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7
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1 " Vim indent file
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375
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2 " Language: Autoconf configure.{ac,in} file
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3 " Maintainer: Nikolai Weibull <nikolai+work.vim@bitwi.se>
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389
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4 " Latest Revision: 2005-06-30
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375
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5 " TODO: how about nested [()]'s in one line
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6 " what's wrong with '\\\@!'?
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7
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7
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8 " Only load this indent file when no other was loaded.
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9 if exists("b:did_indent")
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10 finish
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11 endif
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12
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375
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13 runtime! indent/sh.vim " will set b:did_indent
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7
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14
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15 setlocal indentexpr=GetConfigIndent()
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16 setlocal indentkeys=!^F,o,O,=then,=do,=else,=elif,=esac,=fi,=fin,=fil,=done
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17
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18 " Only define the function once.
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19 if exists("*GetConfigIndent")
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20 finish
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21 endif
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22
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23 " get the offset (indent) of the end of the match of 'regexp' in 'line'
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24 function s:GetOffsetOf(line, regexp)
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25 let end = matchend(a:line, a:regexp)
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26 let width = 0
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27 let i = 0
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28 while i < end
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29 if a:line[i] != "\t"
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30 let width = width + 1
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31 else
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32 let width = width + &ts - (width % &ts)
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33 endif
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34 let i = i + 1
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35 endwhile
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36 return width
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37 endfunction
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38
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39 function GetConfigIndent()
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40 " Find a non-blank line above the current line.
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41 let lnum = prevnonblank(v:lnum - 1)
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42
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43 " Hit the start of the file, use zero indent.
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44 if lnum == 0
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45 return 0
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46 endif
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47
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48 " where to put this
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49 let ind = GetShIndent()
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50 let line = getline(lnum)
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51
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52 " if previous line has unmatched, unescaped opening parentheses,
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53 " indent to its position. TODO: not failsafe if multiple ('s
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54 if line =~ '\\\@<!([^)]*$'
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55 let ind = s:GetOffsetOf(line, '\\\@!(')
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56 endif
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57
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58 " if previous line has unmatched opening bracket,
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59 " indent to its position. TODO: same as above
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60 if line =~ '\[[^]]*$'
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61 let ind = s:GetOffsetOf(line, '\[')
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62 endif
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63
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64 " if previous line had an unmatched closing parantheses,
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65 " indent to the matching opening parantheses
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66 if line =~ '[^(]*\\\@<!)$'
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67 call search(')', 'bW')
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68 let lnum = searchpair('\\\@<!(', '', ')', 'bWn')
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69 let ind = indent(lnum)
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70 endif
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71
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72 " if previous line had an unmatched closing bracket,
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73 " indent to the matching opening bracket
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74 if line =~ '[^[]*]$'
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75 call search(']', 'bW')
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76 let lnum = searchpair('\[', '', ']', 'bWn')
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77 let ind = indent(lnum)
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78 endif
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79
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80 return ind
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81 endfunction
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82
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83 " vim: set sts=2 sw=2:
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