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https://github.com/neovim/neovim.git
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69 lines
1.6 KiB
VimL
69 lines
1.6 KiB
VimL
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" PostScript indent file
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" Language: PostScript
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" Maintainer: Mike Williams <mrw@netcomuk.co.uk>
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" Last Change: 2nd July 2001
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"
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" Only load this indent file when no other was loaded.
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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=PostscrIndentGet(v:lnum)
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setlocal indentkeys+=0],0=>>,0=%%,0=end,0=restore,0=grestore indentkeys-=:,0#,e
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" Catch multiple instantiations
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if exists("*PostscrIndentGet")
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finish
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endif
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function! PostscrIndentGet(lnum)
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" Find a non-empty non-comment line above the current line.
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" Note: ignores DSC comments as well!
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let lnum = a:lnum - 1
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while lnum != 0
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let lnum = prevnonblank(lnum)
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if getline(lnum) !~ '^\s*%.*$'
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break
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endif
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let lnum = lnum - 1
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endwhile
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" Hit the start of the file, use user indent.
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if lnum == 0
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return -1
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endif
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" Start with the indent of the previous line
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let ind = indent(lnum)
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let pline = getline(lnum)
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" Indent for dicts, arrays, and saves with possible trailing comment
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if pline =~ '\(begin\|<<\|g\=save\|{\|[\)\s*\(%.*\)\=$'
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let ind = ind + &sw
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endif
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" Remove indent for popped dicts, and restores.
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if pline =~ '\(end\|g\=restore\)\s*$'
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let ind = ind - &sw
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" Else handle immediate dedents of dicts, restores, and arrays.
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elseif getline(a:lnum) =~ '\(end\|>>\|g\=restore\|}\|]\)'
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let ind = ind - &sw
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" Else handle DSC comments - always start of line.
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elseif getline(a:lnum) =~ '^\s*%%'
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let ind = 0
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endif
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" For now catch excessive left indents if they occur.
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if ind < 0
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let ind = -1
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endif
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return ind
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endfunction
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" vim:sw=2
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