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1 " Vim indent file
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2 " Language: Tcl
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3 " Maintainer: Nikolai Weibull <now@bitwi.se>
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4 " Latest Revision: 2006-12-20
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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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13 setlocal nosmartindent
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14
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15 if exists("*GetTclIndent")
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16 finish
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17 endif
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18
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19 function s:prevnonblanknoncomment(lnum)
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20 let lnum = prevnonblank(a:lnum)
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21 while lnum > 0
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22 let line = getline(lnum)
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23 if line !~ '^\s*\(#\|$\)'
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24 break
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25 endif
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26 let lnum = prevnonblank(lnum - 1)
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27 endwhile
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28 return lnum
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29 endfunction
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30
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31 function s:count_braces(lnum, count_open)
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32 let n_open = 0
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33 let n_close = 0
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34 let line = getline(a:lnum)
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35 let pattern = '[{}]'
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36 let i = match(line, pattern)
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37 while i != -1
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38 if synIDattr(synID(a:lnum, i + 1, 0), 'name') !~ 'tcl\%(Comment\|String\)'
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39 if line[i] == '{'
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40 let n_open += 1
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41 elseif line[i] == '}'
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42 if n_open > 0
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43 let n_open -= 1
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44 else
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45 let n_close += 1
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46 endif
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47 endif
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48 endif
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49 let i = match(line, pattern, i + 1)
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50 endwhile
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51 return a:count_open ? n_open : n_close
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52 endfunction
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53
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54 function GetTclIndent()
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55 let line = getline(v:lnum)
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56 if line =~ '^\s*\*'
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57 return cindent(v:lnum)
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58 elseif line =~ '^\s*}'
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59 return indent(v:lnum) - &sw
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60 endif
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61
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62 let pnum = s:prevnonblanknoncomment(v:lnum - 1)
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63 if pnum == 0
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64 return 0
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65 endif
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66
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67 let ind = indent(pnum) + s:count_braces(pnum, 1) * &sw
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68
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69 let pline = getline(pnum)
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70 if pline =~ '}\s*$'
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71 let ind -= (s:count_braces(pnum, 0) - (pline =~ '^\s*}' ? 1 : 0)) * &sw
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72 endif
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73
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74 return ind
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75 endfunction
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