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Add option g:detectindent_never_mix to avoid mixed indent #30

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Add option g:detectindent_never_mix to avoid mixed indent #30

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21 changes: 21 additions & 0 deletions plugin/detectindent.vim
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,10 @@
" " To use preferred values instead of guessing:
" :let g:detectindent_preferred_when_mixed = 1
"
" " To use the first character seen (spaces or tabs) in case of
" " mixed detection:
" :let g:detectindent_never_mix = 1
"
" Requirements: Untested on Vim versions below 6.2

if exists("loaded_detectindent")
Expand Down Expand Up @@ -58,6 +62,7 @@ endfun

fun! <SID>DetectIndent()
let l:has_leading_tabs = 0
let l:leading_tabs_idx = 0
let l:has_leading_spaces = 0
let l:shortest_leading_spaces_run = 0
let l:shortest_leading_spaces_idx = 0
Expand Down Expand Up @@ -106,6 +111,9 @@ fun! <SID>DetectIndent()

if l:leading_char == "\t"
let l:has_leading_tabs = 1
if l:leading_tabs_idx == 0
let l:leading_tabs_idx = l:idx
endif

elseif l:leading_char == " "
" only interested if we don't have a run of spaces followed by a
Expand Down Expand Up @@ -151,6 +159,19 @@ fun! <SID>DetectIndent()
let &l:shiftwidth = l:shortest_leading_spaces_run
let &l:softtabstop = l:shortest_leading_spaces_run

elseif l:has_leading_spaces && l:has_leading_tabs && s:GetValue("detectindent_never_mix")
if l:leading_tabs_idx < l:shortest_leading_spaces_idx
let l:verbose_msg = "Detected tabs before spaces"
setl noexpandtab
let &l:shiftwidth = l:shortest_leading_spaces_run
let &l:tabstop = l:shortest_leading_spaces_run
else
let l:verbose_msg = "Detected spaces before tabs"
setl expandtab
let &l:shiftwidth = l:shortest_leading_spaces_run
let &l:softtabstop = l:shortest_leading_spaces_run
end

elseif l:has_leading_spaces && l:has_leading_tabs && ! s:GetValue("detectindent_preferred_when_mixed")
" spaces and tabs
let l:verbose_msg = "Detected spaces and tabs"
Expand Down