Vim Tips Wiki - New pages [en]

Python script utf8 encoding

82.66.217.91 — Sun, 17 Mar 2013 16:54:51 GMT

82.66.217.91: Created page with "When doing python scripts with vim, one can encounter really easily the following error, when giving utf-8 encoded strings from python to vim: <pre> :py print u'echo "\u2026"..."

When doing python scripts with vim, one can encounter really easily the following error, when giving utf-8 encoded strings from python to vim:

<pre>
:py print u'echo "\u2026"'
Traceback (most recent call last):
File "<string>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\u2026' in
position 6: ordinal not in range(128)
</pre>

From a [https://groups.google.com/forum/?fromgroups=#!searchin/vim_use/python$20utf-8/vim_use/XXVGOuPkszQ/K6LmCqM2GKAJ vim mailing list's post], a solution exists that just solves this issue:

<pre>
python << EOS
uniStr = u"\u2026"
str = uniStr.encode( vim.eval("&encoding") )
print str
EOS
</pre>

or the following one liner:

<pre>
:py print u"\u2026".encode( vim.eval("&encoding") )
</pre>

Don't hesitate reading the whole thread to understand better how vim deals with encoding, and also read :he encoding
[[Category:Python]]
[[Category:Scripting]]
[[Category:Utf8]]

Automatic session restore in git directories

131.181.251.21 — Tue, 05 Feb 2013 22:18:29 GMT

131.181.251.21: Created page with "300px 300px Daily I need to switch between different [http://git-scm.com/ git] projects. This script automatically..."

[[File:Placeholder|video|right|300px]] [[File:Placeholder|right|300px]]
Daily I need to switch between different [http://git-scm.com/ git] projects. This script automatically saves vim sessions per git directory.

== Usage ==
* Starting vim with no filename argument in a git directory will load a previously stored session if one exists.
* Exiting vim (with no filename argument given at invocation) in a git directory will store the current session.
* Starting vim with a filename argument doesn't restore nor save a session.

== Caveats ==
* <code>$HOME/.vim/sessions</code> must exist.

== Script ==
<pre>
function! FindProjectName()
let s:name = getcwd()
if !isdirectory(".git")
let s:name = substitute(finddir(".git", ".;"), "/.git", "", "")
end

if s:name != ""
let s:name = matchstr(s:name, ".*", strridx(s:name, "/") + 1)
end

return s:name
endfunction

" Sessions only restored if we start vim without args.
function! RestoreSession(name)
if a:name != ""
if filereadable($HOME . "/.vim/sessions/" . a:name)
execute 'source ' . $HOME . "/.vim/sessions/" . a:name
end
end
endfunction

" Sessions only saved if we start vim without args.
function! SaveSession(name)
if a:name != ""
execute 'mksession! ' . $HOME . '/.vim/sessions/' . a:name
end
endfunction

"
" Restore and save sessions.
"
if argc() == 0
autocmd VimEnter * call RestoreSession(FindProjectName())
autocmd VimLeave * call SaveSession(FindProjectName())
end
</pre>

Fast buffer navigation by buffer numbers

217.89.139.138 — Tue, 05 Feb 2013 07:36:53 GMT

217.89.139.138: Created page with "300px 300px If you ever become bored by using :b[N]<CR> to switch to the N-th buffer, try this: [N]C-^ in normal m..."

[[File:Placeholder|video|right|300px]] [[File:Placeholder|right|300px]]
If you ever become bored by using :b[N]<CR> to switch to the N-th buffer, try this: [N]C-^ in normal mode.

<C-^> cannot only switch to the previous buffer, but also to all the other buffers, if you prefix the command with the buffer number. For example, instead of using :b1<CR> to switch to the first buffer, you can use 1<C-^> and save a lot of effort and frustration :-)

Happy Hacking!