mirror of
https://github.com/sheerun/vim-polyglot.git
synced 2025-11-08 11:33:52 -05:00
71 lines
1.5 KiB
VimL
71 lines
1.5 KiB
VimL
if has_key(g:polyglot_is_disabled, 'v')
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finish
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endif
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" Based on the Go identation file.
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"
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" Copyright 2011 The Go Authors. All rights reserved.
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" Use of this source code is governed by a BSD-style
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" license that can be found in the LICENSE file.
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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 nolisp
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setlocal autoindent
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setlocal indentexpr=VlangIndent(v:lnum)
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setlocal indentkeys+=<:>,0=},0=)
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setlocal noexpandtab
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if exists("*VlangIndent")
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finish
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endif
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let s:cpo_save = &cpo
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set cpo&vim
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function! VlangIndent(lnum) abort
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let prevlnum = prevnonblank(a:lnum-1)
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if prevlnum == 0
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return 0
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endif
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let prevl = substitute(getline(prevlnum), '//.*$', '', '')
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let thisl = substitute(getline(a:lnum), '//.*$', '', '')
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let previ = indent(prevlnum)
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let ind = previ
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if prevl =~ '[({]\s*$'
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" previous line opened a block
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let ind += shiftwidth()
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endif
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if prevl =~# '^\s*\(case .*\|default\):$'
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" previous line is part of a switch statement
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let ind += shiftwidth()
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endif
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if thisl =~ '^\s*[)}]'
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" this line closed a block
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let ind -= shiftwidth()
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endif
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" Colons are tricky.
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" We want to outdent if it's part of a switch ("case foo:" or "default:").
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" We ignore trying to deal with jump labels because (a) they're rare, and
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" (b) they're hard to disambiguate from a composite literal key.
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if thisl =~# '^\s*\(case .*\|default\):$'
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let ind -= shiftwidth()
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endif
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return ind
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endfunction
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" restore Vi compatibility settings
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let &cpo = s:cpo_save
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unlet s:cpo_save
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" vim: sw=2 ts=2 et
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