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annotate runtime/indent/javascript.vim @ 10064:793471c09a4b v7.4.2303

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commit https://github.com/vim/vim/commit/779f2fc3a7468e273897d2fd0672315812a2e3da Author: Bram Moolenaar <Bram@vim.org> Date: Thu Sep 1 20:58:24 2016 +0200 patch 7.4.2303 Problem: When using "is" the mode isn't always updated. Solution: Redraw the command line. (Christian Brabandt)
author Christian Brabandt <cb@256bit.org>
date Thu, 01 Sep 2016 21:00:09 +0200
parents 03fa8a51e9dc
children 74effdaa369e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 " Vim indent file
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2 " Language: Javascript
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3 " Maintainer: Chris Paul ( https://github.com/bounceme )
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4 " URL: https://github.com/pangloss/vim-javascript
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5 " Last Change: August 25, 2016
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7 " Only load this indent file when no other was loaded.
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8 if exists('b:did_indent')
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9 finish
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10 endif
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11 let b:did_indent = 1
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12
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13 " Now, set up our indentation expression and keys that trigger it.
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14 setlocal indentexpr=GetJavascriptIndent()
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15 setlocal nolisp noautoindent nosmartindent
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16 setlocal indentkeys=0{,0},0),0],:,!^F,o,O,e
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5ffe000a9ecf Improve Javascript indenting. Add "J" flag to 'cino'. (Hari Kumar G)
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17 setlocal cinoptions+=j1,J1
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19 let b:undo_indent = 'setlocal indentexpr< smartindent< autoindent< indentkeys< cinoptions<'
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21 " Only define the function once.
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22 if exists('*GetJavascriptIndent')
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23 finish
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24 endif
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26 let s:cpo_save = &cpo
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27 set cpo&vim
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29 " Get shiftwidth value
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30 if exists('*shiftwidth')
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31 function s:sw()
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32 return shiftwidth()
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33 endfunction
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34 else
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35 function s:sw()
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36 return &sw
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37 endfunction
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38 endif
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39
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40 let s:line_pre = '^\s*\%(\%(\%(\/\*.\{-}\)\=\*\+\/\s*\)\=\)\@>'
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41 let s:expr_case = s:line_pre . '\%(\%(case\>.\+\)\|default\)\s*:'
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42 " Regex of syntax group names that are or delimit string or are comments.
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43 let s:syng_strcom = '\%(s\%(tring\|pecial\)\|comment\|regex\|doc\|template\)'
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44
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45 " Regex of syntax group names that are strings or documentation.
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46 let s:syng_comment = '\%(comment\|doc\)'
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48 " Expression used to check whether we should skip a match with searchpair().
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49 let s:skip_expr = "synIDattr(synID(line('.'),col('.'),0),'name') =~? '".s:syng_strcom."'"
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50
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51 if has('reltime')
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52 function s:GetPair(start,end,flags,time)
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53 return searchpair(a:start,'',a:end,a:flags,s:skip_expr,max([prevnonblank(v:lnum) - 2000,0]),a:time)
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54 endfunction
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55 else
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56 function s:GetPair(start,end,flags,n)
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57 return searchpair(a:start,'',a:end,a:flags,0,max([prevnonblank(v:lnum) - 2000,0]))
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58 endfunction
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59 endif
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60
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61 let s:line_term = '\s*\%(\%(\/\%(\%(\*.\{-}\*\/\)\|\%(\*\+\)\)\)\s*\)\=$'
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62
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63 " configurable regexes that define continuation lines, not including (, {, or [.
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64 if !exists('g:javascript_opfirst')
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65 let g:javascript_opfirst = '\%([<>,:?^%|*&]\|\/[^/*]\|\([-.+]\)\1\@!\|=>\@!\|in\%(stanceof\)\=\>\)'
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66 endif
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67 if !exists('g:javascript_continuation')
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68 let g:javascript_continuation = '\%([<=,.?/*:^%|&]\|+\@<!+\|-\@<!-\|=\@<!>\|\<in\%(stanceof\)\=\)'
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69 endif
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70
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71 let g:javascript_opfirst = s:line_pre . g:javascript_opfirst
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72 let g:javascript_continuation .= s:line_term
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73
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74 function s:OneScope(lnum,text,add)
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75 return a:text =~# '\%(\<else\|\<do\|=>\)' . s:line_term ? 'no b' :
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76 \ ((a:add && a:text =~ s:line_pre . '$' && search('\%' . s:PrevCodeLine(a:lnum - 1) . 'l.)' . s:line_term)) ||
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77 \ cursor(a:lnum, match(a:text, ')' . s:line_term)) > -1) &&
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78 \ s:GetPair('(', ')', 'cbW', 100) > 0 && search('\C\l\+\_s*\%#','bW') &&
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79 \ (a:add || ((expand('<cword>') !=# 'while' || !s:GetPair('\C\<do\>', '\C\<while\>','nbW',100)) &&
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80 \ (expand('<cword>') !=# 'each' || search('\C\<for\_s\+\%#','nbW')))) ? expand('<cword>') : ''
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81 endfunction
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82
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83 " https://github.com/sweet-js/sweet.js/wiki/design#give-lookbehind-to-the-reader
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84 function s:IsBlock()
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85 return getline(line('.'))[col('.')-1] == '{' && !search(
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86 \ '\C\%(\<return\s*\|\%([-=~!<*+,.?^%|&\[(]\|=\@<!>\|\*\@<!\/\|\<\%(var\|const\|let\|import\|export\%(\_s\+default\)\=\|yield\|delete\|void\|t\%(ypeof\|hrow\)\|new\|in\%(stanceof\)\=\)\)\_s*\)\%#','bnW') &&
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87 \ (!search(':\_s*\%#','bW') || (!s:GetPair('[({[]','[])}]','bW',200) || s:IsBlock()))
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88 endfunction
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89
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90 " Auxiliary Functions {{{2
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91
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92 " Find line above 'lnum' that isn't empty, in a comment, or in a string.
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93 function s:PrevCodeLine(lnum)
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94 let l:lnum = prevnonblank(a:lnum)
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95 while l:lnum
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96 if synIDattr(synID(l:lnum,matchend(getline(l:lnum), '^\s*[^''"]'),0),'name') !~? s:syng_strcom
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97 return l:lnum
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98 endif
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99 let l:lnum = prevnonblank(l:lnum - 1)
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100 endwhile
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101 endfunction
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102
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103 " Check if line 'lnum' has a balanced amount of parentheses.
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104 function s:Balanced(lnum)
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105 let [open_0,open_2,open_4] = [0,0,0]
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106 let l:line = getline(a:lnum)
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107 let pos = match(l:line, '[][(){}]', 0)
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108 while pos != -1
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109 if synIDattr(synID(a:lnum,pos + 1,0),'name') !~? s:syng_strcom
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110 let idx = stridx('(){}[]', l:line[pos])
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111 if idx % 2 == 0
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112 let open_{idx} = open_{idx} + 1
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113 else
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114 let open_{idx - 1} = open_{idx - 1} - 1
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115 endif
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116 endif
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117 let pos = match(l:line, '[][(){}]', pos + 1)
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118 endwhile
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119 return (!open_4 + !open_2 + !open_0) - 2
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120 endfunction
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121 " }}}
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122
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123 function GetJavascriptIndent()
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124 if !exists('b:js_cache')
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125 let b:js_cache = [0,0,0]
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126 endif
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127 " Get the current line.
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128 let l:line = getline(v:lnum)
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129 let syns = synIDattr(synID(v:lnum, 1, 0), 'name')
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130
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131 " start with strings,comments,etc.{{{2
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132 if (l:line !~ '^[''"`]' && syns =~? '\%(string\|template\)') ||
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133 \ (l:line !~ '^\s*[/*]' && syns =~? s:syng_comment)
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134 return -1
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135 endif
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136 if l:line !~ '^\%(\/\*\|\s*\/\/\)' && syns =~? s:syng_comment
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137 return cindent(v:lnum)
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138 endif
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139 let l:lnum = s:PrevCodeLine(v:lnum - 1)
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140 if l:lnum == 0
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141 return 0
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142 endif
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143
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144 if (l:line =~# s:expr_case)
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145 let cpo_switch = &cpo
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146 set cpo+=%
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147 let ind = cindent(v:lnum)
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148 let &cpo = cpo_switch
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149 return ind
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150 endif
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151 "}}}
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152
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153 " the containing paren, bracket, curly. Memoize, last lineNr either has the
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154 " same scope or starts a new one, unless if it closed a scope.
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155 call cursor(v:lnum,1)
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156 if b:js_cache[0] >= l:lnum && b:js_cache[0] < v:lnum && b:js_cache[0] &&
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157 \ (b:js_cache[0] > l:lnum || s:Balanced(l:lnum) > 0)
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158 let num = b:js_cache[1]
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159 elseif syns != '' && l:line[0] =~ '\s'
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160 let pattern = syns =~? 'block' ? ['{','}'] : syns =~? 'jsparen' ? ['(',')'] :
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161 \ syns =~? 'jsbracket'? ['\[','\]'] : ['[({[]','[])}]']
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162 let num = s:GetPair(pattern[0],pattern[1],'bW',2000)
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163 else
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164 let num = s:GetPair('[({[]','[])}]','bW',2000)
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165 endif
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166 let b:js_cache = [v:lnum,num,line('.') == v:lnum ? b:js_cache[2] : col('.')]
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167
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168 if l:line =~ s:line_pre . '[])}]'
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169 return indent(num)
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170 endif
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171
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172 call cursor(b:js_cache[1],b:js_cache[2])
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173
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174 let swcase = getline(l:lnum) =~# s:expr_case
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175 let pline = swcase ? getline(l:lnum) : substitute(getline(l:lnum), '\%(:\@<!\/\/.*\)$', '','')
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176 let inb = num == 0 || num < l:lnum && ((l:line !~ s:line_pre . ',' && pline !~ ',' . s:line_term) || s:IsBlock())
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177 let switch_offset = num == 0 || s:OneScope(num, strpart(getline(num),0,b:js_cache[2] - 1),1) !=# 'switch' ? 0 :
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178 \ &cino !~ ':' || !has('float') ? s:sw() :
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179 \ float2nr(str2float(matchstr(&cino,'.*:\zs[-0-9.]*')) * (&cino =~# '.*:[^,]*s' ? s:sw() : 1))
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180
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181 " most significant, find the indent amount
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182 if inb && !swcase && ((l:line =~# g:javascript_opfirst || pline =~# g:javascript_continuation) ||
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183 \ num < l:lnum && s:OneScope(l:lnum,pline,0) =~# '\<\%(for\|each\|if\|let\|no\sb\|w\%(hile\|ith\)\)\>' &&
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184 \ l:line !~ s:line_pre . '{')
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185 return (num > 0 ? indent(num) : -s:sw()) + (s:sw() * 2) + switch_offset
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parents: 6823
diff changeset
186 elseif num > 0
9eaf8ef656e9 commit https://github.com/vim/vim/commit/0952131376a517fc12dc5ae908a97018b4ee23f0
Christian Brabandt <cb@256bit.org>
parents: 6823
diff changeset
187 return indent(num) + s:sw() + switch_offset
9eaf8ef656e9 commit https://github.com/vim/vim/commit/0952131376a517fc12dc5ae908a97018b4ee23f0
Christian Brabandt <cb@256bit.org>
parents: 6823
diff changeset
188 endif
9eaf8ef656e9 commit https://github.com/vim/vim/commit/0952131376a517fc12dc5ae908a97018b4ee23f0
Christian Brabandt <cb@256bit.org>
parents: 6823
diff changeset
189
9eaf8ef656e9 commit https://github.com/vim/vim/commit/0952131376a517fc12dc5ae908a97018b4ee23f0
Christian Brabandt <cb@256bit.org>
parents: 6823
diff changeset
190 endfunction
9eaf8ef656e9 commit https://github.com/vim/vim/commit/0952131376a517fc12dc5ae908a97018b4ee23f0
Christian Brabandt <cb@256bit.org>
parents: 6823
diff changeset
191
9eaf8ef656e9 commit https://github.com/vim/vim/commit/0952131376a517fc12dc5ae908a97018b4ee23f0
Christian Brabandt <cb@256bit.org>
parents: 6823
diff changeset
192
9eaf8ef656e9 commit https://github.com/vim/vim/commit/0952131376a517fc12dc5ae908a97018b4ee23f0
Christian Brabandt <cb@256bit.org>
parents: 6823
diff changeset
193 let &cpo = s:cpo_save
9eaf8ef656e9 commit https://github.com/vim/vim/commit/0952131376a517fc12dc5ae908a97018b4ee23f0
Christian Brabandt <cb@256bit.org>
parents: 6823
diff changeset
194 unlet s:cpo_save