Macvim slow with "set list" and Unicode listchars

[Kevin Burke]

Hi,
I've been investigating a problem with Unicode listchars.

My .vimrc looks like:

"" show line endings
set list
set listchars=tab:▸\ ,eol:¬

When I open a file containing many tab characters, Macvim is extremely slow to scroll - holding down "j" yields a key repeat rate of about once per second.

If I turn off list:

set nolist

Or, use a different tab listchar:

set listchars=tab:+\ ,eol

Scrolling suddenly becomes very fast.

Here is information about my version:

VIM - Vi IMproved 7.3 (2010 Aug 15, compiled Mar 4 2013 10:46:00)
MacOS X (unix) version
Included patches: 1-754
Compiled by ke...@kevin-twilio-macbook.local
Huge version with MacVim GUI. Features included (+) or not (-):
+arabic +autocmd +balloon_eval +browse ++builtin_terms +byte_offset +cindent +clientserver +clipboard +cmdline_compl +cmdline_hist +cmdline_info +comments +conceal +cryptv -cscope +cursorbind +cursorshape +dialog_con_gui +diff +digraphs +dnd -ebcdic +emacs_tags +eval
+ex_extra +extra_search +farsi +file_in_path +find_in_path +float +folding -footer +fork() +fullscreen -gettext -hangul_input +iconv +insert_expand +jumplist +keymap +langmap +libcall +linebreak +lispindent +listcmds +localmap -lua +menu +mksession +modify_fname +mouse
+mouseshape +mouse_dec -mouse_gpm -mouse_jsbterm +mouse_netterm +mouse_sgr -mouse_sysmouse +mouse_urxvt +mouse_xterm +multi_byte +multi_lang -mzscheme +netbeans_intg +odbeditor +path_extra +perl +persistent_undo +postscript +printer +profile +python -python3 +quickfix
+reltime +rightleft +ruby +scrollbind +signs +smartindent -sniff +startuptime +statusline -sun_workshop +syntax +tag_binary +tag_old_static -tag_any_white +tcl +terminfo +termresponse +textobjects +title +toolbar +transparency +user_commands +vertsplit +virtualedit
+visual +visualextra +viminfo +vreplace +wildignore +wildmenu +windows +writebackup -X11 -xfontset +xim -xsmp -xterm_clipboard -xterm_save
system vimrc file: "$VIM/vimrc"
user vimrc file: "$HOME/.vimrc"
user exrc file: "$HOME/.exrc"
system gvimrc file: "$VIM/gvimrc"
user gvimrc file: "$HOME/.gvimrc"
system menu file: "$VIMRUNTIME/menu.vim"
fall-back for $VIM: "/Applications/MacVim.app/Contents/Resources/vim"
Compilation: clang -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_MACVIM -Wall -Wno-unknown-pragmas -pipe -DMACOS_X_UNIX -no-cpp-precomp -g -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1 -I/System/Library/Frameworks/Tcl.framework/Headers -D_REENTRANT=1 -D_THREAD_SAFE=1 -D
_DARWIN_C_SOURCE=1
Linking: clang -L. -L. -L/usr/local/lib -o Vim -framework Cocoa -framework Carbon -lncurses -liconv -framework Cocoa -fstack-protector -L/usr/local/lib -L/System/Library/Perl/5.12/darwin-thread-multi-2level/CORE -lperl -lm -lutil -lc -framework Python
-F/System/Library/Frameworks -framework Tcl -framework CoreFoundation -framework Ruby

I am running on Mountain Lion. Let me know if I can do anything to help debug this issue further.

[björn]

I tried creating a simple file with tabs in it but did not experience
the slowness you mention. Can you please send me a file where the
problem occurs for you so that I have something to test with?

Thanks,
Björn

> --
> --
> You received this message from the "vim_mac" maillist.
> Do not top-post! Type your reply below the text you are replying to.
> For more information, visit http://www.vim.org/maillist.php
>
> ---
> You received this message because you are subscribed to the Google Groups "vim_mac" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to vim_mac+u...@googlegroups.com.
> For more options, visit https://groups.google.com/groups/opt_out.
>
>

[Yuma Antoine Decaux]

Hi all,

For those working on the project, i wanted to know where i could start figuring out how to make vimac accessible. Considering it's a coco application, can i assume that some of the interface can be using apple's appkit framework, or any other apple framework for that matter?

Any pointers to how i can contribute greatly appreciated.

Best regards,

Yuma 

"Light has no value without darkness"

Mob: +61 (0)410732547

Skype: Shainobi1

twitter: http://www.twitter.com/triple7

This message is protected by article 4-210 of a certain book of laws but you don't have to worry about privacy issues if you are the intended recipient. However, if any freakish circumstance such as ip sniffing, honey pot open relay servers or an honest mistake caused a transmission error, please advise the sender and throw your laptop into a bubble bath to avoid all illicit data retention.

On 29/05/2013, at 11:11 PM, François-Pierre Bouchard <fpbou...@gmail.com> wrote:

I had the same issue with a couple of fonts (Consolas, Source Code Pro) and I got rid of the issue by disabling the Core Text Renderer in the Advanced preferences.

[björn]

On Wed, Mar 13, 2013 at 11:16 PM, Kevin Burke wrote:
> I've been investigating a problem with Unicode listchars.
>
> My .vimrc looks like:
>
> "" show line endings
> set list
> set listchars=tab:▸\ ,eol:¬
>
> When I open a file containing many tab characters, Macvim is extremely slow to scroll - holding down "j" yields a key repeat rate of about once per second.
>
> If I turn off list:
>
> set nolist
>
> Or, use a different tab listchar:
>
> set listchars=tab:+\ ,eol
>
> Scrolling suddenly becomes very fast.

I have pushed a fix for this now. It was caused by a font lookup API
call which for some reason is super-slow on Mountain Lion whereas on
Snow Leopard it was fast. (That is also why I couldn't reproduce to
begin with.)

Björn