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" Vim indent file
" Language: C#
" Maintainer: Nick Jensen <nickspoon@gmail.com>
" Former Maintainers: Aquila Deus
" Johannes Zellner <johannes@zellner.org>
" Last Change: 2018-11-21
" Filenames: *.cs
" License: Vim (see :h license)
" Repository: https://github.com/nickspoons/vim-cs
"
" Only load this indent file when no other was loaded.
if exists('b:did_indent')
finish
endif
let b:did_indent = 1
let s:save_cpo = &cpoptions
set cpoptions&vim
setlocal indentexpr=GetCSIndent(v:lnum)
function! s:IsCompilerDirective(line)
return a:line =~? '^\s*#'
endf
function! s:IsAttributeLine(line)
return a:line =~? '^\s*\[[A-Za-z]' && a:line =~? '\]$'
endf
function! s:FindPreviousNonCompilerDirectiveLine(start_lnum)
for delta in range(0, a:start_lnum)
let lnum = a:start_lnum - delta
let line = getline(lnum)
let is_directive = s:IsCompilerDirective(line)
if !is_directive
return lnum
endif
endfor
return 0
endf
function! GetCSIndent(lnum) abort
" Hit the start of the file, use zero indent.
if a:lnum == 0
return 0
endif
let this_line = getline(a:lnum)
" Compiler directives use zero indent if so configured.
let is_first_col_macro = s:IsCompilerDirective(this_line) && stridx(&l:cinkeys, '0#') >= 0
if is_first_col_macro
return cindent(a:lnum)
endif
let lnum = s:FindPreviousNonCompilerDirectiveLine(a:lnum - 1)
let previous_code_line = getline(lnum)
if s:IsAttributeLine(previous_code_line)
let ind = indent(lnum)
return ind
else
return cindent(a:lnum)
endif
endfunction
let b:undo_indent = 'setlocal indentexpr<'
let &cpoptions = s:save_cpo
unlet s:save_cpo
" vim:et:sw=2:sts=2
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