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-rw-r--r--runtime/indent/cs.vim75
1 files changed, 75 insertions, 0 deletions
diff --git a/runtime/indent/cs.vim b/runtime/indent/cs.vim
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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: 2020-03-26
+" License: Vim (see :h license)
+" Repository: https://github.com/nickspoons/vim-cs
+
+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)
+ " Exclude #region and #endregion - these should be indented normally
+ return a:line =~# '^\s*#' && !s:IsRegionDirective(a:line)
+endf
+
+function! s:IsRegionDirective(line)
+ return a:line =~# '^\s*#\s*region' || a:line =~# '^\s*#\s*endregion'
+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)
+ if !s:IsCompilerDirective(line) && !s:IsRegionDirective(line)
+ 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)
+ return indent(lnum)
+ elseif s:IsRegionDirective(this_line)
+ return cindent(lnum)
+ 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