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annotate runtime/indent/systemverilog.vim @ 33132:811555b5ab8b v9.0.1848

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patch 9.0.1848: [security] buffer-overflow in vim_regsub_both() Commit: https://github.com/vim/vim/commit/ced2c7394aafdc90fb7845e09b3a3fee23d48cb1 Author: Christian Brabandt <cb@256bit.org> Date: Sat Sep 2 21:15:52 2023 +0200 patch 9.0.1848: [security] buffer-overflow in vim_regsub_both() Problem: buffer-overflow in vim_regsub_both() Solution: Check remaining space Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Sat, 02 Sep 2023 21:45:03 +0200
parents 2198955f9e27
children d6dde6229b36
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 " Vim indent file
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2 " Language: SystemVerilog
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3 " Maintainer: kocha <kocha.lsifrontend@gmail.com>
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4 " Last Change: 05-Feb-2017 by Bilal Wasim
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5 " 03-Aug-2022 Improved indent
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6
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7 " Only load this indent file when no other was loaded.
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8 if exists("b:did_indent")
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9 finish
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10 endif
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11 let b:did_indent = 1
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12
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13 setlocal indentexpr=SystemVerilogIndent()
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14 setlocal indentkeys=!^F,o,O,0),0},=begin,=end,=join,=endcase,=join_any,=join_none
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15 setlocal indentkeys+==endmodule,=endfunction,=endtask,=endspecify
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16 setlocal indentkeys+==endclass,=endpackage,=endsequence,=endclocking
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17 setlocal indentkeys+==endinterface,=endgroup,=endprogram,=endproperty,=endchecker
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18 setlocal indentkeys+==`else,=`elsif,=`endif
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19
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20 let b:undo_indent = "setl inde< indk<"
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21
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22 " Only define the function once.
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23 if exists("*SystemVerilogIndent")
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24 finish
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25 endif
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26
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27 let s:cpo_save = &cpo
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28 set cpo&vim
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29
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30 let s:multiple_comment = 0
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31 let s:open_statement = 0
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32
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33 function SystemVerilogIndent()
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34
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35 if exists('b:systemverilog_indent_width')
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36 let offset = b:systemverilog_indent_width
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37 else
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38 let offset = shiftwidth()
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39 endif
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40 if exists('b:systemverilog_indent_modules')
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41 let indent_modules = offset
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42 else
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43 let indent_modules = 0
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44 endif
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45
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46 if exists('b:systemverilog_indent_ifdef_off')
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47 let indent_ifdef = 0
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48 else
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49 let indent_ifdef = 1
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50 endif
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51
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52 " Find a non-blank line above the current line.
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53 let lnum = prevnonblank(v:lnum - 1)
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54
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55 " At the start of the file use zero indent.
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56 if lnum == 0
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57 return 0
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58 endif
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59
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60 let lnum2 = prevnonblank(lnum - 1)
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61 let curr_line = getline(v:lnum)
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62 let last_line = getline(lnum)
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63 let last_line2 = getline(lnum2)
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64 let ind = indent(lnum)
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65 let ind2 = indent(lnum - 1)
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66 " Define the condition of an open statement
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67 " Exclude the match of //, /* or */
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68 let sv_openstat = '\(\<or\>\|\([*/]\)\@<![*(,{><+-/%^&|!=?:]\([*/]\)\@!\)'
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69 " Define the condition when the statement ends with a one-line comment
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70 let sv_comment = '\(//.*\|/\*.*\*/\s*\)'
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71 if exists('b:systemverilog_indent_verbose')
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72 let vverb_str = 'INDENT VERBOSE: '. v:lnum .":"
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73 let vverb = 1
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74 else
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75 let vverb = 0
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76 endif
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77
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78 " Multiple-line comment count
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79 if curr_line =~ '^\s*/\*' && curr_line !~ '/\*.\{-}\*/'
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80 let s:multiple_comment += 1
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81 if vverb | echom vverb_str "Start of multiple-line commnt" | endif
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82 elseif curr_line =~ '\*/\s*$' && curr_line !~ '/\*.\{-}\*/'
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83 let s:multiple_comment -= 1
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84 if vverb | echom vverb_str "End of multiple-line commnt" | endif
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85 return ind
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86 endif
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87 " Maintain indentation during commenting.
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88 if s:multiple_comment > 0
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89 return ind
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90 endif
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91
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92 " Indent after if/else/for/case/always/initial/specify/fork blocks
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93 if last_line =~ '^\s*\(end\)\=\s*`\@<!\<\(if\|else\)\>' ||
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94 \ last_line =~ '^\s*\<\(for\|while\|repeat\|case\%[[zx]]\|do\|foreach\|forever\|randcase\)\>' ||
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95 \ last_line =~ '^\s*\<\(always\|always_comb\|always_ff\|always_latch\)\>' ||
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96 \ last_line =~ '^\s*\<\(initial\|specify\|fork\|final\)\>'
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97 if last_line !~ '\(;\|\<end\>\|\*/\)\s*' . sv_comment . '*$' ||
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98 \ last_line =~ '\(//\|/\*\).*\(;\|\<end\>\)\s*' . sv_comment . '*$'
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99 let ind = ind + offset
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100 if vverb | echom vverb_str "Indent after a block statement." | endif
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101 endif
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102 " Indent after function/task/class/package/sequence/clocking/
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103 " interface/covergroup/property/checkerprogram blocks
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104 elseif last_line =~ '^\s*\<\(function\|task\|class\|package\)\>' ||
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105 \ last_line =~ '^\s*\<\(sequence\|clocking\|interface\)\>' ||
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106 \ last_line =~ '^\s*\(\w\+\s*:\)\=\s*\<covergroup\>' ||
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107 \ last_line =~ '^\s*\<\(property\|checker\|program\)\>' ||
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108 \ ( last_line =~ '^\s*\<virtual\>' && last_line =~ '\<\(function\|task\|class\|interface\)\>' ) ||
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109 \ ( last_line =~ '^\s*\<pure\>' && last_line =~ '\<virtual\>' && last_line =~ '\<\(function\|task\)\>' )
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110 if last_line !~ '\<end\>\s*' . sv_comment . '*$' ||
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111 \ last_line =~ '\(//\|/\*\).*\(;\|\<end\>\)\s*' . sv_comment . '*$'
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112 let ind = ind + offset
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113 if vverb
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114 echom vverb_str "Indent after function/task/class block statement."
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115 endif
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116 endif
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117
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118 " Indent after module/function/task/specify/fork blocks
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119 elseif last_line =~ '^\s*\(\<extern\>\s*\)\=\<module\>'
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120 let ind = ind + indent_modules
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121 if vverb && indent_modules
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122 echom vverb_str "Indent after module statement."
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123 endif
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124 if last_line =~ '[(,]\s*' . sv_comment . '*$' &&
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125 \ last_line !~ '\(//\|/\*\).*[(,]\s*' . sv_comment . '*$'
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126 let ind = ind + offset
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127 if vverb
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128 echom vverb_str "Indent after a multiple-line module statement."
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129 endif
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130 endif
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131
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132 " Indent after a 'begin' statement
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133 elseif last_line =~ '\(\<begin\>\)\(\s*:\s*\w\+\)*' . sv_comment . '*$' &&
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134 \ last_line !~ '\(//\|/\*\).*\(\<begin\>\)' &&
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135 \ ( last_line2 !~ sv_openstat . '\s*' . sv_comment . '*$' ||
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136 \ last_line2 =~ '^\s*[^=!]\+\s*:\s*' . sv_comment . '*$' )
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137 let ind = ind + offset
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138 if vverb | echom vverb_str "Indent after begin statement." | endif
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139
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140 " Indent after a '{' or a '('
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141 elseif last_line =~ '[{(]' . sv_comment . '*$' &&
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142 \ last_line !~ '\(//\|/\*\).*[{(]' &&
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143 \ ( last_line2 !~ sv_openstat . '\s*' . sv_comment . '*$' ||
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144 \ last_line2 =~ '^\s*[^=!]\+\s*:\s*' . sv_comment . '*$' )
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145 let ind = ind + offset
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146 if vverb | echom vverb_str "Indent after begin statement." | endif
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147
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148 " Ignore de-indent for the end of one-line block
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149 elseif ( last_line !~ '\<begin\>' ||
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150 \ last_line =~ '\(//\|/\*\).*\<begin\>' ) &&
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151 \ last_line2 =~ '\<\(`\@<!if\|`\@<!else\|for\|always\|initial\|do\|foreach\|forever\|final\)\>.*' .
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152 \ sv_comment . '*$' &&
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153 \ last_line2 !~ '\(//\|/\*\).*\<\(`\@<!if\|`\@<!else\|for\|always\|initial\|do\|foreach\|forever\|final\)\>' &&
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154 \ last_line2 !~ sv_openstat . '\s*' . sv_comment . '*$' &&
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155 \ ( last_line2 !~ '\<begin\>' ||
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156 \ last_line2 =~ '\(//\|/\*\).*\<begin\>' ) &&
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157 \ last_line2 =~ ')*\s*;\s*' . sv_comment . '*$'
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158 if vverb
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159 echom vverb_str "Ignore de-indent after the end of one-line statement."
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160 endif
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161
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162 " De-indent for the end of one-line block
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163 elseif ( last_line !~ '\<begin\>' ||
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164 \ last_line =~ '\(//\|/\*\).*\<begin\>' ) &&
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165 \ last_line2 =~ '\<\(`\@<!if\|`\@<!else\|for\|always\|initial\|do\|foreach\|forever\|final\)\>.*' .
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166 \ sv_comment . '*$' &&
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167 \ last_line2 !~ '\(//\|/\*\).*\<\(`\@<!if\|`\@<!else\|for\|always\|initial\|do\|foreach\|forever\|final\)\>' &&
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168 \ last_line2 !~ sv_openstat . '\s*' . sv_comment . '*$' &&
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169 \ last_line2 !~ '\(;\|\<end\>\|\*/\)\s*' . sv_comment . '*$' &&
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170 \ ( last_line2 !~ '\<begin\>' ||
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171 \ last_line2 =~ '\(//\|/\*\).*\<begin\>' )
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172 let ind = ind - offset
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173 if vverb
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174 echom vverb_str "De-indent after the end of one-line statement."
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175 endif
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176
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177 " Multiple-line statement (including case statement)
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178 " Open statement
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179 " Ident the first open line
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180 elseif last_line =~ sv_openstat . '\s*' . sv_comment . '*$' &&
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181 \ last_line !~ '\(//\|/\*\).*' . sv_openstat . '\s*$' &&
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182 \ last_line2 !~ sv_openstat . '\s*' . sv_comment . '*$'
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183 let ind = ind + offset
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184 let s:open_statement = 1
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185 if vverb | echom vverb_str "Indent after an open statement." | endif
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186
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187 " `ifdef or `ifndef or `elsif or `else
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188 elseif last_line =~ '^\s*`\<\(ifn\?def\|elsif\|else\)\>' && indent_ifdef
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189 let ind = ind + offset
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190 if vverb
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191 echom vverb_str "Indent after a `ifdef or `ifndef or `elsif or `else statement."
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192 endif
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193
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194 endif
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195
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196 " Re-indent current line
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197
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198 " De-indent on the end of the block
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199 " join/end/endcase/endfunction/endtask/endspecify
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200 if curr_line =~ '^\s*\<\(join\|join_any\|join_none\|\|end\|endcase\)\>' ||
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201 \ curr_line =~ '^\s*\<\(endfunction\|endtask\|endspecify\|endclass\)\>' ||
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202 \ curr_line =~ '^\s*\<\(endpackage\|endsequence\|endclocking\|endinterface\)\>' ||
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203 \ curr_line =~ '^\s*\<\(endgroup\|endproperty\|endchecker\|endprogram\)\>'
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204 let ind = ind - offset
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205 if vverb | echom vverb_str "De-indent the end of a block." | endif
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206 if s:open_statement == 1
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207 let ind = ind - offset
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208 let s:open_statement = 0
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209 if vverb | echom vverb_str "De-indent the close statement." | endif
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210 endif
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211 elseif curr_line =~ '^\s*\<endmodule\>'
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212 let ind = ind - indent_modules
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213 if vverb && indent_modules
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214 echom vverb_str "De-indent the end of a module."
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215 endif
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216
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217 " De-indent on a stand-alone 'begin'
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218 elseif curr_line =~ '^\s*\<begin\>'
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219 if last_line !~ '^\s*\<\(function\|task\|specify\|module\|class\|package\)\>' ||
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220 \ last_line !~ '^\s*\<\(sequence\|clocking\|interface\|covergroup\)\>' ||
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221 \ last_line !~ '^\s*\<\(property\|checker\|program\)\>' &&
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222 \ last_line !~ '^\s*\()*\s*;\|)\+\)\s*' . sv_comment . '*$' &&
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223 \ ( last_line =~
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224 \ '\<\(`\@<!if\|`\@<!else\|for\|case\%[[zx]]\|always\|initial\|do\|foreach\|forever\|randcase\|final\)\>' ||
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225 \ last_line =~ ')\s*' . sv_comment . '*$' ||
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226 \ last_line =~ sv_openstat . '\s*' . sv_comment . '*$' )
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227 let ind = ind - offset
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228 if vverb
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229 echom vverb_str "De-indent a stand alone begin statement."
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230 endif
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231 if s:open_statement == 1
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232 let ind = ind - offset
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233 let s:open_statement = 0
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234 if vverb | echom vverb_str "De-indent the close statement." | endif
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235 endif
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236 endif
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237
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238 " " Close statement
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239 " " De-indent for an optional close parenthesis and a semicolon, and only
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240 " " if there exists precedent non-whitespace char
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241 " elseif last_line =~ ')*\s*;\s*' . sv_comment . '*$' &&
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242 " \ last_line !~ '^\s*)*\s*;\s*' . sv_comment . '*$' &&
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243 " \ last_line !~ '\(//\|/\*\).*\S)*\s*;\s*' . sv_comment . '*$' &&
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244 " \ ( last_line2 =~ sv_openstat . '\s*' . sv_comment . '*$' &&
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245 " \ last_line2 !~ ';\s*//.*$') &&
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246 " \ last_line2 !~ '^\s*' . sv_comment . '$'
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247 " let ind = ind - offset
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248 " if vverb | echom vverb_str "De-indent after a close statement." | endif
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249
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250 " " De-indent after the end of multiple-line statement
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251 " elseif curr_line =~ '^\s*)' &&
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252 " \ ( last_line =~ sv_openstat . '\s*' . sv_comment . '*$' ||
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253 " \ last_line !~ sv_openstat . '\s*' . sv_comment . '*$' &&
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254 " \ last_line2 =~ sv_openstat . '\s*' . sv_comment . '*$' )
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255 " let ind = ind - offset
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256 " if vverb
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257 " echom vverb_str "De-indent the end of a multiple statement."
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258 " endif
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259
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260 " De-indent `elsif or `else or `endif
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261 elseif curr_line =~ '^\s*`\<\(elsif\|else\|endif\)\>' && indent_ifdef
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262 let ind = ind - offset
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263 if vverb | echom vverb_str "De-indent `elsif or `else or `endif statement." | endif
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264 if b:systemverilog_open_statement == 1
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265 let ind = ind - offset
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266 let b:systemverilog_open_statement = 0
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267 if vverb | echom vverb_str "De-indent the open statement." | endif
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268 endif
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269 endif
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270
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271 " Return the indentation
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272 return ind
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273 endfunction
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274
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275 let &cpo = s:cpo_save
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276 unlet s:cpo_save
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277
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278 " vim:sw=2
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279