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" Vim indent file
" Language: bst
" Author: Tim Pope <vimNOSPAM@tpope.info>
" $Id: bst.vim,v 1.1 2007/05/05 18:11:12 vimboss Exp $
if exists("b:did_indent")
finish
endif
let b:did_indent = 1
setlocal expandtab
setlocal indentexpr=GetBstIndent(v:lnum)
"setlocal smartindent
setlocal cinkeys&
setlocal cinkeys-=0#
setlocal indentkeys&
"setlocal indentkeys+=0%
" Only define the function once.
if exists("*GetBstIndent")
finish
endif
function! s:prevgood(lnum)
" Find a non-blank line above the current line.
" Skip over comments.
let lnum = a:lnum
while lnum > 0
let lnum = prevnonblank(lnum - 1)
if getline(lnum) !~ '^\s*%.*$'
break
endif
endwhile
return lnum
endfunction
function! s:strip(lnum)
let line = getline(a:lnum)
let line = substitute(line,'"[^"]*"','""','g')
let line = substitute(line,'%.*','','')
let line = substitute(line,'^\s\+','','')
return line
endfunction
function! s:count(string,char)
let str = substitute(a:string,'[^'.a:char.']','','g')
return strlen(str)
endfunction
function! GetBstIndent(lnum) abort
if a:lnum == 1
return 0
endif
let lnum = s:prevgood(a:lnum)
if lnum <= 0
return indent(a:lnum - 1)
endif
let line = s:strip(lnum)
let cline = s:strip(a:lnum)
if cline =~ '^}' && exists("b:current_syntax")
call cursor(a:lnum,indent(a:lnum))
if searchpair('{','','}','bW',"synIDattr(synID(line('.'),col('.'),1),'name') =~? 'comment\\|string'")
if col('.')+1 == col('$')
return indent('.')
else
return virtcol('.')-1
endif
endif
endif
let fakeline = substitute(line,'^}','','').matchstr(cline,'^}')
let ind = indent(lnum)
let ind = ind + &sw * s:count(line,'{')
let ind = ind - &sw * s:count(fakeline,'}')
return ind
endfunction
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