annotate runtime/indent/eiffel.vim @ 11003:bf484fd6443a

Added tag v8.0.0390 for changeset 35d4975a5bb588773c962fde166f6ff560d4bed4
author Christian Brabandt <cb@256bit.org>
date Wed, 01 Mar 2017 12:30:04 +0100
parents 9cb3a75a20b9
children d0a20101ecb2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 " Vim indent file
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2 " Language: Eiffel
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3 " Maintainer: Jocelyn Fiat <jfiat@eiffel.com>
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4 " Previous-Maintainer: David Clarke <gadicath@dishevelled.net>
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5 " Contributions from: Thilo Six
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6 " $Date: 2004/12/09 21:33:52 $
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7 " $Revision: 1.3 $
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8 " URL: https://github.com/eiffelhub/vim-eiffel
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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 let b:did_indent = 1
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15
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16 setlocal indentexpr=GetEiffelIndent()
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17 setlocal nolisp
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18 setlocal nosmartindent
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19 setlocal nocindent
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20 setlocal autoindent
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21 setlocal comments=:--
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22 setlocal indentkeys+==end,=else,=ensure,=require,=check,=loop,=until
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23 setlocal indentkeys+==creation,=feature,=inherit,=class,=is,=redefine,=rename,=variant
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24 setlocal indentkeys+==invariant,=do,=local,=export
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25
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26 let b:undo_indent = "setl smartindent< indentkeys< indentexpr< autoindent< comments< "
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27
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28 " Define some stuff
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29 " keywords grouped by indenting
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30 let s:trust_user_indent = '\(+\)\(\s*\(--\).*\)\=$'
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31 let s:relative_indent = '^\s*\(deferred\|class\|feature\|creation\|inherit\|loop\|from\|until\|if\|else\|elseif\|ensure\|require\|check\|do\|local\|invariant\|variant\|rename\|redefine\|do\|export\)\>'
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32 let s:outdent = '^\s*\(else\|invariant\|variant\|do\|require\|until\|loop\|local\)\>'
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33 let s:no_indent = '^\s*\(class\|feature\|creation\|inherit\)\>'
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34 let s:single_dent = '^[^-]\+[[:alnum:]]\+ is\(\s*\(--\).*\)\=$'
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35 let s:inheritance_dent = '\s*\(redefine\|rename\|export\)\>'
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36
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37
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38 " Only define the function once.
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39 if exists("*GetEiffelIndent")
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40 finish
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41 endif
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42
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43 let s:keepcpo= &cpo
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44 set cpo&vim
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45
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46 function GetEiffelIndent()
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47
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48 " Eiffel Class indenting
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49 "
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50 " Find a non-blank line above the current line.
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51 let lnum = prevnonblank(v:lnum - 1)
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52
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53 " At the start of the file use zero indent.
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54 if lnum == 0
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55 return 0
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56 endif
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57
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58 " trust the user's indenting
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59 if getline(lnum) =~ s:trust_user_indent
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60 return -1
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61 endif
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62
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63 " Add a 'shiftwidth' after lines that start with an indent word
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64 let ind = indent(lnum)
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65 if getline(lnum) =~ s:relative_indent
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66 let ind = ind + &sw
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67 endif
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68
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69 " Indent to single indent
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70 if getline(v:lnum) =~ s:single_dent && getline(v:lnum) !~ s:relative_indent
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71 \ && getline(v:lnum) !~ '\s*\<\(and\|or\|implies\)\>'
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72 let ind = &sw
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73 endif
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74
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75 " Indent to double indent
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76 if getline(v:lnum) =~ s:inheritance_dent
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77 let ind = 2 * &sw
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78 endif
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79
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80 " Indent line after the first line of the function definition
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81 if getline(lnum) =~ s:single_dent
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82 let ind = ind + &sw
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83 endif
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84
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85 " The following should always be at the start of a line, no indenting
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86 if getline(v:lnum) =~ s:no_indent
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87 let ind = 0
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88 endif
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89
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90 " Subtract a 'shiftwidth', if this isn't the first thing after the 'is'
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91 " or first thing after the 'do'
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92 if getline(v:lnum) =~ s:outdent && getline(v:lnum - 1) !~ s:single_dent
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93 \ && getline(v:lnum - 1) !~ '^\s*do\>'
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94 let ind = ind - &sw
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95 endif
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96
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97 " Subtract a shiftwidth for end statements
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98 if getline(v:lnum) =~ '^\s*end\>'
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99 let ind = ind - &sw
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100 endif
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101
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102 " set indent of zero end statements that are at an indent of 3, this should
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103 " only ever be the class's end.
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104 if getline(v:lnum) =~ '^\s*end\>' && ind == &sw
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105 let ind = 0
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106 endif
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107
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108 return ind
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109 endfunction
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110
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111 let &cpo = s:keepcpo
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112 unlet s:keepcpo
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113
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114 " vim:sw=2