Mercurial > vim
annotate runtime/indent/ruby.vim @ 24679:80422f66978a v8.2.2878
patch 8.2.2878: Vim9: for loop list unpack only allows for one "_"
Commit: https://github.com/vim/vim/commit/b777da9be8eb421982e567702db3195475383dec
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat May 22 21:40:39 2021 +0200
patch 8.2.2878: Vim9: for loop list unpack only allows for one "_"
Problem: Vim9: for loop list unpack only allows for one "_".
Solution: Drop the value when the variable is "_". (closes https://github.com/vim/vim/issues/8232)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sat, 22 May 2021 21:45:02 +0200 |
| parents | 5b37a0bf7e3a |
| children | 43593a5d873f |
| 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> |
| 530 | 7 |
| 8 " 0. Initialization {{{1 | |
| 9 " ================= | |
| 7 | 10 |
| 11 " Only load this indent file when no other was loaded. | |
| 12 if exists("b:did_indent") | |
| 13 finish | |
| 14 endif | |
| 15 let b:did_indent = 1 | |
| 16 | |
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17 if !exists('g:ruby_indent_access_modifier_style') |
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18 " Possible values: "normal", "indent", "outdent" |
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19 let g:ruby_indent_access_modifier_style = 'normal' |
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20 endif |
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21 |
| 15512 | 22 if !exists('g:ruby_indent_assignment_style') |
| 23 " Possible values: "variable", "hanging" | |
| 24 let g:ruby_indent_assignment_style = 'hanging' | |
| 25 endif | |
| 26 | |
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27 if !exists('g:ruby_indent_block_style') |
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28 " Possible values: "expression", "do" |
| 23931 | 29 let g:ruby_indent_block_style = 'do' |
| 30 endif | |
| 31 | |
| 32 if !exists('g:ruby_indent_hanging_elements') | |
| 33 " Non-zero means hanging indents are enabled, zero means disabled | |
| 34 let g:ruby_indent_hanging_elements = 1 | |
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35 endif |
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36 |
| 843 | 37 setlocal nosmartindent |
| 38 | |
| 530 | 39 " Now, set up our indentation expression and keys that trigger it. |
| 4869 | 40 setlocal indentexpr=GetRubyIndent(v:lnum) |
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41 setlocal indentkeys=0{,0},0),0],!^F,o,O,e,:,. |
| 4869 | 42 setlocal indentkeys+==end,=else,=elsif,=when,=ensure,=rescue,==begin,==end |
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43 setlocal indentkeys+==private,=protected,=public |
| 7 | 44 |
| 45 " Only define the function once. | |
| 46 if exists("*GetRubyIndent") | |
| 47 finish | |
| 48 endif | |
| 49 | |
| 530 | 50 let s:cpo_save = &cpo |
| 51 set cpo&vim | |
| 52 | |
| 53 " 1. Variables {{{1 | |
| 54 " ============ | |
| 55 | |
| 15512 | 56 " Syntax group names that are strings. |
| 57 let s:syng_string = | |
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58 \ ['String', 'Interpolation', 'InterpolationDelimiter', 'StringEscape'] |
| 530 | 59 |
| 15512 | 60 " Syntax group names that are strings or documentation. |
| 61 let s:syng_stringdoc = s:syng_string + ['Documentation'] | |
| 530 | 62 |
| 15512 | 63 " Syntax group names that are or delimit strings/symbols/regexes or are comments. |
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64 let s:syng_strcom = s:syng_stringdoc + [ |
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65 \ 'Character', |
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66 \ 'Comment', |
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67 \ 'HeredocDelimiter', |
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68 \ 'PercentRegexpDelimiter', |
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69 \ 'PercentStringDelimiter', |
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70 \ 'PercentSymbolDelimiter', |
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71 \ 'Regexp', |
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72 \ 'RegexpCharClass', |
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73 \ 'RegexpDelimiter', |
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74 \ 'RegexpEscape', |
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75 \ 'StringDelimiter', |
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76 \ 'Symbol', |
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77 \ 'SymbolDelimiter', |
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78 \ ] |
| 530 | 79 |
| 80 " Expression used to check whether we should skip a match with searchpair(). | |
| 81 let s:skip_expr = | |
| 15512 | 82 \ 'index(map('.string(s:syng_strcom).',"hlID(''ruby''.v:val)"), synID(line("."),col("."),1)) >= 0' |
| 530 | 83 |
| 84 " Regex used for words that, at the start of a line, add a level of indent. | |
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85 let s:ruby_indent_keywords = |
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86 \ '^\s*\zs\<\%(module\|class\|if\|for' . |
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87 \ '\|while\|until\|else\|elsif\|case\|when\|unless\|begin\|ensure\|rescue' . |
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88 \ '\|\%(\K\k*[!?]\?\s\+\)\=def\):\@!\>' . |
| 4869 | 89 \ '\|\%([=,*/%+-]\|<<\|>>\|:\s\)\s*\zs' . |
| 90 \ '\<\%(if\|for\|while\|until\|case\|unless\|begin\):\@!\>' | |
| 530 | 91 |
| 92 " Regex used for words that, at the start of a line, remove a level of indent. | |
| 93 let s:ruby_deindent_keywords = | |
| 4869 | 94 \ '^\s*\zs\<\%(ensure\|else\|rescue\|elsif\|when\|end\):\@!\>' |
| 530 | 95 |
| 96 " Regex that defines the start-match for the 'end' keyword. | |
| 97 "let s:end_start_regex = '\%(^\|[^.]\)\<\%(module\|class\|def\|if\|for\|while\|until\|case\|unless\|begin\|do\)\>' | |
| 98 " TODO: the do here should be restricted somewhat (only at end of line)? | |
| 4869 | 99 let s:end_start_regex = |
| 100 \ '\C\%(^\s*\|[=,*/%+\-|;{]\|<<\|>>\|:\s\)\s*\zs' . | |
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101 \ '\<\%(module\|class\|if\|for\|while\|until\|case\|unless\|begin' . |
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102 \ '\|\%(\K\k*[!?]\?\s\+\)\=def\):\@!\>' . |
| 4869 | 103 \ '\|\%(^\|[^.:@$]\)\@<=\<do:\@!\>' |
| 530 | 104 |
| 105 " Regex that defines the middle-match for the 'end' keyword. | |
| 4869 | 106 let s:end_middle_regex = '\<\%(ensure\|else\|\%(\%(^\|;\)\s*\)\@<=\<rescue:\@!\>\|when\|elsif\):\@!\>' |
| 530 | 107 |
| 108 " Regex that defines the end-match for the 'end' keyword. | |
| 4869 | 109 let s:end_end_regex = '\%(^\|[^.:@$]\)\@<=\<end:\@!\>' |
| 530 | 110 |
| 111 " Expression used for searchpair() call for finding match for 'end' keyword. | |
| 112 let s:end_skip_expr = s:skip_expr . | |
| 113 \ ' || (expand("<cword>") == "do"' . | |
| 4869 | 114 \ ' && getline(".") =~ "^\\s*\\<\\(while\\|until\\|for\\):\\@!\\>")' |
| 530 | 115 |
| 116 " Regex that defines continuation lines, not including (, {, or [. | |
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117 let s:non_bracket_continuation_regex = |
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118 \ '\%([\\.,:*/%+]\|\<and\|\<or\|\%(<%\)\@<![=-]\|:\@<![^[:alnum:]:][|&?]\|||\|&&\)\s*\%(#.*\)\=$' |
| 530 | 119 |
| 120 " Regex that defines continuation lines. | |
| 4869 | 121 let s:continuation_regex = |
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122 \ '\%(%\@<![({[\\.,:*/%+]\|\<and\|\<or\|\%(<%\)\@<![=-]\|:\@<![^[:alnum:]:][|&?]\|||\|&&\)\s*\%(#.*\)\=$' |
| 4869 | 123 |
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124 " Regex that defines continuable keywords |
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125 let s:continuable_regex = |
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126 \ '\C\%(^\s*\|[=,*/%+\-|;{]\|<<\|>>\|:\s\)\s*\zs' . |
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127 \ '\<\%(if\|for\|while\|until\|unless\):\@!\>' |
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128 |
| 4869 | 129 " Regex that defines bracket continuations |
| 130 let s:bracket_continuation_regex = '%\@<!\%([({[]\)\s*\%(#.*\)\=$' | |
| 131 | |
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132 " Regex that defines dot continuations |
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133 let s:dot_continuation_regex = '%\@<!\.\s*\%(#.*\)\=$' |
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134 |
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135 " Regex that defines backslash continuations |
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136 let s:backslash_continuation_regex = '%\@<!\\\s*$' |
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137 |
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138 " Regex that defines end of bracket continuation followed by another continuation |
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139 let s:bracket_switch_continuation_regex = '^\([^(]\+\zs).\+\)\+'.s:continuation_regex |
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140 |
| 4869 | 141 " Regex that defines the first part of a splat pattern |
| 142 let s:splat_regex = '[[,(]\s*\*\s*\%(#.*\)\=$' | |
| 530 | 143 |
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144 " Regex that describes all indent access modifiers |
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145 let s:access_modifier_regex = '\C^\s*\%(public\|protected\|private\)\s*\%(#.*\)\=$' |
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146 |
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147 " Regex that describes the indent access modifiers (excludes public) |
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148 let s:indent_access_modifier_regex = '\C^\s*\%(protected\|private\)\s*\%(#.*\)\=$' |
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149 |
| 530 | 150 " Regex that defines blocks. |
| 4869 | 151 " |
| 152 " Note that there's a slight problem with this regex and s:continuation_regex. | |
| 153 " Code like this will be matched by both: | |
| 154 " | |
| 155 " method_call do |(a, b)| | |
| 156 " | |
| 157 " The reason is that the pipe matches a hanging "|" operator. | |
| 158 " | |
| 530 | 159 let s:block_regex = |
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160 \ '\%(\<do:\@!\>\|%\@<!{\)\s*\%(|[^|]*|\)\=\s*\%(#.*\)\=$' |
| 4869 | 161 |
| 162 let s:block_continuation_regex = '^\s*[^])}\t ].*'.s:block_regex | |
| 530 | 163 |
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164 " Regex that describes a leading operator (only a method call's dot for now) |
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165 let s:leading_operator_regex = '^\s*\%(&\=\.\)' |
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166 |
| 15512 | 167 " 2. GetRubyIndent Function {{{1 |
| 168 " ========================= | |
| 169 | |
| 170 function! GetRubyIndent(...) abort | |
| 171 " 2.1. Setup {{{2 | |
| 172 " ---------- | |
| 173 | |
| 174 let indent_info = {} | |
| 175 | |
| 176 " The value of a single shift-width | |
| 177 if exists('*shiftwidth') | |
| 178 let indent_info.sw = shiftwidth() | |
| 179 else | |
| 180 let indent_info.sw = &sw | |
| 181 endif | |
| 182 | |
| 183 " For the current line, use the first argument if given, else v:lnum | |
| 184 let indent_info.clnum = a:0 ? a:1 : v:lnum | |
| 185 let indent_info.cline = getline(indent_info.clnum) | |
| 186 | |
| 187 " Set up variables for restoring position in file. Could use clnum here. | |
| 188 let indent_info.col = col('.') | |
| 189 | |
| 190 " 2.2. Work on the current line {{{2 | |
| 191 " ----------------------------- | |
| 192 let indent_callback_names = [ | |
| 193 \ 's:AccessModifier', | |
| 194 \ 's:ClosingBracketOnEmptyLine', | |
| 195 \ 's:BlockComment', | |
| 196 \ 's:DeindentingKeyword', | |
| 197 \ 's:MultilineStringOrLineComment', | |
| 198 \ 's:ClosingHeredocDelimiter', | |
| 199 \ 's:LeadingOperator', | |
| 200 \ ] | |
| 201 | |
| 202 for callback_name in indent_callback_names | |
| 203 " Decho "Running: ".callback_name | |
| 204 let indent = call(function(callback_name), [indent_info]) | |
| 205 | |
| 206 if indent >= 0 | |
| 207 " Decho "Match: ".callback_name." indent=".indent." info=".string(indent_info) | |
| 208 return indent | |
| 209 endif | |
| 210 endfor | |
| 211 | |
| 212 " 2.3. Work on the previous line. {{{2 | |
| 213 " ------------------------------- | |
| 214 | |
| 215 " Special case: we don't need the real s:PrevNonBlankNonString for an empty | |
| 216 " line inside a string. And that call can be quite expensive in that | |
| 217 " particular situation. | |
| 218 let indent_callback_names = [ | |
| 219 \ 's:EmptyInsideString', | |
| 220 \ ] | |
| 221 | |
| 222 for callback_name in indent_callback_names | |
| 223 " Decho "Running: ".callback_name | |
| 224 let indent = call(function(callback_name), [indent_info]) | |
| 225 | |
| 226 if indent >= 0 | |
| 227 " Decho "Match: ".callback_name." indent=".indent." info=".string(indent_info) | |
| 228 return indent | |
| 229 endif | |
| 230 endfor | |
| 231 | |
| 232 " Previous line number | |
| 233 let indent_info.plnum = s:PrevNonBlankNonString(indent_info.clnum - 1) | |
| 234 let indent_info.pline = getline(indent_info.plnum) | |
| 235 | |
| 236 let indent_callback_names = [ | |
| 237 \ 's:StartOfFile', | |
| 238 \ 's:AfterAccessModifier', | |
| 239 \ 's:ContinuedLine', | |
| 240 \ 's:AfterBlockOpening', | |
| 241 \ 's:AfterHangingSplat', | |
| 242 \ 's:AfterUnbalancedBracket', | |
| 243 \ 's:AfterLeadingOperator', | |
| 244 \ 's:AfterEndKeyword', | |
| 245 \ 's:AfterIndentKeyword', | |
| 246 \ ] | |
| 247 | |
| 248 for callback_name in indent_callback_names | |
| 249 " Decho "Running: ".callback_name | |
| 250 let indent = call(function(callback_name), [indent_info]) | |
| 251 | |
| 252 if indent >= 0 | |
| 253 " Decho "Match: ".callback_name." indent=".indent." info=".string(indent_info) | |
| 254 return indent | |
| 255 endif | |
| 256 endfor | |
| 257 | |
| 258 " 2.4. Work on the MSL line. {{{2 | |
| 259 " -------------------------- | |
| 260 let indent_callback_names = [ | |
| 261 \ 's:PreviousNotMSL', | |
| 262 \ 's:IndentingKeywordInMSL', | |
| 263 \ 's:ContinuedHangingOperator', | |
| 264 \ ] | |
| 265 | |
| 266 " Most Significant line based on the previous one -- in case it's a | |
| 267 " contination of something above | |
| 268 let indent_info.plnum_msl = s:GetMSL(indent_info.plnum) | |
| 269 | |
| 270 for callback_name in indent_callback_names | |
| 271 " Decho "Running: ".callback_name | |
| 272 let indent = call(function(callback_name), [indent_info]) | |
| 273 | |
| 274 if indent >= 0 | |
| 275 " Decho "Match: ".callback_name." indent=".indent." info=".string(indent_info) | |
| 276 return indent | |
| 277 endif | |
| 278 endfor | |
| 279 | |
| 280 " }}}2 | |
| 281 | |
| 282 " By default, just return the previous line's indent | |
| 283 " Decho "Default case matched" | |
| 284 return indent(indent_info.plnum) | |
| 285 endfunction | |
| 286 | |
| 287 " 3. Indenting Logic Callbacks {{{1 | |
| 288 " ============================ | |
| 289 | |
| 290 function! s:AccessModifier(cline_info) abort | |
| 291 let info = a:cline_info | |
| 292 | |
| 293 " If this line is an access modifier keyword, align according to the closest | |
| 294 " class declaration. | |
| 295 if g:ruby_indent_access_modifier_style == 'indent' | |
| 296 if s:Match(info.clnum, s:access_modifier_regex) | |
| 297 let class_lnum = s:FindContainingClass() | |
| 298 if class_lnum > 0 | |
| 299 return indent(class_lnum) + info.sw | |
| 300 endif | |
| 301 endif | |
| 302 elseif g:ruby_indent_access_modifier_style == 'outdent' | |
| 303 if s:Match(info.clnum, s:access_modifier_regex) | |
| 304 let class_lnum = s:FindContainingClass() | |
| 305 if class_lnum > 0 | |
| 306 return indent(class_lnum) | |
| 307 endif | |
| 308 endif | |
| 309 endif | |
| 310 | |
| 311 return -1 | |
| 312 endfunction | |
| 313 | |
| 314 function! s:ClosingBracketOnEmptyLine(cline_info) abort | |
| 315 let info = a:cline_info | |
| 316 | |
| 317 " If we got a closing bracket on an empty line, find its match and indent | |
| 318 " according to it. For parentheses we indent to its column - 1, for the | |
| 319 " others we indent to the containing line's MSL's level. Return -1 if fail. | |
| 320 let col = matchend(info.cline, '^\s*[]})]') | |
| 321 | |
| 322 if col > 0 && !s:IsInStringOrComment(info.clnum, col) | |
| 323 call cursor(info.clnum, col) | |
| 324 let closing_bracket = info.cline[col - 1] | |
| 325 let bracket_pair = strpart('(){}[]', stridx(')}]', closing_bracket) * 2, 2) | |
| 326 | |
| 327 if searchpair(escape(bracket_pair[0], '\['), '', bracket_pair[1], 'bW', s:skip_expr) > 0 | |
| 328 if closing_bracket == ')' && col('.') != col('$') - 1 | |
| 23931 | 329 if g:ruby_indent_hanging_elements |
| 330 let ind = virtcol('.') - 1 | |
| 331 else | |
| 332 let ind = indent(line('.')) | |
| 333 end | |
| 15512 | 334 elseif g:ruby_indent_block_style == 'do' |
| 335 let ind = indent(line('.')) | |
| 336 else " g:ruby_indent_block_style == 'expression' | |
| 337 let ind = indent(s:GetMSL(line('.'))) | |
| 338 endif | |
| 339 endif | |
| 340 | |
| 341 return ind | |
| 342 endif | |
| 343 | |
| 344 return -1 | |
| 345 endfunction | |
| 346 | |
| 347 function! s:BlockComment(cline_info) abort | |
| 348 " If we have a =begin or =end set indent to first column. | |
| 349 if match(a:cline_info.cline, '^\s*\%(=begin\|=end\)$') != -1 | |
| 350 return 0 | |
| 351 endif | |
| 352 return -1 | |
| 353 endfunction | |
| 354 | |
| 355 function! s:DeindentingKeyword(cline_info) abort | |
| 356 let info = a:cline_info | |
| 357 | |
| 358 " If we have a deindenting keyword, find its match and indent to its level. | |
| 359 " TODO: this is messy | |
| 360 if s:Match(info.clnum, s:ruby_deindent_keywords) | |
| 361 call cursor(info.clnum, 1) | |
| 362 | |
| 363 if searchpair(s:end_start_regex, s:end_middle_regex, s:end_end_regex, 'bW', | |
| 364 \ s:end_skip_expr) > 0 | |
| 365 let msl = s:GetMSL(line('.')) | |
| 366 let line = getline(line('.')) | |
| 367 | |
| 368 if s:IsAssignment(line, col('.')) && | |
| 369 \ strpart(line, col('.') - 1, 2) !~ 'do' | |
| 370 " assignment to case/begin/etc, on the same line | |
| 371 if g:ruby_indent_assignment_style == 'hanging' | |
| 372 " hanging indent | |
| 373 let ind = virtcol('.') - 1 | |
| 374 else | |
| 375 " align with variable | |
| 376 let ind = indent(line('.')) | |
| 377 endif | |
| 378 elseif g:ruby_indent_block_style == 'do' | |
| 379 " align to line of the "do", not to the MSL | |
| 380 let ind = indent(line('.')) | |
| 381 elseif getline(msl) =~ '=\s*\(#.*\)\=$' | |
| 382 " in the case of assignment to the MSL, align to the starting line, | |
| 383 " not to the MSL | |
| 384 let ind = indent(line('.')) | |
| 385 else | |
| 386 " align to the MSL | |
| 387 let ind = indent(msl) | |
| 388 endif | |
| 389 endif | |
| 390 return ind | |
| 391 endif | |
| 392 | |
| 393 return -1 | |
| 394 endfunction | |
| 395 | |
| 396 function! s:MultilineStringOrLineComment(cline_info) abort | |
| 397 let info = a:cline_info | |
| 398 | |
| 399 " If we are in a multi-line string or line-comment, don't do anything to it. | |
| 400 if s:IsInStringOrDocumentation(info.clnum, matchend(info.cline, '^\s*') + 1) | |
| 401 return indent(info.clnum) | |
| 402 endif | |
| 403 return -1 | |
| 404 endfunction | |
| 405 | |
| 406 function! s:ClosingHeredocDelimiter(cline_info) abort | |
| 407 let info = a:cline_info | |
| 408 | |
| 409 " If we are at the closing delimiter of a "<<" heredoc-style string, set the | |
| 410 " indent to 0. | |
| 411 if info.cline =~ '^\k\+\s*$' | |
| 412 \ && s:IsInStringDelimiter(info.clnum, 1) | |
| 413 \ && search('\V<<'.info.cline, 'nbW') > 0 | |
| 414 return 0 | |
| 415 endif | |
| 416 | |
| 417 return -1 | |
| 418 endfunction | |
| 419 | |
| 420 function! s:LeadingOperator(cline_info) abort | |
| 421 " If the current line starts with a leading operator, add a level of indent. | |
| 422 if s:Match(a:cline_info.clnum, s:leading_operator_regex) | |
| 423 return indent(s:GetMSL(a:cline_info.clnum)) + a:cline_info.sw | |
| 424 endif | |
| 425 return -1 | |
| 426 endfunction | |
| 427 | |
| 428 function! s:EmptyInsideString(pline_info) abort | |
| 429 " If the line is empty and inside a string (the previous line is a string, | |
| 430 " too), use the previous line's indent | |
| 431 let info = a:pline_info | |
| 432 | |
| 433 let plnum = prevnonblank(info.clnum - 1) | |
| 434 let pline = getline(plnum) | |
| 435 | |
| 436 if info.cline =~ '^\s*$' | |
| 437 \ && s:IsInStringOrComment(plnum, 1) | |
| 438 \ && s:IsInStringOrComment(plnum, strlen(pline)) | |
| 439 return indent(plnum) | |
| 440 endif | |
| 441 return -1 | |
| 442 endfunction | |
| 443 | |
| 444 function! s:StartOfFile(pline_info) abort | |
| 445 " At the start of the file use zero indent. | |
| 446 if a:pline_info.plnum == 0 | |
| 447 return 0 | |
| 448 endif | |
| 449 return -1 | |
| 450 endfunction | |
| 451 | |
| 452 function! s:AfterAccessModifier(pline_info) abort | |
| 453 let info = a:pline_info | |
| 454 | |
| 455 if g:ruby_indent_access_modifier_style == 'indent' | |
| 456 " If the previous line was a private/protected keyword, add a | |
| 457 " level of indent. | |
| 458 if s:Match(info.plnum, s:indent_access_modifier_regex) | |
| 459 return indent(info.plnum) + info.sw | |
| 460 endif | |
| 461 elseif g:ruby_indent_access_modifier_style == 'outdent' | |
| 462 " If the previous line was a private/protected/public keyword, add | |
| 463 " a level of indent, since the keyword has been out-dented. | |
| 464 if s:Match(info.plnum, s:access_modifier_regex) | |
| 465 return indent(info.plnum) + info.sw | |
| 466 endif | |
| 467 endif | |
| 468 return -1 | |
| 469 endfunction | |
| 470 | |
| 471 " Example: | |
| 472 " | |
| 473 " if foo || bar || | |
| 474 " baz || bing | |
| 475 " puts "foo" | |
| 476 " end | |
| 477 " | |
| 478 function! s:ContinuedLine(pline_info) abort | |
| 479 let info = a:pline_info | |
| 480 | |
| 481 let col = s:Match(info.plnum, s:ruby_indent_keywords) | |
| 482 if s:Match(info.plnum, s:continuable_regex) && | |
| 483 \ s:Match(info.plnum, s:continuation_regex) | |
| 484 if col > 0 && s:IsAssignment(info.pline, col) | |
| 485 if g:ruby_indent_assignment_style == 'hanging' | |
| 486 " hanging indent | |
| 487 let ind = col - 1 | |
| 488 else | |
| 489 " align with variable | |
| 490 let ind = indent(info.plnum) | |
| 491 endif | |
| 492 else | |
| 493 let ind = indent(s:GetMSL(info.plnum)) | |
| 494 endif | |
| 495 return ind + info.sw + info.sw | |
| 496 endif | |
| 497 return -1 | |
| 498 endfunction | |
| 499 | |
| 500 function! s:AfterBlockOpening(pline_info) abort | |
| 501 let info = a:pline_info | |
| 502 | |
| 503 " If the previous line ended with a block opening, add a level of indent. | |
| 504 if s:Match(info.plnum, s:block_regex) | |
| 505 if g:ruby_indent_block_style == 'do' | |
| 506 " don't align to the msl, align to the "do" | |
| 507 let ind = indent(info.plnum) + info.sw | |
| 508 else | |
| 509 let plnum_msl = s:GetMSL(info.plnum) | |
| 510 | |
| 511 if getline(plnum_msl) =~ '=\s*\(#.*\)\=$' | |
| 512 " in the case of assignment to the msl, align to the starting line, | |
| 513 " not to the msl | |
| 514 let ind = indent(info.plnum) + info.sw | |
| 515 else | |
| 516 let ind = indent(plnum_msl) + info.sw | |
| 517 endif | |
| 518 endif | |
| 519 | |
| 520 return ind | |
| 521 endif | |
| 522 | |
| 523 return -1 | |
| 524 endfunction | |
| 525 | |
| 526 function! s:AfterLeadingOperator(pline_info) abort | |
| 527 " If the previous line started with a leading operator, use its MSL's level | |
| 528 " of indent | |
| 529 if s:Match(a:pline_info.plnum, s:leading_operator_regex) | |
| 530 return indent(s:GetMSL(a:pline_info.plnum)) | |
| 531 endif | |
| 532 return -1 | |
| 533 endfunction | |
| 534 | |
| 535 function! s:AfterHangingSplat(pline_info) abort | |
| 536 let info = a:pline_info | |
| 537 | |
| 538 " If the previous line ended with the "*" of a splat, add a level of indent | |
| 539 if info.pline =~ s:splat_regex | |
| 540 return indent(info.plnum) + info.sw | |
| 541 endif | |
| 542 return -1 | |
| 543 endfunction | |
| 544 | |
| 545 function! s:AfterUnbalancedBracket(pline_info) abort | |
| 546 let info = a:pline_info | |
| 547 | |
| 548 " If the previous line contained unclosed opening brackets and we are still | |
| 549 " in them, find the rightmost one and add indent depending on the bracket | |
| 550 " type. | |
| 551 " | |
| 552 " If it contained hanging closing brackets, find the rightmost one, find its | |
| 553 " match and indent according to that. | |
| 554 if info.pline =~ '[[({]' || info.pline =~ '[])}]\s*\%(#.*\)\=$' | |
| 555 let [opening, closing] = s:ExtraBrackets(info.plnum) | |
| 556 | |
| 557 if opening.pos != -1 | |
| 23931 | 558 if !g:ruby_indent_hanging_elements |
| 559 return indent(info.plnum) + info.sw | |
| 560 elseif opening.type == '(' && searchpair('(', '', ')', 'bW', s:skip_expr) > 0 | |
| 15512 | 561 if col('.') + 1 == col('$') |
| 562 return indent(info.plnum) + info.sw | |
| 563 else | |
| 564 return virtcol('.') | |
| 565 endif | |
| 566 else | |
| 567 let nonspace = matchend(info.pline, '\S', opening.pos + 1) - 1 | |
| 568 return nonspace > 0 ? nonspace : indent(info.plnum) + info.sw | |
| 569 endif | |
| 570 elseif closing.pos != -1 | |
| 571 call cursor(info.plnum, closing.pos + 1) | |
| 572 normal! % | |
| 573 | |
| 574 if s:Match(line('.'), s:ruby_indent_keywords) | |
| 575 return indent('.') + info.sw | |
| 576 else | |
| 577 return indent(s:GetMSL(line('.'))) | |
| 578 endif | |
| 579 else | |
| 580 call cursor(info.clnum, info.col) | |
| 581 end | |
| 582 endif | |
| 583 | |
| 584 return -1 | |
| 585 endfunction | |
| 586 | |
| 587 function! s:AfterEndKeyword(pline_info) abort | |
| 588 let info = a:pline_info | |
| 589 " If the previous line ended with an "end", match that "end"s beginning's | |
| 590 " indent. | |
| 591 let col = s:Match(info.plnum, '\%(^\|[^.:@$]\)\<end\>\s*\%(#.*\)\=$') | |
| 592 if col > 0 | |
| 593 call cursor(info.plnum, col) | |
| 594 if searchpair(s:end_start_regex, '', s:end_end_regex, 'bW', | |
| 595 \ s:end_skip_expr) > 0 | |
| 596 let n = line('.') | |
| 597 let ind = indent('.') | |
| 598 let msl = s:GetMSL(n) | |
| 599 if msl != n | |
| 600 let ind = indent(msl) | |
| 601 end | |
| 602 return ind | |
| 603 endif | |
| 604 end | |
| 605 return -1 | |
| 606 endfunction | |
| 607 | |
| 608 function! s:AfterIndentKeyword(pline_info) abort | |
| 609 let info = a:pline_info | |
| 610 let col = s:Match(info.plnum, s:ruby_indent_keywords) | |
| 611 | |
| 612 if col > 0 | |
| 613 call cursor(info.plnum, col) | |
| 614 let ind = virtcol('.') - 1 + info.sw | |
| 615 " TODO: make this better (we need to count them) (or, if a searchpair | |
| 616 " fails, we know that something is lacking an end and thus we indent a | |
| 617 " level | |
| 618 if s:Match(info.plnum, s:end_end_regex) | |
| 619 let ind = indent('.') | |
| 620 elseif s:IsAssignment(info.pline, col) | |
| 621 if g:ruby_indent_assignment_style == 'hanging' | |
| 622 " hanging indent | |
| 623 let ind = col + info.sw - 1 | |
| 624 else | |
| 625 " align with variable | |
| 626 let ind = indent(info.plnum) + info.sw | |
| 627 endif | |
| 628 endif | |
| 629 return ind | |
| 630 endif | |
| 631 | |
| 632 return -1 | |
| 633 endfunction | |
| 634 | |
| 635 function! s:PreviousNotMSL(msl_info) abort | |
| 636 let info = a:msl_info | |
| 637 | |
| 638 " If the previous line wasn't a MSL | |
| 639 if info.plnum != info.plnum_msl | |
| 640 " If previous line ends bracket and begins non-bracket continuation decrease indent by 1. | |
| 641 if s:Match(info.plnum, s:bracket_switch_continuation_regex) | |
| 642 " TODO (2016-10-07) Wrong/unused? How could it be "1"? | |
| 643 return indent(info.plnum) - 1 | |
| 644 " If previous line is a continuation return its indent. | |
| 23931 | 645 elseif s:Match(info.plnum, s:non_bracket_continuation_regex) |
| 15512 | 646 return indent(info.plnum) |
| 647 endif | |
| 648 endif | |
| 649 | |
| 650 return -1 | |
| 651 endfunction | |
| 652 | |
| 653 function! s:IndentingKeywordInMSL(msl_info) abort | |
| 654 let info = a:msl_info | |
| 655 " If the MSL line had an indenting keyword in it, add a level of indent. | |
| 656 " TODO: this does not take into account contrived things such as | |
| 657 " module Foo; class Bar; end | |
| 658 let col = s:Match(info.plnum_msl, s:ruby_indent_keywords) | |
| 659 if col > 0 | |
| 660 let ind = indent(info.plnum_msl) + info.sw | |
| 661 if s:Match(info.plnum_msl, s:end_end_regex) | |
| 662 let ind = ind - info.sw | |
| 663 elseif s:IsAssignment(getline(info.plnum_msl), col) | |
| 664 if g:ruby_indent_assignment_style == 'hanging' | |
| 665 " hanging indent | |
| 666 let ind = col + info.sw - 1 | |
| 667 else | |
| 668 " align with variable | |
| 669 let ind = indent(info.plnum_msl) + info.sw | |
| 670 endif | |
| 671 endif | |
| 672 return ind | |
| 673 endif | |
| 674 return -1 | |
| 675 endfunction | |
| 676 | |
| 677 function! s:ContinuedHangingOperator(msl_info) abort | |
| 678 let info = a:msl_info | |
| 679 | |
| 680 " If the previous line ended with [*+/.,-=], but wasn't a block ending or a | |
| 681 " closing bracket, indent one extra level. | |
| 682 if s:Match(info.plnum_msl, s:non_bracket_continuation_regex) && !s:Match(info.plnum_msl, '^\s*\([\])}]\|end\)') | |
| 683 if info.plnum_msl == info.plnum | |
| 684 let ind = indent(info.plnum_msl) + info.sw | |
| 685 else | |
| 686 let ind = indent(info.plnum_msl) | |
| 687 endif | |
| 688 return ind | |
| 689 endif | |
| 690 | |
| 691 return -1 | |
| 692 endfunction | |
| 693 | |
| 694 " 4. Auxiliary Functions {{{1 | |
| 530 | 695 " ====================== |
| 696 | |
| 15512 | 697 function! s:IsInRubyGroup(groups, lnum, col) abort |
| 698 let ids = map(copy(a:groups), 'hlID("ruby".v:val)') | |
| 699 return index(ids, synID(a:lnum, a:col, 1)) >= 0 | |
| 700 endfunction | |
| 701 | |
| 530 | 702 " Check if the character at lnum:col is inside a string, comment, or is ascii. |
| 15512 | 703 function! s:IsInStringOrComment(lnum, col) abort |
| 704 return s:IsInRubyGroup(s:syng_strcom, a:lnum, a:col) | |
| 530 | 705 endfunction |
| 706 | |
| 707 " Check if the character at lnum:col is inside a string. | |
| 15512 | 708 function! s:IsInString(lnum, col) abort |
| 709 return s:IsInRubyGroup(s:syng_string, a:lnum, a:col) | |
| 530 | 710 endfunction |
| 711 | |
| 712 " Check if the character at lnum:col is inside a string or documentation. | |
| 15512 | 713 function! s:IsInStringOrDocumentation(lnum, col) abort |
| 714 return s:IsInRubyGroup(s:syng_stringdoc, a:lnum, a:col) | |
| 530 | 715 endfunction |
| 716 | |
| 4869 | 717 " Check if the character at lnum:col is inside a string delimiter |
| 15512 | 718 function! s:IsInStringDelimiter(lnum, col) abort |
|
18857
70ce979e76bc
Update a few runtime files.
Bram Moolenaar <Bram@vim.org>
parents:
15512
diff
changeset
|
719 return s:IsInRubyGroup( |
|
70ce979e76bc
Update a few runtime files.
Bram Moolenaar <Bram@vim.org>
parents:
15512
diff
changeset
|
720 \ ['HeredocDelimiter', 'PercentStringDelimiter', 'StringDelimiter'], |
|
70ce979e76bc
Update a few runtime files.
Bram Moolenaar <Bram@vim.org>
parents:
15512
diff
changeset
|
721 \ a:lnum, a:col |
|
70ce979e76bc
Update a few runtime files.
Bram Moolenaar <Bram@vim.org>
parents:
15512
diff
changeset
|
722 \ ) |
| 15512 | 723 endfunction |
| 724 | |
| 725 function! s:IsAssignment(str, pos) abort | |
| 726 return strpart(a:str, 0, a:pos - 1) =~ '=\s*$' | |
| 4869 | 727 endfunction |
| 728 | |
| 530 | 729 " Find line above 'lnum' that isn't empty, in a comment, or in a string. |
| 15512 | 730 function! s:PrevNonBlankNonString(lnum) abort |
| 530 | 731 let in_block = 0 |
| 732 let lnum = prevnonblank(a:lnum) | |
| 733 while lnum > 0 | |
| 734 " Go in and out of blocks comments as necessary. | |
| 735 " If the line isn't empty (with opt. comment) or in a string, end search. | |
| 736 let line = getline(lnum) | |
| 4869 | 737 if line =~ '^=begin' |
| 530 | 738 if in_block |
| 4869 | 739 let in_block = 0 |
| 530 | 740 else |
| 4869 | 741 break |
| 530 | 742 endif |
| 4869 | 743 elseif !in_block && line =~ '^=end' |
| 530 | 744 let in_block = 1 |
| 745 elseif !in_block && line !~ '^\s*#.*$' && !(s:IsInStringOrComment(lnum, 1) | |
| 4869 | 746 \ && s:IsInStringOrComment(lnum, strlen(line))) |
| 530 | 747 break |
| 748 endif | |
| 749 let lnum = prevnonblank(lnum - 1) | |
| 750 endwhile | |
| 751 return lnum | |
| 752 endfunction | |
| 753 | |
| 754 " Find line above 'lnum' that started the continuation 'lnum' may be part of. | |
| 15512 | 755 function! s:GetMSL(lnum) abort |
| 530 | 756 " Start on the line we're at and use its indent. |
| 757 let msl = a:lnum | |
| 758 let lnum = s:PrevNonBlankNonString(a:lnum - 1) | |
| 759 while lnum > 0 | |
| 760 " If we have a continuation line, or we're in a string, use line as MSL. | |
| 761 " Otherwise, terminate search as we have found our MSL already. | |
| 762 let line = getline(lnum) | |
| 4869 | 763 |
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764 if !s:Match(msl, s:backslash_continuation_regex) && |
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765 \ s:Match(lnum, s:backslash_continuation_regex) |
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766 " If the current line doesn't end in a backslash, but the previous one |
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767 " does, look for that line's msl |
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768 " |
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769 " Example: |
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770 " foo = "bar" \ |
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771 " "baz" |
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772 " |
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773 let msl = lnum |
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774 elseif s:Match(msl, s:leading_operator_regex) |
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775 " If the current line starts with a leading operator, keep its indent |
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776 " and keep looking for an MSL. |
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777 let msl = lnum |
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778 elseif s:Match(lnum, s:splat_regex) |
| 4869 | 779 " If the above line looks like the "*" of a splat, use the current one's |
| 780 " indentation. | |
| 781 " | |
| 782 " Example: | |
| 783 " Hash[* | |
| 784 " method_call do | |
| 785 " something | |
| 786 " | |
| 787 return msl | |
|
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788 elseif s:Match(lnum, s:non_bracket_continuation_regex) && |
| 4869 | 789 \ s:Match(msl, s:non_bracket_continuation_regex) |
| 790 " If the current line is a non-bracket continuation and so is the | |
| 791 " previous one, keep its indent and continue looking for an MSL. | |
| 792 " | |
| 793 " Example: | |
| 794 " method_call one, | |
| 795 " two, | |
| 796 " three | |
| 797 " | |
| 530 | 798 let msl = lnum |
|
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799 elseif s:Match(lnum, s:dot_continuation_regex) && |
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800 \ (s:Match(msl, s:bracket_continuation_regex) || s:Match(msl, s:block_continuation_regex)) |
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801 " If the current line is a bracket continuation or a block-starter, but |
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802 " the previous is a dot, keep going to see if the previous line is the |
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803 " start of another continuation. |
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804 " |
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805 " Example: |
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806 " parent. |
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807 " method_call { |
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808 " three |
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809 " |
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810 let msl = lnum |
| 4869 | 811 elseif s:Match(lnum, s:non_bracket_continuation_regex) && |
| 812 \ (s:Match(msl, s:bracket_continuation_regex) || s:Match(msl, s:block_continuation_regex)) | |
| 813 " If the current line is a bracket continuation or a block-starter, but | |
| 814 " the previous is a non-bracket one, respect the previous' indentation, | |
| 815 " and stop here. | |
| 816 " | |
| 817 " Example: | |
| 818 " method_call one, | |
| 819 " two { | |
| 820 " three | |
| 821 " | |
| 822 return lnum | |
| 823 elseif s:Match(lnum, s:bracket_continuation_regex) && | |
| 824 \ (s:Match(msl, s:bracket_continuation_regex) || s:Match(msl, s:block_continuation_regex)) | |
| 825 " If both lines are bracket continuations (the current may also be a | |
| 826 " block-starter), use the current one's and stop here | |
| 827 " | |
| 828 " Example: | |
| 829 " method_call( | |
| 830 " other_method_call( | |
| 831 " foo | |
| 832 return msl | |
| 833 elseif s:Match(lnum, s:block_regex) && | |
| 834 \ !s:Match(msl, s:continuation_regex) && | |
| 835 \ !s:Match(msl, s:block_continuation_regex) | |
| 836 " If the previous line is a block-starter and the current one is | |
| 837 " mostly ordinary, use the current one as the MSL. | |
| 838 " | |
| 839 " Example: | |
| 840 " method_call do | |
| 841 " something | |
| 842 " something_else | |
| 843 return msl | |
| 530 | 844 else |
| 4869 | 845 let col = match(line, s:continuation_regex) + 1 |
| 846 if (col > 0 && !s:IsInStringOrComment(lnum, col)) | |
| 847 \ || s:IsInString(lnum, strlen(line)) | |
| 848 let msl = lnum | |
| 849 else | |
| 850 break | |
| 851 endif | |
| 530 | 852 endif |
| 4869 | 853 |
| 530 | 854 let lnum = s:PrevNonBlankNonString(lnum - 1) |
| 855 endwhile | |
| 856 return msl | |
| 857 endfunction | |
| 858 | |
| 859 " Check if line 'lnum' has more opening brackets than closing ones. | |
| 15512 | 860 function! s:ExtraBrackets(lnum) abort |
| 4869 | 861 let opening = {'parentheses': [], 'braces': [], 'brackets': []} |
| 862 let closing = {'parentheses': [], 'braces': [], 'brackets': []} | |
| 863 | |
| 530 | 864 let line = getline(a:lnum) |
| 4869 | 865 let pos = match(line, '[][(){}]', 0) |
| 866 | |
| 867 " Save any encountered opening brackets, and remove them once a matching | |
| 868 " closing one has been found. If a closing bracket shows up that doesn't | |
| 869 " close anything, save it for later. | |
| 530 | 870 while pos != -1 |
| 871 if !s:IsInStringOrComment(a:lnum, pos + 1) | |
| 4869 | 872 if line[pos] == '(' |
| 873 call add(opening.parentheses, {'type': '(', 'pos': pos}) | |
| 874 elseif line[pos] == ')' | |
| 875 if empty(opening.parentheses) | |
| 876 call add(closing.parentheses, {'type': ')', 'pos': pos}) | |
| 877 else | |
| 878 let opening.parentheses = opening.parentheses[0:-2] | |
| 879 endif | |
| 880 elseif line[pos] == '{' | |
| 881 call add(opening.braces, {'type': '{', 'pos': pos}) | |
| 882 elseif line[pos] == '}' | |
| 883 if empty(opening.braces) | |
| 884 call add(closing.braces, {'type': '}', 'pos': pos}) | |
| 885 else | |
| 886 let opening.braces = opening.braces[0:-2] | |
| 887 endif | |
| 888 elseif line[pos] == '[' | |
| 889 call add(opening.brackets, {'type': '[', 'pos': pos}) | |
| 890 elseif line[pos] == ']' | |
| 891 if empty(opening.brackets) | |
| 892 call add(closing.brackets, {'type': ']', 'pos': pos}) | |
| 893 else | |
| 894 let opening.brackets = opening.brackets[0:-2] | |
| 895 endif | |
| 530 | 896 endif |
| 897 endif | |
| 4869 | 898 |
| 530 | 899 let pos = match(line, '[][(){}]', pos + 1) |
| 900 endwhile | |
| 4869 | 901 |
| 902 " Find the rightmost brackets, since they're the ones that are important in | |
| 903 " both opening and closing cases | |
| 904 let rightmost_opening = {'type': '(', 'pos': -1} | |
| 905 let rightmost_closing = {'type': ')', 'pos': -1} | |
| 906 | |
| 907 for opening in opening.parentheses + opening.braces + opening.brackets | |
| 908 if opening.pos > rightmost_opening.pos | |
| 909 let rightmost_opening = opening | |
| 910 endif | |
| 911 endfor | |
| 912 | |
| 913 for closing in closing.parentheses + closing.braces + closing.brackets | |
| 914 if closing.pos > rightmost_closing.pos | |
| 915 let rightmost_closing = closing | |
| 916 endif | |
| 917 endfor | |
| 918 | |
| 919 return [rightmost_opening, rightmost_closing] | |
| 530 | 920 endfunction |
| 921 | |
| 15512 | 922 function! s:Match(lnum, regex) abort |
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923 let line = getline(a:lnum) |
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924 let offset = match(line, '\C'.a:regex) |
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925 let col = offset + 1 |
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926 |
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927 while offset > -1 && s:IsInStringOrComment(a:lnum, col) |
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928 let offset = match(line, '\C'.a:regex, offset + 1) |
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929 let col = offset + 1 |
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930 endwhile |
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931 |
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932 if offset > -1 |
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933 return col |
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934 else |
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935 return 0 |
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936 endif |
| 530 | 937 endfunction |
| 938 | |
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939 " Locates the containing class/module's definition line, ignoring nested classes |
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940 " along the way. |
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941 " |
| 15512 | 942 function! s:FindContainingClass() abort |
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943 let saved_position = getpos('.') |
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944 |
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945 while searchpair(s:end_start_regex, s:end_middle_regex, s:end_end_regex, 'bW', |
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946 \ s:end_skip_expr) > 0 |
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947 if expand('<cword>') =~# '\<class\|module\>' |
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948 let found_lnum = line('.') |
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949 call setpos('.', saved_position) |
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950 return found_lnum |
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951 endif |
|
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952 endwhile |
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953 |
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954 call setpos('.', saved_position) |
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43efa4f5a8ea
commit https://github.com/vim/vim/commit/89bcfda6834aba724d12554a34b9ed49f5789fd5
Christian Brabandt <cb@256bit.org>
parents:
4869
diff
changeset
|
955 return 0 |
| 530 | 956 endfunction |
| 957 | |
| 958 " }}}1 | |
| 959 | |
| 960 let &cpo = s:cpo_save | |
| 961 unlet s:cpo_save | |
| 1121 | 962 |
| 4869 | 963 " vim:set sw=2 sts=2 ts=8 et: |