annotate runtime/indent/ada.vim @ 34217:0f125612fd33 v9.1.0057

patch 9.1.0057: MS-Windows: Key event test still fails Commit: https://github.com/vim/vim/commit/6a02eb073e1c801a5a92837d4b2d44b6a80afddd Author: Christian Brabandt <cb@256bit.org> Date: Thu Jan 25 22:28:37 2024 +0100 patch 9.1.0057: MS-Windows: Key event test still fails Problem: MS-Windows: Key event test still fails Solution: Skip testing CTRL-C, since it causes an Interrupt which causes a test failure (after 9.1.0053) Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Thu, 25 Jan 2024 22:45:02 +0100
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1 "------------------------------------------------------------------------------
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2 " Description: Vim Ada indent file
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3 " Language: Ada (2005)
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4 " $Id: ada.vim 887 2008-07-08 14:29:01Z krischik $
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5 " Copyright: Copyright (C) 2006 Martin Krischik
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6 " Maintainer: Martin Krischik <krischik@users.sourceforge.net>
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7 " Neil Bird <neil@fnxweb.com>
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8 " Ned Okie <nokie@radford.edu>
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9 " $Author: krischik $
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10 " $Date: 2008-07-08 16:29:01 +0200 (Di, 08 Jul 2008) $
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11 " Version: 4.6
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12 " $Revision: 887 $
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13 " $HeadURL: https://gnuada.svn.sourceforge.net/svnroot/gnuada/trunk/tools/vim/indent/ada.vim $
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14 " History: 24.05.2006 MK Unified Headers
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15 " 16.07.2006 MK Ada-Mode as vim-ball
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16 " 15.10.2006 MK Bram's suggestion for runtime integration
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17 " 05.11.2006 MK Bram suggested to save on spaces
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18 " 19.09.2007 NO g: missing before ada#Comment
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19 " 2022 April: b:undo_indent added by Doug Kearns
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20 " Help Page: ft-vim-indent
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21 "------------------------------------------------------------------------------
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22 " ToDo:
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23 " Verify handling of multi-line exprs. and recovery upon the final ';'.
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24 " Correctly find comments given '"' and "" ==> " syntax.
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25 " Combine the two large block-indent functions into one?
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26 "------------------------------------------------------------------------------
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27
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28 " Only load this indent file when no other was loaded.
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29 if exists("b:did_indent") || version < 700
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30 finish
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31 endif
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32
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33 let b:did_indent = 45
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34
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35 setlocal indentexpr=GetAdaIndent()
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36 setlocal indentkeys-=0{,0}
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37 setlocal indentkeys+=0=~then,0=~end,0=~elsif,0=~when,0=~exception,0=~begin,0=~is,0=~record
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38
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39 let b:undo_indent = "setl inde< indk<"
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40
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41 " Only define the functions once.
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42 if exists("*GetAdaIndent")
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43 finish
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44 endif
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45 let s:keepcpo= &cpo
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46 set cpo&vim
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47
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48 if exists("g:ada_with_gnat_project_files")
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49 let s:AdaBlockStart = '^\s*\(if\>\|while\>\|else\>\|elsif\>\|loop\>\|for\>.*\<\(loop\|use\)\>\|declare\>\|begin\>\|type\>.*\<is\>[^;]*$\|\(type\>.*\)\=\<record\>\|procedure\>\|function\>\|accept\>\|do\>\|task\>\|package\>\|project\>\|then\>\|when\>\|is\>\)'
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50 else
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51 let s:AdaBlockStart = '^\s*\(if\>\|while\>\|else\>\|elsif\>\|loop\>\|for\>.*\<\(loop\|use\)\>\|declare\>\|begin\>\|type\>.*\<is\>[^;]*$\|\(type\>.*\)\=\<record\>\|procedure\>\|function\>\|accept\>\|do\>\|task\>\|package\>\|then\>\|when\>\|is\>\)'
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52 endif
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53
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54 " Section: s:MainBlockIndent {{{1
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55 "
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56 " Try to find indent of the block we're in
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57 " prev_indent = the previous line's indent
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58 " prev_lnum = previous line (to start looking on)
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59 " blockstart = expr. that indicates a possible start of this block
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60 " stop_at = if non-null, if a matching line is found, gives up!
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61 " No recursive previous block analysis: simply look for a valid line
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62 " with a lesser or equal indent than we currently (on prev_lnum) have.
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63 " This shouldn't work as well as it appears to with lines that are currently
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64 " nowhere near the correct indent (e.g., start of line)!
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65 " Seems to work OK as it 'starts' with the indent of the /previous/ line.
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66 function s:MainBlockIndent (prev_indent, prev_lnum, blockstart, stop_at)
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67 let lnum = a:prev_lnum
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68 let line = substitute( getline(lnum), g:ada#Comment, '', '' )
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69 while lnum > 1
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70 if a:stop_at != '' && line =~ '^\s*' . a:stop_at && indent(lnum) < a:prev_indent
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71 return a:prev_indent
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72 elseif line =~ '^\s*' . a:blockstart
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73 let ind = indent(lnum)
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74 if ind < a:prev_indent
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75 return ind
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76 endif
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77 endif
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78
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79 let lnum = prevnonblank(lnum - 1)
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80 " Get previous non-blank/non-comment-only line
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81 while 1
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82 let line = substitute( getline(lnum), g:ada#Comment, '', '' )
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83 if line !~ '^\s*$' && line !~ '^\s*#'
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84 break
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85 endif
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86 let lnum = prevnonblank(lnum - 1)
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87 if lnum <= 0
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88 return a:prev_indent
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89 endif
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90 endwhile
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91 endwhile
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92 " Fallback - just move back one
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93 return a:prev_indent - shiftwidth()
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94 endfunction MainBlockIndent
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95
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96 " Section: s:EndBlockIndent {{{1
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97 "
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98 " Try to find indent of the block we're in (and about to complete),
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99 " including handling of nested blocks. Works on the 'end' of a block.
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100 " prev_indent = the previous line's indent
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101 " prev_lnum = previous line (to start looking on)
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102 " blockstart = expr. that indicates a possible start of this block
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103 " blockend = expr. that indicates a possible end of this block
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104 function s:EndBlockIndent( prev_indent, prev_lnum, blockstart, blockend )
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105 let lnum = a:prev_lnum
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106 let line = getline(lnum)
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107 let ends = 0
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108 while lnum > 1
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109 if getline(lnum) =~ '^\s*' . a:blockstart
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110 let ind = indent(lnum)
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111 if ends <= 0
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112 if ind < a:prev_indent
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113 return ind
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114 endif
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115 else
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116 let ends = ends - 1
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117 endif
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118 elseif getline(lnum) =~ '^\s*' . a:blockend
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119 let ends = ends + 1
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120 endif
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121
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122 let lnum = prevnonblank(lnum - 1)
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123 " Get previous non-blank/non-comment-only line
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124 while 1
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125 let line = getline(lnum)
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126 let line = substitute( line, g:ada#Comment, '', '' )
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127 if line !~ '^\s*$'
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128 break
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129 endif
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130 let lnum = prevnonblank(lnum - 1)
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131 if lnum <= 0
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132 return a:prev_indent
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133 endif
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134 endwhile
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135 endwhile
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136 " Fallback - just move back one
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137 return a:prev_indent - shiftwidth()
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138 endfunction EndBlockIndent
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139
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140 " Section: s:StatementIndent {{{1
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141 "
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142 " Return indent of previous statement-start
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143 " (after we've indented due to multi-line statements).
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144 " This time, we start searching on the line *before* the one given (which is
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145 " the end of a statement - we want the previous beginning).
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146 function s:StatementIndent( current_indent, prev_lnum )
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147 let lnum = a:prev_lnum
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148 while lnum > 0
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149 let prev_lnum = lnum
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150 let lnum = prevnonblank(lnum - 1)
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151 " Get previous non-blank/non-comment-only line
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152 while 1
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153 let line = substitute( getline(lnum), g:ada#Comment, '', '' )
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154
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155 if line !~ '^\s*$' && line !~ '^\s*#'
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156 break
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157 endif
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158 let lnum = prevnonblank(lnum - 1)
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159 if lnum <= 0
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160 return a:current_indent
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161 endif
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162 endwhile
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163 " Leave indent alone if our ';' line is part of a ';'-delineated
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164 " aggregate (e.g., procedure args.) or first line after a block start.
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165 if line =~ s:AdaBlockStart || line =~ '(\s*$'
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166 return a:current_indent
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167 endif
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168 if line !~ '[.=(]\s*$'
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169 let ind = indent(prev_lnum)
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170 if ind < a:current_indent
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171 return ind
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172 endif
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173 endif
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174 endwhile
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175 " Fallback - just use current one
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176 return a:current_indent
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177 endfunction StatementIndent
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178
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179
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180 " Section: GetAdaIndent {{{1
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181 "
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182 " Find correct indent of a new line based upon what went before
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183 "
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184 function GetAdaIndent()
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185 " Find a non-blank line above the current line.
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186 let lnum = prevnonblank(v:lnum - 1)
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187 let ind = indent(lnum)
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188 let package_line = 0
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189
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190 " Get previous non-blank/non-comment-only/non-cpp line
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191 while 1
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192 let line = substitute( getline(lnum), g:ada#Comment, '', '' )
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193 if line !~ '^\s*$' && line !~ '^\s*#'
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194 break
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195 endif
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196 let lnum = prevnonblank(lnum - 1)
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197 if lnum <= 0
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198 return ind
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199 endif
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200 endwhile
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201
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202 " Get default indent (from prev. line)
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203 let ind = indent(lnum)
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204 let initind = ind
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205
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206 " Now check what's on the previous line
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207 if line =~ s:AdaBlockStart || line =~ '(\s*$'
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208 " Check for false matches to AdaBlockStart
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209 let false_match = 0
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210 if line =~ '^\s*\(procedure\|function\|package\)\>.*\<is\s*new\>'
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211 " Generic instantiation
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212 let false_match = 1
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213 elseif line =~ ')\s*;\s*$' || line =~ '^\([^(]*([^)]*)\)*[^(]*;\s*$'
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214 " forward declaration
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215 let false_match = 1
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216 endif
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217 " Move indent in
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218 if ! false_match
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219 let ind = ind + shiftwidth()
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220 endif
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221 elseif line =~ '^\s*\(case\|exception\)\>'
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222 " Move indent in twice (next 'when' will move back)
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223 let ind = ind + 2 * shiftwidth()
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224 elseif line =~ '^\s*end\s*record\>'
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225 " Move indent back to tallying 'type' preceding the 'record'.
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226 " Allow indent to be equal to 'end record's.
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227 let ind = s:MainBlockIndent( ind+shiftwidth(), lnum, 'type\>', '' )
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228 elseif line =~ '\(^\s*new\>.*\)\@<!)\s*[;,]\s*$'
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229 " Revert to indent of line that started this parenthesis pair
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230 exe lnum
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231 exe 'normal! $F)%'
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232 if getline('.') =~ '^\s*('
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233 " Dire layout - use previous indent (could check for g:ada#Comment here)
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234 let ind = indent( prevnonblank( line('.')-1 ) )
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235 else
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236 let ind = indent('.')
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237 endif
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238 exe v:lnum
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239 elseif line =~ '[.=(]\s*$'
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240 " A statement continuation - move in one
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241 let ind = ind + shiftwidth()
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242 elseif line =~ '^\s*new\>'
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243 " Multiple line generic instantiation ('package blah is\nnew thingy')
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244 let ind = s:StatementIndent( ind - shiftwidth(), lnum )
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245 elseif line =~ ';\s*$'
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246 " Statement end (but not 'end' ) - try to find current statement-start indent
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247 let ind = s:StatementIndent( ind, lnum )
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248 endif
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249
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250 " Check for potential argument list on next line
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251 let continuation = (line =~ '[A-Za-z0-9_]\s*$')
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252
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253
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254 " Check current line; search for simplistic matching start-of-block
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255 let line = getline(v:lnum)
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256 if line =~ '^\s*#'
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257 " Start of line for ada-pp
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258 let ind = 0
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259 elseif continuation && line =~ '^\s*('
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260 " Don't do this if we've already indented due to the previous line
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261 if ind == initind
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262 let ind = ind + shiftwidth()
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263 endif
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264 elseif line =~ '^\s*\(begin\|is\)\>'
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265 let ind = s:MainBlockIndent( ind, lnum, '\(procedure\|function\|declare\|package\|task\)\>', 'begin\>' )
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266 elseif line =~ '^\s*record\>'
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267 let ind = s:MainBlockIndent( ind, lnum, 'type\>\|for\>.*\<use\>', '' ) + shiftwidth()
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268 elseif line =~ '^\s*\(else\|elsif\)\>'
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269 let ind = s:MainBlockIndent( ind, lnum, 'if\>', '' )
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270 elseif line =~ '^\s*when\>'
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271 " Align 'when' one /in/ from matching block start
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272 let ind = s:MainBlockIndent( ind, lnum, '\(case\|exception\)\>', '' ) + shiftwidth()
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273 elseif line =~ '^\s*end\>\s*\<if\>'
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274 " End of if statements
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275 let ind = s:EndBlockIndent( ind, lnum, 'if\>', 'end\>\s*\<if\>' )
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276 elseif line =~ '^\s*end\>\s*\<loop\>'
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277 " End of loops
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278 let ind = s:EndBlockIndent( ind, lnum, '\(\(while\|for\)\>.*\)\?\<loop\>', 'end\>\s*\<loop\>' )
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279 elseif line =~ '^\s*end\>\s*\<record\>'
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280 " End of records
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281 let ind = s:EndBlockIndent( ind, lnum, '\(type\>.*\)\=\<record\>', 'end\>\s*\<record\>' )
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282 elseif line =~ '^\s*end\>\s*\<procedure\>'
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283 " End of procedures
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284 let ind = s:EndBlockIndent( ind, lnum, 'procedure\>.*\<is\>', 'end\>\s*\<procedure\>' )
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285 elseif line =~ '^\s*end\>\s*\<case\>'
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286 " End of case statement
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287 let ind = s:EndBlockIndent( ind, lnum, 'case\>.*\<is\>', 'end\>\s*\<case\>' )
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288 elseif line =~ '^\s*end\>'
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289 " General case for end
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290 let ind = s:MainBlockIndent( ind, lnum, '\(if\|while\|for\|loop\|accept\|begin\|record\|case\|exception\|package\)\>', '' )
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291 elseif line =~ '^\s*exception\>'
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292 let ind = s:MainBlockIndent( ind, lnum, 'begin\>', '' )
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293 elseif line =~ '^\s*then\>'
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294 let ind = s:MainBlockIndent( ind, lnum, 'if\>', '' )
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295 endif
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296
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297 return ind
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298 endfunction GetAdaIndent
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299
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300 let &cpo = s:keepcpo
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301 unlet s:keepcpo
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302
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303 finish " 1}}}
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304
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305 "------------------------------------------------------------------------------
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306 " Copyright (C) 2006 Martin Krischik
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307 "
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308 " Vim is Charityware - see ":help license" or uganda.txt for licence details.
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309 "------------------------------------------------------------------------------
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310 " vim: textwidth=78 wrap tabstop=8 shiftwidth=3 softtabstop=3 noexpandtab
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311 " vim: foldmethod=marker