28517
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1 " Vim indent file
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2 " Language: Kuka Robot Language
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3 " Maintainer: Patrick Meiser-Knosowski <knosowski@graeffrobotics.de>
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4 " Version: 3.0.0
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5 " Last Change: 15. Apr 2022
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6 " Credits: Based on indent/vim.vim
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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 let b:did_indent = 1
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13
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14 setlocal nolisp
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15 setlocal nocindent
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16 setlocal nosmartindent
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17 setlocal autoindent
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18 setlocal indentexpr=GetKrlIndent()
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19 setlocal indentkeys=!^F,o,O,=~end,0=~else,0=~case,0=~default,0=~until,0=~continue,=~part
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20 let b:undo_indent = "setlocal lisp< cindent< smartindent< autoindent< indentexpr< indentkeys<"
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21
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22 if get(g:,'krlSpaceIndent',1)
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23 " Use spaces, not tabs, for indention, 2 is enough.
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24 " More or even tabs would waste valuable space on the teach pendant.
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25 setlocal softtabstop=2
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26 setlocal shiftwidth=2
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27 setlocal expandtab
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28 setlocal shiftround
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29 let b:undo_indent = b:undo_indent." softtabstop< shiftwidth< expandtab< shiftround<"
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30 endif
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31
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32 " Only define the function once.
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33 if exists("*GetKrlIndent")
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34 finish
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35 endif
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36 let s:keepcpo = &cpo
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37 set cpo&vim
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38
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39 function GetKrlIndent() abort
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40
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41 let currentLine = getline(v:lnum)
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42 if currentLine =~? '\v^;(\s*(end)?fold>)@!' && !get(g:, 'krlCommentIndent', 0)
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43 " If current line has a ; in column 1 and is no fold, keep zero indent.
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44 " This may be usefull if code is commented out at the first column.
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45 return 0
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46 endif
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47
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48 " Find a non-blank line above the current line.
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49 let preNoneBlankLineNum = s:KrlPreNoneBlank(v:lnum - 1)
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50 if preNoneBlankLineNum == 0
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51 " At the start of the file use zero indent.
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52 return 0
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53 endif
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54
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55 let preNoneBlankLine = getline(preNoneBlankLineNum)
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56 let ind = indent(preNoneBlankLineNum)
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57
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58 " Define add 'shiftwidth' pattern
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59 let addShiftwidthPattern = '\v^\s*('
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60 if get(g:, 'krlIndentBetweenDef', 1)
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61 let addShiftwidthPattern ..= '(global\s+)?def(fct|dat)?\s+\$?\w'
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62 let addShiftwidthPattern ..= '|'
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63 endif
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64 let addShiftwidthPattern ..= 'if>|while>|for>|loop>'
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65 let addShiftwidthPattern ..= '|else>'
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66 let addShiftwidthPattern ..= '|case>|default>'
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67 let addShiftwidthPattern ..= '|repeat>'
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68 let addShiftwidthPattern ..= '|skip>|(ptp_)?spline>'
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69 let addShiftwidthPattern ..= '|time_block\s+(start|part)>'
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70 let addShiftwidthPattern ..= '|const_vel\s+start>'
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71 let addShiftwidthPattern ..= ')'
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72
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73 " Define Subtract 'shiftwidth' pattern
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74 let subtractShiftwidthPattern = '\v^\s*('
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75 if get(g:, 'krlIndentBetweenDef', 1)
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76 let subtractShiftwidthPattern ..= 'end(fct|dat)?>'
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77 let subtractShiftwidthPattern ..= '|'
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78 endif
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79 let subtractShiftwidthPattern ..= 'end(if|while|for|loop)>'
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80 let subtractShiftwidthPattern ..= '|else>'
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81 let subtractShiftwidthPattern ..= '|case>|default>|endswitch>'
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82 let subtractShiftwidthPattern ..= '|until>'
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83 let subtractShiftwidthPattern ..= '|end(skip|spline)>'
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84 let subtractShiftwidthPattern ..= '|time_block\s+(part|end)>'
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85 let subtractShiftwidthPattern ..= '|const_vel\s+end>'
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86 let subtractShiftwidthPattern ..= ')'
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87
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88 " Add shiftwidth
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89 if preNoneBlankLine =~? addShiftwidthPattern
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90 let ind += &sw
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91 endif
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92
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93 " Subtract shiftwidth
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94 if currentLine =~? subtractShiftwidthPattern
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95 let ind = ind - &sw
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96 endif
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97
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98 " First case after a switch gets the indent of the switch.
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99 if currentLine =~? '\v^\s*case>'
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100 \&& preNoneBlankLine =~? '\v^\s*switch>'
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101 let ind = ind + &sw
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102 endif
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103
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104 " align continue with the following instruction
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105 if currentLine =~? '\v^\s*continue>'
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106 \&& getline(v:lnum + 1) =~? subtractShiftwidthPattern
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107 let ind = ind - &sw
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108 endif
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109
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110 return ind
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111 endfunction
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112
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113 " This function works almost like prevnonblank() but handles &-headers,
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114 " comments and continue instructions like blank lines
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115 function s:KrlPreNoneBlank(lnum) abort
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116
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117 let nPreNoneBlank = prevnonblank(a:lnum)
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118
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119 while nPreNoneBlank > 0 && getline(nPreNoneBlank) =~? '\v^\s*(\&\w\+|;|continue>)'
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120 " Previouse none blank line irrelevant. Look further aback.
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121 let nPreNoneBlank = prevnonblank(nPreNoneBlank - 1)
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122 endwhile
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123
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124 return nPreNoneBlank
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125 endfunction
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126
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127 let &cpo = s:keepcpo
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128 unlet s:keepcpo
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129
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130 " vim:sw=2 sts=2 et
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