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-rw-r--r--runtime/ftplugin/j.vim81
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diff --git a/runtime/ftplugin/j.vim b/runtime/ftplugin/j.vim
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+" Vim filetype plugin
+" Language: J
+" Maintainer: David Bürgin <676c7473@gmail.com>
+" URL: https://github.com/glts/vim-j
+" Last Change: 2015-09-27
+
+if exists('b:did_ftplugin')
+ finish
+endif
+let b:did_ftplugin = 1
+
+let s:save_cpo = &cpo
+set cpo&vim
+
+setlocal iskeyword=48-57,A-Z,a-z,_
+setlocal comments=:NB.
+setlocal commentstring=NB.\ %s
+setlocal formatoptions-=t
+setlocal matchpairs=(:)
+setlocal path-=/usr/include
+
+" Includes. To make the shorthand form "require 'web/cgi'" work, double the
+" last path component. Also strip off leading folder names like "~addons/".
+setlocal include=\\v^\\s*(load\|require)\\s*'\\zs\\f+\\ze'
+setlocal includeexpr=substitute(substitute(tr(v:fname,'\\','/'),'\\v^[^~][^/.]*(/[^/.]+)$','&\\1',''),'\\v^\\~[^/]+/','','')
+setlocal suffixesadd=.ijs
+
+let b:undo_ftplugin = 'setlocal matchpairs< formatoptions< commentstring< comments< iskeyword< path< include< includeexpr< suffixesadd<'
+
+" Section movement with ]] ][ [[ []. The start/end patterns below are amended
+" inside the function in order to avoid matching on the current cursor line.
+let s:sectionstart = '\%(\s*Note\|.\{-}\<\%([0-4]\|13\|noun\|adverb\|conjunction\|verb\|monad\|dyad\)\s\+\%(:\s*0\|def\s\+0\|define\)\)\>.*'
+let s:sectionend = '\s*)\s*'
+
+function! s:SearchSection(end, backwards, visualmode) abort
+ if a:visualmode !=# ''
+ normal! gv
+ endif
+ let l:flags = a:backwards ? 'bsW' : 'sW'
+ if a:end
+ call search('^' . s:sectionend . (a:backwards ? '\n\_.\{-}\%#' : '$'), l:flags)
+ else
+ call search('^' . s:sectionstart . (a:backwards ? '\n\_.\{-}\%#' : '$'), l:flags)
+ endif
+endfunction
+
+noremap <buffer> <silent> ]] :<C-U>call <SID>SearchSection(0, 0, '')<CR>
+xnoremap <buffer> <silent> ]] :<C-U>call <SID>SearchSection(0, 0, visualmode())<CR>
+sunmap <buffer> ]]
+noremap <buffer> <silent> ][ :<C-U>call <SID>SearchSection(1, 0, '')<CR>
+xnoremap <buffer> <silent> ][ :<C-U>call <SID>SearchSection(1, 0, visualmode())<CR>
+sunmap <buffer> ][
+noremap <buffer> <silent> [[ :<C-U>call <SID>SearchSection(0, 1, '')<CR>
+xnoremap <buffer> <silent> [[ :<C-U>call <SID>SearchSection(0, 1, visualmode())<CR>
+sunmap <buffer> [[
+noremap <buffer> <silent> [] :<C-U>call <SID>SearchSection(1, 1, '')<CR>
+xnoremap <buffer> <silent> [] :<C-U>call <SID>SearchSection(1, 1, visualmode())<CR>
+sunmap <buffer> []
+
+let b:undo_ftplugin .= ' | silent! execute "unmap <buffer> ]]"'
+ \ . ' | silent! execute "unmap <buffer> ]["'
+ \ . ' | silent! execute "unmap <buffer> [["'
+ \ . ' | silent! execute "unmap <buffer> []"'
+
+" Browse dialog filter on Windows (see ":help browsefilter")
+if has('gui_win32') && !exists('b:browsefilter')
+ let b:browsefilter = "J Script Files (*.ijs)\t*.ijs\n"
+ \ . "All Files (*.*)\t*.*\n"
+ let b:undo_ftplugin .= ' | unlet! b:browsefilter'
+endif
+
+" Enhanced "%" matching (see ":help matchit")
+if exists('loaded_matchit') && !exists('b:match_words')
+ let b:match_ignorecase = 0
+ let b:match_words = '^\%(\s*Note\|.\{-}\<\%([0-4]\|13\|noun\|adverb\|conjunction\|verb\|monad\|dyad\)\s\+\%(\:\s*0\|def\s\+0\|define\)\)\>:^\s*\:\s*$:^\s*)\s*$'
+ \ . ',\<\%(for\%(_\a\k*\)\=\|if\|select\|try\|whil\%(e\|st\)\)\.:\<\%(case\|catch[dt]\=\|else\%(if\)\=\|fcase\)\.:\<end\.'
+ let b:undo_ftplugin .= ' | unlet! b:match_ignorecase b:match_words'
+endif
+
+let &cpo = s:save_cpo
+unlet s:save_cpo