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1 " Vim settings file
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2 " Language: Fortran90 (and Fortran95, Fortran77, F and elf90)
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3 " Version: 0.44
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4 " Last Change: 2003 May 18
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5 " URL: http://www.unb.ca/chem/ajit/ftplugin/fortran.vim
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6 " Maintainer: Ajit J. Thakkar <ajit@unb.ca>; <http://www.unb.ca/chem/ajit/>
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7 " Usage: Do :help fortran-plugin from Vim
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8
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9 " Only do these settings when not done yet for this buffer
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10 if exists("b:did_ftplugin")
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11 finish
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12 endif
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13
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14 " Don't do other file type settings for this buffer
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15 let b:did_ftplugin = 1
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16
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17 " Determine whether this is a fixed or free format source file
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18 " if this hasn't been done yet
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19 if !exists("b:fortran_fixed_source")
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20 if exists("fortran_free_source")
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21 " User guarantees free source form
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22 let b:fortran_fixed_source = 0
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23 elseif exists("fortran_fixed_source")
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24 " User guarantees fixed source form
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25 let b:fortran_fixed_source = 1
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26 else
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27 " f90 and f95 allow both fixed and free source form
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28 " assume fixed source form unless signs of free source form
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29 " are detected in the first five columns of the first 25 lines
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30 " Detection becomes more accurate and time-consuming if more lines
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31 " are checked. Increase the limit below if you keep lots of comments at
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32 " the very top of each file and you have a fast computer
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33 let s:lmax = 25
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34 if ( s:lmax > line("$") )
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35 let s:lmax = line("$")
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36 endif
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37 let b:fortran_fixed_source = 1
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38 let s:ln=1
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39 while s:ln <= s:lmax
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40 let s:test = strpart(getline(s:ln),0,5)
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41 if s:test[0] !~ '[Cc*!#]' && s:test !~ '^ \+[!#]' && s:test =~ '[^ 0-9\t]'
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42 let b:fortran_fixed_source = 0
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43 break
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44 endif
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45 let s:ln = s:ln + 1
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46 endwhile
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47 endif
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48 endif
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49
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50 " Set comments and textwidth according to source type
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51 if (b:fortran_fixed_source == 1)
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52 setlocal comments=:!,:*,:C
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53 " Fixed format requires a textwidth of 72 for code
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54 setlocal tw=72
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55 " If you need to add "&" on continued lines so that the code is
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56 " compatible with both free and fixed format, then you should do so
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57 " in column 73 and uncomment the next line
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58 " setlocal tw=73
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59 else
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60 setlocal comments=:!
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61 " Free format allows a textwidth of 132 for code but 80 is more usual
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62 setlocal tw=80
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63 endif
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64
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65 " Set commentstring for foldmethod=marker
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66 setlocal cms=!%s
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67
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68 " Tabs are not a good idea in Fortran so the default is to expand tabs
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69 if !exists("fortran_have_tabs")
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70 setlocal expandtab
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71 endif
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72
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73 " Set 'formatoptions' to break comment and text lines but allow long lines
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74 setlocal fo+=tcql
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75
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76 setlocal include=^#\\=\\s*include\\s\\+
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77
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78 let s:cposet=&cpoptions
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79 set cpoptions-=C
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80
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81 " Define patterns for the matchit plugin
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82 if !exists("b:match_words")
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83 let s:notend = '\%(\<end\s\+\)\@<!'
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84 let s:notselect = '\%(\<select\s\+\)\@<!'
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85 let s:notelse = '\%(\<end\s\+\|\<else\s\+\)\@<!'
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86 let b:match_ignorecase = 1
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87 let b:match_words =
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88 \ '\<select\s*case\>:' . s:notselect. '\<case\>:\<end\s*select\>,' .
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89 \ s:notelse . '\<if\s*(.\+)\s*then\>:' .
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90 \ '\<else\s*\%(if\s*(.\+)\s*then\)\=\>:\<end\s*if\>,'.
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91 \ 'do\s\+\(\d\+\):\%(^\s*\)\@<=\1\s,'.
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92 \ s:notend . '\<do\>:\<end\s*do\>,'.
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93 \ s:notelse . '\<where\>:\<elsewhere\>:\<end\s*where\>,'.
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94 \ s:notend . '\<type\s*[^(]:\<end\s*type\>,'.
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95 \ s:notend . '\<interface\>:\<end\s*interface\>,'.
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96 \ s:notend . '\<subroutine\>:\<end\s*subroutine\>,'.
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97 \ s:notend . '\<function\>:\<end\s*function\>,'.
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98 \ s:notend . '\<module\>:\<end\s*module\>,'.
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99 \ s:notend . '\<program\>:\<end\s*program\>'
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100 endif
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101
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102 " File filters for :browse e
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103 if has("gui_win32") && !exists("b:browsefilter")
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104 let b:browsefilter = "Fortran Files (*.f;*.F;*.for;*.f77;*.f90;*.f95;*.fpp;*.ftn)\t*.f;*.F;*.for;*.f77;*.f90;*.f95;*.fpp;*.ftn\n" .
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105 \ "All Files (*.*)\t*.*\n"
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106 endif
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107
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108 let b:undo_ftplugin = "setl fo< com< tw< cms< et< inc<"
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109 \ . "| unlet! b:match_ignorecase b:match_words b:browsefilter"
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110
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111 let &cpoptions=s:cposet
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112 unlet s:cposet
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113
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114 " vim:sw=2
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