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annotate runtime/indent/vhdl.vim @ 2282:a888ed7ba375 vim73
Make updating text for conceal mode simpler. A few compiler warning fixes.
| author | Bram Moolenaar <bram@vim.org> |
|---|---|
| date | Fri, 02 Jul 2010 20:20:09 +0200 |
| parents | b9740fb41986 |
| children | eb7be7b075a6 |
| rev | line source |
|---|---|
| 648 | 1 " VHDL indent ('93 syntax) |
| 646 | 2 " Language: VHDL |
| 3 " Maintainer: Gerald Lai <laigera+vim?gmail.com> | |
|
2282
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
1619
diff
changeset
|
4 " Version: 1.55 |
|
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
1619
diff
changeset
|
5 " Last Change: 2010 Jun 27 |
| 648 | 6 " URL: http://www.vim.org/scripts/script.php?script_id=1450 |
| 646 | 7 |
| 8 " only load this indent file when no other was loaded | |
| 9 if exists("b:did_indent") | |
| 10 finish | |
| 11 endif | |
| 12 let b:did_indent = 1 | |
| 13 | |
| 14 " setup indent options for local VHDL buffer | |
| 15 setlocal indentexpr=GetVHDLindent() | |
| 1121 | 16 setlocal indentkeys=!^F,o,O,0(,0) |
| 17 setlocal indentkeys+==~begin,=~end\ ,=~end\ ,=~is,=~select,=~when | |
| 646 | 18 setlocal indentkeys+==~if,=~then,=~elsif,=~else |
| 1121 | 19 setlocal indentkeys+==~case,=~loop,=~for,=~generate,=~record,=~units,=~process,=~block,=~function,=~component,=~procedure |
| 20 setlocal indentkeys+==~architecture,=~configuration,=~entity,=~package | |
| 646 | 21 |
| 22 " constants | |
| 23 " not a comment | |
| 24 let s:NC = '\%(--.*\)\@<!' | |
| 25 " end of string | |
| 26 let s:ES = '\s*\%(--.*\)\=$' | |
| 27 " no "end" keyword in front | |
| 28 let s:NE = '\%(\<end\s\+\)\@<!' | |
| 29 | |
| 1121 | 30 " option to disable alignment of generic/port mappings |
| 1619 | 31 if !exists("g:vhdl_indent_genportmap") |
| 32 let g:vhdl_indent_genportmap = 1 | |
| 1121 | 33 endif |
| 34 | |
| 35 " option to disable alignment of right-hand side assignment "<=" statements | |
| 1619 | 36 if !exists("g:vhdl_indent_rhsassign") |
| 37 let g:vhdl_indent_rhsassign = 1 | |
| 1121 | 38 endif |
| 39 | |
| 646 | 40 " only define indent function once |
| 41 if exists("*GetVHDLindent") | |
| 42 finish | |
| 43 endif | |
| 44 | |
| 45 function GetVHDLindent() | |
| 46 " store current line & string | |
| 47 let curn = v:lnum | |
| 48 let curs = getline(curn) | |
| 49 | |
| 50 " find previous line that is not a comment | |
| 51 let prevn = prevnonblank(curn - 1) | |
| 52 let prevs = getline(prevn) | |
| 53 while prevn > 0 && prevs =~ '^\s*--' | |
| 54 let prevn = prevnonblank(prevn - 1) | |
| 55 let prevs = getline(prevn) | |
| 56 endwhile | |
| 1619 | 57 let prevs_noi = substitute(prevs, '^\s*', '', '') |
| 646 | 58 |
| 59 " default indent starts as previous non-comment line's indent | |
| 60 let ind = prevn > 0 ? indent(prevn) : 0 | |
| 61 " backup default | |
| 62 let ind2 = ind | |
| 63 | |
| 648 | 64 " indent: special; kill string so it would not affect other filters |
| 65 " keywords: "report" + string | |
| 66 " where: anywhere in current or previous line | |
| 67 let s0 = s:NC.'\<report\>\s*".*"' | |
| 68 if curs =~? s0 | |
| 69 let curs = "" | |
| 70 endif | |
| 71 if prevs =~? s0 | |
| 72 let prevs = "" | |
| 73 endif | |
| 74 | |
| 646 | 75 " indent: previous line's comment position, otherwise follow next non-comment line if possible |
| 76 " keyword: "--" | |
| 77 " where: start of current line | |
| 78 if curs =~ '^\s*--' | |
| 79 let pn = curn - 1 | |
| 80 let ps = getline(pn) | |
| 1619 | 81 if curs =~ '^\s*--\s' && ps =~ '--' |
| 82 return indent(pn) + stridx(substitute(ps, '^\s*', '', ''), '--') | |
| 646 | 83 else |
| 84 " find nextnonblank line that is not a comment | |
| 85 let nn = nextnonblank(curn + 1) | |
| 86 let ns = getline(nn) | |
| 87 while nn > 0 && ns =~ '^\s*--' | |
| 88 let nn = nextnonblank(nn + 1) | |
| 89 let ns = getline(nn) | |
| 90 endwhile | |
| 91 let n = indent(nn) | |
| 92 return n != -1 ? n : ind | |
| 93 endif | |
| 94 endif | |
| 95 | |
| 96 " **************************************************************************************** | |
| 97 " indent: align generic variables & port names | |
| 98 " keywords: "generic", "map", "port" + "(", provided current line is part of mapping | |
| 99 " where: anywhere in previous 2 lines | |
| 100 " find following previous non-comment line | |
| 101 let pn = prevnonblank(prevn - 1) | |
| 102 let ps = getline(pn) | |
| 103 while pn > 0 && ps =~ '^\s*--' | |
| 104 let pn = prevnonblank(pn - 1) | |
| 105 let ps = getline(pn) | |
| 106 endwhile | |
| 649 | 107 if (curs =~ '^\s*)' || curs =~? '^\s*\%(\<\%(generic\|map\|port\)\>.*\)\@<!\S\+\s*\%(=>\s*\S\+\|:[^=]\@=\s*\%(\%(in\|out\|inout\|buffer\|linkage\)\>\|\w\+\s\+:=\)\)') && (prevs =~? s:NC.'\<\%(generic\|map\|port\)\s*(\%(\s*\w\)\=' || (ps =~? s:NC.'\<\%(generic\|map\|port\)'.s:ES && prevs =~ '^\s*(')) |
| 646 | 108 " align closing ")" with opening "(" |
| 109 if curs =~ '^\s*)' | |
| 1619 | 110 return ind2 + stridx(prevs_noi, '(') |
| 646 | 111 endif |
| 1619 | 112 let m = matchend(prevs_noi, '(\s*\ze\w') |
| 646 | 113 if m != -1 |
| 1619 | 114 return ind2 + m |
| 646 | 115 else |
| 1619 | 116 if g:vhdl_indent_genportmap |
| 117 return ind2 + stridx(prevs_noi, '(') + &sw | |
| 1121 | 118 else |
| 119 return ind2 + &sw | |
| 120 endif | |
| 646 | 121 endif |
| 122 endif | |
| 123 | |
| 124 " indent: align conditional/select statement | |
| 648 | 125 " keywords: variable + "<=" without ";" ending |
| 126 " where: start of previous line | |
| 127 if prevs =~? '^\s*\S\+\s*<=[^;]*'.s:ES | |
| 1619 | 128 if g:vhdl_indent_rhsassign |
| 129 return ind2 + matchend(prevs_noi, '<=\s*\ze.') | |
| 1121 | 130 else |
| 131 return ind2 + &sw | |
| 132 endif | |
| 646 | 133 endif |
| 134 | |
| 135 " indent: backtrace previous non-comment lines for next smaller or equal size indent | |
| 136 " keywords: "end" + "record", "units" | |
| 137 " where: start of previous line | |
| 138 " keyword: ")" | |
| 139 " where: start of previous line | |
| 140 " keyword: without "<=" + ";" ending | |
| 141 " where: anywhere in previous line | |
| 142 " keyword: "=>" + ")" ending, provided current line does not begin with ")" | |
| 143 " where: anywhere in previous line | |
| 144 " _note_: indent allowed to leave this filter | |
| 145 let m = 0 | |
| 146 if prevs =~? '^\s*end\s\+\%(record\|units\)\>' | |
| 147 let m = 3 | |
| 148 elseif prevs =~ '^\s*)' | |
| 149 let m = 1 | |
| 150 elseif prevs =~ s:NC.'\%(<=.*\)\@<!;'.s:ES || (curs !~ '^\s*)' && prevs =~ s:NC.'=>.*'.s:NC.')'.s:ES) | |
| 151 let m = 2 | |
| 152 endif | |
| 153 | |
| 154 if m > 0 | |
| 155 let pn = prevnonblank(prevn - 1) | |
| 156 let ps = getline(pn) | |
| 157 while pn > 0 | |
| 158 let t = indent(pn) | |
|
2282
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
1619
diff
changeset
|
159 if ps !~ '^\s*--' && (t < ind || (t == ind && m == 3)) |
| 646 | 160 " make sure one of these is true |
| 648 | 161 " keywords: variable + "<=" without ";" ending |
| 162 " where: start of previous non-comment line | |
| 646 | 163 " keywords: "generic", "map", "port" |
| 164 " where: anywhere in previous non-comment line | |
| 165 " keyword: "(" | |
| 166 " where: start of previous non-comment line | |
| 648 | 167 if m < 3 && ps !~? '^\s*\S\+\s*<=[^;]*'.s:ES |
| 646 | 168 if ps =~? s:NC.'\<\%(generic\|map\|port\)\>' || ps =~ '^\s*(' |
| 169 let ind = t | |
| 170 endif | |
| 171 break | |
| 172 endif | |
| 173 let ind = t | |
| 174 if m > 1 | |
| 175 " find following previous non-comment line | |
| 176 let ppn = prevnonblank(pn - 1) | |
| 177 let pps = getline(ppn) | |
| 178 while ppn > 0 && pps =~ '^\s*--' | |
| 179 let ppn = prevnonblank(ppn - 1) | |
| 180 let pps = getline(ppn) | |
| 181 endwhile | |
| 182 " indent: follow | |
| 183 " keyword: "select" | |
| 184 " where: end of following previous non-comment line | |
| 185 " keyword: "type" | |
| 186 " where: start of following previous non-comment line | |
| 187 if m == 2 | |
| 188 let s1 = s:NC.'\<select'.s:ES | |
| 189 if ps !~? s1 && pps =~? s1 | |
| 190 let ind = indent(ppn) | |
| 191 endif | |
| 192 elseif m == 3 | |
| 193 let s1 = '^\s*type\>' | |
| 194 if ps !~? s1 && pps =~? s1 | |
| 195 let ind = indent(ppn) | |
| 196 endif | |
| 197 endif | |
| 198 endif | |
| 199 break | |
| 200 endif | |
| 201 let pn = prevnonblank(pn - 1) | |
| 202 let ps = getline(pn) | |
| 203 endwhile | |
| 204 endif | |
| 205 | |
| 206 " indent: follow indent of previous opening statement, otherwise -sw | |
| 207 " keyword: "begin" | |
| 208 " where: anywhere in current line | |
| 209 if curs =~? s:NC.'\<begin\>' | |
| 210 let ind = ind - &sw | |
| 211 " find previous opening statement of | |
| 212 " keywords: "architecture", "block", "entity", "function", "generate", "procedure", "process" | |
| 213 let s2 = s:NC.s:NE.'\<\%(architecture\|block\|entity\|function\|generate\|procedure\|process\)\>' | |
| 1121 | 214 if (curs !~? s2.'.*'.s:NC.'\<begin\>.*'.s:ES && prevs =~? s2) || m == 1 |
| 646 | 215 let ind = ind + &sw |
| 216 endif | |
| 217 return ind | |
| 218 endif | |
| 219 | |
| 220 " indent: +sw if previous line is previous opening statement | |
| 221 " keywords: "record", "units" | |
| 222 " where: anywhere in current line | |
| 223 if curs =~? s:NC.s:NE.'\<\%(record\|units\)\>' | |
| 224 " find previous opening statement of | |
| 225 " keyword: "type" | |
| 226 let s3 = s:NC.s:NE.'\<type\>' | |
| 227 if curs !~? s3.'.*'.s:NC.'\<\%(record\|units\)\>.*'.s:ES && prevs =~? s3 | |
| 228 let ind = ind + &sw | |
| 229 endif | |
| 230 return ind | |
| 231 endif | |
| 232 | |
| 233 " **************************************************************************************** | |
| 234 " indent: 0 | |
| 235 " keywords: "architecture", "configuration", "entity", "library", "package" | |
| 236 " where: start of current line | |
| 237 if curs =~? '^\s*\%(architecture\|configuration\|entity\|library\|package\)\>' | |
| 238 return 0 | |
| 239 endif | |
| 240 | |
| 648 | 241 " indent: maintain indent of previous opening statement |
| 646 | 242 " keyword: "is" |
| 243 " where: start of current line | |
| 244 " find previous opening statement of | |
| 245 " keywords: "architecture", "block", "configuration", "entity", "function", "package", "procedure", "process", "type" | |
| 246 if curs =~? '^\s*\<is\>' && prevs =~? s:NC.s:NE.'\<\%(architecture\|block\|configuration\|entity\|function\|package\|procedure\|process\|type\)\>' | |
| 648 | 247 return ind2 |
| 646 | 248 endif |
| 249 | |
| 648 | 250 " indent: maintain indent of previous opening statement |
| 646 | 251 " keyword: "then" |
| 252 " where: start of current line | |
| 253 " find previous opening statement of | |
| 254 " keywords: "elsif", "if" | |
| 649 | 255 if curs =~? '^\s*\<then\>' && prevs =~? s:NC.'\%(\<elsif\>\|'.s:NE.'\<if\>\)' |
| 648 | 256 return ind2 |
| 646 | 257 endif |
| 258 | |
| 648 | 259 " indent: maintain indent of previous opening statement |
| 646 | 260 " keyword: "generate" |
| 261 " where: start of current line | |
| 262 " find previous opening statement of | |
| 263 " keywords: "for", "if" | |
| 1121 | 264 if curs =~? '^\s*\<generate\>' && prevs =~? s:NC.s:NE.'\%(\%(\<wait\s\+\)\@<!\<for\|\<if\)\>' |
| 648 | 265 return ind2 |
| 646 | 266 endif |
| 267 | |
| 268 " indent: +sw | |
| 1121 | 269 " keywords: "block", "process" |
| 270 " removed: "begin", "case", "elsif", "if", "loop", "record", "units", "while" | |
| 646 | 271 " where: anywhere in previous line |
| 1121 | 272 if prevs =~? s:NC.s:NE.'\<\%(block\|process\)\>' |
| 646 | 273 return ind + &sw |
| 274 endif | |
| 275 | |
| 276 " indent: +sw | |
| 1121 | 277 " keywords: "architecture", "configuration", "entity", "package" |
| 278 " removed: "component", "for", "when", "with" | |
| 646 | 279 " where: start of previous line |
| 1121 | 280 if prevs =~? '^\s*\%(architecture\|configuration\|entity\|package\)\>' |
| 646 | 281 return ind + &sw |
| 282 endif | |
| 283 | |
| 284 " indent: +sw | |
| 1121 | 285 " keyword: "select" |
| 286 " removed: "generate", "is", "=>" | |
| 646 | 287 " where: end of previous line |
| 1121 | 288 if prevs =~? s:NC.'\<select'.s:ES |
| 646 | 289 return ind + &sw |
| 290 endif | |
| 291 | |
| 292 " indent: +sw | |
| 1121 | 293 " keyword: "begin", "loop", "record", "units" |
| 294 " where: anywhere in previous line | |
| 295 " keyword: "component", "else", "for" | |
| 649 | 296 " where: start of previous line |
| 1121 | 297 " keyword: "generate", "is", "then", "=>" |
| 646 | 298 " where: end of previous line |
| 299 " _note_: indent allowed to leave this filter | |
| 1121 | 300 if prevs =~? s:NC.'\%(\<begin\>\|'.s:NE.'\<\%(loop\|record\|units\)\>\)' || prevs =~? '^\s*\%(component\|else\|for\)\>' || prevs =~? s:NC.'\%('.s:NE.'\<generate\|\<\%(is\|then\)\|=>\)'.s:ES |
| 646 | 301 let ind = ind + &sw |
| 302 endif | |
| 303 | |
| 304 " **************************************************************************************** | |
| 649 | 305 " indent: -sw |
| 1121 | 306 " keywords: "when", provided previous line does not begin with "when", does not end with "is" |
| 646 | 307 " where: start of current line |
| 308 let s4 = '^\s*when\>' | |
| 649 | 309 if curs =~? s4 |
| 1121 | 310 if prevs =~? s:NC.'\<is'.s:ES |
| 311 return ind | |
| 312 elseif prevs !~? s4 | |
| 649 | 313 return ind - &sw |
| 314 else | |
| 315 return ind2 | |
| 316 endif | |
| 317 endif | |
| 318 | |
| 319 " indent: -sw | |
| 1121 | 320 " keywords: "else", "elsif", "end" + "block", "for", "function", "generate", "if", "loop", "procedure", "process", "record", "units" |
| 646 | 321 " where: start of current line |
| 1121 | 322 if curs =~? '^\s*\%(else\|elsif\|end\s\+\%(block\|for\|function\|generate\|if\|loop\|procedure\|process\|record\|units\)\)\>' |
| 646 | 323 return ind - &sw |
| 324 endif | |
| 325 | |
| 648 | 326 " indent: backtrace previous non-comment lines |
| 327 " keyword: "end" + "case", "component" | |
| 646 | 328 " where: start of current line |
| 648 | 329 let m = 0 |
| 646 | 330 if curs =~? '^\s*end\s\+case\>' |
| 648 | 331 let m = 1 |
| 332 elseif curs =~? '^\s*end\s\+component\>' | |
| 333 let m = 2 | |
| 334 endif | |
| 335 | |
| 336 if m > 0 | |
| 646 | 337 " find following previous non-comment line |
| 338 let pn = prevn | |
| 339 let ps = getline(pn) | |
| 340 while pn > 0 | |
| 341 if ps !~ '^\s*--' | |
| 648 | 342 "indent: -2sw |
| 343 "keywords: "end" + "case" | |
| 344 "where: start of previous non-comment line | |
| 345 "indent: -sw | |
| 346 "keywords: "when" | |
| 347 "where: start of previous non-comment line | |
| 348 "indent: follow | |
| 349 "keywords: "case" | |
| 350 "where: start of previous non-comment line | |
| 351 if m == 1 | |
| 352 if ps =~? '^\s*end\s\+case\>' | |
| 353 return indent(pn) - 2 * &sw | |
| 354 elseif ps =~? '^\s*when\>' | |
| 355 return indent(pn) - &sw | |
| 356 elseif ps =~? '^\s*case\>' | |
| 357 return indent(pn) | |
| 358 endif | |
| 359 "indent: follow | |
| 360 "keyword: "component" | |
| 1121 | 361 "where: start of previous non-comment line |
| 648 | 362 elseif m == 2 |
| 1121 | 363 if ps =~? '^\s*component\>' |
| 648 | 364 return indent(pn) |
| 365 endif | |
| 646 | 366 endif |
| 367 endif | |
| 368 let pn = prevnonblank(pn - 1) | |
| 369 let ps = getline(pn) | |
| 370 endwhile | |
| 648 | 371 return ind - &sw |
| 646 | 372 endif |
| 373 | |
| 649 | 374 " indent: -sw |
| 375 " keyword: ")" | |
| 376 " where: start of current line | |
| 377 if curs =~ '^\s*)' | |
| 378 return ind - &sw | |
| 379 endif | |
| 380 | |
| 646 | 381 " indent: 0 |
| 382 " keywords: "end" + "architecture", "configuration", "entity", "package" | |
| 383 " where: start of current line | |
| 384 if curs =~? '^\s*end\s\+\%(architecture\|configuration\|entity\|package\)\>' | |
| 385 return 0 | |
| 386 endif | |
| 387 | |
| 388 " indent: -sw | |
| 389 " keywords: "end" + identifier | |
| 390 " where: start of current line | |
| 1121 | 391 "if curs =~? '^\s*end\s\+\w\+\>' |
| 392 if curs =~? '^\s*end\s' | |
| 646 | 393 return ind - &sw |
| 394 endif | |
| 395 | |
| 396 " **************************************************************************************** | |
| 648 | 397 " indent: maintain indent of previous opening statement |
| 646 | 398 " keywords: without "generic", "map", "port" + ":" but not ":=" + "in", "out", "inout", "buffer", "linkage", variable & ":=" |
| 649 | 399 " where: start of current line |
| 400 if curs =~? '^\s*\%(\<\%(generic\|map\|port\)\>.*\)\@<!\S\+\s*:[^=]\@=\s*\%(\%(in\|out\|inout\|buffer\|linkage\)\>\|\w\+\s\+:=\)' | |
| 646 | 401 return ind2 |
| 402 endif | |
| 403 | |
| 404 " return leftover filtered indent | |
| 405 return ind | |
| 406 endfunction |