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annotate runtime/indent/systemverilog.vim @ 6218:d4cc9f48d5a4 v7.4.444

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updated for version 7.4.444 Problem: Reversed question mark not recognized as punctuation. (Issue 258) Solution: Add the Supplemental Punctuation range.
author Bram Moolenaar <bram@vim.org>
date Mon, 15 Sep 2014 14:25:54 +0200
parents 1dea14d4c738
children 63b0b7b79b25
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
5663
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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: 12-Aug-2013.
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5
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6 " Only load this indent file when no other was loaded.
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7 if exists("b:did_indent")
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8 finish
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9 endif
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10 let b:did_indent = 1
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11
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12 setlocal indentexpr=SystemVerilogIndent()
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13 setlocal indentkeys=!^F,o,O,0),0},=begin,=end,=join,=endcase,=join_any,=join_none
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14 setlocal indentkeys+==endmodule,=endfunction,=endtask,=endspecify
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15 setlocal indentkeys+==endclass,=endpackage,=endsequence,=endclocking
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16 setlocal indentkeys+==endinterface,=endgroup,=endprogram,=endproperty,=endchecker
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17 setlocal indentkeys+==`else,=`endif
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18
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19 " Only define the function once.
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20 if exists("*SystemVerilogIndent")
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21 finish
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22 endif
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23
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24 let s:cpo_save = &cpo
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25 set cpo&vim
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26
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27 function SystemVerilogIndent()
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28
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29 if exists('b:systemverilog_indent_width')
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30 let offset = b:systemverilog_indent_width
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31 else
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32 let offset = &sw
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33 endif
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34 if exists('b:systemverilog_indent_modules')
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35 let indent_modules = offset
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36 else
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37 let indent_modules = 0
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38 endif
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39
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40 " Find a non-blank line above the current line.
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41 let lnum = prevnonblank(v:lnum - 1)
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42
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43 " At the start of the file use zero indent.
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44 if lnum == 0
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45 return 0
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46 endif
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47
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48 let lnum2 = prevnonblank(lnum - 1)
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49 let curr_line = getline(v:lnum)
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50 let last_line = getline(lnum)
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51 let last_line2 = getline(lnum2)
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52 let ind = indent(lnum)
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53 let ind2 = indent(lnum - 1)
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54 let offset_comment1 = 1
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55 " Define the condition of an open statement
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56 " Exclude the match of //, /* or */
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57 let sv_openstat = '\(\<or\>\|\([*/]\)\@<![*(,{><+-/%^&|!=?:]\([*/]\)\@!\)'
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58 " Define the condition when the statement ends with a one-line comment
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59 let sv_comment = '\(//.*\|/\*.*\*/\s*\)'
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60 if exists('b:verilog_indent_verbose')
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61 let vverb_str = 'INDENT VERBOSE:'
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62 let vverb = 1
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63 else
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64 let vverb = 0
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65 endif
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66
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67 " Indent accoding to last line
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68 " End of multiple-line comment
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69 if last_line =~ '\*/\s*$' && last_line !~ '/\*.\{-}\*/'
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70 let ind = ind - offset_comment1
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71 if vverb
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72 echo vverb_str "De-indent after a multiple-line comment."
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73 endif
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74
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75 " Indent after if/else/for/case/always/initial/specify/fork blocks
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76 elseif last_line =~ '`\@<!\<\(if\|else\)\>' ||
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77 \ last_line =~ '^\s*\<\(for\|case\%[[zx]]\|do\|foreach\|randcase\)\>' ||
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78 \ last_line =~ '^\s*\<\(always\|always_comb\|always_ff\|always_latch\)\>' ||
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79 \ last_line =~ '^\s*\<\(initial\|specify\|fork\|final\)\>'
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80 if last_line !~ '\(;\|\<end\>\)\s*' . sv_comment . '*$' ||
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81 \ last_line =~ '\(//\|/\*\).*\(;\|\<end\>\)\s*' . sv_comment . '*$'
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82 let ind = ind + offset
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83 if vverb | echo vverb_str "Indent after a block statement." | endif
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84 endif
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85 " Indent after function/task/class/package/sequence/clocking/
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86 " interface/covergroup/property/checkerprogram blocks
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87 elseif last_line =~ '^\s*\<\(function\|task\|class\|package\)\>' ||
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88 \ last_line =~ '^\s*\<\(sequence\|clocking\|interface\)\>' ||
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89 \ last_line =~ '^\s*\(\w\+\s*:\)\=\s*\<covergroup\>' ||
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90 \ last_line =~ '^\s*\<\(property\|checker\|program\)\>'
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91 if last_line !~ '\<end\>\s*' . sv_comment . '*$' ||
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92 \ last_line =~ '\(//\|/\*\).*\(;\|\<end\>\)\s*' . sv_comment . '*$'
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93 let ind = ind + offset
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94 if vverb
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95 echo vverb_str "Indent after function/task/class block statement."
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96 endif
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97 endif
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98
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99 " Indent after module/function/task/specify/fork blocks
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100 elseif last_line =~ '^\s*\(\<extern\>\s*\)\=\<module\>'
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101 let ind = ind + indent_modules
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102 if vverb && indent_modules
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103 echo vverb_str "Indent after module statement."
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104 endif
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105 if last_line =~ '[(,]\s*' . sv_comment . '*$' &&
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106 \ last_line !~ '\(//\|/\*\).*[(,]\s*' . sv_comment . '*$'
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107 let ind = ind + offset
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108 if vverb
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109 echo vverb_str "Indent after a multiple-line module statement."
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110 endif
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111 endif
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112
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113 " Indent after a 'begin' statement
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114 elseif last_line =~ '\(\<begin\>\)\(\s*:\s*\w\+\)*' . sv_comment . '*$' &&
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115 \ last_line !~ '\(//\|/\*\).*\(\<begin\>\)' &&
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116 \ ( last_line2 !~ sv_openstat . '\s*' . sv_comment . '*$' ||
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117 \ last_line2 =~ '^\s*[^=!]\+\s*:\s*' . sv_comment . '*$' )
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118 let ind = ind + offset
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119 if vverb | echo vverb_str "Indent after begin statement." | endif
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120
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121 " Indent after a '{' or a '('
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122 elseif last_line =~ '[{(]' . sv_comment . '*$' &&
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123 \ last_line !~ '\(//\|/\*\).*[{(]' &&
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124 \ ( last_line2 !~ sv_openstat . '\s*' . sv_comment . '*$' ||
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125 \ last_line2 =~ '^\s*[^=!]\+\s*:\s*' . sv_comment . '*$' )
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126 let ind = ind + offset
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127 if vverb | echo vverb_str "Indent after begin statement." | endif
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128
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129 " De-indent for the end of one-line block
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130 elseif ( last_line !~ '\<begin\>' ||
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131 \ last_line =~ '\(//\|/\*\).*\<begin\>' ) &&
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132 \ last_line2 =~ '\<\(`\@<!if\|`\@<!else\|for\|always\|initial\|do\|foreach\|final\)\>.*' .
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133 \ sv_comment . '*$' &&
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134 \ last_line2 !~ '\(//\|/\*\).*\<\(`\@<!if\|`\@<!else\|for\|always\|initial\|do\|foreach\|final\)\>' &&
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135 \ last_line2 !~ sv_openstat . '\s*' . sv_comment . '*$' &&
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136 \ ( last_line2 !~ '\<begin\>' ||
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137 \ last_line2 =~ '\(//\|/\*\).*\<begin\>' )
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138 let ind = ind - offset
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139 if vverb
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140 echo vverb_str "De-indent after the end of one-line statement."
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141 endif
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142
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143 " Multiple-line statement (including case statement)
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144 " Open statement
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145 " Ident the first open line
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146 elseif last_line =~ sv_openstat . '\s*' . sv_comment . '*$' &&
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147 \ last_line !~ '\(//\|/\*\).*' . sv_openstat . '\s*$' &&
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148 \ last_line2 !~ sv_openstat . '\s*' . sv_comment . '*$'
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149 let ind = ind + offset
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150 if vverb | echo vverb_str "Indent after an open statement." | endif
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151
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152 " Close statement
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153 " De-indent for an optional close parenthesis and a semicolon, and only
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154 " if there exists precedent non-whitespace char
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155 elseif last_line =~ ')*\s*;\s*' . sv_comment . '*$' &&
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156 \ last_line !~ '^\s*)*\s*;\s*' . sv_comment . '*$' &&
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157 \ last_line !~ '\(//\|/\*\).*\S)*\s*;\s*' . sv_comment . '*$' &&
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158 \ ( last_line2 =~ sv_openstat . '\s*' . sv_comment . '*$' &&
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159 \ last_line2 !~ ';\s*//.*$') &&
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160 \ last_line2 !~ '^\s*' . sv_comment . '$'
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161 let ind = ind - offset
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162 if vverb | echo vverb_str "De-indent after a close statement." | endif
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163
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164 " `ifdef and `else
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165 elseif last_line =~ '^\s*`\<\(ifdef\|else\)\>'
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166 let ind = ind + offset
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167 if vverb
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168 echo vverb_str "Indent after a `ifdef or `else statement."
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169 endif
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170
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171 endif
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172
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173 " Re-indent current line
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174
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175 " De-indent on the end of the block
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176 " join/end/endcase/endfunction/endtask/endspecify
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177 if curr_line =~ '^\s*\<\(join\|join_any\|join_none\|\|end\|endcase\|while\)\>' ||
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178 \ curr_line =~ '^\s*\<\(endfunction\|endtask\|endspecify\|endclass\)\>' ||
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179 \ curr_line =~ '^\s*\<\(endpackage\|endsequence\|endclocking\|endinterface\)\>' ||
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180 \ curr_line =~ '^\s*\<\(endgroup\|endproperty\|endchecker\|endprogram\)\>' ||
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181 \ curr_line =~ '^\s*}'
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182 let ind = ind - offset
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183 if vverb | echo vverb_str "De-indent the end of a block." | endif
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184 elseif curr_line =~ '^\s*\<endmodule\>'
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185 let ind = ind - indent_modules
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186 if vverb && indent_modules
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187 echo vverb_str "De-indent the end of a module."
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188 endif
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189
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190 " De-indent on a stand-alone 'begin'
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191 elseif curr_line =~ '^\s*\<begin\>'
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192 if last_line !~ '^\s*\<\(function\|task\|specify\|module\|class\|package\)\>' ||
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193 \ last_line !~ '^\s*\<\(sequence\|clocking\|interface\|covergroup\)\>' ||
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194 \ last_line !~ '^\s*\<\(property\|checker\|program\)\>' &&
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195 \ last_line !~ '^\s*\()*\s*;\|)\+\)\s*' . sv_comment . '*$' &&
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196 \ ( last_line =~
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197 \ '\<\(`\@<!if\|`\@<!else\|for\|case\%[[zx]]\|always\|initial\|do\|foreach\|randcase\|final\)\>' ||
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198 \ last_line =~ ')\s*' . sv_comment . '*$' ||
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199 \ last_line =~ sv_openstat . '\s*' . sv_comment . '*$' )
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200 let ind = ind - offset
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201 if vverb
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202 echo vverb_str "De-indent a stand alone begin statement."
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203 endif
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204 endif
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205
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206 " De-indent after the end of multiple-line statement
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207 elseif curr_line =~ '^\s*)' &&
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208 \ ( last_line =~ sv_openstat . '\s*' . sv_comment . '*$' ||
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209 \ last_line !~ sv_openstat . '\s*' . sv_comment . '*$' &&
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210 \ last_line2 =~ sv_openstat . '\s*' . sv_comment . '*$' )
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211 let ind = ind - offset
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212 if vverb
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213 echo vverb_str "De-indent the end of a multiple statement."
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214 endif
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215
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216 " De-indent `else and `endif
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217 elseif curr_line =~ '^\s*`\<\(else\|endif\)\>'
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218 let ind = ind - offset
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219 if vverb | echo vverb_str "De-indent `else and `endif statement." | endif
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220
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221 endif
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222
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223 " Return the indention
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224 return ind
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225 endfunction
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226
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227 let &cpo = s:cpo_save
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228 unlet s:cpo_save
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229
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230 " vim:sw=2