annotate runtime/indent/ada.vim @ 17547:1b8463f97365 v8.1.1771

patch 8.1.1771: options test fails on MS-Windows commit https://github.com/vim/vim/commit/d4404b4391a0cd3ab197e09bee7828c88882f6b2 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 28 18:38:09 2019 +0200 patch 8.1.1771: options test fails on MS-Windows Problem: Options test fails on MS-Windows. Solution: Add correct and incorrect values for 'completeslash'.
author Bram Moolenaar <Bram@vim.org>
date Sun, 28 Jul 2019 18:45:04 +0200
parents 63b0b7b79b25
children 11b656e74444
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 " Help Page: ft-vim-indent
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20 "------------------------------------------------------------------------------
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21 " ToDo:
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22 " Verify handling of multi-line exprs. and recovery upon the final ';'.
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23 " Correctly find comments given '"' and "" ==> " syntax.
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24 " Combine the two large block-indent functions into one?
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25 "------------------------------------------------------------------------------
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26
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27 " Only load this indent file when no other was loaded.
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28 if exists("b:did_indent") || version < 700
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29 finish
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30 endif
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31
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32 let b:did_indent = 45
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33
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34 setlocal indentexpr=GetAdaIndent()
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35 setlocal indentkeys-=0{,0}
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36 setlocal indentkeys+=0=~then,0=~end,0=~elsif,0=~when,0=~exception,0=~begin,0=~is,0=~record
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37
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38 " Only define the functions once.
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39 if exists("*GetAdaIndent")
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40 finish
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41 endif
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42 let s:keepcpo= &cpo
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43 set cpo&vim
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44
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45 if exists("g:ada_with_gnat_project_files")
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46 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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47 else
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48 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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49 endif
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50
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51 " Section: s:MainBlockIndent {{{1
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52 "
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53 " Try to find indent of the block we're in
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54 " prev_indent = the previous line's indent
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55 " prev_lnum = previous line (to start looking on)
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56 " blockstart = expr. that indicates a possible start of this block
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57 " stop_at = if non-null, if a matching line is found, gives up!
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58 " No recursive previous block analysis: simply look for a valid line
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59 " with a lesser or equal indent than we currently (on prev_lnum) have.
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60 " This shouldn't work as well as it appears to with lines that are currently
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61 " nowhere near the correct indent (e.g., start of line)!
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62 " Seems to work OK as it 'starts' with the indent of the /previous/ line.
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63 function s:MainBlockIndent (prev_indent, prev_lnum, blockstart, stop_at)
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64 let lnum = a:prev_lnum
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65 let line = substitute( getline(lnum), g:ada#Comment, '', '' )
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66 while lnum > 1
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67 if a:stop_at != '' && line =~ '^\s*' . a:stop_at && indent(lnum) < a:prev_indent
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68 return a:prev_indent
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69 elseif line =~ '^\s*' . a:blockstart
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70 let ind = indent(lnum)
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71 if ind < a:prev_indent
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72 return ind
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73 endif
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74 endif
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75
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76 let lnum = prevnonblank(lnum - 1)
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77 " Get previous non-blank/non-comment-only line
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78 while 1
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79 let line = substitute( getline(lnum), g:ada#Comment, '', '' )
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80 if line !~ '^\s*$' && line !~ '^\s*#'
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81 break
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82 endif
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83 let lnum = prevnonblank(lnum - 1)
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84 if lnum <= 0
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85 return a:prev_indent
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86 endif
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87 endwhile
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88 endwhile
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89 " Fallback - just move back one
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90 return a:prev_indent - shiftwidth()
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91 endfunction MainBlockIndent
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92
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93 " Section: s:EndBlockIndent {{{1
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94 "
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95 " Try to find indent of the block we're in (and about to complete),
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96 " including handling of nested blocks. Works on the 'end' of a block.
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97 " prev_indent = the previous line's indent
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98 " prev_lnum = previous line (to start looking on)
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99 " blockstart = expr. that indicates a possible start of this block
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100 " blockend = expr. that indicates a possible end of this block
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101 function s:EndBlockIndent( prev_indent, prev_lnum, blockstart, blockend )
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102 let lnum = a:prev_lnum
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103 let line = getline(lnum)
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104 let ends = 0
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105 while lnum > 1
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106 if getline(lnum) =~ '^\s*' . a:blockstart
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107 let ind = indent(lnum)
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108 if ends <= 0
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109 if ind < a:prev_indent
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110 return ind
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111 endif
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112 else
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113 let ends = ends - 1
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114 endif
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115 elseif getline(lnum) =~ '^\s*' . a:blockend
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116 let ends = ends + 1
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117 endif
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118
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119 let lnum = prevnonblank(lnum - 1)
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120 " Get previous non-blank/non-comment-only line
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121 while 1
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122 let line = getline(lnum)
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123 let line = substitute( line, g:ada#Comment, '', '' )
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124 if line !~ '^\s*$'
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125 break
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126 endif
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127 let lnum = prevnonblank(lnum - 1)
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128 if lnum <= 0
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129 return a:prev_indent
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130 endif
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131 endwhile
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132 endwhile
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133 " Fallback - just move back one
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134 return a:prev_indent - shiftwidth()
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135 endfunction EndBlockIndent
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136
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137 " Section: s:StatementIndent {{{1
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138 "
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139 " Return indent of previous statement-start
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140 " (after we've indented due to multi-line statements).
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141 " This time, we start searching on the line *before* the one given (which is
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142 " the end of a statement - we want the previous beginning).
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143 function s:StatementIndent( current_indent, prev_lnum )
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144 let lnum = a:prev_lnum
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145 while lnum > 0
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146 let prev_lnum = lnum
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147 let lnum = prevnonblank(lnum - 1)
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148 " Get previous non-blank/non-comment-only line
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149 while 1
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150 let line = substitute( getline(lnum), g:ada#Comment, '', '' )
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151
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152 if line !~ '^\s*$' && line !~ '^\s*#'
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153 break
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154 endif
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155 let lnum = prevnonblank(lnum - 1)
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156 if lnum <= 0
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157 return a:current_indent
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158 endif
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159 endwhile
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160 " Leave indent alone if our ';' line is part of a ';'-delineated
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161 " aggregate (e.g., procedure args.) or first line after a block start.
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162 if line =~ s:AdaBlockStart || line =~ '(\s*$'
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163 return a:current_indent
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164 endif
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165 if line !~ '[.=(]\s*$'
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166 let ind = indent(prev_lnum)
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167 if ind < a:current_indent
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168 return ind
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169 endif
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170 endif
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171 endwhile
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172 " Fallback - just use current one
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173 return a:current_indent
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174 endfunction StatementIndent
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175
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176
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177 " Section: GetAdaIndent {{{1
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178 "
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179 " Find correct indent of a new line based upon what went before
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180 "
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181 function GetAdaIndent()
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182 " Find a non-blank line above the current line.
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183 let lnum = prevnonblank(v:lnum - 1)
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184 let ind = indent(lnum)
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185 let package_line = 0
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186
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187 " Get previous non-blank/non-comment-only/non-cpp line
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188 while 1
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189 let line = substitute( getline(lnum), g:ada#Comment, '', '' )
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190 if line !~ '^\s*$' && line !~ '^\s*#'
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191 break
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192 endif
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193 let lnum = prevnonblank(lnum - 1)
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194 if lnum <= 0
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195 return ind
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196 endif
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197 endwhile
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198
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199 " Get default indent (from prev. line)
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200 let ind = indent(lnum)
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201 let initind = ind
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202
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203 " Now check what's on the previous line
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204 if line =~ s:AdaBlockStart || line =~ '(\s*$'
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205 " Check for false matches to AdaBlockStart
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206 let false_match = 0
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207 if line =~ '^\s*\(procedure\|function\|package\)\>.*\<is\s*new\>'
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208 " Generic instantiation
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209 let false_match = 1
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210 elseif line =~ ')\s*;\s*$' || line =~ '^\([^(]*([^)]*)\)*[^(]*;\s*$'
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211 " forward declaration
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212 let false_match = 1
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213 endif
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214 " Move indent in
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215 if ! false_match
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216 let ind = ind + shiftwidth()
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217 endif
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218 elseif line =~ '^\s*\(case\|exception\)\>'
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219 " Move indent in twice (next 'when' will move back)
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220 let ind = ind + 2 * shiftwidth()
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221 elseif line =~ '^\s*end\s*record\>'
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222 " Move indent back to tallying 'type' preceeding the 'record'.
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223 " Allow indent to be equal to 'end record's.
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224 let ind = s:MainBlockIndent( ind+shiftwidth(), lnum, 'type\>', '' )
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225 elseif line =~ '\(^\s*new\>.*\)\@<!)\s*[;,]\s*$'
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226 " Revert to indent of line that started this parenthesis pair
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227 exe lnum
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228 exe 'normal! $F)%'
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229 if getline('.') =~ '^\s*('
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230 " Dire layout - use previous indent (could check for g:ada#Comment here)
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231 let ind = indent( prevnonblank( line('.')-1 ) )
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232 else
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233 let ind = indent('.')
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234 endif
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235 exe v:lnum
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236 elseif line =~ '[.=(]\s*$'
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237 " A statement continuation - move in one
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238 let ind = ind + shiftwidth()
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239 elseif line =~ '^\s*new\>'
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240 " Multiple line generic instantiation ('package blah is\nnew thingy')
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241 let ind = s:StatementIndent( ind - shiftwidth(), lnum )
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242 elseif line =~ ';\s*$'
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243 " Statement end (but not 'end' ) - try to find current statement-start indent
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244 let ind = s:StatementIndent( ind, lnum )
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245 endif
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246
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247 " Check for potential argument list on next line
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248 let continuation = (line =~ '[A-Za-z0-9_]\s*$')
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249
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250
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251 " Check current line; search for simplistic matching start-of-block
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252 let line = getline(v:lnum)
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253 if line =~ '^\s*#'
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254 " Start of line for ada-pp
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255 let ind = 0
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256 elseif continuation && line =~ '^\s*('
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257 " Don't do this if we've already indented due to the previous line
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258 if ind == initind
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259 let ind = ind + shiftwidth()
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260 endif
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261 elseif line =~ '^\s*\(begin\|is\)\>'
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262 let ind = s:MainBlockIndent( ind, lnum, '\(procedure\|function\|declare\|package\|task\)\>', 'begin\>' )
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263 elseif line =~ '^\s*record\>'
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264 let ind = s:MainBlockIndent( ind, lnum, 'type\>\|for\>.*\<use\>', '' ) + shiftwidth()
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265 elseif line =~ '^\s*\(else\|elsif\)\>'
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266 let ind = s:MainBlockIndent( ind, lnum, 'if\>', '' )
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267 elseif line =~ '^\s*when\>'
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268 " Align 'when' one /in/ from matching block start
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269 let ind = s:MainBlockIndent( ind, lnum, '\(case\|exception\)\>', '' ) + shiftwidth()
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270 elseif line =~ '^\s*end\>\s*\<if\>'
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271 " End of if statements
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272 let ind = s:EndBlockIndent( ind, lnum, 'if\>', 'end\>\s*\<if\>' )
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273 elseif line =~ '^\s*end\>\s*\<loop\>'
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274 " End of loops
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275 let ind = s:EndBlockIndent( ind, lnum, '\(\(while\|for\)\>.*\)\?\<loop\>', 'end\>\s*\<loop\>' )
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276 elseif line =~ '^\s*end\>\s*\<record\>'
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277 " End of records
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278 let ind = s:EndBlockIndent( ind, lnum, '\(type\>.*\)\=\<record\>', 'end\>\s*\<record\>' )
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279 elseif line =~ '^\s*end\>\s*\<procedure\>'
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280 " End of procedures
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281 let ind = s:EndBlockIndent( ind, lnum, 'procedure\>.*\<is\>', 'end\>\s*\<procedure\>' )
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282 elseif line =~ '^\s*end\>\s*\<case\>'
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283 " End of case statement
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284 let ind = s:EndBlockIndent( ind, lnum, 'case\>.*\<is\>', 'end\>\s*\<case\>' )
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285 elseif line =~ '^\s*end\>'
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286 " General case for end
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287 let ind = s:MainBlockIndent( ind, lnum, '\(if\|while\|for\|loop\|accept\|begin\|record\|case\|exception\|package\)\>', '' )
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288 elseif line =~ '^\s*exception\>'
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289 let ind = s:MainBlockIndent( ind, lnum, 'begin\>', '' )
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290 elseif line =~ '^\s*then\>'
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291 let ind = s:MainBlockIndent( ind, lnum, 'if\>', '' )
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292 endif
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293
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294 return ind
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295 endfunction GetAdaIndent
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296
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297 let &cpo = s:keepcpo
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298 unlet s:keepcpo
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299
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300 finish " 1}}}
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301
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302 "------------------------------------------------------------------------------
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303 " Copyright (C) 2006 Martin Krischik
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304 "
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305 " Vim is Charityware - see ":help license" or uganda.txt for licence details.
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306 "------------------------------------------------------------------------------
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307 " vim: textwidth=78 wrap tabstop=8 shiftwidth=3 softtabstop=3 noexpandtab
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308 " vim: foldmethod=marker