shell session is the following, without clearing the screen. Is there some envionment variable I need to set here? bash-3.2$ clear [2J bash-3.2$ I'm not sure what you're expecting here. Do you want emacs to delete what's in the *shell* buffer? Or just scroll it so that nothing is visible but the prompt? FWIW, typing 'clear' in an emacs shell buffer under Linux doesn't have any visible effect either. (Here it runs /usr/bin/clear.) So I don't think this has anything to do with Cygwin. Ken Ken -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
