Mercurial > hg > RemoteEditor > vim7
annotate runtime/indent/sqlanywhere.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 | 67300faee616 |
| rev | line source |
|---|---|
| 0 | 1 " Vim indent file |
| 2 " Language: SQL | |
| 3 " Maintainer: David Fishburn <fishburn at ianywhere dot com> | |
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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4 " Last Change: Mon Apr 02 2007 9:13:47 AM |
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e170173ecb68
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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5 " Version: 1.5 |
| 0 | 6 " Download: http://vim.sourceforge.net/script.php?script_id=495 |
| 7 | |
| 8 " Notes: | |
| 9 " Indenting keywords are based on Oracle and Sybase Adaptive Server | |
| 10 " Anywhere (ASA). Test indenting was done with ASA stored procedures and | |
| 11 " fuctions and Oracle packages which contain stored procedures and | |
| 12 " functions. | |
| 13 " This has not been tested against Microsoft SQL Server or | |
| 14 " Sybase Adaptive Server Enterprise (ASE) which use the Transact-SQL | |
| 15 " syntax. That syntax does not have end tags for IF's, which makes | |
| 16 " indenting more difficult. | |
| 17 " | |
| 18 " Known Issues: | |
| 19 " The Oracle MERGE statement does not have an end tag associated with | |
| 20 " it, this can leave the indent hanging to the right one too many. | |
| 21 | |
| 22 " Only load this indent file when no other was loaded. | |
| 23 if exists("b:did_indent") | |
| 24 finish | |
| 25 endif | |
| 26 let b:did_indent = 1 | |
| 27 let b:current_indent = "sqlanywhere" | |
| 28 | |
| 29 setlocal indentkeys-=0{ | |
| 30 setlocal indentkeys-=0} | |
| 31 setlocal indentkeys-=: | |
| 32 setlocal indentkeys-=0# | |
| 33 setlocal indentkeys-=e | |
| 34 | |
| 35 " This indicates formatting should take place when one of these | |
| 36 " expressions is used. These expressions would normally be something | |
| 37 " you would type at the BEGINNING of a line | |
| 38 " SQL is generally case insensitive, so this files assumes that | |
| 39 " These keywords are something that would trigger an indent LEFT, not | |
| 40 " an indent right, since the SQLBlockStart is used for those keywords | |
| 41 setlocal indentkeys+==~end,=~else,=~elseif,=~elsif,0=~when,0=) | |
| 42 | |
| 43 " GetSQLIndent is executed whenever one of the expressions | |
| 44 " in the indentkeys is typed | |
| 45 setlocal indentexpr=GetSQLIndent() | |
| 46 | |
| 47 " Only define the functions once. | |
| 48 if exists("*GetSQLIndent") | |
| 49 finish | |
| 50 endif | |
| 51 | |
| 52 " List of all the statements that start a new block. | |
| 53 " These are typically words that start a line. | |
| 54 " IS is excluded, since it is difficult to determine when the | |
| 55 " ending block is (especially for procedures/functions). | |
| 56 let s:SQLBlockStart = '^\s*\%('. | |
| 57 \ 'if\|else\|elseif\|elsif\|'. | |
| 58 \ 'while\|loop\|do\|'. | |
| 59 \ 'begin\|'. | |
| 60 \ 'case\|when\|merge\|exception'. | |
| 61 \ '\)\>' | |
| 62 let s:SQLBlockEnd = '^\s*\(end\)\>' | |
| 63 | |
| 64 " The indent level is also based on unmatched paranethesis | |
| 65 " If a line has an extra "(" increase the indent | |
| 66 " If a line has an extra ")" decrease the indent | |
| 67 function s:CountUnbalancedParan( line, paran_to_check ) | |
| 68 let l = a:line | |
| 69 let lp = substitute(l, '[^(]', '', 'g') | |
| 70 let l = a:line | |
| 71 let rp = substitute(l, '[^)]', '', 'g') | |
| 72 | |
| 73 if a:paran_to_check =~ ')' | |
| 74 " echom 'CountUnbalancedParan ) returning: ' . | |
| 75 " \ (strlen(rp) - strlen(lp)) | |
| 76 return (strlen(rp) - strlen(lp)) | |
| 77 elseif a:paran_to_check =~ '(' | |
| 78 " echom 'CountUnbalancedParan ( returning: ' . | |
| 79 " \ (strlen(lp) - strlen(rp)) | |
| 80 return (strlen(lp) - strlen(rp)) | |
| 81 else | |
| 82 " echom 'CountUnbalancedParan unknown paran to check: ' . | |
| 83 " \ a:paran_to_check | |
| 84 return 0 | |
| 85 endif | |
| 86 endfunction | |
| 87 | |
| 88 " Unindent commands based on previous indent level | |
| 89 function s:CheckToIgnoreRightParan( prev_lnum, num_levels ) | |
| 90 let lnum = a:prev_lnum | |
| 91 let line = getline(lnum) | |
| 92 let ends = 0 | |
| 93 let num_right_paran = a:num_levels | |
| 94 let ignore_paran = 0 | |
| 95 let vircol = 1 | |
| 96 | |
| 97 while num_right_paran > 0 | |
| 98 silent! exec 'norm! '.lnum."G\<bar>".vircol."\<bar>" | |
| 99 let right_paran = search( ')', 'W' ) | |
| 100 if right_paran != lnum | |
| 101 " This should not happen since there should be at least | |
| 102 " num_right_paran matches for this line | |
| 103 break | |
| 104 endif | |
| 105 let vircol = virtcol(".") | |
| 106 | |
| 107 " if getline(".") =~ '^)' | |
| 108 let matching_paran = searchpair('(', '', ')', 'bW', | |
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109 \ 's:IsColComment(line("."), col("."))') |
| 0 | 110 |
| 111 if matching_paran < 1 | |
| 112 " No match found | |
| 113 " echom 'CTIRP - no match found, ignoring' | |
| 114 break | |
| 115 endif | |
| 116 | |
| 117 if matching_paran == lnum | |
| 118 " This was not an unmatched parantenses, start the search again | |
| 119 " again after this column | |
| 120 " echom 'CTIRP - same line match, ignoring' | |
| 121 continue | |
| 122 endif | |
| 123 | |
| 124 " echom 'CTIRP - match: ' . line(".") . ' ' . getline(".") | |
| 125 | |
| 126 if getline(matching_paran) =~? '\(if\|while\)\>' | |
| 127 " echom 'CTIRP - if/while ignored: ' . line(".") . ' ' . getline(".") | |
| 128 let ignore_paran = ignore_paran + 1 | |
| 129 endif | |
| 130 | |
| 131 " One match found, decrease and check for further matches | |
| 132 let num_right_paran = num_right_paran - 1 | |
| 133 | |
| 134 endwhile | |
| 135 | |
| 136 " Fallback - just move back one | |
| 137 " return a:prev_indent - &sw | |
| 138 return ignore_paran | |
| 139 endfunction | |
| 140 | |
| 141 " Based on the keyword provided, loop through previous non empty | |
| 142 " non comment lines to find the statement that initated the keyword. | |
| 143 " Return its indent level | |
| 144 " CASE .. | |
| 145 " WHEN ... | |
| 146 " Should return indent level of CASE | |
| 147 " EXCEPTION .. | |
| 148 " WHEN ... | |
| 149 " something; | |
| 150 " WHEN ... | |
| 151 " Should return indent level of exception. | |
| 152 function s:GetStmtStarterIndent( keyword, curr_lnum ) | |
| 153 let lnum = a:curr_lnum | |
| 154 | |
| 155 " Default - reduce indent by 1 | |
| 156 let ind = indent(a:curr_lnum) - &sw | |
| 157 | |
| 158 if a:keyword =~? 'end' | |
| 159 exec 'normal! ^' | |
| 160 let stmts = '^\s*\%('. | |
| 161 \ '\<begin\>\|' . | |
| 162 \ '\%(\%(\<end\s\+\)\@<!\<loop\>\)\|' . | |
| 163 \ '\%(\%(\<end\s\+\)\@<!\<case\>\)\|' . | |
| 164 \ '\%(\%(\<end\s\+\)\@<!\<for\>\)\|' . | |
| 165 \ '\%(\%(\<end\s\+\)\@<!\<if\>\)'. | |
| 166 \ '\)' | |
| 167 let matching_lnum = searchpair(stmts, '', '\<end\>\zs', 'bW', | |
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168 \ 's:IsColComment(line("."), col(".")) == 1') |
| 0 | 169 exec 'normal! $' |
| 170 if matching_lnum > 0 && matching_lnum < a:curr_lnum | |
| 171 let ind = indent(matching_lnum) | |
| 172 endif | |
| 173 elseif a:keyword =~? 'when' | |
| 174 exec 'normal! ^' | |
| 175 let matching_lnum = searchpair( | |
| 176 \ '\%(\<end\s\+\)\@<!\<case\>\|\<exception\>\|\<merge\>', | |
| 177 \ '', | |
| 178 \ '\%(\%(\<when\s\+others\>\)\|\%(\<end\s\+case\>\)\)', | |
| 179 \ 'bW', | |
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180 \ 's:IsColComment(line("."), col(".")) == 1') |
| 0 | 181 exec 'normal! $' |
| 182 if matching_lnum > 0 && matching_lnum < a:curr_lnum | |
| 183 let ind = indent(matching_lnum) | |
| 184 else | |
| 185 let ind = indent(a:curr_lnum) | |
| 186 endif | |
| 187 endif | |
| 188 | |
| 189 return ind | |
| 190 endfunction | |
| 191 | |
| 192 | |
| 193 " Check if the line is a comment | |
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194 function s:IsLineComment(lnum) |
| 0 | 195 let rc = synIDattr( |
| 196 \ synID(a:lnum, | |
| 197 \ match(getline(a:lnum), '\S')+1, 0) | |
| 198 \ , "name") | |
| 199 \ =~? "comment" | |
| 200 | |
| 201 return rc | |
| 202 endfunction | |
| 203 | |
| 204 | |
| 205 " Check if the column is a comment | |
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206 function s:IsColComment(lnum, cnum) |
| 0 | 207 let rc = synIDattr(synID(a:lnum, a:cnum, 0), "name") |
| 208 \ =~? "comment" | |
| 209 | |
| 210 return rc | |
| 211 endfunction | |
| 212 | |
| 213 | |
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214 " Instead of returning a column position, return |
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215 " an appropriate value as a factor of shiftwidth. |
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216 function s:ModuloIndent(ind) |
| 0 | 217 let ind = a:ind |
| 218 | |
| 219 if ind > 0 | |
| 220 let modulo = ind % &shiftwidth | |
| 221 | |
| 222 if modulo > 0 | |
| 223 let ind = ind - modulo | |
| 224 endif | |
| 225 endif | |
| 226 | |
| 227 return ind | |
| 228 endfunction | |
| 229 | |
| 230 | |
| 231 " Find correct indent of a new line based upon the previous line | |
| 232 function GetSQLIndent() | |
| 233 let lnum = v:lnum | |
| 234 let ind = indent(lnum) | |
| 235 | |
| 236 " If the current line is a comment, leave the indent as is | |
| 237 " Comment out this additional check since it affects the | |
| 238 " indenting of =, and will not reindent comments as it should | |
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239 " if s:IsLineComment(lnum) == 1 |
| 0 | 240 " return ind |
| 241 " endif | |
| 242 | |
| 243 " while 1 | |
| 244 " Get previous non-blank line | |
| 245 let prevlnum = prevnonblank(lnum - 1) | |
| 246 if prevlnum <= 0 | |
| 247 return ind | |
| 248 endif | |
| 249 | |
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250 if s:IsLineComment(prevlnum) == 1 |
| 0 | 251 if getline(v:lnum) =~ '^\s*\*' |
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252 let ind = s:ModuloIndent(indent(prevlnum)) |
| 0 | 253 return ind + 1 |
| 254 endif | |
| 255 " If the previous line is a comment, then return -1 | |
| 256 " to tell Vim to use the formatoptions setting to determine | |
| 257 " the indent to use | |
| 258 " But only if the next line is blank. This would be true if | |
| 259 " the user is typing, but it would not be true if the user | |
| 260 " is reindenting the file | |
| 261 if getline(v:lnum) =~ '^\s*$' | |
| 262 return -1 | |
| 263 endif | |
| 264 endif | |
| 265 | |
| 266 " let prevline = getline(prevlnum) | |
| 267 " if prevline !~ '^\s*$' | |
| 268 " " echom 'previous non blank - break: ' . prevline | |
| 269 " break | |
| 270 " endif | |
| 271 " endwhile | |
| 272 | |
| 273 " echom 'PREVIOUS INDENT: ' . indent(prevlnum) . ' LINE: ' . getline(prevlnum) | |
| 274 | |
| 275 " This is the line you just hit return on, it is not the current line | |
| 276 " which is new and empty | |
| 277 " Based on this line, we can determine how much to indent the new | |
| 278 " line | |
| 279 | |
| 280 " Get default indent (from prev. line) | |
| 281 let ind = indent(prevlnum) | |
| 282 let prevline = getline(prevlnum) | |
| 283 | |
| 284 " Now check what's on the previous line to determine if the indent | |
| 285 " should be changed, for example IF, BEGIN, should increase the indent | |
| 286 " where END IF, END, should decrease the indent. | |
| 287 if prevline =~? s:SQLBlockStart | |
| 288 " Move indent in | |
| 289 let ind = ind + &sw | |
| 290 " echom 'prevl - SQLBlockStart - indent ' . ind . ' line: ' . prevline | |
| 291 elseif prevline =~ '[()]' | |
| 292 if prevline =~ '(' | |
| 293 let num_unmatched_left = s:CountUnbalancedParan( prevline, '(' ) | |
| 294 else | |
| 295 let num_unmatched_left = 0 | |
| 296 endif | |
| 297 if prevline =~ ')' | |
| 298 let num_unmatched_right = s:CountUnbalancedParan( prevline, ')' ) | |
| 299 else | |
| 300 let num_unmatched_right = 0 | |
| 301 " let num_unmatched_right = s:CountUnbalancedParan( prevline, ')' ) | |
| 302 endif | |
| 303 if num_unmatched_left > 0 | |
| 304 " There is a open left paranethesis | |
| 305 " increase indent | |
| 306 let ind = ind + ( &sw * num_unmatched_left ) | |
| 307 elseif num_unmatched_right > 0 | |
| 308 " if it is an unbalanced paranethesis only unindent if | |
| 309 " it was part of a command (ie create table(..) ) | |
| 310 " instead of part of an if (ie if (....) then) which should | |
| 311 " maintain the indent level | |
| 312 let ignore = s:CheckToIgnoreRightParan( prevlnum, num_unmatched_right ) | |
| 313 " echom 'prevl - ) unbalanced - CTIRP - ignore: ' . ignore | |
| 314 | |
| 315 if prevline =~ '^\s*)' | |
| 316 let ignore = ignore + 1 | |
| 317 " echom 'prevl - begins ) unbalanced ignore: ' . ignore | |
| 318 endif | |
| 319 | |
| 320 if (num_unmatched_right - ignore) > 0 | |
| 321 let ind = ind - ( &sw * (num_unmatched_right - ignore) ) | |
| 322 endif | |
| 323 | |
| 324 endif | |
| 325 endif | |
| 326 | |
| 327 | |
| 328 " echom 'CURRENT INDENT: ' . ind . ' LINE: ' . getline(v:lnum) | |
| 329 | |
| 330 " This is a new blank line since we just typed a carriage return | |
| 331 " Check current line; search for simplistic matching start-of-block | |
| 332 let line = getline(v:lnum) | |
| 333 | |
| 334 if line =~? '^\s*els' | |
| 335 " Any line when you type else will automatically back up one | |
| 336 " ident level (ie else, elseif, elsif) | |
| 337 let ind = ind - &sw | |
| 338 " echom 'curr - else - indent ' . ind | |
| 339 elseif line =~? '^\s*end\>' | |
| 340 let ind = s:GetStmtStarterIndent('end', v:lnum) | |
| 341 " General case for end | |
| 342 " let ind = ind - &sw | |
| 343 " echom 'curr - end - indent ' . ind | |
| 344 elseif line =~? '^\s*when\>' | |
| 345 let ind = s:GetStmtStarterIndent('when', v:lnum) | |
| 346 " If the WHEN clause is used with a MERGE or EXCEPTION | |
| 347 " clause, do not change the indent level, since these | |
| 348 " statements do not have a corresponding END statement. | |
| 349 " if stmt_starter =~? 'case' | |
| 350 " let ind = ind - &sw | |
| 351 " endif | |
| 352 " elseif line =~ '^\s*)\s*;\?\s*$' | |
| 353 " elseif line =~ '^\s*)' | |
| 354 elseif line =~ '^\s*)' | |
| 355 let num_unmatched_right = s:CountUnbalancedParan( line, ')' ) | |
| 356 let ignore = s:CheckToIgnoreRightParan( v:lnum, num_unmatched_right ) | |
| 357 " If the line ends in a ), then reduce the indent | |
| 358 " This catches items like: | |
| 359 " CREATE TABLE T1( | |
| 360 " c1 int, | |
| 361 " c2 int | |
| 362 " ); | |
| 363 " But we do not want to unindent a line like: | |
| 364 " IF ( c1 = 1 | |
| 365 " AND c2 = 3 ) THEN | |
| 366 " let num_unmatched_right = s:CountUnbalancedParan( line, ')' ) | |
| 367 " if num_unmatched_right > 0 | |
| 368 " elseif strpart( line, strlen(line)-1, 1 ) =~ ')' | |
| 369 " let ind = ind - &sw | |
| 370 if line =~ '^\s*)' | |
| 371 " let ignore = ignore + 1 | |
| 372 " echom 'curr - begins ) unbalanced ignore: ' . ignore | |
| 373 endif | |
| 374 | |
| 375 if (num_unmatched_right - ignore) > 0 | |
| 376 let ind = ind - ( &sw * (num_unmatched_right - ignore) ) | |
| 377 endif | |
| 378 " endif | |
| 379 endif | |
| 380 | |
| 381 " echom 'final - indent ' . ind | |
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parents:
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382 return s:ModuloIndent(ind) |
| 0 | 383 endfunction |
| 384 | |
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385 " vim:sw=4: |