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annotate runtime/indent/javascript.vim @ 9900:daecffbd0322 v7.4.2224

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commit https://github.com/vim/vim/commit/af9c4c9b5761c4c074237d87e2c95713bf721eab Author: Bram Moolenaar <Bram@vim.org> Date: Wed Aug 17 21:51:56 2016 +0200 patch 7.4.2224 Problem: Compiler warnings with older compiler and 64 bit numbers. Solution: Add "LL" to large values. (Mike Williams)
author Christian Brabandt <cb@256bit.org>
date Wed, 17 Aug 2016 22:00:07 +0200
parents 9eaf8ef656e9
children 03fa8a51e9dc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 " Vim indent file
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2 " Language: Javascript
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3 " Maintainer: vim-javascript community
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4 " URL: https://github.com/pangloss/vim-javascript
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5 " Last Change: August 12, 2016
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6
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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
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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< 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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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 = "line('.') < (prevnonblank(v:lnum) - 2000) ? dummy : synIDattr(synID(line('.'),col('.'),0),'name') =~? '".s:syng_strcom."'"
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51 function s:lookForParens(start,end,flags,time)
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52 if has('reltime')
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53 return searchpair(a:start,'',a:end,a:flags,s:skip_expr,0,a:time)
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54 else
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55 return searchpair(a:start,'',a:end,a:flags,0,0)
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56 endif
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57 endfunction
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59 let s:line_term = '\%(\s*\%(\/\*.\{-}\*\/\s*\)\=\)\@>$'
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61 " configurable regexes that define continuation lines, not including (, {, or [.
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62 if !exists('g:javascript_opfirst')
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63 let g:javascript_opfirst = '\%([<>,:?^%]\|\([-/.+]\)\%(\1\|\*\|\/\)\@!\|\*\/\@!\|=>\@!\||\|&\|in\%(stanceof\)\=\>\)'
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64 endif
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65 let g:javascript_opfirst = s:line_pre . g:javascript_opfirst
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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 let g:javascript_continuation .= s:line_term
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71
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72 function s:Onescope(lnum,text,add)
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73 return a:text =~# '\%(\<else\|\<do\|=>' . (a:add ? '\|\<try\|\<finally' : '' ) . '\)' . s:line_term ||
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74 \ ((a:add && a:text =~ s:line_pre . '$' && search('\%' . s:PrevCodeLine(a:lnum - 1) . 'l.)' . s:line_term)) ||
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75 \ cursor(a:lnum, match(a:text, ')' . s:line_term)) > -1) &&
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76 \ s:lookForParens('(', ')', 'cbW', 100) > 0 && search((a:add ?
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77 \ '\%(function\*\|[[:lower:][:upper:]_$][[:digit:][:lower:][:upper:]_$]*\)' :
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78 \ '\<\%(for\%(\s\+each\)\=\|if\|let\|w\%(hile\|ith\)\)') . '\_s*\%#\C','bW') &&
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79 \ (a:add || (expand('<cword>') ==# 'while' ? !s:lookForParens('\<do\>\C', '\<while\>\C','bW',100) : 1))
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80 endfunction
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81
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82 " Auxiliary Functions {{{2
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83
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84 " strip line of comment
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85 function s:StripLine(c)
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86 return a:c !~# s:expr_case ? substitute(a:c, '\%(:\@<!\/\/.*\)$', '','') : a:c
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87 endfunction
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88
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89 " Find line above 'lnum' that isn't empty, in a comment, or in a string.
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90 function s:PrevCodeLine(lnum)
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91 let l:lnum = prevnonblank(a:lnum)
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92 while l:lnum > 0
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93 if synIDattr(synID(l:lnum,matchend(getline(l:lnum), '^\s*[^''"]'),0),'name') !~? s:syng_strcom
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94 break
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95 endif
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96 let l:lnum = prevnonblank(l:lnum - 1)
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97 endwhile
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98 return l:lnum
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99 endfunction
1118
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100
9860
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101 " Check if line 'lnum' has a balanced amount of parentheses.
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102 function s:Balanced(lnum)
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103 let open_0 = 0
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104 let open_2 = 0
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105 let open_4 = 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:lookForParens(pattern[0],pattern[1],'bW',2000)
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163 else
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164 let num = s:lookForParens('[({[]','[])}]','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 let pline = s:StripLine(getline(l:lnum))
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173 let inb = num == 0 ? 1 : (s:Onescope(num, s:StripLine(strpart(getline(num),0,b:js_cache[2] - 1)),1) ||
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174 \ (l:line !~ s:line_pre . ',' && pline !~ ',' . s:line_term)) && num < l:lnum
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175 let switch_offset = (!inb || num == 0) || expand("<cword>") !=# 'switch' ? 0 : &cino !~ ':' || !has('float') ? s:sw() :
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176 \ float2nr(str2float(matchstr(&cino,'.*:\zs[-0-9.]*')) * (&cino =~# '.*:[^,]*s' ? s:sw() : 1))
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177
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178 " most significant, find the indent amount
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179 if (inb && (l:line =~# g:javascript_opfirst ||
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180 \ (pline =~# g:javascript_continuation && pline !~# s:expr_case && (pline !~ ':' . s:line_term || l:line !~#
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181 \ s:line_pre . '\%(d\%(o\|ebugger\)\|else\|f\%(or\|inally\)\|if\|let\|switch\|t\%(hrow\|ry\)\|w\%(hile\|ith\)\)\>')))) ||
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182 \ (num < l:lnum && s:Onescope(l:lnum,pline,0) && l:line !~ s:line_pre . '{')
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183 return (num > 0 ? indent(num) : -s:sw()) + (s:sw() * 2) + switch_offset
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184 elseif num > 0
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185 return indent(num) + s:sw() + switch_offset
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186 endif
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187
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188 endfunction
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189
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190
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191 let &cpo = s:cpo_save
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192 unlet s:cpo_save