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authorBram Moolenaar <Bram@vim.org>2013-02-06 17:34:04 +0100
committerBram Moolenaar <Bram@vim.org>2013-02-06 17:34:04 +0100
commitfa13eef3c9edc81c07a47124c2c893a4bb253e58 (patch)
tree34863b7aafda94a1b74fff4de73ef799e0fbe77c /runtime/indent/clojure.vim
parent309379fc989a4f3337c9cf3361ab6eb9a456c626 (diff)
downloadvim-fa13eef3c9edc81c07a47124c2c893a4bb253e58.zip
Updated runtime files.
Diffstat (limited to 'runtime/indent/clojure.vim')
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+" 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: 30 January 2013
+
+" Only load this indent file when no other was loaded.
+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< lispwords< 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
+
+ function! s:SynIdName()
+ return synIDattr(synID(line("."), col("."), 0), "name")
+ endfunction
+
+ function! s:CurrentChar()
+ return getline('.')[col('.')-1]
+ endfunction
+
+ function! s:CurrentWord()
+ return getline('.')[col('.')-1 : searchpos('\v>', 'n', line('.'))[1]-2]
+ endfunction
+
+ function! s:IsParen()
+ return s:CurrentChar() =~ '\v[\(\)\[\]\{\}]' &&
+ \ s:SynIdName() !~? '\vstring|comment'
+ 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:MatchesOne(patterns, string)
+ let list = type(a:patterns) == type([])
+ \ ? a:patterns
+ \ : map(split(a:patterns, ','), '"^" . v:val . "$"')
+ for pat in list
+ if a:string =~ pat | return 1 | endif
+ endfor
+ endfunction
+
+ function! s:SavePosition()
+ let [ _b, l, c, _o ] = getpos(".")
+ let b = bufnr("%")
+ return [b, l, c]
+ endfunction
+
+ function! s:RestorePosition(value)
+ let [b, l, c] = a:value
+ if bufnr("%") != b
+ execute b "buffer!"
+ endif
+ call setpos(".", [0, l, c, 0])
+ endfunction
+
+ function! s:MatchPairs(open, close, stopat)
+ " Stop only on vector and map [ resp. {. Ignore the ones in strings and
+ " comments.
+ if a:stopat == 0
+ let stopat = max([line(".") - g:clojure_maxlines, 0])
+ else
+ let stopat = a:stopat
+ endif
+
+ let pos = searchpairpos(a:open, '', a:close, 'bWn', "!s:IsParen()", stopat)
+ return [pos[0], virtcol(pos)]
+ endfunction
+
+ function! s:ClojureCheckForStringWorker()
+ " Check whether there is the last character of the previous line is
+ " highlighted as a string. If so, we check whether it's a ". In this
+ " case we have to check also the previous character. The " might be the
+ " closing one. In case the we are still in the string, we search for the
+ " opening ". If this is not found we take the indent of the line.
+ let nb = prevnonblank(v:lnum - 1)
+
+ if nb == 0
+ return -1
+ endif
+
+ call cursor(nb, 0)
+ call cursor(0, col("$") - 1)
+ if s:SynIdName() !~? "string"
+ return -1
+ endif
+
+ " This will not work for a " in the first column...
+ if s:CurrentChar() == '"'
+ call cursor(0, col("$") - 2)
+ if s:SynIdName() !~? "string"
+ return -1
+ endif
+ if s:CurrentChar() != '\\'
+ return -1
+ endif
+ call cursor(0, col("$") - 1)
+ endif
+
+ let p = searchpos('\(^\|[^\\]\)\zs"', 'bW')
+
+ if p != [0, 0]
+ return p[1] - 1
+ endif
+
+ return indent(".")
+ endfunction
+
+ function! s:CheckForString()
+ let pos = s:SavePosition()
+ try
+ let val = s:ClojureCheckForStringWorker()
+ finally
+ call s:RestorePosition(pos)
+ endtry
+ return val
+ endfunction
+
+ function! s:ClojureIsMethodSpecialCaseWorker(position)
+ " Find the next enclosing form.
+ call search('\S', 'Wb')
+
+ " Special case: we are at a '(('.
+ if s:CurrentChar() == '('
+ return 0
+ endif
+ call cursor(a:position)
+
+ let nextParen = s:MatchPairs('(', ')', 0)
+
+ " Special case: we are now at toplevel.
+ if nextParen == [0, 0]
+ return 0
+ endif
+ call cursor(nextParen)
+
+ call search('\S', 'W')
+ if g:clojure_special_indent_words =~ '\<' . s:CurrentWord() . '\>'
+ return 1
+ endif
+
+ return 0
+ endfunction
+
+ function! s:IsMethodSpecialCase(position)
+ let pos = s:SavePosition()
+ try
+ let val = s:ClojureIsMethodSpecialCaseWorker(a:position)
+ finally
+ call s:RestorePosition(pos)
+ endtry
+ return val
+ endfunction
+
+ function! GetClojureIndent()
+ " Get rid of special case.
+ if line(".") == 1
+ return 0
+ endif
+
+ " We have to apply some heuristics here to figure out, whether to use
+ " normal lisp indenting or not.
+ let i = s:CheckForString()
+ if i > -1
+ return 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:MatchPairs('(', ')', 0)
+ let bracket = s:MatchPairs('\[', '\]', paren[0])
+ let curly = s:MatchPairs('{', '}', 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[1]
+ 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[1]
+ endif
+
+ " There are neither { nor [ nor (, ie. we are at the toplevel.
+ if paren == [0, 0]
+ return 0
+ 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:IsMethodSpecialCase(paren)
+ return paren[1] + &shiftwidth - 1
+ endif
+
+ " In case we are at the last character, we use the paren position.
+ if col("$") - 1 == paren[1]
+ return paren[1]
+ endif
+
+ " In case after the paren is a whitespace, we search for the next word.
+ normal! l
+ if s:CurrentChar() == ' '
+ normal! 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[1]
+ 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:CurrentWord()
+ if stridx('([{', w[0]) > -1
+ return paren[1]
+ 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 = substitute(w, "\\v%(.*/|[#'`~@^,]*)(.*)", '\1', '')
+
+ if &lispwords =~ '\V\<' . ww . '\>'
+ return paren[1] + &shiftwidth - 1
+ endif
+
+ if g:clojure_fuzzy_indent
+ \ && !s:MatchesOne(g:clojure_fuzzy_indent_blacklist, ww)
+ \ && s:MatchesOne(g:clojure_fuzzy_indent_patterns, ww)
+ return paren[1] + &shiftwidth - 1
+ endif
+
+ normal! W
+ if paren[0] < line(".")
+ return paren[1] + &shiftwidth - 1
+ endif
+
+ normal! ge
+ return virtcol(".") + 1
+ 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
+
+" Specially indented symbols from clojure.core and clojure.test.
+"
+" Clojure symbols are indented in the defn style when they:
+"
+" * Define vars and anonymous functions
+" * Create new lexical scopes or scopes with altered environments
+" * Create conditional branches from a predicate function or value
+"
+" The arglists for these functions are generally in the form of [x & body];
+" Functions that accept a flat list of forms do not treat the first argument
+" specially and hence are not indented specially.
+
+" Definitions
+setlocal lispwords=
+setlocal lispwords+=bound-fn
+setlocal lispwords+=def
+setlocal lispwords+=definline
+setlocal lispwords+=definterface
+setlocal lispwords+=defmacro
+setlocal lispwords+=defmethod
+setlocal lispwords+=defmulti
+setlocal lispwords+=defn
+setlocal lispwords+=defn-
+setlocal lispwords+=defonce
+setlocal lispwords+=defprotocol
+setlocal lispwords+=defrecord
+setlocal lispwords+=defstruct
+setlocal lispwords+=deftest " clojure.test
+setlocal lispwords+=deftest- " clojure.test
+setlocal lispwords+=deftype
+setlocal lispwords+=extend
+setlocal lispwords+=extend-protocol
+setlocal lispwords+=extend-type
+setlocal lispwords+=fn
+setlocal lispwords+=ns
+setlocal lispwords+=proxy
+setlocal lispwords+=reify
+setlocal lispwords+=set-test " clojure.test
+
+" Binding forms
+setlocal lispwords+=as->
+setlocal lispwords+=binding
+setlocal lispwords+=doall
+setlocal lispwords+=dorun
+setlocal lispwords+=doseq
+setlocal lispwords+=dotimes
+setlocal lispwords+=doto
+setlocal lispwords+=for
+setlocal lispwords+=if-let
+setlocal lispwords+=let
+setlocal lispwords+=letfn
+setlocal lispwords+=locking
+setlocal lispwords+=loop
+setlocal lispwords+=testing " clojure.test
+setlocal lispwords+=when-first
+setlocal lispwords+=when-let
+setlocal lispwords+=with-bindings
+setlocal lispwords+=with-in-str
+setlocal lispwords+=with-local-vars
+setlocal lispwords+=with-open
+setlocal lispwords+=with-precision
+setlocal lispwords+=with-redefs
+setlocal lispwords+=with-redefs-fn
+setlocal lispwords+=with-test " clojure.test
+
+" Conditional branching
+setlocal lispwords+=case
+setlocal lispwords+=cond->
+setlocal lispwords+=cond->>
+setlocal lispwords+=condp
+setlocal lispwords+=if
+setlocal lispwords+=if-not
+setlocal lispwords+=when
+setlocal lispwords+=when-not
+setlocal lispwords+=while
+
+" Exception handling
+setlocal lispwords+=catch
+setlocal lispwords+=try " For aesthetics when enclosing single line
+
+let &cpo = s:save_cpo
+unlet! s:save_cpo
+
+" vim:sts=4 sw=4 et: