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7
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1 " Matlab indent file
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2 " Language: Matlab
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3 " Maintainer: Christophe Poucet <christophe.poucet@pandora.be>
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4 " Last Change: 6 January, 2001
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5
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6 " Only load this indent file when no other was loaded.
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7 if exists("b:did_indent")
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8 finish
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9 endif
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10 let b:did_indent = 1
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11
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12 " Some preliminary setting
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13 setlocal indentkeys=!,o,O=end,=case,=else,=elseif,=otherwise,=catch
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14
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15
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16 setlocal indentexpr=GetMatlabIndent(v:lnum)
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17
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18 " Only define the function once.
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19 if exists("*GetMatlabIndent")
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20 finish
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21 endif
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22
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23 function GetMatlabIndent(lnum)
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24 " Give up if this line is explicitly joined.
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25 if getline(a:lnum - 1) =~ '\\$'
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26 return -1
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27 endif
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28
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29 " Search backwards for the first non-empty line.
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30 let plnum = a:lnum - 1
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31 while plnum > 0 && getline(plnum) =~ '^\s*$'
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32 let plnum = plnum - 1
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33 endwhile
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34
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35 if plnum == 0
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36 " This is the first non-empty line, use zero indent.
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37 return 0
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38 endif
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39
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40 let curind = indent(plnum)
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41
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42 " If the current line is a stop-block statement...
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43 if getline(v:lnum) =~ '^\s*\(end\|else\|elseif\|case\|otherwise\|catch\)\>'
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44 " See if this line does not follow the line right after an openblock
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45 if getline(plnum) =~ '^\s*\(for\|if\|else\|elseif\|case\|while\|switch\|try\|otherwise\|catch\)\>'
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46 " See if the user has already dedented
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11518
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47 elseif indent(v:lnum) > curind - shiftwidth()
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7
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48 " If not, recommend one dedent
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11518
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49 let curind = curind - shiftwidth()
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7
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50 else
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51 " Otherwise, trust the user
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52 return -1
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53 endif
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54 " endif
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55
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56 " If the previous line opened a block
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57 elseif getline(plnum) =~ '^\s*\(for\|if\|else\|elseif\|case\|while\|switch\|try\|otherwise\|catch\)\>'
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58 " See if the user has already indented
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11518
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59 if indent(v:lnum) < curind + shiftwidth()
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7
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60 "If not, recommend indent
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11518
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61 let curind = curind + shiftwidth()
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7
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62 else
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63 " Otherwise, trust the user
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64 return -1
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65 endif
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66 endif
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67
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68
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69
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70 " If we got to here, it means that the user takes the standardversion, so we return it
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71 return curind
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72 endfunction
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73
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74 " vim:sw=2
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