Adding upstream version 2:9.1.0016.upstream/2%9.1.0016

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 226 insertions, 0 deletions

diff --git a/runtime/indent/cobol.vim b/runtime/indent/cobol.vim
new file mode 100644
index 0000000..01f7212
--- /dev/null
+++ b/runtime/indent/cobol.vim
@@ -0,0 +1,226 @@
+" 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
+" Ankit Jain      24.09.2021     add b:undo_indent (request by tpope)
+
+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$,0=01,=~division,=~section,0=~end,0=~then,0=~else,0=~when,*<Return>,.
+
+let b:undo_indent = "setlocal expandtab< indentexpr< indentkeys<"
+
+" Only define the function once.
+if exists("*GetCobolIndent")
+    finish
+endif
+
+let s:skip = 'getline(".") =~ "^.\\{6\\}[*/$-]\\|\"[^\"]*\""'
+
+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