mirror of
https://github.com/neovim/neovim.git
synced 2024-12-20 19:25:11 -07:00
224 lines
8.5 KiB
VimL
224 lines
8.5 KiB
VimL
" Vim indent file
|
|
" Language: cobol
|
|
" Maintainer: Ankit Jain <ajatkj@yahoo.co.in>
|
|
" (formerly Tim Pope <vimNOSPAM@tpope.info>)
|
|
" $Id: cobol.vim,v 1.1 2007/05/05 18:08:19 vimboss Exp $
|
|
" Last Update: By Ankit Jain on 22.03.2019
|
|
" Ankit Jain 22.03.2019 Changes & fixes:
|
|
" Allow chars in 1st 6 columns
|
|
" #C22032019
|
|
|
|
if exists("b:did_indent")
|
|
finish
|
|
endif
|
|
let b:did_indent = 1
|
|
|
|
setlocal expandtab
|
|
setlocal indentexpr=GetCobolIndent(v:lnum)
|
|
setlocal indentkeys&
|
|
setlocal indentkeys+=0<*>,0/,0$,0=01,=~division,=~section,0=~end,0=~then,0=~else,0=~when,*<Return>,.
|
|
|
|
" Only define the function once.
|
|
if exists("*GetCobolIndent")
|
|
finish
|
|
endif
|
|
|
|
let s:skip = 'getline(".") =~ "^.\\{6\\}[*/$-]\\|\"[^\"]*\""'
|
|
|
|
function! s:prevgood(lnum)
|
|
" Find a non-blank line above the current line.
|
|
" Skip over comments.
|
|
let lnum = a:lnum
|
|
while lnum > 0
|
|
let lnum = prevnonblank(lnum - 1)
|
|
let line = getline(lnum)
|
|
if line !~? '^\s*[*/$-]' && line !~? '^.\{6\}[*/$CD-]'
|
|
break
|
|
endif
|
|
endwhile
|
|
return lnum
|
|
endfunction
|
|
|
|
function! s:stripped(lnum)
|
|
return substitute(strpart(getline(a:lnum),0,72),'^\s*','','')
|
|
endfunction
|
|
|
|
function! s:optionalblock(lnum,ind,blocks,clauses)
|
|
let ind = a:ind
|
|
let clauses = '\c\<\%(\<NOT\s\+\)\@<!\%(NOT\s\+\)\=\%('.a:clauses.'\)'
|
|
let begin = '\c-\@<!\<\%('.a:blocks.'\)\>'
|
|
let beginfull = begin.'\ze.*\%(\n\%(\s*\%([*/$-].*\)\=\n\)*\)\=\s*\%('.clauses.'\)'
|
|
let end = '\c\<end-\%('.a:blocks.'\)\>\|\%(\.\%( \|$\)\)\@='
|
|
let cline = s:stripped(a:lnum)
|
|
let line = s:stripped(s:prevgood(a:lnum))
|
|
if cline =~? clauses "&& line !~? '^search\>'
|
|
call cursor(a:lnum,1)
|
|
let lastclause = searchpair(beginfull,clauses,end,'bWr',s:skip)
|
|
if getline(lastclause) =~? clauses && s:stripped(lastclause) !~? '^'.begin
|
|
let ind = indent(lastclause)
|
|
elseif lastclause > 0
|
|
let ind = indent(lastclause) + shiftwidth()
|
|
"let ind = ind + shiftwidth()
|
|
endif
|
|
elseif line =~? clauses && cline !~? end
|
|
let ind = ind + shiftwidth()
|
|
endif
|
|
return ind
|
|
endfunction
|
|
|
|
function! GetCobolIndent(lnum) abort
|
|
let minshft = 6
|
|
let ashft = minshft + 1
|
|
let bshft = ashft + 4
|
|
" (Obsolete) numbered lines
|
|
" #C22032019: Columns 1-6 could have alphabets as well as numbers
|
|
"if getline(a:lnum) =~? '^\s*\d\{6\}\%($\|[ */$CD-]\)'
|
|
if getline(a:lnum) =~? '^\s*[a-zA-Z0-9]\{6\}\%($\|[ */$CD-]\)'
|
|
return 0
|
|
endif
|
|
let cline = s:stripped(a:lnum)
|
|
" Comments, etc. must start in the 7th column
|
|
if cline =~? '^[*/$-]'
|
|
return minshft
|
|
elseif cline =~# '^[CD]' && indent(a:lnum) == minshft
|
|
return minshft
|
|
endif
|
|
" Divisions, sections, and file descriptions start in area A
|
|
if cline =~? '\<\(DIVISION\|SECTION\)\%($\|\.\)' || cline =~? '^[FS]D\>'
|
|
return ashft
|
|
endif
|
|
" Fields
|
|
if cline =~? '^0*\(1\|77\)\>'
|
|
return ashft
|
|
endif
|
|
if cline =~? '^\d\+\>'
|
|
let cnum = matchstr(cline,'^\d\+\>')
|
|
let default = 0
|
|
let step = -1
|
|
while step < 2
|
|
let lnum = a:lnum
|
|
while lnum > 0 && lnum < line('$') && lnum > a:lnum - 500 && lnum < a:lnum + 500
|
|
let lnum = step > 0 ? nextnonblank(lnum + step) : prevnonblank(lnum + step)
|
|
let line = getline(lnum)
|
|
let lindent = indent(lnum)
|
|
if line =~? '^\s*\d\+\>'
|
|
let num = matchstr(line,'^\s*\zs\d\+\>')
|
|
if 0+cnum == num
|
|
return lindent
|
|
elseif 0+cnum > num && default < lindent + shiftwidth()
|
|
let default = lindent + shiftwidth()
|
|
endif
|
|
elseif lindent < bshft && lindent >= ashft
|
|
break
|
|
endif
|
|
endwhile
|
|
let step = step + 2
|
|
endwhile
|
|
return default ? default : bshft
|
|
endif
|
|
let lnum = s:prevgood(a:lnum)
|
|
" Hit the start of the file, use "zero" indent.
|
|
if lnum == 0
|
|
return ashft
|
|
endif
|
|
" Initial spaces are ignored
|
|
let line = s:stripped(lnum)
|
|
let ind = indent(lnum)
|
|
" Paragraphs. There may be some false positives.
|
|
if cline =~? '^\(\a[A-Z0-9-]*[A-Z0-9]\|\d[A-Z0-9-]*\a\)\.' "\s*$'
|
|
if cline !~? '^EXIT\s*\.' && line =~? '\.\s*$'
|
|
return ashft
|
|
endif
|
|
endif
|
|
" Paragraphs in the identification division.
|
|
"if cline =~? '^\(PROGRAM-ID\|AUTHOR\|INSTALLATION\|' .
|
|
"\ 'DATE-WRITTEN\|DATE-COMPILED\|SECURITY\)\>'
|
|
"return ashft
|
|
"endif
|
|
if line =~? '\.$'
|
|
" XXX
|
|
return bshft
|
|
endif
|
|
if line =~? '^PERFORM\>'
|
|
let perfline = substitute(line, '\c^PERFORM\s*', "", "")
|
|
if perfline =~? '^\%(\k\+\s\+TIMES\)\=\s*$'
|
|
let ind = ind + shiftwidth()
|
|
elseif perfline =~? '^\%(WITH\s\+TEST\|VARYING\|UNTIL\)\>.*[^.]$'
|
|
let ind = ind + shiftwidth()
|
|
endif
|
|
endif
|
|
if line =~? '^\%(IF\|THEN\|ELSE\|READ\|EVALUATE\|SEARCH\|SELECT\)\>'
|
|
let ind = ind + shiftwidth()
|
|
endif
|
|
let ind = s:optionalblock(a:lnum,ind,'ADD\|COMPUTE\|DIVIDE\|MULTIPLY\|SUBTRACT','ON\s\+SIZE\s\+ERROR')
|
|
let ind = s:optionalblock(a:lnum,ind,'STRING\|UNSTRING\|ACCEPT\|DISPLAY\|CALL','ON\s\+OVERFLOW\|ON\s\+EXCEPTION')
|
|
if cline !~? '^AT\s\+END\>' || line !~? '^SEARCH\>'
|
|
let ind = s:optionalblock(a:lnum,ind,'DELETE\|REWRITE\|START\|WRITE\|READ','INVALID\s\+KEY\|AT\s\+END\|NO\s\+DATA\|AT\s\+END-OF-PAGE')
|
|
endif
|
|
if cline =~? '^WHEN\>'
|
|
call cursor(a:lnum,1)
|
|
" We also search for READ so that contained AT ENDs are skipped
|
|
let lastclause = searchpair('\c-\@<!\<\%(SEARCH\|EVALUATE\|READ\)\>','\c\<\%(WHEN\|AT\s\+END\)\>','\c\<END-\%(SEARCH\|EVALUATE\|READ\)\>','bW',s:skip)
|
|
let g:foo = s:stripped(lastclause)
|
|
if s:stripped(lastclause) =~? '\c\<\%(WHEN\|AT\s\+END\)\>'
|
|
"&& s:stripped(lastclause) !~? '^\%(SEARCH\|EVALUATE\|READ\)\>'
|
|
let ind = indent(lastclause)
|
|
elseif lastclause > 0
|
|
let ind = indent(lastclause) + shiftwidth()
|
|
endif
|
|
elseif line =~? '^WHEN\>'
|
|
let ind = ind + shiftwidth()
|
|
endif
|
|
"I'm not sure why I had this
|
|
"if line =~? '^ELSE\>-\@!' && line !~? '\.$'
|
|
"let ind = indent(s:prevgood(lnum))
|
|
"endif
|
|
if cline =~? '^\(END\)\>-\@!'
|
|
" On lines with just END, 'guess' a simple shift left
|
|
let ind = ind - shiftwidth()
|
|
elseif cline =~? '^\(END-IF\|THEN\|ELSE\)\>-\@!'
|
|
call cursor(a:lnum,indent(a:lnum))
|
|
let match = searchpair('\c-\@<!\<IF\>','\c-\@<!\%(THEN\|ELSE\)\>','\c-\@<!\<END-IF\>\zs','bnW',s:skip)
|
|
if match > 0
|
|
let ind = indent(match)
|
|
endif
|
|
elseif cline =~? '^END-[A-Z]'
|
|
let beginword = matchstr(cline,'\c\<END-\zs[A-Z0-9-]\+')
|
|
let endword = 'END-'.beginword
|
|
let first = 0
|
|
let suffix = '.*\%(\n\%(\%(\s*\|.\{6\}\)[*/].*\n\)*\)\=\s*'
|
|
if beginword =~? '^\%(ADD\|COMPUTE\|DIVIDE\|MULTIPLY\|SUBTRACT\)$'
|
|
let beginword = beginword . suffix . '\<\%(NOT\s\+\)\=ON\s\+SIZE\s\+ERROR'
|
|
let g:beginword = beginword
|
|
let first = 1
|
|
elseif beginword =~? '^\%(STRING\|UNSTRING\)$'
|
|
let beginword = beginword . suffix . '\<\%(NOT\s\+\)\=ON\s\+OVERFLOW'
|
|
let first = 1
|
|
elseif beginword =~? '^\%(ACCEPT\|DISPLAY\)$'
|
|
let beginword = beginword . suffix . '\<\%(NOT\s\+\)\=ON\s\+EXCEPTION'
|
|
let first = 1
|
|
elseif beginword ==? 'CALL'
|
|
let beginword = beginword . suffix . '\<\%(NOT\s\+\)\=ON\s\+\%(EXCEPTION\|OVERFLOW\)'
|
|
let first = 1
|
|
elseif beginword =~? '^\%(DELETE\|REWRITE\|START\|READ\|WRITE\)$'
|
|
let first = 1
|
|
let beginword = beginword . suffix . '\<\%(NOT\s\+\)\=\(INVALID\s\+KEY'
|
|
if beginword =~? '^READ'
|
|
let first = 0
|
|
let beginword = beginword . '\|AT\s\+END\|NO\s\+DATA'
|
|
elseif beginword =~? '^WRITE'
|
|
let beginword = beginword . '\|AT\s\+END-OF-PAGE'
|
|
endif
|
|
let beginword = beginword . '\)'
|
|
endif
|
|
call cursor(a:lnum,indent(a:lnum))
|
|
let match = searchpair('\c-\@<!\<'.beginword.'\>','','\c\<'.endword.'\>\zs','bnW'.(first? 'r' : ''),s:skip)
|
|
if match > 0
|
|
let ind = indent(match)
|
|
elseif cline =~? '^\(END-\(READ\|EVALUATE\|SEARCH\|PERFORM\)\)\>'
|
|
let ind = ind - shiftwidth()
|
|
endif
|
|
endif
|
|
return ind < bshft ? bshft : ind
|
|
endfunction
|