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annotate runtime/indent/ruby.vim @ 25773:11b656e74444
Update runtime files
Commit: https://github.com/vim/vim/commit/6c391a74fe90190796ca0b0c010112948a6e75d7
Author: Bram Moolenaar <Bram@vim.org>
Date: Thu Sep 9 21:55:11 2021 +0200
Update runtime files
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Thu, 09 Sep 2021 22:00:10 +0200 |
| parents | 43593a5d873f |
| children | e3d6184b89fa |
| rev | line source |
|---|---|
| 7 | 1 " Vim indent file |
| 843 | 2 " Language: Ruby |
| 15512 | 3 " Maintainer: Andrew Radev <andrey.radev@gmail.com> |
| 4 " Previous Maintainer: Nikolai Weibull <now at bitwi.se> | |
| 4869 | 5 " URL: https://github.com/vim-ruby/vim-ruby |
| 843 | 6 " Release Coordinator: Doug Kearns <dougkearns@gmail.com> |
| 25056 | 7 " Last Change: 2021 Feb 03 |
| 530 | 8 |
| 9 " 0. Initialization {{{1 | |
| 10 " ================= | |
| 7 | 11 |
| 12 " Only load this indent file when no other was loaded. | |
| 13 if exists("b:did_indent") | |
| 14 finish | |
| 15 endif | |
| 16 let b:did_indent = 1 | |
| 17 | |
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18 if !exists('g:ruby_indent_access_modifier_style') |
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19 " Possible values: "normal", "indent", "outdent" |
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20 let g:ruby_indent_access_modifier_style = 'normal' |
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21 endif |
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22 |
| 15512 | 23 if !exists('g:ruby_indent_assignment_style') |
| 24 " Possible values: "variable", "hanging" | |
| 25 let g:ruby_indent_assignment_style = 'hanging' | |
| 26 endif | |
| 27 | |
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28 if !exists('g:ruby_indent_block_style') |
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29 " Possible values: "expression", "do" |
| 23931 | 30 let g:ruby_indent_block_style = 'do' |
| 31 endif | |
| 32 | |
| 33 if !exists('g:ruby_indent_hanging_elements') | |
| 34 " Non-zero means hanging indents are enabled, zero means disabled | |
| 35 let g:ruby_indent_hanging_elements = 1 | |
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36 endif |
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37 |
| 843 | 38 setlocal nosmartindent |
| 39 | |
| 530 | 40 " Now, set up our indentation expression and keys that trigger it. |
| 4869 | 41 setlocal indentexpr=GetRubyIndent(v:lnum) |
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42 setlocal indentkeys=0{,0},0),0],!^F,o,O,e,:,. |
| 4869 | 43 setlocal indentkeys+==end,=else,=elsif,=when,=ensure,=rescue,==begin,==end |
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44 setlocal indentkeys+==private,=protected,=public |
| 7 | 45 |
| 46 " Only define the function once. | |
| 47 if exists("*GetRubyIndent") | |
| 48 finish | |
| 49 endif | |
| 50 | |
| 530 | 51 let s:cpo_save = &cpo |
| 52 set cpo&vim | |
| 53 | |
| 54 " 1. Variables {{{1 | |
| 55 " ============ | |
| 56 | |
| 15512 | 57 " Syntax group names that are strings. |
| 58 let s:syng_string = | |
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59 \ ['String', 'Interpolation', 'InterpolationDelimiter', 'StringEscape'] |
| 530 | 60 |
| 15512 | 61 " Syntax group names that are strings or documentation. |
| 62 let s:syng_stringdoc = s:syng_string + ['Documentation'] | |
| 530 | 63 |
| 15512 | 64 " Syntax group names that are or delimit strings/symbols/regexes or are comments. |
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65 let s:syng_strcom = s:syng_stringdoc + [ |
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66 \ 'Character', |
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67 \ 'Comment', |
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68 \ 'HeredocDelimiter', |
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69 \ 'PercentRegexpDelimiter', |
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70 \ 'PercentStringDelimiter', |
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71 \ 'PercentSymbolDelimiter', |
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72 \ 'Regexp', |
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73 \ 'RegexpCharClass', |
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74 \ 'RegexpDelimiter', |
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75 \ 'RegexpEscape', |
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76 \ 'StringDelimiter', |
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77 \ 'Symbol', |
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78 \ 'SymbolDelimiter', |
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79 \ ] |
| 530 | 80 |
| 81 " Expression used to check whether we should skip a match with searchpair(). | |
| 82 let s:skip_expr = | |
| 15512 | 83 \ 'index(map('.string(s:syng_strcom).',"hlID(''ruby''.v:val)"), synID(line("."),col("."),1)) >= 0' |
| 530 | 84 |
| 85 " Regex used for words that, at the start of a line, add a level of indent. | |
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86 let s:ruby_indent_keywords = |
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87 \ '^\s*\zs\<\%(module\|class\|if\|for' . |
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88 \ '\|while\|until\|else\|elsif\|case\|when\|unless\|begin\|ensure\|rescue' . |
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89 \ '\|\%(\K\k*[!?]\?\s\+\)\=def\):\@!\>' . |
| 4869 | 90 \ '\|\%([=,*/%+-]\|<<\|>>\|:\s\)\s*\zs' . |
| 91 \ '\<\%(if\|for\|while\|until\|case\|unless\|begin\):\@!\>' | |
| 530 | 92 |
| 93 " Regex used for words that, at the start of a line, remove a level of indent. | |
| 94 let s:ruby_deindent_keywords = | |
| 4869 | 95 \ '^\s*\zs\<\%(ensure\|else\|rescue\|elsif\|when\|end\):\@!\>' |
| 530 | 96 |
| 97 " Regex that defines the start-match for the 'end' keyword. | |
| 98 "let s:end_start_regex = '\%(^\|[^.]\)\<\%(module\|class\|def\|if\|for\|while\|until\|case\|unless\|begin\|do\)\>' | |
| 99 " TODO: the do here should be restricted somewhat (only at end of line)? | |
| 4869 | 100 let s:end_start_regex = |
| 101 \ '\C\%(^\s*\|[=,*/%+\-|;{]\|<<\|>>\|:\s\)\s*\zs' . | |
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102 \ '\<\%(module\|class\|if\|for\|while\|until\|case\|unless\|begin' . |
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103 \ '\|\%(\K\k*[!?]\?\s\+\)\=def\):\@!\>' . |
| 4869 | 104 \ '\|\%(^\|[^.:@$]\)\@<=\<do:\@!\>' |
| 530 | 105 |
| 106 " Regex that defines the middle-match for the 'end' keyword. | |
| 4869 | 107 let s:end_middle_regex = '\<\%(ensure\|else\|\%(\%(^\|;\)\s*\)\@<=\<rescue:\@!\>\|when\|elsif\):\@!\>' |
| 530 | 108 |
| 109 " Regex that defines the end-match for the 'end' keyword. | |
| 4869 | 110 let s:end_end_regex = '\%(^\|[^.:@$]\)\@<=\<end:\@!\>' |
| 530 | 111 |
| 112 " Expression used for searchpair() call for finding match for 'end' keyword. | |
| 113 let s:end_skip_expr = s:skip_expr . | |
| 114 \ ' || (expand("<cword>") == "do"' . | |
| 4869 | 115 \ ' && getline(".") =~ "^\\s*\\<\\(while\\|until\\|for\\):\\@!\\>")' |
| 530 | 116 |
| 117 " Regex that defines continuation lines, not including (, {, or [. | |
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118 let s:non_bracket_continuation_regex = |
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119 \ '\%([\\.,:*/%+]\|\<and\|\<or\|\%(<%\)\@<![=-]\|:\@<![^[:alnum:]:][|&?]\|||\|&&\)\s*\%(#.*\)\=$' |
| 530 | 120 |
| 121 " Regex that defines continuation lines. | |
| 4869 | 122 let s:continuation_regex = |
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123 \ '\%(%\@<![({[\\.,:*/%+]\|\<and\|\<or\|\%(<%\)\@<![=-]\|:\@<![^[:alnum:]:][|&?]\|||\|&&\)\s*\%(#.*\)\=$' |
| 4869 | 124 |
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125 " Regex that defines continuable keywords |
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126 let s:continuable_regex = |
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127 \ '\C\%(^\s*\|[=,*/%+\-|;{]\|<<\|>>\|:\s\)\s*\zs' . |
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128 \ '\<\%(if\|for\|while\|until\|unless\):\@!\>' |
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129 |
| 4869 | 130 " Regex that defines bracket continuations |
| 131 let s:bracket_continuation_regex = '%\@<!\%([({[]\)\s*\%(#.*\)\=$' | |
| 132 | |
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133 " Regex that defines dot continuations |
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134 let s:dot_continuation_regex = '%\@<!\.\s*\%(#.*\)\=$' |
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135 |
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136 " Regex that defines backslash continuations |
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137 let s:backslash_continuation_regex = '%\@<!\\\s*$' |
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138 |
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139 " Regex that defines end of bracket continuation followed by another continuation |
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140 let s:bracket_switch_continuation_regex = '^\([^(]\+\zs).\+\)\+'.s:continuation_regex |
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141 |
| 4869 | 142 " Regex that defines the first part of a splat pattern |
| 143 let s:splat_regex = '[[,(]\s*\*\s*\%(#.*\)\=$' | |
| 530 | 144 |
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145 " Regex that describes all indent access modifiers |
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146 let s:access_modifier_regex = '\C^\s*\%(public\|protected\|private\)\s*\%(#.*\)\=$' |
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147 |
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148 " Regex that describes the indent access modifiers (excludes public) |
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149 let s:indent_access_modifier_regex = '\C^\s*\%(protected\|private\)\s*\%(#.*\)\=$' |
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150 |
| 530 | 151 " Regex that defines blocks. |
| 4869 | 152 " |
| 153 " Note that there's a slight problem with this regex and s:continuation_regex. | |
| 154 " Code like this will be matched by both: | |
| 155 " | |
| 156 " method_call do |(a, b)| | |
| 157 " | |
| 158 " The reason is that the pipe matches a hanging "|" operator. | |
| 159 " | |
| 530 | 160 let s:block_regex = |
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161 \ '\%(\<do:\@!\>\|%\@<!{\)\s*\%(|[^|]*|\)\=\s*\%(#.*\)\=$' |
| 4869 | 162 |
| 163 let s:block_continuation_regex = '^\s*[^])}\t ].*'.s:block_regex | |
| 530 | 164 |
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165 " Regex that describes a leading operator (only a method call's dot for now) |
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166 let s:leading_operator_regex = '^\s*\%(&\=\.\)' |
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167 |
| 15512 | 168 " 2. GetRubyIndent Function {{{1 |
| 169 " ========================= | |
| 170 | |
| 171 function! GetRubyIndent(...) abort | |
| 172 " 2.1. Setup {{{2 | |
| 173 " ---------- | |
| 174 | |
| 175 let indent_info = {} | |
| 176 | |
| 177 " The value of a single shift-width | |
| 178 if exists('*shiftwidth') | |
| 179 let indent_info.sw = shiftwidth() | |
| 180 else | |
| 181 let indent_info.sw = &sw | |
| 182 endif | |
| 183 | |
| 184 " For the current line, use the first argument if given, else v:lnum | |
| 185 let indent_info.clnum = a:0 ? a:1 : v:lnum | |
| 186 let indent_info.cline = getline(indent_info.clnum) | |
| 187 | |
| 188 " Set up variables for restoring position in file. Could use clnum here. | |
| 189 let indent_info.col = col('.') | |
| 190 | |
| 191 " 2.2. Work on the current line {{{2 | |
| 192 " ----------------------------- | |
| 193 let indent_callback_names = [ | |
| 194 \ 's:AccessModifier', | |
| 195 \ 's:ClosingBracketOnEmptyLine', | |
| 196 \ 's:BlockComment', | |
| 197 \ 's:DeindentingKeyword', | |
| 198 \ 's:MultilineStringOrLineComment', | |
| 199 \ 's:ClosingHeredocDelimiter', | |
| 200 \ 's:LeadingOperator', | |
| 201 \ ] | |
| 202 | |
| 203 for callback_name in indent_callback_names | |
| 204 " Decho "Running: ".callback_name | |
| 205 let indent = call(function(callback_name), [indent_info]) | |
| 206 | |
| 207 if indent >= 0 | |
| 208 " Decho "Match: ".callback_name." indent=".indent." info=".string(indent_info) | |
| 209 return indent | |
| 210 endif | |
| 211 endfor | |
| 212 | |
| 213 " 2.3. Work on the previous line. {{{2 | |
| 214 " ------------------------------- | |
| 215 | |
| 216 " Special case: we don't need the real s:PrevNonBlankNonString for an empty | |
| 217 " line inside a string. And that call can be quite expensive in that | |
| 218 " particular situation. | |
| 219 let indent_callback_names = [ | |
| 220 \ 's:EmptyInsideString', | |
| 221 \ ] | |
| 222 | |
| 223 for callback_name in indent_callback_names | |
| 224 " Decho "Running: ".callback_name | |
| 225 let indent = call(function(callback_name), [indent_info]) | |
| 226 | |
| 227 if indent >= 0 | |
| 228 " Decho "Match: ".callback_name." indent=".indent." info=".string(indent_info) | |
| 229 return indent | |
| 230 endif | |
| 231 endfor | |
| 232 | |
| 233 " Previous line number | |
| 234 let indent_info.plnum = s:PrevNonBlankNonString(indent_info.clnum - 1) | |
| 235 let indent_info.pline = getline(indent_info.plnum) | |
| 236 | |
| 237 let indent_callback_names = [ | |
| 238 \ 's:StartOfFile', | |
| 239 \ 's:AfterAccessModifier', | |
| 240 \ 's:ContinuedLine', | |
| 241 \ 's:AfterBlockOpening', | |
| 242 \ 's:AfterHangingSplat', | |
| 243 \ 's:AfterUnbalancedBracket', | |
| 244 \ 's:AfterLeadingOperator', | |
| 245 \ 's:AfterEndKeyword', | |
| 246 \ 's:AfterIndentKeyword', | |
| 247 \ ] | |
| 248 | |
| 249 for callback_name in indent_callback_names | |
| 250 " Decho "Running: ".callback_name | |
| 251 let indent = call(function(callback_name), [indent_info]) | |
| 252 | |
| 253 if indent >= 0 | |
| 254 " Decho "Match: ".callback_name." indent=".indent." info=".string(indent_info) | |
| 255 return indent | |
| 256 endif | |
| 257 endfor | |
| 258 | |
| 259 " 2.4. Work on the MSL line. {{{2 | |
| 260 " -------------------------- | |
| 261 let indent_callback_names = [ | |
| 262 \ 's:PreviousNotMSL', | |
| 263 \ 's:IndentingKeywordInMSL', | |
| 264 \ 's:ContinuedHangingOperator', | |
| 265 \ ] | |
| 266 | |
| 267 " Most Significant line based on the previous one -- in case it's a | |
| 25773 | 268 " continuation of something above |
| 15512 | 269 let indent_info.plnum_msl = s:GetMSL(indent_info.plnum) |
| 270 | |
| 271 for callback_name in indent_callback_names | |
| 272 " Decho "Running: ".callback_name | |
| 273 let indent = call(function(callback_name), [indent_info]) | |
| 274 | |
| 275 if indent >= 0 | |
| 276 " Decho "Match: ".callback_name." indent=".indent." info=".string(indent_info) | |
| 277 return indent | |
| 278 endif | |
| 279 endfor | |
| 280 | |
| 281 " }}}2 | |
| 282 | |
| 283 " By default, just return the previous line's indent | |
| 284 " Decho "Default case matched" | |
| 285 return indent(indent_info.plnum) | |
| 286 endfunction | |
| 287 | |
| 288 " 3. Indenting Logic Callbacks {{{1 | |
| 289 " ============================ | |
| 290 | |
| 291 function! s:AccessModifier(cline_info) abort | |
| 292 let info = a:cline_info | |
| 293 | |
| 294 " If this line is an access modifier keyword, align according to the closest | |
| 295 " class declaration. | |
| 296 if g:ruby_indent_access_modifier_style == 'indent' | |
| 297 if s:Match(info.clnum, s:access_modifier_regex) | |
| 298 let class_lnum = s:FindContainingClass() | |
| 299 if class_lnum > 0 | |
| 300 return indent(class_lnum) + info.sw | |
| 301 endif | |
| 302 endif | |
| 303 elseif g:ruby_indent_access_modifier_style == 'outdent' | |
| 304 if s:Match(info.clnum, s:access_modifier_regex) | |
| 305 let class_lnum = s:FindContainingClass() | |
| 306 if class_lnum > 0 | |
| 307 return indent(class_lnum) | |
| 308 endif | |
| 309 endif | |
| 310 endif | |
| 311 | |
| 312 return -1 | |
| 313 endfunction | |
| 314 | |
| 315 function! s:ClosingBracketOnEmptyLine(cline_info) abort | |
| 316 let info = a:cline_info | |
| 317 | |
| 318 " If we got a closing bracket on an empty line, find its match and indent | |
| 319 " according to it. For parentheses we indent to its column - 1, for the | |
| 320 " others we indent to the containing line's MSL's level. Return -1 if fail. | |
| 321 let col = matchend(info.cline, '^\s*[]})]') | |
| 322 | |
| 323 if col > 0 && !s:IsInStringOrComment(info.clnum, col) | |
| 324 call cursor(info.clnum, col) | |
| 325 let closing_bracket = info.cline[col - 1] | |
| 326 let bracket_pair = strpart('(){}[]', stridx(')}]', closing_bracket) * 2, 2) | |
| 327 | |
| 328 if searchpair(escape(bracket_pair[0], '\['), '', bracket_pair[1], 'bW', s:skip_expr) > 0 | |
| 329 if closing_bracket == ')' && col('.') != col('$') - 1 | |
| 23931 | 330 if g:ruby_indent_hanging_elements |
| 331 let ind = virtcol('.') - 1 | |
| 332 else | |
| 333 let ind = indent(line('.')) | |
| 334 end | |
| 15512 | 335 elseif g:ruby_indent_block_style == 'do' |
| 336 let ind = indent(line('.')) | |
| 337 else " g:ruby_indent_block_style == 'expression' | |
| 338 let ind = indent(s:GetMSL(line('.'))) | |
| 339 endif | |
| 340 endif | |
| 341 | |
| 342 return ind | |
| 343 endif | |
| 344 | |
| 345 return -1 | |
| 346 endfunction | |
| 347 | |
| 348 function! s:BlockComment(cline_info) abort | |
| 349 " If we have a =begin or =end set indent to first column. | |
| 350 if match(a:cline_info.cline, '^\s*\%(=begin\|=end\)$') != -1 | |
| 351 return 0 | |
| 352 endif | |
| 353 return -1 | |
| 354 endfunction | |
| 355 | |
| 356 function! s:DeindentingKeyword(cline_info) abort | |
| 357 let info = a:cline_info | |
| 358 | |
| 359 " If we have a deindenting keyword, find its match and indent to its level. | |
| 360 " TODO: this is messy | |
| 361 if s:Match(info.clnum, s:ruby_deindent_keywords) | |
| 362 call cursor(info.clnum, 1) | |
| 363 | |
| 364 if searchpair(s:end_start_regex, s:end_middle_regex, s:end_end_regex, 'bW', | |
| 365 \ s:end_skip_expr) > 0 | |
| 366 let msl = s:GetMSL(line('.')) | |
| 367 let line = getline(line('.')) | |
| 368 | |
| 369 if s:IsAssignment(line, col('.')) && | |
| 370 \ strpart(line, col('.') - 1, 2) !~ 'do' | |
| 371 " assignment to case/begin/etc, on the same line | |
| 372 if g:ruby_indent_assignment_style == 'hanging' | |
| 373 " hanging indent | |
| 374 let ind = virtcol('.') - 1 | |
| 375 else | |
| 376 " align with variable | |
| 377 let ind = indent(line('.')) | |
| 378 endif | |
| 379 elseif g:ruby_indent_block_style == 'do' | |
| 380 " align to line of the "do", not to the MSL | |
| 381 let ind = indent(line('.')) | |
| 382 elseif getline(msl) =~ '=\s*\(#.*\)\=$' | |
| 383 " in the case of assignment to the MSL, align to the starting line, | |
| 384 " not to the MSL | |
| 385 let ind = indent(line('.')) | |
| 386 else | |
| 387 " align to the MSL | |
| 388 let ind = indent(msl) | |
| 389 endif | |
| 390 endif | |
| 391 return ind | |
| 392 endif | |
| 393 | |
| 394 return -1 | |
| 395 endfunction | |
| 396 | |
| 397 function! s:MultilineStringOrLineComment(cline_info) abort | |
| 398 let info = a:cline_info | |
| 399 | |
| 400 " If we are in a multi-line string or line-comment, don't do anything to it. | |
| 401 if s:IsInStringOrDocumentation(info.clnum, matchend(info.cline, '^\s*') + 1) | |
| 402 return indent(info.clnum) | |
| 403 endif | |
| 404 return -1 | |
| 405 endfunction | |
| 406 | |
| 407 function! s:ClosingHeredocDelimiter(cline_info) abort | |
| 408 let info = a:cline_info | |
| 409 | |
| 410 " If we are at the closing delimiter of a "<<" heredoc-style string, set the | |
| 411 " indent to 0. | |
| 412 if info.cline =~ '^\k\+\s*$' | |
| 413 \ && s:IsInStringDelimiter(info.clnum, 1) | |
| 414 \ && search('\V<<'.info.cline, 'nbW') > 0 | |
| 415 return 0 | |
| 416 endif | |
| 417 | |
| 418 return -1 | |
| 419 endfunction | |
| 420 | |
| 421 function! s:LeadingOperator(cline_info) abort | |
| 422 " If the current line starts with a leading operator, add a level of indent. | |
| 423 if s:Match(a:cline_info.clnum, s:leading_operator_regex) | |
| 424 return indent(s:GetMSL(a:cline_info.clnum)) + a:cline_info.sw | |
| 425 endif | |
| 426 return -1 | |
| 427 endfunction | |
| 428 | |
| 429 function! s:EmptyInsideString(pline_info) abort | |
| 430 " If the line is empty and inside a string (the previous line is a string, | |
| 431 " too), use the previous line's indent | |
| 432 let info = a:pline_info | |
| 433 | |
| 434 let plnum = prevnonblank(info.clnum - 1) | |
| 435 let pline = getline(plnum) | |
| 436 | |
| 437 if info.cline =~ '^\s*$' | |
| 438 \ && s:IsInStringOrComment(plnum, 1) | |
| 439 \ && s:IsInStringOrComment(plnum, strlen(pline)) | |
| 440 return indent(plnum) | |
| 441 endif | |
| 442 return -1 | |
| 443 endfunction | |
| 444 | |
| 445 function! s:StartOfFile(pline_info) abort | |
| 446 " At the start of the file use zero indent. | |
| 447 if a:pline_info.plnum == 0 | |
| 448 return 0 | |
| 449 endif | |
| 450 return -1 | |
| 451 endfunction | |
| 452 | |
| 453 function! s:AfterAccessModifier(pline_info) abort | |
| 454 let info = a:pline_info | |
| 455 | |
| 456 if g:ruby_indent_access_modifier_style == 'indent' | |
| 457 " If the previous line was a private/protected keyword, add a | |
| 458 " level of indent. | |
| 459 if s:Match(info.plnum, s:indent_access_modifier_regex) | |
| 460 return indent(info.plnum) + info.sw | |
| 461 endif | |
| 462 elseif g:ruby_indent_access_modifier_style == 'outdent' | |
| 463 " If the previous line was a private/protected/public keyword, add | |
| 464 " a level of indent, since the keyword has been out-dented. | |
| 465 if s:Match(info.plnum, s:access_modifier_regex) | |
| 466 return indent(info.plnum) + info.sw | |
| 467 endif | |
| 468 endif | |
| 469 return -1 | |
| 470 endfunction | |
| 471 | |
| 472 " Example: | |
| 473 " | |
| 474 " if foo || bar || | |
| 475 " baz || bing | |
| 476 " puts "foo" | |
| 477 " end | |
| 478 " | |
| 479 function! s:ContinuedLine(pline_info) abort | |
| 480 let info = a:pline_info | |
| 481 | |
| 482 let col = s:Match(info.plnum, s:ruby_indent_keywords) | |
| 483 if s:Match(info.plnum, s:continuable_regex) && | |
| 484 \ s:Match(info.plnum, s:continuation_regex) | |
| 485 if col > 0 && s:IsAssignment(info.pline, col) | |
| 486 if g:ruby_indent_assignment_style == 'hanging' | |
| 487 " hanging indent | |
| 488 let ind = col - 1 | |
| 489 else | |
| 490 " align with variable | |
| 491 let ind = indent(info.plnum) | |
| 492 endif | |
| 493 else | |
| 494 let ind = indent(s:GetMSL(info.plnum)) | |
| 495 endif | |
| 496 return ind + info.sw + info.sw | |
| 497 endif | |
| 498 return -1 | |
| 499 endfunction | |
| 500 | |
| 501 function! s:AfterBlockOpening(pline_info) abort | |
| 502 let info = a:pline_info | |
| 503 | |
| 504 " If the previous line ended with a block opening, add a level of indent. | |
| 505 if s:Match(info.plnum, s:block_regex) | |
| 506 if g:ruby_indent_block_style == 'do' | |
| 507 " don't align to the msl, align to the "do" | |
| 508 let ind = indent(info.plnum) + info.sw | |
| 509 else | |
| 510 let plnum_msl = s:GetMSL(info.plnum) | |
| 511 | |
| 512 if getline(plnum_msl) =~ '=\s*\(#.*\)\=$' | |
| 513 " in the case of assignment to the msl, align to the starting line, | |
| 514 " not to the msl | |
| 515 let ind = indent(info.plnum) + info.sw | |
| 516 else | |
| 517 let ind = indent(plnum_msl) + info.sw | |
| 518 endif | |
| 519 endif | |
| 520 | |
| 521 return ind | |
| 522 endif | |
| 523 | |
| 524 return -1 | |
| 525 endfunction | |
| 526 | |
| 527 function! s:AfterLeadingOperator(pline_info) abort | |
| 528 " If the previous line started with a leading operator, use its MSL's level | |
| 529 " of indent | |
| 530 if s:Match(a:pline_info.plnum, s:leading_operator_regex) | |
| 531 return indent(s:GetMSL(a:pline_info.plnum)) | |
| 532 endif | |
| 533 return -1 | |
| 534 endfunction | |
| 535 | |
| 536 function! s:AfterHangingSplat(pline_info) abort | |
| 537 let info = a:pline_info | |
| 538 | |
| 539 " If the previous line ended with the "*" of a splat, add a level of indent | |
| 540 if info.pline =~ s:splat_regex | |
| 541 return indent(info.plnum) + info.sw | |
| 542 endif | |
| 543 return -1 | |
| 544 endfunction | |
| 545 | |
| 546 function! s:AfterUnbalancedBracket(pline_info) abort | |
| 547 let info = a:pline_info | |
| 548 | |
| 549 " If the previous line contained unclosed opening brackets and we are still | |
| 550 " in them, find the rightmost one and add indent depending on the bracket | |
| 551 " type. | |
| 552 " | |
| 553 " If it contained hanging closing brackets, find the rightmost one, find its | |
| 554 " match and indent according to that. | |
| 555 if info.pline =~ '[[({]' || info.pline =~ '[])}]\s*\%(#.*\)\=$' | |
| 556 let [opening, closing] = s:ExtraBrackets(info.plnum) | |
| 557 | |
| 558 if opening.pos != -1 | |
| 23931 | 559 if !g:ruby_indent_hanging_elements |
| 560 return indent(info.plnum) + info.sw | |
| 561 elseif opening.type == '(' && searchpair('(', '', ')', 'bW', s:skip_expr) > 0 | |
| 15512 | 562 if col('.') + 1 == col('$') |
| 563 return indent(info.plnum) + info.sw | |
| 564 else | |
| 565 return virtcol('.') | |
| 566 endif | |
| 567 else | |
| 568 let nonspace = matchend(info.pline, '\S', opening.pos + 1) - 1 | |
| 569 return nonspace > 0 ? nonspace : indent(info.plnum) + info.sw | |
| 570 endif | |
| 571 elseif closing.pos != -1 | |
| 572 call cursor(info.plnum, closing.pos + 1) | |
| 573 normal! % | |
| 574 | |
| 575 if s:Match(line('.'), s:ruby_indent_keywords) | |
| 576 return indent('.') + info.sw | |
| 577 else | |
| 578 return indent(s:GetMSL(line('.'))) | |
| 579 endif | |
| 580 else | |
| 581 call cursor(info.clnum, info.col) | |
| 582 end | |
| 583 endif | |
| 584 | |
| 585 return -1 | |
| 586 endfunction | |
| 587 | |
| 588 function! s:AfterEndKeyword(pline_info) abort | |
| 589 let info = a:pline_info | |
| 590 " If the previous line ended with an "end", match that "end"s beginning's | |
| 591 " indent. | |
| 592 let col = s:Match(info.plnum, '\%(^\|[^.:@$]\)\<end\>\s*\%(#.*\)\=$') | |
| 593 if col > 0 | |
| 594 call cursor(info.plnum, col) | |
| 595 if searchpair(s:end_start_regex, '', s:end_end_regex, 'bW', | |
| 596 \ s:end_skip_expr) > 0 | |
| 597 let n = line('.') | |
| 598 let ind = indent('.') | |
| 599 let msl = s:GetMSL(n) | |
| 600 if msl != n | |
| 601 let ind = indent(msl) | |
| 602 end | |
| 603 return ind | |
| 604 endif | |
| 605 end | |
| 606 return -1 | |
| 607 endfunction | |
| 608 | |
| 609 function! s:AfterIndentKeyword(pline_info) abort | |
| 610 let info = a:pline_info | |
| 611 let col = s:Match(info.plnum, s:ruby_indent_keywords) | |
| 612 | |
| 613 if col > 0 | |
| 614 call cursor(info.plnum, col) | |
| 615 let ind = virtcol('.') - 1 + info.sw | |
| 616 " TODO: make this better (we need to count them) (or, if a searchpair | |
| 617 " fails, we know that something is lacking an end and thus we indent a | |
| 618 " level | |
| 619 if s:Match(info.plnum, s:end_end_regex) | |
| 620 let ind = indent('.') | |
| 621 elseif s:IsAssignment(info.pline, col) | |
| 622 if g:ruby_indent_assignment_style == 'hanging' | |
| 623 " hanging indent | |
| 624 let ind = col + info.sw - 1 | |
| 625 else | |
| 626 " align with variable | |
| 627 let ind = indent(info.plnum) + info.sw | |
| 628 endif | |
| 629 endif | |
| 630 return ind | |
| 631 endif | |
| 632 | |
| 633 return -1 | |
| 634 endfunction | |
| 635 | |
| 636 function! s:PreviousNotMSL(msl_info) abort | |
| 637 let info = a:msl_info | |
| 638 | |
| 639 " If the previous line wasn't a MSL | |
| 640 if info.plnum != info.plnum_msl | |
| 641 " If previous line ends bracket and begins non-bracket continuation decrease indent by 1. | |
| 642 if s:Match(info.plnum, s:bracket_switch_continuation_regex) | |
| 643 " TODO (2016-10-07) Wrong/unused? How could it be "1"? | |
| 644 return indent(info.plnum) - 1 | |
| 645 " If previous line is a continuation return its indent. | |
| 23931 | 646 elseif s:Match(info.plnum, s:non_bracket_continuation_regex) |
| 15512 | 647 return indent(info.plnum) |
| 648 endif | |
| 649 endif | |
| 650 | |
| 651 return -1 | |
| 652 endfunction | |
| 653 | |
| 654 function! s:IndentingKeywordInMSL(msl_info) abort | |
| 655 let info = a:msl_info | |
| 656 " If the MSL line had an indenting keyword in it, add a level of indent. | |
| 657 " TODO: this does not take into account contrived things such as | |
| 658 " module Foo; class Bar; end | |
| 659 let col = s:Match(info.plnum_msl, s:ruby_indent_keywords) | |
| 660 if col > 0 | |
| 661 let ind = indent(info.plnum_msl) + info.sw | |
| 662 if s:Match(info.plnum_msl, s:end_end_regex) | |
| 663 let ind = ind - info.sw | |
| 664 elseif s:IsAssignment(getline(info.plnum_msl), col) | |
| 665 if g:ruby_indent_assignment_style == 'hanging' | |
| 666 " hanging indent | |
| 667 let ind = col + info.sw - 1 | |
| 668 else | |
| 669 " align with variable | |
| 670 let ind = indent(info.plnum_msl) + info.sw | |
| 671 endif | |
| 672 endif | |
| 673 return ind | |
| 674 endif | |
| 675 return -1 | |
| 676 endfunction | |
| 677 | |
| 678 function! s:ContinuedHangingOperator(msl_info) abort | |
| 679 let info = a:msl_info | |
| 680 | |
| 681 " If the previous line ended with [*+/.,-=], but wasn't a block ending or a | |
| 682 " closing bracket, indent one extra level. | |
| 683 if s:Match(info.plnum_msl, s:non_bracket_continuation_regex) && !s:Match(info.plnum_msl, '^\s*\([\])}]\|end\)') | |
| 684 if info.plnum_msl == info.plnum | |
| 685 let ind = indent(info.plnum_msl) + info.sw | |
| 686 else | |
| 687 let ind = indent(info.plnum_msl) | |
| 688 endif | |
| 689 return ind | |
| 690 endif | |
| 691 | |
| 692 return -1 | |
| 693 endfunction | |
| 694 | |
| 695 " 4. Auxiliary Functions {{{1 | |
| 530 | 696 " ====================== |
| 697 | |
| 15512 | 698 function! s:IsInRubyGroup(groups, lnum, col) abort |
| 699 let ids = map(copy(a:groups), 'hlID("ruby".v:val)') | |
| 700 return index(ids, synID(a:lnum, a:col, 1)) >= 0 | |
| 701 endfunction | |
| 702 | |
| 530 | 703 " Check if the character at lnum:col is inside a string, comment, or is ascii. |
| 15512 | 704 function! s:IsInStringOrComment(lnum, col) abort |
| 705 return s:IsInRubyGroup(s:syng_strcom, a:lnum, a:col) | |
| 530 | 706 endfunction |
| 707 | |
| 708 " Check if the character at lnum:col is inside a string. | |
| 15512 | 709 function! s:IsInString(lnum, col) abort |
| 710 return s:IsInRubyGroup(s:syng_string, a:lnum, a:col) | |
| 530 | 711 endfunction |
| 712 | |
| 713 " Check if the character at lnum:col is inside a string or documentation. | |
| 15512 | 714 function! s:IsInStringOrDocumentation(lnum, col) abort |
| 715 return s:IsInRubyGroup(s:syng_stringdoc, a:lnum, a:col) | |
| 530 | 716 endfunction |
| 717 | |
| 4869 | 718 " Check if the character at lnum:col is inside a string delimiter |
| 15512 | 719 function! s:IsInStringDelimiter(lnum, col) abort |
|
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70ce979e76bc
Update a few runtime files.
Bram Moolenaar <Bram@vim.org>
parents:
15512
diff
changeset
|
720 return s:IsInRubyGroup( |
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70ce979e76bc
Update a few runtime files.
Bram Moolenaar <Bram@vim.org>
parents:
15512
diff
changeset
|
721 \ ['HeredocDelimiter', 'PercentStringDelimiter', 'StringDelimiter'], |
|
70ce979e76bc
Update a few runtime files.
Bram Moolenaar <Bram@vim.org>
parents:
15512
diff
changeset
|
722 \ a:lnum, a:col |
|
70ce979e76bc
Update a few runtime files.
Bram Moolenaar <Bram@vim.org>
parents:
15512
diff
changeset
|
723 \ ) |
| 15512 | 724 endfunction |
| 725 | |
| 726 function! s:IsAssignment(str, pos) abort | |
| 727 return strpart(a:str, 0, a:pos - 1) =~ '=\s*$' | |
| 4869 | 728 endfunction |
| 729 | |
| 530 | 730 " Find line above 'lnum' that isn't empty, in a comment, or in a string. |
| 15512 | 731 function! s:PrevNonBlankNonString(lnum) abort |
| 530 | 732 let in_block = 0 |
| 733 let lnum = prevnonblank(a:lnum) | |
| 734 while lnum > 0 | |
| 735 " Go in and out of blocks comments as necessary. | |
| 736 " If the line isn't empty (with opt. comment) or in a string, end search. | |
| 737 let line = getline(lnum) | |
| 4869 | 738 if line =~ '^=begin' |
| 530 | 739 if in_block |
| 4869 | 740 let in_block = 0 |
| 530 | 741 else |
| 4869 | 742 break |
| 530 | 743 endif |
| 4869 | 744 elseif !in_block && line =~ '^=end' |
| 530 | 745 let in_block = 1 |
| 746 elseif !in_block && line !~ '^\s*#.*$' && !(s:IsInStringOrComment(lnum, 1) | |
| 4869 | 747 \ && s:IsInStringOrComment(lnum, strlen(line))) |
| 530 | 748 break |
| 749 endif | |
| 750 let lnum = prevnonblank(lnum - 1) | |
| 751 endwhile | |
| 752 return lnum | |
| 753 endfunction | |
| 754 | |
| 755 " Find line above 'lnum' that started the continuation 'lnum' may be part of. | |
| 15512 | 756 function! s:GetMSL(lnum) abort |
| 530 | 757 " Start on the line we're at and use its indent. |
| 758 let msl = a:lnum | |
| 759 let lnum = s:PrevNonBlankNonString(a:lnum - 1) | |
| 760 while lnum > 0 | |
| 761 " If we have a continuation line, or we're in a string, use line as MSL. | |
| 762 " Otherwise, terminate search as we have found our MSL already. | |
| 763 let line = getline(lnum) | |
| 4869 | 764 |
|
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765 if !s:Match(msl, s:backslash_continuation_regex) && |
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766 \ s:Match(lnum, s:backslash_continuation_regex) |
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767 " If the current line doesn't end in a backslash, but the previous one |
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768 " does, look for that line's msl |
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769 " |
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770 " Example: |
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771 " foo = "bar" \ |
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772 " "baz" |
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773 " |
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774 let msl = lnum |
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775 elseif s:Match(msl, s:leading_operator_regex) |
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776 " If the current line starts with a leading operator, keep its indent |
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777 " and keep looking for an MSL. |
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778 let msl = lnum |
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779 elseif s:Match(lnum, s:splat_regex) |
| 4869 | 780 " If the above line looks like the "*" of a splat, use the current one's |
| 781 " indentation. | |
| 782 " | |
| 783 " Example: | |
| 784 " Hash[* | |
| 785 " method_call do | |
| 786 " something | |
| 787 " | |
| 788 return msl | |
|
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789 elseif s:Match(lnum, s:non_bracket_continuation_regex) && |
| 4869 | 790 \ s:Match(msl, s:non_bracket_continuation_regex) |
| 791 " If the current line is a non-bracket continuation and so is the | |
| 792 " previous one, keep its indent and continue looking for an MSL. | |
| 793 " | |
| 794 " Example: | |
| 795 " method_call one, | |
| 796 " two, | |
| 797 " three | |
| 798 " | |
| 530 | 799 let msl = lnum |
|
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800 elseif s:Match(lnum, s:dot_continuation_regex) && |
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801 \ (s:Match(msl, s:bracket_continuation_regex) || s:Match(msl, s:block_continuation_regex)) |
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802 " If the current line is a bracket continuation or a block-starter, but |
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803 " the previous is a dot, keep going to see if the previous line is the |
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804 " start of another continuation. |
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805 " |
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806 " Example: |
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807 " parent. |
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808 " method_call { |
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809 " three |
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810 " |
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811 let msl = lnum |
| 4869 | 812 elseif s:Match(lnum, s:non_bracket_continuation_regex) && |
| 813 \ (s:Match(msl, s:bracket_continuation_regex) || s:Match(msl, s:block_continuation_regex)) | |
| 814 " If the current line is a bracket continuation or a block-starter, but | |
| 815 " the previous is a non-bracket one, respect the previous' indentation, | |
| 816 " and stop here. | |
| 817 " | |
| 818 " Example: | |
| 819 " method_call one, | |
| 820 " two { | |
| 821 " three | |
| 822 " | |
| 823 return lnum | |
| 824 elseif s:Match(lnum, s:bracket_continuation_regex) && | |
| 825 \ (s:Match(msl, s:bracket_continuation_regex) || s:Match(msl, s:block_continuation_regex)) | |
| 826 " If both lines are bracket continuations (the current may also be a | |
| 827 " block-starter), use the current one's and stop here | |
| 828 " | |
| 829 " Example: | |
| 830 " method_call( | |
| 831 " other_method_call( | |
| 832 " foo | |
| 833 return msl | |
| 834 elseif s:Match(lnum, s:block_regex) && | |
| 835 \ !s:Match(msl, s:continuation_regex) && | |
| 836 \ !s:Match(msl, s:block_continuation_regex) | |
| 837 " If the previous line is a block-starter and the current one is | |
| 838 " mostly ordinary, use the current one as the MSL. | |
| 839 " | |
| 840 " Example: | |
| 841 " method_call do | |
| 842 " something | |
| 843 " something_else | |
| 844 return msl | |
| 530 | 845 else |
| 4869 | 846 let col = match(line, s:continuation_regex) + 1 |
| 847 if (col > 0 && !s:IsInStringOrComment(lnum, col)) | |
| 848 \ || s:IsInString(lnum, strlen(line)) | |
| 849 let msl = lnum | |
| 850 else | |
| 851 break | |
| 852 endif | |
| 530 | 853 endif |
| 4869 | 854 |
| 530 | 855 let lnum = s:PrevNonBlankNonString(lnum - 1) |
| 856 endwhile | |
| 857 return msl | |
| 858 endfunction | |
| 859 | |
| 860 " Check if line 'lnum' has more opening brackets than closing ones. | |
| 15512 | 861 function! s:ExtraBrackets(lnum) abort |
| 4869 | 862 let opening = {'parentheses': [], 'braces': [], 'brackets': []} |
| 863 let closing = {'parentheses': [], 'braces': [], 'brackets': []} | |
| 864 | |
| 530 | 865 let line = getline(a:lnum) |
| 4869 | 866 let pos = match(line, '[][(){}]', 0) |
| 867 | |
| 868 " Save any encountered opening brackets, and remove them once a matching | |
| 869 " closing one has been found. If a closing bracket shows up that doesn't | |
| 870 " close anything, save it for later. | |
| 530 | 871 while pos != -1 |
| 872 if !s:IsInStringOrComment(a:lnum, pos + 1) | |
| 4869 | 873 if line[pos] == '(' |
| 874 call add(opening.parentheses, {'type': '(', 'pos': pos}) | |
| 875 elseif line[pos] == ')' | |
| 876 if empty(opening.parentheses) | |
| 877 call add(closing.parentheses, {'type': ')', 'pos': pos}) | |
| 878 else | |
| 879 let opening.parentheses = opening.parentheses[0:-2] | |
| 880 endif | |
| 881 elseif line[pos] == '{' | |
| 882 call add(opening.braces, {'type': '{', 'pos': pos}) | |
| 883 elseif line[pos] == '}' | |
| 884 if empty(opening.braces) | |
| 885 call add(closing.braces, {'type': '}', 'pos': pos}) | |
| 886 else | |
| 887 let opening.braces = opening.braces[0:-2] | |
| 888 endif | |
| 889 elseif line[pos] == '[' | |
| 890 call add(opening.brackets, {'type': '[', 'pos': pos}) | |
| 891 elseif line[pos] == ']' | |
| 892 if empty(opening.brackets) | |
| 893 call add(closing.brackets, {'type': ']', 'pos': pos}) | |
| 894 else | |
| 895 let opening.brackets = opening.brackets[0:-2] | |
| 896 endif | |
| 530 | 897 endif |
| 898 endif | |
| 4869 | 899 |
| 530 | 900 let pos = match(line, '[][(){}]', pos + 1) |
| 901 endwhile | |
| 4869 | 902 |
| 903 " Find the rightmost brackets, since they're the ones that are important in | |
| 904 " both opening and closing cases | |
| 905 let rightmost_opening = {'type': '(', 'pos': -1} | |
| 906 let rightmost_closing = {'type': ')', 'pos': -1} | |
| 907 | |
| 908 for opening in opening.parentheses + opening.braces + opening.brackets | |
| 909 if opening.pos > rightmost_opening.pos | |
| 910 let rightmost_opening = opening | |
| 911 endif | |
| 912 endfor | |
| 913 | |
| 914 for closing in closing.parentheses + closing.braces + closing.brackets | |
| 915 if closing.pos > rightmost_closing.pos | |
| 916 let rightmost_closing = closing | |
| 917 endif | |
| 918 endfor | |
| 919 | |
| 920 return [rightmost_opening, rightmost_closing] | |
| 530 | 921 endfunction |
| 922 | |
| 15512 | 923 function! s:Match(lnum, regex) abort |
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924 let line = getline(a:lnum) |
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925 let offset = match(line, '\C'.a:regex) |
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926 let col = offset + 1 |
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927 |
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928 while offset > -1 && s:IsInStringOrComment(a:lnum, col) |
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929 let offset = match(line, '\C'.a:regex, offset + 1) |
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930 let col = offset + 1 |
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931 endwhile |
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932 |
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933 if offset > -1 |
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934 return col |
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935 else |
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936 return 0 |
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937 endif |
| 530 | 938 endfunction |
| 939 | |
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940 " Locates the containing class/module's definition line, ignoring nested classes |
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941 " along the way. |
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942 " |
| 15512 | 943 function! s:FindContainingClass() abort |
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944 let saved_position = getpos('.') |
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945 |
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946 while searchpair(s:end_start_regex, s:end_middle_regex, s:end_end_regex, 'bW', |
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947 \ s:end_skip_expr) > 0 |
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948 if expand('<cword>') =~# '\<class\|module\>' |
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949 let found_lnum = line('.') |
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950 call setpos('.', saved_position) |
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951 return found_lnum |
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952 endif |
|
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953 endwhile |
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954 |
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955 call setpos('.', saved_position) |
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956 return 0 |
| 530 | 957 endfunction |
| 958 | |
| 959 " }}}1 | |
| 960 | |
| 961 let &cpo = s:cpo_save | |
| 962 unlet s:cpo_save | |
| 1121 | 963 |
| 4869 | 964 " vim:set sw=2 sts=2 ts=8 et: |