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1 " Vim indent file
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2 " Language: Autoconf configure.{ac,in} file
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3 " Maintainer: Nikolai Weibull <source@pcppopper.org>
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4 " URL: http://www.pcppopper.org/vim/indent/pcp/config/
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5 " Latest Revision: 2004-04-25
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6 " arch-tag: 7779c341-796f-408e-80e4-a55c26b519a4
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7 " TODO: how about nested [()]'s in one line
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8 " what's wrong with '\\\@!'?
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9
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10 " Only load this indent file when no other was loaded.
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11 if exists("b:did_indent")
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12 finish
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13 endif
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14
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15 source <sfile>:p:h/sh.vim " will set b:did_indent
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16
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17 setlocal indentexpr=GetConfigIndent()
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18 setlocal indentkeys=!^F,o,O,=then,=do,=else,=elif,=esac,=fi,=fin,=fil,=done
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19
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20 " Only define the function once.
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21 if exists("*GetConfigIndent")
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22 finish
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23 endif
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24
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25 " get the offset (indent) of the end of the match of 'regexp' in 'line'
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26 function s:GetOffsetOf(line, regexp)
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27 let end = matchend(a:line, a:regexp)
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28 let width = 0
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29 let i = 0
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30 while i < end
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31 if a:line[i] != "\t"
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32 let width = width + 1
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33 else
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34 let width = width + &ts - (width % &ts)
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35 endif
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36 let i = i + 1
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37 endwhile
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38 return width
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39 endfunction
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40
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41 function GetConfigIndent()
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42 " Find a non-blank line above the current line.
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43 let lnum = prevnonblank(v:lnum - 1)
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44
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45 " Hit the start of the file, use zero indent.
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46 if lnum == 0
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47 return 0
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48 endif
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49
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50 " where to put this
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51 let ind = GetShIndent()
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52 let line = getline(lnum)
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53
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54 " if previous line has unmatched, unescaped opening parentheses,
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55 " indent to its position. TODO: not failsafe if multiple ('s
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56 if line =~ '\\\@<!([^)]*$'
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57 let ind = s:GetOffsetOf(line, '\\\@!(')
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58 endif
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59
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60 " if previous line has unmatched opening bracket,
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61 " indent to its position. TODO: same as above
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62 if line =~ '\[[^]]*$'
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63 let ind = s:GetOffsetOf(line, '\[')
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64 endif
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65
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66 " if previous line had an unmatched closing parantheses,
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67 " indent to the matching opening parantheses
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68 if line =~ '[^(]*\\\@<!)$'
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69 call search(')', 'bW')
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70 let lnum = searchpair('\\\@<!(', '', ')', 'bWn')
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71 let ind = indent(lnum)
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72 endif
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73
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74 " if previous line had an unmatched closing bracket,
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75 " indent to the matching opening bracket
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76 if line =~ '[^[]*]$'
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77 call search(']', 'bW')
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78 let lnum = searchpair('\[', '', ']', 'bWn')
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79 let ind = indent(lnum)
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80 endif
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81
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82 return ind
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83 endfunction
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84
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85 " vim: set sts=2 sw=2:
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