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  5. <title>unifdefall.sh</title>
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  19. <h1 style="margin:8px;" id="f1">unifdefall.sh&nbsp;&nbsp;&nbsp;<span style="font-weight: normal; font-size: 0.5em;">[<a href="?txt">plain text</a>]</span></h1>
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  20. <hr/>
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  21. <div></div>
    22. 

  22. <pre>
    23. 

  23. <span class="enscript-reference">#!/bin/sh
    24. 

  24. </span><span class="enscript-comment">#
    25. 

  25. </span><span class="enscript-comment"># unifdefall: remove all the #if's from a source file
    26. 

  26. </span><span class="enscript-comment">#
    27. 

  27. </span><span class="enscript-comment"># Copyright (c) 2002 - 2010 Tony Finch &lt;<a href="mailto:dot@dotat.at">dot@dotat.at</a>&gt;
    28. 

  28. </span><span class="enscript-comment"># Copyright (c) 2009 - 2010 Jonathan Nieder &lt;<a href="mailto:jrnieder@gmail.com">jrnieder@gmail.com</a>&gt;
    29. 

  29. </span><span class="enscript-comment">#
    30. 

  30. </span><span class="enscript-comment"># Redistribution and use in source and binary forms, with or without
    31. 

  31. </span><span class="enscript-comment"># modification, are permitted provided that the following conditions
    32. 

  32. </span><span class="enscript-comment"># are met:
    33. 

  33. </span><span class="enscript-comment"># 1. Redistributions of source code must retain the above copyright
    34. 

  34. </span><span class="enscript-comment">#    notice, this list of conditions and the following disclaimer.
    35. 

  35. </span><span class="enscript-comment"># 2. Redistributions in binary form must reproduce the above copyright
    36. 

  36. </span><span class="enscript-comment">#    notice, this list of conditions and the following disclaimer in the
    37. 

  37. </span><span class="enscript-comment">#    documentation and/or other materials provided with the distribution.
    38. 

  38. </span><span class="enscript-comment">#
    39. 

  39. </span><span class="enscript-comment"># THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
    40. 

  40. </span><span class="enscript-comment"># ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    41. 

  41. </span><span class="enscript-comment"># IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    42. 

  42. </span><span class="enscript-comment"># ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
    43. 

  43. </span><span class="enscript-comment"># FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    44. 

  44. </span><span class="enscript-comment"># DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    45. 

  45. </span><span class="enscript-comment"># OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    46. 

  46. </span><span class="enscript-comment"># HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    47. 

  47. </span><span class="enscript-comment"># LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    48. 

  48. </span><span class="enscript-comment"># OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    49. 

  49. </span><span class="enscript-comment"># SUCH DAMAGE.
    50. 

  50. </span><span class="enscript-comment">#
    51. 

  51. </span><span class="enscript-comment"># $FreeBSD: src/usr.bin/unifdef/unifdefall.sh,v 1.7 2010/03/12 17:55:29 fanf Exp $
    52. 

  52. </span>
    53. 

  53. <span class="enscript-keyword">set</span> -e
    54. 

  54. 

  55. unifdef=<span class="enscript-string">&quot;$(dirname &quot;</span>$0<span class="enscript-string">&quot;)/unifdef&quot;</span>
    56. 

  56. <span class="enscript-keyword">if</span> [ ! -e <span class="enscript-string">&quot;$unifdef&quot;</span> ]
    57. 

  57. <span class="enscript-keyword">then</span>
    58. 

  58. 	unifdef=unifdef
    59. 

  59. <span class="enscript-keyword">fi</span>
    60. 

  60. 

  61. <span class="enscript-keyword">case</span> <span class="enscript-string">&quot;$@&quot;</span> <span class="enscript-keyword">in</span>
    62. 

  62. <span class="enscript-string">&quot;-d &quot;</span>*)	<span class="enscript-keyword">echo</span> DEBUGGING 1&gt;&amp;2
    63. 

  63. 	debug=-d
    64. 

  64. 	<span class="enscript-keyword">shift</span>
    65. 

  65. <span class="enscript-keyword">esac</span>
    66. 

  66. 

  67. basename=$(basename <span class="enscript-string">&quot;$0&quot;</span>)
    68. 

  68. tmp=$(mktemp -d <span class="enscript-string">&quot;${TMPDIR:-/tmp}/$basename.XXXXXXXXXX&quot;</span>) || <span class="enscript-keyword">exit</span> 2
    69. 

  69. <span class="enscript-keyword">trap</span> 'rm -r <span class="enscript-string">&quot;$tmp&quot;</span> || <span class="enscript-keyword">exit</span> 2' EXIT
    70. 

  70. 

  71. <span class="enscript-keyword">export</span> LC_ALL=C
    72. 

  72. 

  73. <span class="enscript-comment"># list of all controlling macros
    74. 

  74. </span><span class="enscript-string">&quot;$unifdef&quot;</span> $debug -s <span class="enscript-string">&quot;$@&quot;</span> | sort | uniq &gt;<span class="enscript-string">&quot;$tmp/ctrl&quot;</span>
    75. 

  75. <span class="enscript-comment"># list of all macro definitions
    76. 

  76. </span>cpp -dM <span class="enscript-string">&quot;$@&quot;</span> | sort | sed 's/^<span class="enscript-comment">#define //' &gt;&quot;$tmp/hashdefs&quot;
    77. 

  77. </span><span class="enscript-comment"># list of defined macro names
    78. 

  78. </span>sed 's/[^A-Za-z0-9_].*$//' &lt;<span class="enscript-string">&quot;$tmp/hashdefs&quot;</span> &gt;<span class="enscript-string">&quot;$tmp/alldef&quot;</span>
    79. 

  79. <span class="enscript-comment"># list of undefined and defined controlling macros
    80. 

  80. </span>comm -23 <span class="enscript-string">&quot;$tmp/ctrl&quot;</span> <span class="enscript-string">&quot;$tmp/alldef&quot;</span> &gt;<span class="enscript-string">&quot;$tmp/undef&quot;</span>
    81. 

  81. comm -12 <span class="enscript-string">&quot;$tmp/ctrl&quot;</span> <span class="enscript-string">&quot;$tmp/alldef&quot;</span> &gt;<span class="enscript-string">&quot;$tmp/def&quot;</span>
    82. 

  82. <span class="enscript-comment"># create a sed script that extracts the controlling macro definitions
    83. 

  83. </span><span class="enscript-comment"># and converts them to unifdef command-line arguments
    84. 

  84. </span>sed 's|.*|s/^&amp;\\(([^)]*)\\)\\{0,1\\} /-D&amp;=/p|' &lt;<span class="enscript-string">&quot;$tmp/def&quot;</span> &gt;<span class="enscript-string">&quot;$tmp/script&quot;</span>
    85. 

  85. <span class="enscript-comment"># create the final unifdef command
    86. 

  86. </span>{	<span class="enscript-keyword">echo</span> <span class="enscript-string">&quot;$unifdef&quot;</span> $debug -k '\'
    87. 

  87. 	<span class="enscript-comment"># convert the controlling undefined macros to -U arguments
    88. 

  88. </span>	sed 's/.*/-U&amp; \\/' &lt;<span class="enscript-string">&quot;$tmp/undef&quot;</span>
    89. 

  89. 	<span class="enscript-comment"># convert the controlling defined macros to quoted -D arguments
    90. 

  90. </span>	sed -nf <span class="enscript-string">&quot;$tmp/script&quot;</span> &lt;<span class="enscript-string">&quot;$tmp/hashdefs&quot;</span> |
    91. 

  91. 		sed <span class="enscript-string">&quot;s/'/'\\\\''/g;s/.*/'&amp;' \\\\/&quot;</span>
    92. 

  92. 	<span class="enscript-keyword">echo</span> '<span class="enscript-string">&quot;$@&quot;</span>'
    93. 

  93. } &gt;<span class="enscript-string">&quot;$tmp/cmd&quot;</span>
    94. 

  94. <span class="enscript-keyword">case</span> $debug <span class="enscript-keyword">in</span>
    95. 

  95. -d)	<span class="enscript-keyword">for</span> i <span class="enscript-keyword">in</span> ctrl hashdefs alldef undef def script cmd
    96. 

  96. 	<span class="enscript-keyword">do</span>	<span class="enscript-keyword">echo</span> ==== $i
    97. 

  97. 		cat <span class="enscript-string">&quot;$tmp/$i&quot;</span>
    98. 

  98. 	<span class="enscript-keyword">done</span> 1&gt;&amp;2
    99. 

  99. <span class="enscript-keyword">esac</span>
    100. 

  100. <span class="enscript-comment"># run the command we just created
    101. 

  101. </span>sh <span class="enscript-string">&quot;$tmp/cmd&quot;</span> <span class="enscript-string">&quot;$@&quot;</span>
    102. 

  102. </pre>
    103. 

  103. <hr />
    104. 

  104. </body></html>
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