Ivan Andrus wrote: > It looks like ipython is printing invalid (or at least unknown to Emacs) > > I got it to ignore them by setting > > (setq ansi-color-drop-regexp > " > \\[\\([ABCDsuK]\\|[12][JK]\\|=[0-9]+[hI]\\|[0-9;]*[HfDnC]\\|\\?[0-9]+[hl]\\|J\\ > <smb://|[12][JK]//|=[0-9]+[hI]//|[0-9;]*[HfDnC]//|//?[0-9]+[hl]//|J//>)") > > There is also a bug in my version of Emacs which causes these eliminated > escape sequences to mess with the use of the start variable in > 'ansi-color-filter-apply'. To make a long story short I changed the > implementation to > > (defun ansi-color-filter-apply (string) > "Filter out all ANSI control sequences from STRING. > > Every call to this function will set and use the buffer-local variable > `ansi-color-context' to save partial escape sequences. This information > will be used for the next call to `ansi-color-apply'. Set > `ansi-color-context' to nil if you don't want this. > > This function can be added to `comint-preoutput-filter-functions'." > (let ((start 0) end result) > ;; if context was saved and is a string, prepend it > (if (cadr ansi-color-context) > (setq string (concat (cadr ansi-color-context) string) > ansi-color-context nil)) > ;; eliminate unrecognized escape sequences > (while (string-match ansi-color-drop-regexp string) > (setq string > (replace-match "" nil nil string))) > ;; find the next escape sequence > (while (setq end (string-match ansi-color-regexp string start)) > (setq result (concat result (substring string start end)) > start (match-end 0))) > ;; save context, add the remainder of the string to the result > (let (fragment) > (if (string-match "\033" string start) > (let ((pos (match-beginning 0))) > (setq fragment (substring string pos) > result (concat result (substring string start pos)))) > (setq result (concat result (substring string start)))) > (setq ansi-color-context (if fragment (list nil fragment)))) > result)) > > and it fixed it for me (I swapped the order of the "eliminate > unrecognized escape sequences" and "find the next escape sequence". I > have filed a bug on it. > > Let me know if that solves the issue. If so, then maybe we can add a > workaround to sage-mode or figure out how to get ipython to stop sending > the control sequences. If not it would be helpful to know what version > of Emacs you’re running.
According to the ticket (see below), he's using "emacs GNU Emacs 24.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.10.7) of 2014-03-07 on lamiak, modified by Debian". -leif > > -Ivan > >> On Aug 11, 2016, at 3:49 PM, 'Martin R' via sage-devel >> <sage-devel@googlegroups.com <mailto:sage-devel@googlegroups.com>> wrote: >> >> This is now https://trac.sagemath.org/ticket/21227 -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
