mirror of
https://github.com/neovim/neovim.git
synced 2024-12-29 14:41:06 -07:00
395 lines
10 KiB
VimL
395 lines
10 KiB
VimL
" Vim indent file
|
||
" Language: Clojure
|
||
" Author: Meikel Brandmeyer <mb@kotka.de>
|
||
" URL: http://kotka.de/projects/clojure/vimclojure.html
|
||
"
|
||
" Maintainer: Sung Pae <self@sungpae.com>
|
||
" URL: https://github.com/guns/vim-clojure-static
|
||
" License: Same as Vim
|
||
" Last Change: 18 July 2016
|
||
|
||
if exists("b:did_indent")
|
||
finish
|
||
endif
|
||
let b:did_indent = 1
|
||
|
||
let s:save_cpo = &cpo
|
||
set cpo&vim
|
||
|
||
let b:undo_indent = 'setlocal autoindent< smartindent< expandtab< softtabstop< shiftwidth< indentexpr< indentkeys<'
|
||
|
||
setlocal noautoindent nosmartindent
|
||
setlocal softtabstop=2 shiftwidth=2 expandtab
|
||
setlocal indentkeys=!,o,O
|
||
|
||
if exists("*searchpairpos")
|
||
|
||
if !exists('g:clojure_maxlines')
|
||
let g:clojure_maxlines = 100
|
||
endif
|
||
|
||
if !exists('g:clojure_fuzzy_indent')
|
||
let g:clojure_fuzzy_indent = 1
|
||
endif
|
||
|
||
if !exists('g:clojure_fuzzy_indent_patterns')
|
||
let g:clojure_fuzzy_indent_patterns = ['^with', '^def', '^let']
|
||
endif
|
||
|
||
if !exists('g:clojure_fuzzy_indent_blacklist')
|
||
let g:clojure_fuzzy_indent_blacklist = ['-fn$', '\v^with-%(meta|out-str|loading-context)$']
|
||
endif
|
||
|
||
if !exists('g:clojure_special_indent_words')
|
||
let g:clojure_special_indent_words = 'deftype,defrecord,reify,proxy,extend-type,extend-protocol,letfn'
|
||
endif
|
||
|
||
if !exists('g:clojure_align_multiline_strings')
|
||
let g:clojure_align_multiline_strings = 0
|
||
endif
|
||
|
||
if !exists('g:clojure_align_subforms')
|
||
let g:clojure_align_subforms = 0
|
||
endif
|
||
|
||
function! s:syn_id_name()
|
||
return synIDattr(synID(line("."), col("."), 0), "name")
|
||
endfunction
|
||
|
||
function! s:ignored_region()
|
||
return s:syn_id_name() =~? '\vstring|regex|comment|character'
|
||
endfunction
|
||
|
||
function! s:current_char()
|
||
return getline('.')[col('.')-1]
|
||
endfunction
|
||
|
||
function! s:current_word()
|
||
return getline('.')[col('.')-1 : searchpos('\v>', 'n', line('.'))[1]-2]
|
||
endfunction
|
||
|
||
function! s:is_paren()
|
||
return s:current_char() =~# '\v[\(\)\[\]\{\}]' && !s:ignored_region()
|
||
endfunction
|
||
|
||
" Returns 1 if string matches a pattern in 'patterns', which may be a
|
||
" list of patterns, or a comma-delimited string of implicitly anchored
|
||
" patterns.
|
||
function! s:match_one(patterns, string)
|
||
let list = type(a:patterns) == type([])
|
||
\ ? a:patterns
|
||
\ : map(split(a:patterns, ','), '"^" . v:val . "$"')
|
||
for pat in list
|
||
if a:string =~# pat | return 1 | endif
|
||
endfor
|
||
endfunction
|
||
|
||
function! s:match_pairs(open, close, stopat)
|
||
" Stop only on vector and map [ resp. {. Ignore the ones in strings and
|
||
" comments.
|
||
if a:stopat == 0
|
||
let stopat = max([line(".") - g:clojure_maxlines, 0])
|
||
else
|
||
let stopat = a:stopat
|
||
endif
|
||
|
||
let pos = searchpairpos(a:open, '', a:close, 'bWn', "!s:is_paren()", stopat)
|
||
return [pos[0], col(pos)]
|
||
endfunction
|
||
|
||
function! s:clojure_check_for_string_worker()
|
||
" Check whether there is the last character of the previous line is
|
||
" highlighted as a string. If so, we check whether it's a ". In this
|
||
" case we have to check also the previous character. The " might be the
|
||
" closing one. In case the we are still in the string, we search for the
|
||
" opening ". If this is not found we take the indent of the line.
|
||
let nb = prevnonblank(v:lnum - 1)
|
||
|
||
if nb == 0
|
||
return -1
|
||
endif
|
||
|
||
call cursor(nb, 0)
|
||
call cursor(0, col("$") - 1)
|
||
if s:syn_id_name() !~? "string"
|
||
return -1
|
||
endif
|
||
|
||
" This will not work for a " in the first column...
|
||
if s:current_char() == '"'
|
||
call cursor(0, col("$") - 2)
|
||
if s:syn_id_name() !~? "string"
|
||
return -1
|
||
endif
|
||
if s:current_char() != '\\'
|
||
return -1
|
||
endif
|
||
call cursor(0, col("$") - 1)
|
||
endif
|
||
|
||
let p = searchpos('\(^\|[^\\]\)\zs"', 'bW')
|
||
|
||
if p != [0, 0]
|
||
return p[1] - 1
|
||
endif
|
||
|
||
return indent(".")
|
||
endfunction
|
||
|
||
function! s:check_for_string()
|
||
let pos = getpos('.')
|
||
try
|
||
let val = s:clojure_check_for_string_worker()
|
||
finally
|
||
call setpos('.', pos)
|
||
endtry
|
||
return val
|
||
endfunction
|
||
|
||
function! s:strip_namespace_and_macro_chars(word)
|
||
return substitute(a:word, "\\v%(.*/|[#'`~@^,]*)(.*)", '\1', '')
|
||
endfunction
|
||
|
||
function! s:clojure_is_method_special_case_worker(position)
|
||
" Find the next enclosing form.
|
||
call search('\S', 'Wb')
|
||
|
||
" Special case: we are at a '(('.
|
||
if s:current_char() == '('
|
||
return 0
|
||
endif
|
||
call cursor(a:position)
|
||
|
||
let next_paren = s:match_pairs('(', ')', 0)
|
||
|
||
" Special case: we are now at toplevel.
|
||
if next_paren == [0, 0]
|
||
return 0
|
||
endif
|
||
call cursor(next_paren)
|
||
|
||
call search('\S', 'W')
|
||
let w = s:strip_namespace_and_macro_chars(s:current_word())
|
||
if g:clojure_special_indent_words =~# '\V\<' . w . '\>'
|
||
return 1
|
||
endif
|
||
|
||
return 0
|
||
endfunction
|
||
|
||
function! s:is_method_special_case(position)
|
||
let pos = getpos('.')
|
||
try
|
||
let val = s:clojure_is_method_special_case_worker(a:position)
|
||
finally
|
||
call setpos('.', pos)
|
||
endtry
|
||
return val
|
||
endfunction
|
||
|
||
" Check if form is a reader conditional, that is, it is prefixed by #?
|
||
" or @#?
|
||
function! s:is_reader_conditional_special_case(position)
|
||
if getline(a:position[0])[a:position[1] - 3 : a:position[1] - 2] == "#?"
|
||
return 1
|
||
endif
|
||
|
||
return 0
|
||
endfunction
|
||
|
||
" Returns 1 for opening brackets, -1 for _anything else_.
|
||
function! s:bracket_type(char)
|
||
return stridx('([{', a:char) > -1 ? 1 : -1
|
||
endfunction
|
||
|
||
" Returns: [opening-bracket-lnum, indent]
|
||
function! s:clojure_indent_pos()
|
||
" Get rid of special case.
|
||
if line(".") == 1
|
||
return [0, 0]
|
||
endif
|
||
|
||
" We have to apply some heuristics here to figure out, whether to use
|
||
" normal lisp indenting or not.
|
||
let i = s:check_for_string()
|
||
if i > -1
|
||
return [0, i + !!g:clojure_align_multiline_strings]
|
||
endif
|
||
|
||
call cursor(0, 1)
|
||
|
||
" Find the next enclosing [ or {. We can limit the second search
|
||
" to the line, where the [ was found. If no [ was there this is
|
||
" zero and we search for an enclosing {.
|
||
let paren = s:match_pairs('(', ')', 0)
|
||
let bracket = s:match_pairs('\[', '\]', paren[0])
|
||
let curly = s:match_pairs('{', '}', bracket[0])
|
||
|
||
" In case the curly brace is on a line later then the [ or - in
|
||
" case they are on the same line - in a higher column, we take the
|
||
" curly indent.
|
||
if curly[0] > bracket[0] || curly[1] > bracket[1]
|
||
if curly[0] > paren[0] || curly[1] > paren[1]
|
||
return curly
|
||
endif
|
||
endif
|
||
|
||
" If the curly was not chosen, we take the bracket indent - if
|
||
" there was one.
|
||
if bracket[0] > paren[0] || bracket[1] > paren[1]
|
||
return bracket
|
||
endif
|
||
|
||
" There are neither { nor [ nor (, ie. we are at the toplevel.
|
||
if paren == [0, 0]
|
||
return paren
|
||
endif
|
||
|
||
" Now we have to reimplement lispindent. This is surprisingly easy, as
|
||
" soon as one has access to syntax items.
|
||
"
|
||
" - Check whether we are in a special position after a word in
|
||
" g:clojure_special_indent_words. These are special cases.
|
||
" - Get the next keyword after the (.
|
||
" - If its first character is also a (, we have another sexp and align
|
||
" one column to the right of the unmatched (.
|
||
" - In case it is in lispwords, we indent the next line to the column of
|
||
" the ( + sw.
|
||
" - If not, we check whether it is last word in the line. In that case
|
||
" we again use ( + sw for indent.
|
||
" - In any other case we use the column of the end of the word + 2.
|
||
call cursor(paren)
|
||
|
||
if s:is_method_special_case(paren)
|
||
return [paren[0], paren[1] + &shiftwidth - 1]
|
||
endif
|
||
|
||
if s:is_reader_conditional_special_case(paren)
|
||
return paren
|
||
endif
|
||
|
||
" In case we are at the last character, we use the paren position.
|
||
if col("$") - 1 == paren[1]
|
||
return paren
|
||
endif
|
||
|
||
" In case after the paren is a whitespace, we search for the next word.
|
||
call cursor(0, col('.') + 1)
|
||
if s:current_char() == ' '
|
||
call search('\v\S', 'W')
|
||
endif
|
||
|
||
" If we moved to another line, there is no word after the (. We
|
||
" use the ( position for indent.
|
||
if line(".") > paren[0]
|
||
return paren
|
||
endif
|
||
|
||
" We still have to check, whether the keyword starts with a (, [ or {.
|
||
" In that case we use the ( position for indent.
|
||
let w = s:current_word()
|
||
if s:bracket_type(w[0]) == 1
|
||
return paren
|
||
endif
|
||
|
||
" Test words without namespace qualifiers and leading reader macro
|
||
" metacharacters.
|
||
"
|
||
" e.g. clojure.core/defn and #'defn should both indent like defn.
|
||
let ww = s:strip_namespace_and_macro_chars(w)
|
||
|
||
if &lispwords =~# '\V\<' . ww . '\>'
|
||
return [paren[0], paren[1] + &shiftwidth - 1]
|
||
endif
|
||
|
||
if g:clojure_fuzzy_indent
|
||
\ && !s:match_one(g:clojure_fuzzy_indent_blacklist, ww)
|
||
\ && s:match_one(g:clojure_fuzzy_indent_patterns, ww)
|
||
return [paren[0], paren[1] + &shiftwidth - 1]
|
||
endif
|
||
|
||
call search('\v\_s', 'cW')
|
||
call search('\v\S', 'W')
|
||
if paren[0] < line(".")
|
||
return [paren[0], paren[1] + (g:clojure_align_subforms ? 0 : &shiftwidth - 1)]
|
||
endif
|
||
|
||
call search('\v\S', 'bW')
|
||
return [line('.'), col('.') + 1]
|
||
endfunction
|
||
|
||
function! GetClojureIndent()
|
||
let lnum = line('.')
|
||
let orig_lnum = lnum
|
||
let orig_col = col('.')
|
||
let [opening_lnum, indent] = s:clojure_indent_pos()
|
||
|
||
" Account for multibyte characters
|
||
if opening_lnum > 0
|
||
let indent -= indent - virtcol([opening_lnum, indent])
|
||
endif
|
||
|
||
" Return if there are no previous lines to inherit from
|
||
if opening_lnum < 1 || opening_lnum >= lnum - 1
|
||
call cursor(orig_lnum, orig_col)
|
||
return indent
|
||
endif
|
||
|
||
let bracket_count = 0
|
||
|
||
" Take the indent of the first previous non-white line that is
|
||
" at the same sexp level. cf. src/misc1.c:get_lisp_indent()
|
||
while 1
|
||
let lnum = prevnonblank(lnum - 1)
|
||
let col = 1
|
||
|
||
if lnum <= opening_lnum
|
||
break
|
||
endif
|
||
|
||
call cursor(lnum, col)
|
||
|
||
" Handle bracket counting edge case
|
||
if s:is_paren()
|
||
let bracket_count += s:bracket_type(s:current_char())
|
||
endif
|
||
|
||
while 1
|
||
if search('\v[(\[{}\])]', '', lnum) < 1
|
||
break
|
||
elseif !s:ignored_region()
|
||
let bracket_count += s:bracket_type(s:current_char())
|
||
endif
|
||
endwhile
|
||
|
||
if bracket_count == 0
|
||
" Check if this is part of a multiline string
|
||
call cursor(lnum, 1)
|
||
if s:syn_id_name() !~? '\vstring|regex'
|
||
call cursor(orig_lnum, orig_col)
|
||
return indent(lnum)
|
||
endif
|
||
endif
|
||
endwhile
|
||
|
||
call cursor(orig_lnum, orig_col)
|
||
return indent
|
||
endfunction
|
||
|
||
setlocal indentexpr=GetClojureIndent()
|
||
|
||
else
|
||
|
||
" In case we have searchpairpos not available we fall back to
|
||
" normal lisp indenting.
|
||
setlocal indentexpr=
|
||
setlocal lisp
|
||
let b:undo_indent .= '| setlocal lisp<'
|
||
|
||
endif
|
||
|
||
let &cpo = s:save_cpo
|
||
unlet! s:save_cpo
|
||
|
||
" vim:sts=8:sw=8:ts=8:noet
|