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1 " =============================================================================
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2 "
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3 " Program: CMake - Cross-Platform Makefile Generator
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4 " Module: $RCSfile: cmake-indent.vim,v $
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5 " Language: VIM
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6 " Date: $Date: 2006/09/23 21:09:08 $
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7 " Version: $Revision: 1.7 $
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8 "
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9 " =============================================================================
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10
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11 " Vim indent file
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12 " Language: CMake (ft=cmake)
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13 " Author: Andy Cedilnik <andy.cedilnik@kitware.com>
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14 " Maintainer: Andy Cedilnik <andy.cedilnik@kitware.com>
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15 " Last Change: $Date: 2006/09/23 21:09:08 $
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16 " Version: $Revision: 1.7 $
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17 "
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18 " Licence: The CMake license applies to this file. See
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19 " http://www.cmake.org/HTML/Copyright.html
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20 " This implies that distribution with Vim is allowed
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21
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22 if exists("b:did_indent")
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23 finish
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24 endif
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25 let b:did_indent = 1
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26
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27 setlocal indentexpr=CMakeGetIndent(v:lnum)
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28
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29 " Only define the function once.
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30 if exists("*CMakeGetIndent")
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31 finish
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32 endif
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33
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34 fun! CMakeGetIndent(lnum)
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35 let this_line = getline(a:lnum)
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36
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37 " Find a non-blank line above the current line.
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38 let lnum = a:lnum
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39 let lnum = prevnonblank(lnum - 1)
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40 let previous_line = getline(lnum)
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41
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42 " Hit the start of the file, use zero indent.
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43 if lnum == 0
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44 return 0
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45 endif
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46
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47 let ind = indent(lnum)
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48
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49 let or = '\|'
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50 " Regular expressions used by line indentation function.
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51 let cmake_regex_comment = '#.*'
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52 let cmake_regex_identifier = '[A-Za-z][A-Za-z0-9_]*'
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53 let cmake_regex_quoted = '"\([^"\\]\|\\.\)*"'
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54 let cmake_regex_arguments = '\(' . cmake_regex_quoted .
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55 \ or . '\$(' . cmake_regex_identifier . ')' .
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56 \ or . '[^()\\#"]' . or . '\\.' . '\)*'
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57
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58 let cmake_indent_comment_line = '^\s*' . cmake_regex_comment
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59 let cmake_indent_blank_regex = '^\s*$'
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60 let cmake_indent_open_regex = '^\s*' . cmake_regex_identifier .
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61 \ '\s*(' . cmake_regex_arguments .
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62 \ '\(' . cmake_regex_comment . '\)\?$'
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63
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64 let cmake_indent_close_regex = '^' . cmake_regex_arguments .
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65 \ ')\s*' .
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66 \ '\(' . cmake_regex_comment . '\)\?$'
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67
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68 let cmake_indent_begin_regex = '^\s*\(IF\|MACRO\|FOREACH\|ELSE\|ELSEIF\|WHILE\)\s*('
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69 let cmake_indent_end_regex = '^\s*\(ENDIF\|ENDFOREACH\|ENDMACRO\|ELSE\|ELSEIF\|ENDWHILE\)\s*('
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70
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71 " Add
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72 if previous_line =~? cmake_indent_comment_line " Handle comments
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73 let ind = ind
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74 else
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75 if previous_line =~? cmake_indent_begin_regex
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76 let ind = ind + &sw
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77 endif
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78 if previous_line =~? cmake_indent_open_regex
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79 let ind = ind + &sw
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80 endif
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81 endif
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82
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83 " Subtract
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84 if this_line =~? cmake_indent_end_regex
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85 let ind = ind - &sw
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86 endif
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87 if previous_line =~? cmake_indent_close_regex
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88 let ind = ind - &sw
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89 endif
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90
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91 return ind
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92 endfun
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