Mercurial > hg > RemoteEditor > vim7
annotate runtime/indent/cobol.vim @ 34:e170173ecb68 current-release
before ack base protocol.
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Wed, 26 Nov 2008 15:02:10 +0900 |
| parents | 76efa0be13f1 |
| children | c16898406ff2 |
| rev | line source |
|---|---|
| 0 | 1 " Vim indent file |
| 2 " Language: cobol | |
| 3 " Author: Tim Pope <vimNOSPAM@tpope.info> | |
|
34
e170173ecb68
before ack base protocol.
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
4 " $Id: cobol.vim,v 1.2 2008/08/29 06:41:29 axmo Exp $ |
| 0 | 5 |
| 6 if exists("b:did_indent") | |
| 7 finish | |
| 8 endif | |
| 9 let b:did_indent = 1 | |
| 10 | |
| 11 setlocal expandtab | |
| 12 setlocal indentexpr=GetCobolIndent(v:lnum) | |
| 13 setlocal indentkeys& | |
| 14 setlocal indentkeys+=0<*>,0/,0$,0=01,=~division,=~section,0=~end,0=~then,0=~else,0=~when,*<Return>,. | |
| 15 | |
| 16 " Only define the function once. | |
| 17 if exists("*GetCobolIndent") | |
| 18 finish | |
| 19 endif | |
| 20 | |
| 21 let s:skip = 'getline(".") =~ "^.\\{6\\}[*/$-]\\|\"[^\"]*\""' | |
| 22 | |
| 23 function! s:prevgood(lnum) | |
| 24 " Find a non-blank line above the current line. | |
| 25 " Skip over comments. | |
| 26 let lnum = a:lnum | |
| 27 while lnum > 0 | |
| 28 let lnum = prevnonblank(lnum - 1) | |
| 29 let line = getline(lnum) | |
| 30 if line !~? '^\s*[*/$-]' && line !~? '^.\{6\}[*/$CD-]' | |
| 31 break | |
| 32 endif | |
| 33 endwhile | |
| 34 return lnum | |
| 35 endfunction | |
| 36 | |
| 37 function! s:stripped(lnum) | |
| 38 return substitute(strpart(getline(a:lnum),0,72),'^\s*','','') | |
| 39 endfunction | |
| 40 | |
| 41 function! s:optionalblock(lnum,ind,blocks,clauses) | |
| 42 let ind = a:ind | |
| 43 let clauses = '\c\<\%(\<NOT\s\+\)\@<!\%(NOT\s\+\)\=\%('.a:clauses.'\)' | |
| 44 let begin = '\c-\@<!\<\%('.a:blocks.'\)\>' | |
| 45 let beginfull = begin.'\ze.*\%(\n\%(\s*\%([*/$-].*\)\=\n\)*\)\=\s*\%('.clauses.'\)' | |
| 46 let end = '\c\<end-\%('.a:blocks.'\)\>\|\%(\.\%( \|$\)\)\@=' | |
| 47 let cline = s:stripped(a:lnum) | |
| 48 let line = s:stripped(s:prevgood(a:lnum)) | |
| 49 if cline =~? clauses "&& line !~? '^search\>' | |
| 50 call cursor(a:lnum,1) | |
| 51 let lastclause = searchpair(beginfull,clauses,end,'bWr',s:skip) | |
| 52 if getline(lastclause) =~? clauses && s:stripped(lastclause) !~? '^'.begin | |
| 53 let ind = indent(lastclause) | |
| 54 elseif lastclause > 0 | |
| 55 let ind = indent(lastclause) + &sw | |
| 56 "let ind = ind + &sw | |
| 57 endif | |
| 58 elseif line =~? clauses && cline !~? end | |
| 59 let ind = ind + &sw | |
| 60 endif | |
| 61 return ind | |
| 62 endfunction | |
| 63 | |
| 64 function! GetCobolIndent(lnum) abort | |
| 65 let minshft = 6 | |
| 66 let ashft = minshft + 1 | |
| 67 let bshft = ashft + 4 | |
| 68 " (Obsolete) numbered lines | |
| 69 if getline(a:lnum) =~? '^\s*\d\{6\}\%($\|[ */$CD-]\)' | |
| 70 return 0 | |
| 71 endif | |
| 72 let cline = s:stripped(a:lnum) | |
| 73 " Comments, etc. must start in the 7th column | |
| 74 if cline =~? '^[*/$-]' | |
| 75 return minshft | |
| 76 elseif cline =~# '^[CD]' && indent(a:lnum) == minshft | |
| 77 return minshft | |
| 78 endif | |
| 79 " Divisions, sections, and file descriptions start in area A | |
| 80 if cline =~? '\<\(DIVISION\|SECTION\)\%($\|\.\)' || cline =~? '^[FS]D\>' | |
| 81 return ashft | |
| 82 endif | |
| 83 " Fields | |
| 84 if cline =~? '^0*\(1\|77\)\>' | |
| 85 return ashft | |
| 86 endif | |
| 87 if cline =~? '^\d\+\>' | |
| 88 let cnum = matchstr(cline,'^\d\+\>') | |
| 89 let default = 0 | |
| 90 let step = -1 | |
| 91 while step < 2 | |
| 92 let lnum = a:lnum | |
| 93 while lnum > 0 && lnum < line('$') && lnum > a:lnum - 500 && lnum < a:lnum + 500 | |
| 94 let lnum = step > 0 ? nextnonblank(lnum + step) : prevnonblank(lnum + step) | |
| 95 let line = getline(lnum) | |
| 96 let lindent = indent(lnum) | |
| 97 if line =~? '^\s*\d\+\>' | |
| 98 let num = matchstr(line,'^\s*\zs\d\+\>') | |
| 99 if 0+cnum == num | |
| 100 return lindent | |
| 101 elseif 0+cnum > num && default < lindent + &sw | |
| 102 let default = lindent + &sw | |
| 103 endif | |
| 104 elseif lindent < bshft && lindent >= ashft | |
| 105 break | |
| 106 endif | |
| 107 endwhile | |
| 108 let step = step + 2 | |
| 109 endwhile | |
| 110 return default ? default : bshft | |
| 111 endif | |
| 112 let lnum = s:prevgood(a:lnum) | |
| 113 " Hit the start of the file, use "zero" indent. | |
| 114 if lnum == 0 | |
| 115 return ashft | |
| 116 endif | |
| 117 " Initial spaces are ignored | |
| 118 let line = s:stripped(lnum) | |
| 119 let ind = indent(lnum) | |
| 120 " Paragraphs. There may be some false positives. | |
| 121 if cline =~? '^\(\a[A-Z0-9-]*[A-Z0-9]\|\d[A-Z0-9-]*\a\)\.' "\s*$' | |
| 122 if cline !~? '^EXIT\s*\.' && line =~? '\.\s*$' | |
| 123 return ashft | |
| 124 endif | |
| 125 endif | |
| 126 " Paragraphs in the identification division. | |
| 127 "if cline =~? '^\(PROGRAM-ID\|AUTHOR\|INSTALLATION\|' . | |
| 128 "\ 'DATE-WRITTEN\|DATE-COMPILED\|SECURITY\)\>' | |
| 129 "return ashft | |
| 130 "endif | |
| 131 if line =~? '\.$' | |
| 132 " XXX | |
| 133 return bshft | |
| 134 endif | |
| 135 if line =~? '^PERFORM\>' | |
| 136 let perfline = substitute(line, '\c^PERFORM\s*', "", "") | |
| 137 if perfline =~? '^\%(\k\+\s\+TIMES\)\=\s*$' | |
| 138 let ind = ind + &sw | |
| 139 elseif perfline =~? '^\%(WITH\s\+TEST\|VARYING\|UNTIL\)\>.*[^.]$' | |
| 140 let ind = ind + &sw | |
| 141 endif | |
| 142 endif | |
| 143 if line =~? '^\%(IF\|THEN\|ELSE\|READ\|EVALUATE\|SEARCH\|SELECT\)\>' | |
| 144 let ind = ind + &sw | |
| 145 endif | |
| 146 let ind = s:optionalblock(a:lnum,ind,'ADD\|COMPUTE\|DIVIDE\|MULTIPLY\|SUBTRACT','ON\s\+SIZE\s\+ERROR') | |
| 147 let ind = s:optionalblock(a:lnum,ind,'STRING\|UNSTRING\|ACCEPT\|DISPLAY\|CALL','ON\s\+OVERFLOW\|ON\s\+EXCEPTION') | |
| 148 if cline !~? '^AT\s\+END\>' || line !~? '^SEARCH\>' | |
| 149 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') | |
| 150 endif | |
| 151 if cline =~? '^WHEN\>' | |
| 152 call cursor(a:lnum,1) | |
| 153 " We also search for READ so that contained AT ENDs are skipped | |
| 154 let lastclause = searchpair('\c-\@<!\<\%(SEARCH\|EVALUATE\|READ\)\>','\c\<\%(WHEN\|AT\s\+END\)\>','\c\<END-\%(SEARCH\|EVALUATE\|READ\)\>','bW',s:skip) | |
| 155 let g:foo = s:stripped(lastclause) | |
| 156 if s:stripped(lastclause) =~? '\c\<\%(WHEN\|AT\s\+END\)\>' | |
| 157 "&& s:stripped(lastclause) !~? '^\%(SEARCH\|EVALUATE\|READ\)\>' | |
| 158 let ind = indent(lastclause) | |
| 159 elseif lastclause > 0 | |
| 160 let ind = indent(lastclause) + &sw | |
| 161 endif | |
| 162 elseif line =~? '^WHEN\>' | |
| 163 let ind = ind + &sw | |
| 164 endif | |
| 165 "I'm not sure why I had this | |
| 166 "if line =~? '^ELSE\>-\@!' && line !~? '\.$' | |
| 167 "let ind = indent(s:prevgood(lnum)) | |
| 168 "endif | |
| 169 if cline =~? '^\(END\)\>-\@!' | |
| 170 " On lines with just END, 'guess' a simple shift left | |
| 171 let ind = ind - &sw | |
| 172 elseif cline =~? '^\(END-IF\|THEN\|ELSE\)\>-\@!' | |
| 173 call cursor(a:lnum,indent(a:lnum)) | |
| 174 let match = searchpair('\c-\@<!\<IF\>','\c-\@<!\%(THEN\|ELSE\)\>','\c-\@<!\<END-IF\>\zs','bnW',s:skip) | |
| 175 if match > 0 | |
| 176 let ind = indent(match) | |
| 177 endif | |
| 178 elseif cline =~? '^END-[A-Z]' | |
| 179 let beginword = matchstr(cline,'\c\<END-\zs[A-Z0-9-]\+') | |
| 180 let endword = 'END-'.beginword | |
| 181 let first = 0 | |
| 182 let suffix = '.*\%(\n\%(\%(\s*\|.\{6\}\)[*/].*\n\)*\)\=\s*' | |
| 183 if beginword =~? '^\%(ADD\|COMPUTE\|DIVIDE\|MULTIPLY\|SUBTRACT\)$' | |
| 184 let beginword = beginword . suffix . '\<\%(NOT\s\+\)\=ON\s\+SIZE\s\+ERROR' | |
| 185 let g:beginword = beginword | |
| 186 let first = 1 | |
| 187 elseif beginword =~? '^\%(STRING\|UNSTRING\)$' | |
| 188 let beginword = beginword . suffix . '\<\%(NOT\s\+\)\=ON\s\+OVERFLOW' | |
| 189 let first = 1 | |
| 190 elseif beginword =~? '^\%(ACCEPT\|DISPLAY\)$' | |
| 191 let beginword = beginword . suffix . '\<\%(NOT\s\+\)\=ON\s\+EXCEPTION' | |
| 192 let first = 1 | |
| 193 elseif beginword ==? 'CALL' | |
| 194 let beginword = beginword . suffix . '\<\%(NOT\s\+\)\=ON\s\+\%(EXCEPTION\|OVERFLOW\)' | |
| 195 let first = 1 | |
| 196 elseif beginword =~? '^\%(DELETE\|REWRITE\|START\|READ\|WRITE\)$' | |
| 197 let first = 1 | |
| 198 let beginword = beginword . suffix . '\<\%(NOT\s\+\)\=\(INVALID\s\+KEY' | |
| 199 if beginword =~? '^READ' | |
| 200 let first = 0 | |
| 201 let beginword = beginword . '\|AT\s\+END\|NO\s\+DATA' | |
| 202 elseif beginword =~? '^WRITE' | |
| 203 let beginword = beginword . '\|AT\s\+END-OF-PAGE' | |
| 204 endif | |
| 205 let beginword = beginword . '\)' | |
| 206 endif | |
| 207 call cursor(a:lnum,indent(a:lnum)) | |
| 208 let match = searchpair('\c-\@<!\<'.beginword.'\>','','\c\<'.endword.'\>\zs','bnW'.(first? 'r' : ''),s:skip) | |
| 209 if match > 0 | |
| 210 let ind = indent(match) | |
| 211 elseif cline =~? '^\(END-\(READ\|EVALUATE\|SEARCH\|PERFORM\)\)\>' | |
| 212 let ind = ind - &sw | |
| 213 endif | |
| 214 endif | |
| 215 return ind < bshft ? bshft : ind | |
| 216 endfunction |