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" Vim indent file
" Language: Apache Thrift
" Maintainer: Yinzuo Jiang <jiangyinzuo@foxmail.com>
" Last Change: 2024/07/29
" Only load this indent file when no other was loaded.
if exists("b:did_indent")
finish
endif
let b:did_indent = 1
setlocal cindent
setlocal indentexpr=GetThriftIndent()
let b:undo_indent = "set cindent< indentexpr<"
" Only define the function once.
if exists("*GetThriftIndent")
finish
endif
let s:keepcpo= &cpo
set cpo&vim
function! SkipThriftBlanksAndComments(startline)
let lnum = a:startline
while lnum > 1
let lnum = prevnonblank(lnum)
if getline(lnum) =~ '\*/\s*$'
while getline(lnum) !~ '/\*' && lnum > 1
let lnum = lnum - 1
endwhile
if getline(lnum) =~ '^\s*/\*'
let lnum = lnum - 1
else
break
endif
elseif getline(lnum) =~ '^\s*\(//\|#\)'
let lnum = lnum - 1
else
break
endif
endwhile
return lnum
endfunction
function GetThriftIndent()
" Thrift is just like C; use the built-in C indenting and then correct a few
" specific cases.
let theIndent = cindent(v:lnum)
" If we're in the middle of a comment then just trust cindent
if getline(v:lnum) =~ '^\s*\*'
return theIndent
endif
let line = substitute(getline(v:lnum), '\(//\|#\).*$', '', '')
let previousNum = SkipThriftBlanksAndComments(v:lnum - 1)
let previous = substitute(getline(previousNum), '\(//\|#\).*$', '', '')
let l:indent = indent(previousNum)
if previous =~ "{" && previous !~ "}"
let l:indent += shiftwidth()
endif
if line =~ "}" && line !~ "{"
let l:indent -= shiftwidth()
endif
return l:indent
endfunction
let &cpo = s:keepcpo
unlet s:keepcpo
" vim: sw=2 sts=2 et
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