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74 lines
1.9 KiB
VimL
74 lines
1.9 KiB
VimL
" Vim indent file
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" Language: bst
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" Author: Tim Pope <vimNOSPAM@tpope.info>
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" Last Change: 2022 Mar 15
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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 indentexpr=GetBstIndent(v:lnum)
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setlocal cinkeys&
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setlocal cinkeys-=0#
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setlocal indentkeys&
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let b:undo_indent = 'setlocal indentexpr< cinkeys< indentkeys<'
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" Only define the function once.
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if exists("*GetBstIndent")
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finish
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endif
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function! s:prevgood(lnum)
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" Find a non-blank line above the current line.
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" Skip over comments.
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let lnum = a:lnum
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while lnum > 0
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let lnum = prevnonblank(lnum - 1)
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if getline(lnum) !~ '^\s*%.*$'
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break
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endif
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endwhile
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return lnum
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endfunction
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function! s:strip(lnum)
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let line = getline(a:lnum)
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let line = substitute(line,'"[^"]*"','""','g')
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let line = substitute(line,'%.*','','')
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let line = substitute(line,'^\s\+','','')
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return line
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endfunction
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function! s:count(string,char)
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let str = substitute(a:string,'[^'.a:char.']','','g')
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return strlen(str)
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endfunction
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function! GetBstIndent(lnum) abort
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if a:lnum == 1
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return 0
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endif
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let lnum = s:prevgood(a:lnum)
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if lnum <= 0
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return indent(a:lnum - 1)
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endif
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let line = s:strip(lnum)
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let cline = s:strip(a:lnum)
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if cline =~ '^}' && exists("b:current_syntax")
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call cursor(a:lnum,indent(a:lnum))
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if searchpair('{','','}','bW',"synIDattr(synID(line('.'),col('.'),1),'name') =~? 'comment\\|string'")
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if col('.')+1 == col('$')
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return indent('.')
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else
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return virtcol('.')-1
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endif
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endif
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endif
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let fakeline = substitute(line,'^}','','').matchstr(cline,'^}')
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let ind = indent(lnum)
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let ind = ind + shiftwidth() * s:count(line,'{')
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let ind = ind - shiftwidth() * s:count(fakeline,'}')
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return ind
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endfunction
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