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7
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1 " Vim indent file
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375
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2 " Language: Tcl
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3 " Maintainer: Nikolai Weibull <nikolai+work.vim@bitwi.se>
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4 " Latest Revision: 2005-06-29
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7
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5
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6 if exists("b:did_indent")
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7 finish
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8 endif
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9 let b:did_indent = 1
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10
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11 setlocal indentexpr=GetTclIndent()
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12 setlocal indentkeys=0{,0},!^F,o,O,0]
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7
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13
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14 if exists("*GetTclIndent")
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15 finish
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16 endif
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17
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375
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18 function s:prevnonblanknoncomment(lnum)
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19 let lnum = prevnonblank(a:lnum)
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20 while lnum > 0
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21 let line = getline(lnum)
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22 if line !~ '^\s*\(#\|$\)'
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23 break
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24 endif
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25 let lnum = prevnonblank(lnum - 1)
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26 endwhile
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27 return lnum
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28 endfunction
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29
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30 function s:count_braces(lnum, count_open)
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31 let n_open = 0
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32 let n_close = 0
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33 let line = getline(a:lnum)
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34 let pattern = '\\\@<![{}]'
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35 let i = match(line, pattern)
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36 while i != -1
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37 if synIDattr(synID(a:lnum, i + 1, 1), 'name') !~ 'tcl\%(Comment\|String\)'
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38 if line[i] == '{'
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39 let n_open += 1
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40 elseif line[i] == '}'
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41 if n_open > 0
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42 let n_open -= 1
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43 else
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44 let n_close += 1
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45 endif
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46 endif
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47 endif
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48 let i = match(line, pattern, i + 1)
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49 endwhile
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50 return a:count_open ? n_open : n_close
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51 endfunction
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52
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375
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53 function GetTclIndent()
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54 let pnum = s:prevnonblanknoncomment(v:lnum - 1)
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55 if pnum == 0
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56 return 0
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57 endif
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58
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59 let ind = indent(pnum) + s:count_braces(pnum, 1) * &sw
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60 if getline(pnum) =~ '\\$'
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61 let ind += &sw
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62 endif
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63
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64 let pnum = s:prevnonblanknoncomment(pnum - 1)
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65 if pnum > 0 && getline(pnum) =~ '\\$'
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66 let ind -= &sw
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67 endif
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68
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69 return ind - s:count_braces(v:lnum, 0) * &sw
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70 endfunction
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