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Diffstat (limited to 'vim/autoload/detect_indent.vim')
-rw-r--r-- | vim/autoload/detect_indent.vim | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/vim/autoload/detect_indent.vim b/vim/autoload/detect_indent.vim deleted file mode 100644 index 71a43e87..00000000 --- a/vim/autoload/detect_indent.vim +++ /dev/null @@ -1,108 +0,0 @@ -" Numeric comparison function to sort in a Vim v7.0 compatible way -function! s:CompareNumeric(a, b) abort - return a:a > a:b ? 1 : -1 -endfunction - -" Entry point for plugin -function! detect_indent#() abort - - " For spaces, we count both the total space-indented lines, and also the - " count of lines indexed by space count, so that if we need to, we can - " figure out a good 'shiftwidth' setting; for tabs, we just count the - " indented lines, since we won't need to set 'shiftwidth' for that. - " - let tabs = 0 - let spaces = { - \ 'hist': {}, - \ 'total': 0, - \} - - " Figure out how many lines we'll check; cap this to 1,024, or whatever the - " user configured - let total = max([line('$'), get(g:, 'detect_indent_limit', 1024)]) - - " Iterate through the lines - for line in getline(1, total) - - " If there are leading tabs, we'll call this a tab-indented line; bump the - " appropriate count, and skip the rest of the loop. - " - if matchstr(line, '^\t*') !=# '' - let tabs += 1 - continue - endif - - " Figure out count of space indenting; skip to the next line if it's zero - let indent = strlen(matchstr(line, '^ *')) - if indent == 0 - continue - endif - - " Increment the count of space-indented lines - let spaces['total'] += 1 - - " Create a dictionary entry in the histogram for this indent if necessary, - " and increment that counter - " - if !has_key(spaces['hist'], indent) - let spaces['hist'][indent] = 0 - endif - let spaces['hist'][indent] += 1 - - endfor - - " If the value for 'expandtab' as determined by the user's configuration - " matches the expected dominance of space-indented lines over tab-indented - " lines, we're already using the right setting, and we stop here - " - if &expandtab == (spaces['total'] >= tabs) - return - endif - - " If 'expandtab' is set, we need to unset it and switch to pure tab - " indenting; that's straightforward, we just need to make sure 'shiftwidth' - " matches 'tabstop', and that 'softtabstop' is off. - " - if &expandtab - setlocal noexpandtab softtabstop=0 - let &l:shiftwidth = &tabstop - - " If 'expandtab' is not set, we need to set it, and guess an appropriate - " 'shiftwidth'. - else - setlocal expandtab - - " Iterate through the keys of the histogram from smallest to largest. - " We'll accept as our 'shiftwidth' the smallest indent level that - " constitutes more than 5% of the total lines, configurable by the user. - " This is just an heuristic, but it seems to work pretty well. - " - let shiftwidth = 0 - let indents = keys(spaces['hist']) - call map(indents, 'str2nr(v:val)') " Coerce the string keys to numeric - call sort(indents, 's:CompareNumeric') " Force numeric sort - for shiftwidth in indents - if spaces['hist'][shiftwidth] * 100 / spaces['total'] - \ >= get(g:, 'detect_indent_confidence', 5) - break - endif - endfor - - " We have our 'shiftwidth'; set it, with 'softtabstop' set to match - let &l:shiftwidth = shiftwidth - let &l:softtabstop = shiftwidth - - endif - - " Since we just messed with indent settings, stack up a command to revert - " the changes when the indent plugin is unloaded, as if we ourselves were - " a single filetype indent plugin. - " - let undo_indent = 'setlocal expandtab< shiftwidth< softtabstop<' - if exists('b:undo_indent') - let b:undo_indent .= '|' . undo_indent - else - let b:undo_indent = undo_indent - endif - -endfunction |