80 lines
2.3 KiB
VimL
80 lines
2.3 KiB
VimL
" Vim indent file
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" Language: Mathematica
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" Maintainer: Steve Layland <layland@wolfram.com> (Invalid email address)
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" Doug Kearns <dougkearns@gmail.com>
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" Last Change: Sat May 10 18:56:22 CDT 2005
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" 2022 April: b:undo_indent added by Doug Kearns
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" Source: http://vim.sourceforge.net/scripts/script.php?script_id=1274
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" http://members.wolfram.com/layland/vim/indent/mma.vim
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"
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" NOTE:
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" Empty .m files will automatically be presumed to be Matlab files
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" unless you have the following in your .vimrc:
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"
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" let filetype_m="mma"
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"
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" Credits:
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" o steve hacked this out of a random indent file in the Vim 6.1
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" distribution that he no longer remembers...sh.vim? Thanks!
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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=GetMmaIndent()
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setlocal indentkeys+=0[,0],0(,0)
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setlocal nosi "turn off smart indent so we don't over analyze } blocks
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let b:undo_indent = "setl inde< indk< si<"
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if exists("*GetMmaIndent")
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finish
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endif
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function GetMmaIndent()
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" Hit the start of the file, use zero indent.
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if v:lnum == 0
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return 0
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endif
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" Find a non-blank line above the current line.
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let lnum = prevnonblank(v:lnum - 1)
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" use indenting as a base
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let ind = indent(v:lnum)
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let lnum = v:lnum
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" if previous line has an unmatched bracket, or ( indent.
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" doesn't do multiple parens/blocks/etc...
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" also, indent only if this line if this line isn't starting a new
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" block... TODO - fix this with indentkeys?
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if getline(v:lnum-1) =~ '\\\@<!\%(\[[^\]]*\|([^)]*\|{[^}]*\)$' && getline(v:lnum) !~ '\s\+[\[({]'
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let ind = ind+shiftwidth()
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endif
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" if this line had unmatched closing block,
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" indent to the matching opening block
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if getline(v:lnum) =~ '[^[]*]\s*$'
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" move to the closing bracket
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call search(']','bW')
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" and find its partner's indent
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let ind = indent(searchpair('\[','',']','bWn'))
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" same for ( blocks
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elseif getline(v:lnum) =~ '[^(]*)$'
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call search(')','bW')
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let ind = indent(searchpair('(','',')','bWn'))
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" and finally, close { blocks if si ain't already set
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elseif getline(v:lnum) =~ '[^{]*}'
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call search('}','bW')
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let ind = indent(searchpair('{','','}','bWn'))
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endif
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return ind
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endfunction
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