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author | Tom Ryder <tom@sanctum.geek.nz> | 2017-11-04 18:21:16 +1300 |
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committer | Tom Ryder <tom@sanctum.geek.nz> | 2017-11-04 18:21:16 +1300 |
commit | 2c20a3c3427befd77029fc37cbda0476f650b681 (patch) | |
tree | 7fa7e1050de2a660e71da37d347786371a53b689 /vim/plugin | |
parent | Add short documentation for new custom plugins (diff) | |
download | dotfiles-2c20a3c3427befd77029fc37cbda0476f650b681.tar.gz dotfiles-2c20a3c3427befd77029fc37cbda0476f650b681.zip |
Rename toggle plugin again, use commands not funcs
This method makes a bit more sense, and amounts to slightly less verbose
mapping commands. It does really on the +user_commands feature being
available, however.
Diffstat (limited to 'vim/plugin')
-rw-r--r-- | vim/plugin/toggle_option_flag.vim | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/vim/plugin/toggle_option_flag.vim b/vim/plugin/toggle_option_flag.vim new file mode 100644 index 00000000..10b4fe7a --- /dev/null +++ b/vim/plugin/toggle_option_flag.vim @@ -0,0 +1,44 @@ +" +" toggle_option_flag.vim: Provide commands to toggle flags in single-char +" grouped options like 'formatoptions', 'shortmess', 'complete' etc. +" +" This will fail hilariously if you try to set e.g. 'switchbuf' with it! +" +" Author: Tom Ryder <tom@sanctum.geek.nz> +" License: Same as Vim itself +" +if has('eval') && has('user_commands') + + " Internal function to do the toggling + function! s:Toggle(option, flag, local) + + " Check for weird options, we don't want to eval() anything funny + if a:option =~# '[^a-z]' + echoerr 'Illegal option name' + return + endif + + " Weird flags, too; should be a single inoffensive char + if a:flag !~# '^[a-z0-9.]$' + echoerr 'Illegal flag' + return + endif + + " Choose which set command to use + let l:set = a:local ? 'setlocal' : 'set' + + " Use eval() to assign -= or += to l:op for the option toggle + " (I couldn't get {curly braces} indirection to work) + let l:op = '' + execute 'let l:op = &'.a:option.' =~# a:flag ? "-=" : "+="' + + " Use eval() to perform the option toggle and then print the value + execute l:set . ' ' . a:option . l:op . a:flag . ' ' . a:option . '?' + + endfunction + + " User commands wrapping around calls to the above function + command! -nargs=+ ToggleOptionFlag :call <SID>Toggle(<f-args>, 0) + command! -nargs=+ ToggleOptionFlagLocal :call <SID>Toggle(<f-args>, 1) + +endif |