mirror of
https://github.com/neovim/neovim.git
synced 2024-12-29 14:41:06 -07:00
522 lines
14 KiB
VimL
522 lines
14 KiB
VimL
" Vim indent file
|
|
" Language: R
|
|
" Author: Jakson Alves de Aquino <jalvesaq@gmail.com>
|
|
" Homepage: https://github.com/jalvesaq/R-Vim-runtime
|
|
" Last Change: Thu Feb 18, 2016 06:32AM
|
|
|
|
|
|
" Only load this indent file when no other was loaded.
|
|
if exists("b:did_indent")
|
|
finish
|
|
endif
|
|
let b:did_indent = 1
|
|
|
|
setlocal indentkeys=0{,0},:,!^F,o,O,e
|
|
setlocal indentexpr=GetRIndent()
|
|
|
|
" Only define the function once.
|
|
if exists("*GetRIndent")
|
|
finish
|
|
endif
|
|
|
|
" Options to make the indentation more similar to Emacs/ESS:
|
|
if !exists("g:r_indent_align_args")
|
|
let g:r_indent_align_args = 1
|
|
endif
|
|
if !exists("g:r_indent_ess_comments")
|
|
let g:r_indent_ess_comments = 0
|
|
endif
|
|
if !exists("g:r_indent_comment_column")
|
|
let g:r_indent_comment_column = 40
|
|
endif
|
|
if ! exists("g:r_indent_ess_compatible")
|
|
let g:r_indent_ess_compatible = 0
|
|
endif
|
|
if ! exists("g:r_indent_op_pattern")
|
|
let g:r_indent_op_pattern = '\(&\||\|+\|-\|\*\|/\|=\|\~\|%\|->\)\s*$'
|
|
endif
|
|
|
|
function s:RDelete_quotes(line)
|
|
let i = 0
|
|
let j = 0
|
|
let line1 = ""
|
|
let llen = strlen(a:line)
|
|
while i < llen
|
|
if a:line[i] == '"'
|
|
let i += 1
|
|
let line1 = line1 . 's'
|
|
while !(a:line[i] == '"' && ((i > 1 && a:line[i-1] == '\' && a:line[i-2] == '\') || a:line[i-1] != '\')) && i < llen
|
|
let i += 1
|
|
endwhile
|
|
if a:line[i] == '"'
|
|
let i += 1
|
|
endif
|
|
else
|
|
if a:line[i] == "'"
|
|
let i += 1
|
|
let line1 = line1 . 's'
|
|
while !(a:line[i] == "'" && ((i > 1 && a:line[i-1] == '\' && a:line[i-2] == '\') || a:line[i-1] != '\')) && i < llen
|
|
let i += 1
|
|
endwhile
|
|
if a:line[i] == "'"
|
|
let i += 1
|
|
endif
|
|
else
|
|
if a:line[i] == "`"
|
|
let i += 1
|
|
let line1 = line1 . 's'
|
|
while a:line[i] != "`" && i < llen
|
|
let i += 1
|
|
endwhile
|
|
if a:line[i] == "`"
|
|
let i += 1
|
|
endif
|
|
endif
|
|
endif
|
|
endif
|
|
if i == llen
|
|
break
|
|
endif
|
|
let line1 = line1 . a:line[i]
|
|
let j += 1
|
|
let i += 1
|
|
endwhile
|
|
return line1
|
|
endfunction
|
|
|
|
" Convert foo(bar()) int foo()
|
|
function s:RDelete_parens(line)
|
|
if s:Get_paren_balance(a:line, "(", ")") != 0
|
|
return a:line
|
|
endif
|
|
let i = 0
|
|
let j = 0
|
|
let line1 = ""
|
|
let llen = strlen(a:line)
|
|
while i < llen
|
|
let line1 = line1 . a:line[i]
|
|
if a:line[i] == '('
|
|
let nop = 1
|
|
while nop > 0 && i < llen
|
|
let i += 1
|
|
if a:line[i] == ')'
|
|
let nop -= 1
|
|
else
|
|
if a:line[i] == '('
|
|
let nop += 1
|
|
endif
|
|
endif
|
|
endwhile
|
|
let line1 = line1 . a:line[i]
|
|
endif
|
|
let i += 1
|
|
endwhile
|
|
return line1
|
|
endfunction
|
|
|
|
function! s:Get_paren_balance(line, o, c)
|
|
let line2 = substitute(a:line, a:o, "", "g")
|
|
let openp = strlen(a:line) - strlen(line2)
|
|
let line3 = substitute(line2, a:c, "", "g")
|
|
let closep = strlen(line2) - strlen(line3)
|
|
return openp - closep
|
|
endfunction
|
|
|
|
function! s:Get_matching_brace(linenr, o, c, delbrace)
|
|
let line = SanitizeRLine(getline(a:linenr))
|
|
if a:delbrace == 1
|
|
let line = substitute(line, '{$', "", "")
|
|
endif
|
|
let pb = s:Get_paren_balance(line, a:o, a:c)
|
|
let i = a:linenr
|
|
while pb != 0 && i > 1
|
|
let i -= 1
|
|
let pb += s:Get_paren_balance(SanitizeRLine(getline(i)), a:o, a:c)
|
|
endwhile
|
|
return i
|
|
endfunction
|
|
|
|
" This function is buggy because there 'if's without 'else'
|
|
" It must be rewritten relying more on indentation
|
|
function! s:Get_matching_if(linenr, delif)
|
|
let line = SanitizeRLine(getline(a:linenr))
|
|
if a:delif
|
|
let line = substitute(line, "if", "", "g")
|
|
endif
|
|
let elsenr = 0
|
|
let i = a:linenr
|
|
let ifhere = 0
|
|
while i > 0
|
|
let line2 = substitute(line, '\<else\>', "xxx", "g")
|
|
let elsenr += strlen(line) - strlen(line2)
|
|
if line =~ '.*\s*if\s*()' || line =~ '.*\s*if\s*()'
|
|
let elsenr -= 1
|
|
if elsenr == 0
|
|
let ifhere = i
|
|
break
|
|
endif
|
|
endif
|
|
let i -= 1
|
|
let line = SanitizeRLine(getline(i))
|
|
endwhile
|
|
if ifhere
|
|
return ifhere
|
|
else
|
|
return a:linenr
|
|
endif
|
|
endfunction
|
|
|
|
function! s:Get_last_paren_idx(line, o, c, pb)
|
|
let blc = a:pb
|
|
let line = substitute(a:line, '\t', s:curtabstop, "g")
|
|
let theidx = -1
|
|
let llen = strlen(line)
|
|
let idx = 0
|
|
while idx < llen
|
|
if line[idx] == a:o
|
|
let blc -= 1
|
|
if blc == 0
|
|
let theidx = idx
|
|
endif
|
|
else
|
|
if line[idx] == a:c
|
|
let blc += 1
|
|
endif
|
|
endif
|
|
let idx += 1
|
|
endwhile
|
|
return theidx + 1
|
|
endfunction
|
|
|
|
" Get previous relevant line. Search back until getting a line that isn't
|
|
" comment or blank
|
|
function s:Get_prev_line(lineno)
|
|
let lnum = a:lineno - 1
|
|
let data = getline( lnum )
|
|
while lnum > 0 && (data =~ '^\s*#' || data =~ '^\s*$')
|
|
let lnum = lnum - 1
|
|
let data = getline( lnum )
|
|
endwhile
|
|
return lnum
|
|
endfunction
|
|
|
|
" This function is also used by r-plugin/common_global.vim
|
|
" Delete from '#' to the end of the line, unless the '#' is inside a string.
|
|
function SanitizeRLine(line)
|
|
let newline = s:RDelete_quotes(a:line)
|
|
let newline = s:RDelete_parens(newline)
|
|
let newline = substitute(newline, '#.*', "", "")
|
|
let newline = substitute(newline, '\s*$', "", "")
|
|
if &filetype == "rhelp" && newline =~ '^\\method{.*}{.*}(.*'
|
|
let newline = substitute(newline, '^\\method{\(.*\)}{.*}', '\1', "")
|
|
endif
|
|
return newline
|
|
endfunction
|
|
|
|
function GetRIndent()
|
|
|
|
let clnum = line(".") " current line
|
|
|
|
let cline = getline(clnum)
|
|
if cline =~ '^\s*#'
|
|
if g:r_indent_ess_comments == 1
|
|
if cline =~ '^\s*###'
|
|
return 0
|
|
endif
|
|
if cline !~ '^\s*##'
|
|
return g:r_indent_comment_column
|
|
endif
|
|
endif
|
|
endif
|
|
|
|
let cline = SanitizeRLine(cline)
|
|
|
|
if cline =~ '^\s*}' || cline =~ '^\s*}\s*)$'
|
|
let indline = s:Get_matching_brace(clnum, '{', '}', 1)
|
|
if indline > 0 && indline != clnum
|
|
let iline = SanitizeRLine(getline(indline))
|
|
if s:Get_paren_balance(iline, "(", ")") == 0 || iline =~ '(\s*{$'
|
|
return indent(indline)
|
|
else
|
|
let indline = s:Get_matching_brace(indline, '(', ')', 1)
|
|
return indent(indline)
|
|
endif
|
|
endif
|
|
endif
|
|
|
|
" Find the first non blank line above the current line
|
|
let lnum = s:Get_prev_line(clnum)
|
|
" Hit the start of the file, use zero indent.
|
|
if lnum == 0
|
|
return 0
|
|
endif
|
|
|
|
let line = SanitizeRLine(getline(lnum))
|
|
|
|
if &filetype == "rhelp"
|
|
if cline =~ '^\\dontshow{' || cline =~ '^\\dontrun{' || cline =~ '^\\donttest{' || cline =~ '^\\testonly{'
|
|
return 0
|
|
endif
|
|
if line =~ '^\\examples{' || line =~ '^\\usage{' || line =~ '^\\dontshow{' || line =~ '^\\dontrun{' || line =~ '^\\donttest{' || line =~ '^\\testonly{'
|
|
return 0
|
|
endif
|
|
endif
|
|
|
|
if &filetype == "rnoweb" && line =~ "^<<.*>>="
|
|
return 0
|
|
endif
|
|
|
|
if cline =~ '^\s*{' && s:Get_paren_balance(cline, '{', '}') > 0
|
|
if g:r_indent_ess_compatible && line =~ ')$'
|
|
let nlnum = lnum
|
|
let nline = line
|
|
while s:Get_paren_balance(nline, '(', ')') < 0
|
|
let nlnum = s:Get_prev_line(nlnum)
|
|
let nline = SanitizeRLine(getline(nlnum)) . nline
|
|
endwhile
|
|
if nline =~ '^\s*function\s*(' && indent(nlnum) == shiftwidth()
|
|
return 0
|
|
endif
|
|
endif
|
|
if s:Get_paren_balance(line, "(", ")") == 0
|
|
return indent(lnum)
|
|
endif
|
|
endif
|
|
|
|
" line is an incomplete command:
|
|
if line =~ '\<\(if\|while\|for\|function\)\s*()$' || line =~ '\<else$' || line =~ '<-$' || line =~ '->$'
|
|
return indent(lnum) + shiftwidth()
|
|
endif
|
|
|
|
" Deal with () and []
|
|
|
|
let pb = s:Get_paren_balance(line, '(', ')')
|
|
|
|
if line =~ '^\s*{$' || line =~ '(\s*{' || (pb == 0 && (line =~ '{$' || line =~ '(\s*{$'))
|
|
return indent(lnum) + shiftwidth()
|
|
endif
|
|
|
|
let s:curtabstop = repeat(' ', &tabstop)
|
|
|
|
if g:r_indent_align_args == 1
|
|
if pb > 0 && line =~ '{$'
|
|
return s:Get_last_paren_idx(line, '(', ')', pb) + shiftwidth()
|
|
endif
|
|
|
|
let bb = s:Get_paren_balance(line, '[', ']')
|
|
|
|
if pb > 0
|
|
if &filetype == "rhelp"
|
|
let ind = s:Get_last_paren_idx(line, '(', ')', pb)
|
|
else
|
|
let ind = s:Get_last_paren_idx(getline(lnum), '(', ')', pb)
|
|
endif
|
|
return ind
|
|
endif
|
|
|
|
if pb < 0 && line =~ '.*[,&|\-\*+<>]$'
|
|
let lnum = s:Get_prev_line(lnum)
|
|
while pb < 1 && lnum > 0
|
|
let line = SanitizeRLine(getline(lnum))
|
|
let line = substitute(line, '\t', s:curtabstop, "g")
|
|
let ind = strlen(line)
|
|
while ind > 0
|
|
if line[ind] == ')'
|
|
let pb -= 1
|
|
else
|
|
if line[ind] == '('
|
|
let pb += 1
|
|
endif
|
|
endif
|
|
if pb == 1
|
|
return ind + 1
|
|
endif
|
|
let ind -= 1
|
|
endwhile
|
|
let lnum -= 1
|
|
endwhile
|
|
return 0
|
|
endif
|
|
|
|
if bb > 0
|
|
let ind = s:Get_last_paren_idx(getline(lnum), '[', ']', bb)
|
|
return ind
|
|
endif
|
|
endif
|
|
|
|
let post_block = 0
|
|
if line =~ '}$' && s:Get_paren_balance(line, '{', '}') < 0
|
|
let lnum = s:Get_matching_brace(lnum, '{', '}', 0)
|
|
let line = SanitizeRLine(getline(lnum))
|
|
if lnum > 0 && line =~ '^\s*{'
|
|
let lnum = s:Get_prev_line(lnum)
|
|
let line = SanitizeRLine(getline(lnum))
|
|
endif
|
|
let pb = s:Get_paren_balance(line, '(', ')')
|
|
let post_block = 1
|
|
endif
|
|
|
|
" Indent after operator pattern
|
|
let olnum = s:Get_prev_line(lnum)
|
|
let oline = getline(olnum)
|
|
if olnum > 0
|
|
if line =~ g:r_indent_op_pattern && s:Get_paren_balance(line, "(", ")") == 0
|
|
if oline =~ g:r_indent_op_pattern && s:Get_paren_balance(line, "(", ")") == 0
|
|
return indent(lnum)
|
|
else
|
|
return indent(lnum) + shiftwidth()
|
|
endif
|
|
else
|
|
if oline =~ g:r_indent_op_pattern && s:Get_paren_balance(line, "(", ")") == 0
|
|
return indent(lnum) - shiftwidth()
|
|
endif
|
|
endif
|
|
endif
|
|
|
|
let post_fun = 0
|
|
if pb < 0 && line !~ ')\s*[,&|\-\*+<>]$'
|
|
let post_fun = 1
|
|
while pb < 0 && lnum > 0
|
|
let lnum -= 1
|
|
let linepiece = SanitizeRLine(getline(lnum))
|
|
let pb += s:Get_paren_balance(linepiece, "(", ")")
|
|
let line = linepiece . line
|
|
endwhile
|
|
if line =~ '{$' && post_block == 0
|
|
return indent(lnum) + shiftwidth()
|
|
endif
|
|
|
|
" Now we can do some tests again
|
|
if cline =~ '^\s*{'
|
|
return indent(lnum)
|
|
endif
|
|
if post_block == 0
|
|
let newl = SanitizeRLine(line)
|
|
if newl =~ '\<\(if\|while\|for\|function\)\s*()$' || newl =~ '\<else$' || newl =~ '<-$'
|
|
return indent(lnum) + shiftwidth()
|
|
endif
|
|
endif
|
|
endif
|
|
|
|
if cline =~ '^\s*else'
|
|
if line =~ '<-\s*if\s*()'
|
|
return indent(lnum) + shiftwidth()
|
|
else
|
|
if line =~ '\<if\s*()'
|
|
return indent(lnum)
|
|
else
|
|
return indent(lnum) - shiftwidth()
|
|
endif
|
|
endif
|
|
endif
|
|
|
|
let bb = s:Get_paren_balance(line, '[', ']')
|
|
if bb < 0 && line =~ '.*]'
|
|
while bb < 0 && lnum > 0
|
|
let lnum -= 1
|
|
let linepiece = SanitizeRLine(getline(lnum))
|
|
let bb += s:Get_paren_balance(linepiece, "[", "]")
|
|
let line = linepiece . line
|
|
endwhile
|
|
let line = s:RDelete_parens(line)
|
|
endif
|
|
|
|
let plnum = s:Get_prev_line(lnum)
|
|
let ppost_else = 0
|
|
if plnum > 0
|
|
let pline = SanitizeRLine(getline(plnum))
|
|
let ppost_block = 0
|
|
if pline =~ '}$'
|
|
let ppost_block = 1
|
|
let plnum = s:Get_matching_brace(plnum, '{', '}', 0)
|
|
let pline = SanitizeRLine(getline(plnum))
|
|
if pline =~ '^\s*{$' && plnum > 0
|
|
let plnum = s:Get_prev_line(plnum)
|
|
let pline = SanitizeRLine(getline(plnum))
|
|
endif
|
|
endif
|
|
|
|
if pline =~ 'else$'
|
|
let ppost_else = 1
|
|
let plnum = s:Get_matching_if(plnum, 0)
|
|
let pline = SanitizeRLine(getline(plnum))
|
|
endif
|
|
|
|
if pline =~ '^\s*else\s*if\s*('
|
|
let pplnum = s:Get_prev_line(plnum)
|
|
let ppline = SanitizeRLine(getline(pplnum))
|
|
while ppline =~ '^\s*else\s*if\s*(' || ppline =~ '^\s*if\s*()\s*\S$'
|
|
let plnum = pplnum
|
|
let pline = ppline
|
|
let pplnum = s:Get_prev_line(plnum)
|
|
let ppline = SanitizeRLine(getline(pplnum))
|
|
endwhile
|
|
while ppline =~ '\<\(if\|while\|for\|function\)\s*()$' || ppline =~ '\<else$' || ppline =~ '<-$'
|
|
let plnum = pplnum
|
|
let pline = ppline
|
|
let pplnum = s:Get_prev_line(plnum)
|
|
let ppline = SanitizeRLine(getline(pplnum))
|
|
endwhile
|
|
endif
|
|
|
|
let ppb = s:Get_paren_balance(pline, '(', ')')
|
|
if ppb < 0 && (pline =~ ')\s*{$' || pline =~ ')$')
|
|
while ppb < 0 && plnum > 0
|
|
let plnum -= 1
|
|
let linepiece = SanitizeRLine(getline(plnum))
|
|
let ppb += s:Get_paren_balance(linepiece, "(", ")")
|
|
let pline = linepiece . pline
|
|
endwhile
|
|
let pline = s:RDelete_parens(pline)
|
|
endif
|
|
endif
|
|
|
|
let ind = indent(lnum)
|
|
|
|
if g:r_indent_align_args == 0 && pb != 0
|
|
let ind += pb * shiftwidth()
|
|
return ind
|
|
endif
|
|
|
|
if g:r_indent_align_args == 0 && bb != 0
|
|
let ind += bb * shiftwidth()
|
|
return ind
|
|
endif
|
|
|
|
if plnum > 0
|
|
let pind = indent(plnum)
|
|
else
|
|
let pind = 0
|
|
endif
|
|
|
|
if ind == pind || (ind == (pind + shiftwidth()) && pline =~ '{$' && ppost_else == 0)
|
|
return ind
|
|
endif
|
|
|
|
let pline = getline(plnum)
|
|
let pbb = s:Get_paren_balance(pline, '[', ']')
|
|
|
|
while pind < ind && plnum > 0 && ppb == 0 && pbb == 0
|
|
let ind = pind
|
|
let plnum = s:Get_prev_line(plnum)
|
|
let pline = getline(plnum)
|
|
let ppb = s:Get_paren_balance(pline, '(', ')')
|
|
let pbb = s:Get_paren_balance(pline, '[', ']')
|
|
while pline =~ '^\s*else'
|
|
let plnum = s:Get_matching_if(plnum, 1)
|
|
let pline = getline(plnum)
|
|
let ppb = s:Get_paren_balance(pline, '(', ')')
|
|
let pbb = s:Get_paren_balance(pline, '[', ']')
|
|
endwhile
|
|
let pind = indent(plnum)
|
|
if ind == (pind + shiftwidth()) && pline =~ '{$'
|
|
return ind
|
|
endif
|
|
endwhile
|
|
|
|
return ind
|
|
|
|
endfunction
|
|
|
|
" vim: sw=2
|