/usr/share/vim/vim74/ftplugin/ocaml.vim is in vim-runtime 2:7.4.052-1ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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" Maintainer: David Baelde <firstname.name@ens-lyon.org>
" Mike Leary <leary@nwlink.com>
" Markus Mottl <markus.mottl@gmail.com>
" Pierre Vittet <pierre-vittet@pvittet.com>
" Stefano Zacchiroli <zack@bononia.it>
" Vincent Aravantinos <firstname.name@imag.fr>
" URL: http://www.ocaml.info/vim/ftplugin/ocaml.vim
" Last Change:
" 2013 Jul 26 - load default compiler settings (MM)
" 2013 Jul 24 - removed superfluous efm-setting (MM)
" 2013 Jul 22 - applied fixes supplied by Hirotaka Hamada (MM)
" 2013 Mar 15 - Improved error format (MM)
if exists("b:did_ftplugin")
finish
endif
let b:did_ftplugin=1
" Use standard compiler settings unless user wants otherwise
if !exists("current_compiler")
:compiler ocaml
endif
" some macro
if exists('*fnameescape')
function! s:Fnameescape(s)
return fnameescape(a:s)
endfun
else
function! s:Fnameescape(s)
return escape(a:s," \t\n*?[{`$\\%#'\"|!<")
endfun
endif
" Error handling -- helps moving where the compiler wants you to go
let s:cposet=&cpoptions
set cpo&vim
" Add mappings, unless the user didn't want this.
if !exists("no_plugin_maps") && !exists("no_ocaml_maps")
" (un)commenting
if !hasmapto('<Plug>Comment')
nmap <buffer> <LocalLeader>c <Plug>LUncomOn
xmap <buffer> <LocalLeader>c <Plug>BUncomOn
nmap <buffer> <LocalLeader>C <Plug>LUncomOff
xmap <buffer> <LocalLeader>C <Plug>BUncomOff
endif
nnoremap <buffer> <Plug>LUncomOn gI(* <End> *)<ESC>
nnoremap <buffer> <Plug>LUncomOff :s/^(\* \(.*\) \*)/\1/<CR>:noh<CR>
xnoremap <buffer> <Plug>BUncomOn <ESC>:'<,'><CR>`<O<ESC>0i(*<ESC>`>o<ESC>0i*)<ESC>`<
xnoremap <buffer> <Plug>BUncomOff <ESC>:'<,'><CR>`<dd`>dd`<
nmap <buffer> <LocalLeader>s <Plug>OCamlSwitchEdit
nmap <buffer> <LocalLeader>S <Plug>OCamlSwitchNewWin
nmap <buffer> <LocalLeader>t <Plug>OCamlPrintType
xmap <buffer> <LocalLeader>t <Plug>OCamlPrintType
endif
" Let % jump between structure elements (due to Issac Trotts)
let b:mw = ''
let b:mw = b:mw . ',\<let\>:\<and\>:\(\<in\>\|;;\)'
let b:mw = b:mw . ',\<if\>:\<then\>:\<else\>'
let b:mw = b:mw . ',\<\(for\|while\)\>:\<do\>:\<done\>,'
let b:mw = b:mw . ',\<\(object\|sig\|struct\|begin\)\>:\<end\>'
let b:mw = b:mw . ',\<\(match\|try\)\>:\<with\>'
let b:match_words = b:mw
let b:match_ignorecase=0
" switching between interfaces (.mli) and implementations (.ml)
if !exists("g:did_ocaml_switch")
let g:did_ocaml_switch = 1
nnoremap <Plug>OCamlSwitchEdit :<C-u>call OCaml_switch(0)<CR>
nnoremap <Plug>OCamlSwitchNewWin :<C-u>call OCaml_switch(1)<CR>
fun OCaml_switch(newwin)
if (match(bufname(""), "\\.mli$") >= 0)
let fname = s:Fnameescape(substitute(bufname(""), "\\.mli$", ".ml", ""))
if (a:newwin == 1)
exec "new " . fname
else
exec "arge " . fname
endif
elseif (match(bufname(""), "\\.ml$") >= 0)
let fname = s:Fnameescape(bufname("")) . "i"
if (a:newwin == 1)
exec "new " . fname
else
exec "arge " . fname
endif
endif
endfun
endif
" Folding support
" Get the modeline because folding depends on indentation
let s:s = line2byte(line('.'))+col('.')-1
if search('^\s*(\*:o\?caml:')
let s:modeline = getline(".")
else
let s:modeline = ""
endif
if s:s > 0
exe 'goto' s:s
endif
" Get the indentation params
let s:m = matchstr(s:modeline,'default\s*=\s*\d\+')
if s:m != ""
let s:idef = matchstr(s:m,'\d\+')
elseif exists("g:omlet_indent")
let s:idef = g:omlet_indent
else
let s:idef = 2
endif
let s:m = matchstr(s:modeline,'struct\s*=\s*\d\+')
if s:m != ""
let s:i = matchstr(s:m,'\d\+')
elseif exists("g:omlet_indent_struct")
let s:i = g:omlet_indent_struct
else
let s:i = s:idef
endif
" Set the folding method
if exists("g:ocaml_folding")
setlocal foldmethod=expr
setlocal foldexpr=OMLetFoldLevel(v:lnum)
endif
let b:undo_ftplugin = "setlocal efm< foldmethod< foldexpr<"
\ . "| unlet! b:mw b:match_words b:match_ignorecase"
" - Only definitions below, executed once -------------------------------------
if exists("*OMLetFoldLevel")
finish
endif
function s:topindent(lnum)
let l = a:lnum
while l > 0
if getline(l) =~ '\s*\%(\<struct\>\|\<sig\>\|\<object\>\)'
return indent(l)
endif
let l = l-1
endwhile
return -s:i
endfunction
function OMLetFoldLevel(l)
" This is for not merging blank lines around folds to them
if getline(a:l) !~ '\S'
return -1
endif
" We start folds for modules, classes, and every toplevel definition
if getline(a:l) =~ '^\s*\%(\<val\>\|\<module\>\|\<class\>\|\<type\>\|\<method\>\|\<initializer\>\|\<inherit\>\|\<exception\>\|\<external\>\)'
exe 'return ">' (indent(a:l)/s:i)+1 '"'
endif
" Toplevel let are detected thanks to the indentation
if getline(a:l) =~ '^\s*let\>' && indent(a:l) == s:i+s:topindent(a:l)
exe 'return ">' (indent(a:l)/s:i)+1 '"'
endif
" We close fold on end which are associated to struct, sig or object.
" We use syntax information to do that.
if getline(a:l) =~ '^\s*end\>' && synIDattr(synID(a:l, indent(a:l)+1, 0), "name") != "ocamlKeyword"
return (indent(a:l)/s:i)+1
endif
" Folds end on ;;
if getline(a:l) =~ '^\s*;;'
exe 'return "<' (indent(a:l)/s:i)+1 '"'
endif
" Comments around folds aren't merged to them.
if synIDattr(synID(a:l, indent(a:l)+1, 0), "name") == "ocamlComment"
return -1
endif
return '='
endfunction
" Vim support for OCaml .annot files
"
" Last Change: 2007 Jul 17
" Maintainer: Vincent Aravantinos <vincent.aravantinos@gmail.com>
" License: public domain
"
" Originally inspired by 'ocaml-dtypes.vim' by Stefano Zacchiroli.
" The source code is quite radically different for we not use python anymore.
" However this plugin should have the exact same behaviour, that's why the
" following lines are the quite exact copy of Stefano's original plugin :
"
" <<
" Executing Ocaml_print_type(<mode>) function will display in the Vim bottom
" line(s) the type of an ocaml value getting it from the corresponding .annot
" file (if any). If Vim is in visual mode, <mode> should be "visual" and the
" selected ocaml value correspond to the highlighted text, otherwise (<mode>
" can be anything else) it corresponds to the literal found at the current
" cursor position.
"
" Typing '<LocalLeader>t' (LocalLeader defaults to '\', see :h LocalLeader)
" will cause " Ocaml_print_type function to be invoked with the right
" argument depending on the current mode (visual or not).
" >>
"
" If you find something not matching this behaviour, please signal it.
"
" Differences are:
" - no need for python support
" + plus : more portable
" + minus: no more lazy parsing, it looks very fast however
"
" - ocamlbuild support, ie.
" + the plugin finds the _build directory and looks for the
" corresponding file inside;
" + if the user decides to change the name of the _build directory thanks
" to the '-build-dir' option of ocamlbuild, the plugin will manage in
" most cases to find it out (most cases = if the source file has a unique
" name among your whole project);
" + if ocamlbuild is not used, the usual behaviour holds; ie. the .annot
" file should be in the same directory as the source file;
" + for vim plugin programmers:
" the variable 'b:_build_dir' contains the inferred path to the build
" directory, even if this one is not named '_build'.
"
" Bonus :
" - latin1 accents are handled
" - lists are handled, even on multiple lines, you don't need the visual mode
" (the cursor must be on the first bracket)
" - parenthesized expressions, arrays, and structures (ie. '(...)', '[|...|]',
" and '{...}') are handled the same way
" Copied from Stefano's original plugin :
" <<
" .annot ocaml file representation
"
" File format (copied verbatim from caml-types.el)
"
" file ::= block *
" block ::= position <SP> position <LF> annotation *
" position ::= filename <SP> num <SP> num <SP> num
" annotation ::= keyword open-paren <LF> <SP> <SP> data <LF> close-paren
"
" <SP> is a space character (ASCII 0x20)
" <LF> is a line-feed character (ASCII 0x0A)
" num is a sequence of decimal digits
" filename is a string with the lexical conventions of O'Caml
" open-paren is an open parenthesis (ASCII 0x28)
" close-paren is a closed parenthesis (ASCII 0x29)
" data is any sequence of characters where <LF> is always followed by
" at least two space characters.
"
" - in each block, the two positions are respectively the start and the
" end of the range described by the block.
" - in a position, the filename is the name of the file, the first num
" is the line number, the second num is the offset of the beginning
" of the line, the third num is the offset of the position itself.
" - the char number within the line is the difference between the third
" and second nums.
"
" For the moment, the only possible keyword is \"type\"."
" >>
" 1. Finding the annotation file even if we use ocamlbuild
" In: two strings representing paths
" Out: one string representing the common prefix between the two paths
function! s:Find_common_path (p1,p2)
let temp = a:p2
while matchstr(a:p1,temp) == ''
let temp = substitute(temp,'/[^/]*$','','')
endwhile
return temp
endfun
" After call:
"
" Following information have been put in s:annot_file_list, using
" annot_file_name name as key:
" - annot_file_path :
" path to the .annot file corresponding to the
" source file (dealing with ocamlbuild stuff)
" - _build_path:
" path to the build directory even if this one is
" not named '_build'
" - date_of_last annot:
" Set to 0 until we load the file. It contains the
" date at which the file has been loaded.
function! s:Locate_annotation()
let annot_file_name = s:Fnameescape(expand('%:t:r')).'.annot'
if !exists ("s:annot_file_list[annot_file_name]")
silent exe 'cd' s:Fnameescape(expand('%:p:h'))
" 1st case : the annot file is in the same directory as the buffer (no ocamlbuild)
let annot_file_path = findfile(annot_file_name,'.')
if annot_file_path != ''
let annot_file_path = getcwd().'/'.annot_file_path
let _build_path = ''
else
" 2nd case : the buffer and the _build directory are in the same directory
" ..
" / \
" / \
" _build .ml
"
let _build_path = finddir('_build','.')
if _build_path != ''
let _build_path = getcwd().'/'._build_path
let annot_file_path = findfile(annot_file_name,'_build')
if annot_file_path != ''
let annot_file_path = getcwd().'/'.annot_file_path
endif
else
" 3rd case : the _build directory is in a directory higher in the file hierarchy
" (it can't be deeper by ocamlbuild requirements)
" ..
" / \
" / \
" _build ...
" \
" \
" .ml
"
let _build_path = finddir('_build',';')
if _build_path != ''
let project_path = substitute(_build_path,'/_build$','','')
let path_relative_to_project = s:Fnameescape(substitute(expand('%:p:h'),project_path.'/','',''))
let annot_file_path = findfile(annot_file_name,project_path.'/_build/'.path_relative_to_project)
else
let annot_file_path = findfile(annot_file_name,'**')
"4th case : what if the user decided to change the name of the _build directory ?
" -> we relax the constraints, it should work in most cases
if annot_file_path != ''
" 4a. we suppose the renamed _build directory is in the current directory
let _build_path = matchstr(annot_file_path,'^[^/]*')
if annot_file_path != ''
let annot_file_path = getcwd().'/'.annot_file_path
let _build_path = getcwd().'/'._build_path
endif
else
let annot_file_name = ''
"(Pierre Vittet: I have commented 4b because this was chrashing
"my vim (it produced infinite loop))
"
" 4b. anarchy : the renamed _build directory may be higher in the hierarchy
" this will work if the file for which we are looking annotations has a unique name in the whole project
" if this is not the case, it may still work, but no warranty here
"let annot_file_path = findfile(annot_file_name,'**;')
"let project_path = s:Find_common_path(annot_file_path,expand('%:p:h'))
"let _build_path = matchstr(annot_file_path,project_path.'/[^/]*')
endif
endif
endif
endif
if annot_file_path == ''
throw 'E484: no annotation file found'
endif
silent exe 'cd' '-'
let s:annot_file_list[annot_file_name]= [annot_file_path, _build_path, 0]
endif
endfun
" This variable contain a dictionnary of list. Each element of the dictionnary
" represent an annotation system. An annotation system is a list with :
" - annotation file name as it's key
" - annotation file path as first element of the contained list
" - build path as second element of the contained list
" - annot_file_last_mod (contain the date of .annot file) as third element
let s:annot_file_list = {}
" 2. Finding the type information in the annotation file
" a. The annotation file is opened in vim as a buffer that
" should be (almost) invisible to the user.
" After call:
" The current buffer is now the one containing the .annot file.
" We manage to keep all this hidden to the user's eye.
function! s:Enter_annotation_buffer(annot_file_path)
let s:current_pos = getpos('.')
let s:current_hidden = &l:hidden
set hidden
let s:current_buf = bufname('%')
if bufloaded(a:annot_file_path)
silent exe 'keepj keepalt' 'buffer' s:Fnameescape(a:annot_file_path)
else
silent exe 'keepj keepalt' 'view' s:Fnameescape(a:annot_file_path)
endif
call setpos(".", [0, 0 , 0 , 0])
endfun
" After call:
" The original buffer has been restored in the exact same state as before.
function! s:Exit_annotation_buffer()
silent exe 'keepj keepalt' 'buffer' s:Fnameescape(s:current_buf)
let &l:hidden = s:current_hidden
call setpos('.',s:current_pos)
endfun
" After call:
" The annot file is loaded and assigned to a buffer.
" This also handles the modification date of the .annot file, eg. after a
" compilation (return an updated annot_file_list).
function! s:Load_annotation(annot_file_name)
let annot = s:annot_file_list[a:annot_file_name]
let annot_file_path = annot[0]
let annot_file_last_mod = 0
if exists("annot[2]")
let annot_file_last_mod = annot[2]
endif
if bufloaded(annot_file_path) && annot_file_last_mod < getftime(annot_file_path)
" if there is a more recent file
let nr = bufnr(annot_file_path)
silent exe 'keepj keepalt' 'bunload' nr
endif
if !bufloaded(annot_file_path)
call s:Enter_annotation_buffer(annot_file_path)
setlocal nobuflisted
setlocal bufhidden=hide
setlocal noswapfile
setlocal buftype=nowrite
call s:Exit_annotation_buffer()
let annot[2] = getftime(annot_file_path)
" List updated with the new date
let s:annot_file_list[a:annot_file_name] = annot
endif
endfun
"b. 'search' and 'match' work to find the type information
"In: - lin1,col1: postion of expression first char
" - lin2,col2: postion of expression last char
"Out: - the pattern to be looked for to find the block
" Must be called in the source buffer (use of line2byte)
function! s:Block_pattern(lin1,lin2,col1,col2)
let start_num1 = a:lin1
let start_num2 = line2byte(a:lin1) - 1
let start_num3 = start_num2 + a:col1
let path = '"\(\\"\|[^"]\)\+"'
let start_pos = path.' '.start_num1.' '.start_num2.' '.start_num3
let end_num1 = a:lin2
let end_num2 = line2byte(a:lin2) - 1
let end_num3 = end_num2 + a:col2
let end_pos = path.' '.end_num1.' '.end_num2.' '.end_num3
return '^'.start_pos.' '.end_pos."$"
" rq: the '^' here is not totally correct regarding the annot file "grammar"
" but currently the annotation file respects this, and it's a little bit faster with the '^';
" can be removed safely.
endfun
"In: (the cursor position should be at the start of an annotation)
"Out: the type information
" Must be called in the annotation buffer (use of search)
function! s:Match_data()
" rq: idem as previously, in the following, the '^' at start of patterns is not necessary
keepj while search('^type($','ce',line(".")) == 0
keepj if search('^.\{-}($','e') == 0
throw "no_annotation"
endif
keepj if searchpair('(','',')') == 0
throw "malformed_annot_file"
endif
endwhile
let begin = line(".") + 1
keepj if searchpair('(','',')') == 0
throw "malformed_annot_file"
endif
let end = line(".") - 1
return join(getline(begin,end),"\n")
endfun
"In: the pattern to look for in order to match the block
"Out: the type information (calls s:Match_data)
" Should be called in the annotation buffer
function! s:Extract_type_data(block_pattern, annot_file_name)
let annot_file_path = s:annot_file_list[a:annot_file_name][0]
call s:Enter_annotation_buffer(annot_file_path)
try
if search(a:block_pattern,'e') == 0
throw "no_annotation"
endif
call cursor(line(".") + 1,1)
let annotation = s:Match_data()
finally
call s:Exit_annotation_buffer()
endtry
return annotation
endfun
"c. link this stuff with what the user wants
" ie. get the expression selected/under the cursor
let s:ocaml_word_char = '\w|[À-ÿ]|'''
"In: the current mode (eg. "visual", "normal", etc.)
"Out: the borders of the expression we are looking for the type
function! s:Match_borders(mode)
if a:mode == "visual"
let cur = getpos(".")
normal `<
let col1 = col(".")
let lin1 = line(".")
normal `>
let col2 = col(".")
let lin2 = line(".")
call cursor(cur[1],cur[2])
return [lin1,lin2,col1-1,col2]
else
let cursor_line = line(".")
let cursor_col = col(".")
let line = getline('.')
if line[cursor_col-1:cursor_col] == '[|'
let [lin2,col2] = searchpairpos('\[|','','|\]','n')
return [cursor_line,lin2,cursor_col-1,col2+1]
elseif line[cursor_col-1] == '['
let [lin2,col2] = searchpairpos('\[','','\]','n')
return [cursor_line,lin2,cursor_col-1,col2]
elseif line[cursor_col-1] == '('
let [lin2,col2] = searchpairpos('(','',')','n')
return [cursor_line,lin2,cursor_col-1,col2]
elseif line[cursor_col-1] == '{'
let [lin2,col2] = searchpairpos('{','','}','n')
return [cursor_line,lin2,cursor_col-1,col2]
else
let [lin1,col1] = searchpos('\v%('.s:ocaml_word_char.'|\.)*','ncb')
let [lin2,col2] = searchpos('\v%('.s:ocaml_word_char.'|\.)*','nce')
if col1 == 0 || col2 == 0
throw "no_expression"
endif
return [cursor_line,cursor_line,col1-1,col2]
endif
endif
endfun
"In: the current mode (eg. "visual", "normal", etc.)
"Out: the type information (calls s:Extract_type_data)
function! s:Get_type(mode, annot_file_name)
let [lin1,lin2,col1,col2] = s:Match_borders(a:mode)
return s:Extract_type_data(s:Block_pattern(lin1,lin2,col1,col2), a:annot_file_name)
endfun
"In: A string destined to be printed in the 'echo buffer'. It has line
"break and 2 space at each line beginning.
"Out: A string destined to be yanked, without space and double space.
function s:unformat_ocaml_type(res)
"Remove end of line.
let res = substitute (a:res, "\n", "", "g" )
"remove double space
let res =substitute(res , " ", " ", "g")
"remove space at begining of string.
let res = substitute(res, "^ *", "", "g")
return res
endfunction
"d. main
"In: the current mode (eg. "visual", "normal", etc.)
"After call: the type information is displayed
if !exists("*Ocaml_get_type")
function Ocaml_get_type(mode)
let annot_file_name = s:Fnameescape(expand('%:t:r')).'.annot'
call s:Locate_annotation()
call s:Load_annotation(annot_file_name)
let res = s:Get_type(a:mode, annot_file_name)
" Copy result in the unnamed buffer
let @" = s:unformat_ocaml_type(res)
return res
endfun
endif
if !exists("*Ocaml_get_type_or_not")
function Ocaml_get_type_or_not(mode)
let t=reltime()
try
let res = Ocaml_get_type(a:mode)
return res
catch
return ""
endtry
endfun
endif
if !exists("*Ocaml_print_type")
function Ocaml_print_type(mode)
if expand("%:e") == "mli"
echohl ErrorMsg | echo "No annotations for interface (.mli) files" | echohl None
return
endif
try
echo Ocaml_get_type(a:mode)
catch /E484:/
echohl ErrorMsg | echo "No type annotations (.annot) file found" | echohl None
catch /no_expression/
echohl ErrorMsg | echo "No expression found under the cursor" | echohl None
catch /no_annotation/
echohl ErrorMsg | echo "No type annotation found for the given text" | echohl None
catch /malformed_annot_file/
echohl ErrorMsg | echo "Malformed .annot file" | echohl None
endtry
endfun
endif
" Maps
nnoremap <silent> <Plug>OCamlPrintType :<C-U>call Ocaml_print_type("normal")<CR>
xnoremap <silent> <Plug>OCamlPrintType :<C-U>call Ocaml_print_type("visual")<CR>`<
let &cpoptions=s:cposet
unlet s:cposet
" vim:sw=2 fdm=indent
|