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80 lines
1.6 KiB
VimL
80 lines
1.6 KiB
VimL
" Vim indent file
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" Language: Objective-C
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" Maintainer: Kazunobu Kuriyama <kazunobu.kuriyama@nifty.com>
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" Last Change: 2022 Apr 06
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" Only load this indent file when no other was loaded.
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if exists("b:did_indent")
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finish
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endif
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let b:did_indent = 1
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setlocal cindent
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" Set the function to do the work.
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setlocal indentexpr=GetObjCIndent()
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" To make a colon (:) suggest an indentation other than a goto/switch label,
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setlocal indentkeys-=:
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setlocal indentkeys+=<:>
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let b:undo_indent = "setl cin< inde< indk<"
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" Only define the function once.
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if exists("*GetObjCIndent")
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finish
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endif
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function s:GetWidth(line, regexp)
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let end = matchend(a:line, a:regexp)
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let width = 0
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let i = 0
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while i < end
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if a:line[i] != "\t"
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let width = width + 1
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else
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let width = width + &ts - (width % &ts)
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endif
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let i = i + 1
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endwhile
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return width
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endfunction
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function s:LeadingWhiteSpace(line)
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let end = strlen(a:line)
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let width = 0
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let i = 0
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while i < end
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let char = a:line[i]
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if char != " " && char != "\t"
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break
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endif
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if char != "\t"
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let width = width + 1
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else
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let width = width + &ts - (width % &ts)
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endif
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let i = i + 1
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endwhile
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return width
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endfunction
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function GetObjCIndent()
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let theIndent = cindent(v:lnum)
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let prev_line = getline(v:lnum - 1)
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let cur_line = getline(v:lnum)
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if prev_line !~# ":" || cur_line !~# ":"
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return theIndent
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endif
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if prev_line !~# ";"
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let prev_colon_pos = s:GetWidth(prev_line, ":")
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let delta = s:GetWidth(cur_line, ":") - s:LeadingWhiteSpace(cur_line)
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let theIndent = prev_colon_pos - delta
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endif
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return theIndent
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endfunction
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