Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/propmod_8c_source.html
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<h1>examples/PIPS/antiword/src/propmod.c</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * propmod.c</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 2001-2003 A.J. van Os; Released under GPL</span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> * Description:</span>
<a name="l00006"></a>00006 <span class="comment"> * Build, read and destroy a list (array) of Word property modifiers</span>
<a name="l00007"></a>00007 <span class="comment"> */</span>
<a name="l00008"></a>00008
<a name="l00009"></a>00009 <span class="preprocessor">#include <stdio.h></span>
<a name="l00010"></a>00010 <span class="preprocessor">#include <string.h></span>
<a name="l00011"></a>00011 <span class="preprocessor">#include "antiword.h"</span>
<a name="l00012"></a>00012
<a name="l00013"></a>00013 <span class="preprocessor">#if defined(DEBUG)</span>
<a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor">#define ELEMENTS_TO_ADD 3</span>
<a name="l00015"></a>00015 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00016"></a>00016 <span class="preprocessor"></span><span class="preprocessor">#define ELEMENTS_TO_ADD 30</span>
<a name="l00017"></a>00017 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* DEBUG */</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="comment">/* Variables needed to write the property modifier list */</span>
<a name="l00020"></a>00020 <span class="keyword">static</span> UCHAR **ppAnchor = NULL;
<a name="l00021"></a>00021 <span class="keyword">static</span> <span class="keywordtype">size_t</span> tNextFree = 0;
<a name="l00022"></a>00022 <span class="keyword">static</span> <span class="keywordtype">size_t</span> tMaxElements = 0;
<a name="l00023"></a>00023
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="comment">/*</span>
<a name="l00026"></a>00026 <span class="comment"> * vDestroyPropModList - destroy the property modifier list</span>
<a name="l00027"></a>00027 <span class="comment"> */</span>
<a name="l00028"></a>00028 <span class="keywordtype">void</span>
<a name="l00029"></a>00029 vDestroyPropModList(<span class="keywordtype">void</span>)
<a name="l00030"></a>00030 {
<a name="l00031"></a>00031 <span class="keywordtype">size_t</span> tIndex;
<a name="l00032"></a>00032
<a name="l00033"></a>00033 DBG_MSG(<span class="stringliteral">"vDestroyPropModList"</span>);
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="comment">/* Free all the elements of the list */</span>
<a name="l00036"></a>00036 <span class="keywordflow">for</span> (tIndex = 0; tIndex < tNextFree; tIndex++) {
<a name="l00037"></a>00037 ppAnchor[tIndex] = xfree(ppAnchor[tIndex]);
<a name="l00038"></a>00038 }
<a name="l00039"></a>00039 <span class="comment">/* Free the list itself */</span>
<a name="l00040"></a>00040 ppAnchor = xfree(ppAnchor);
<a name="l00041"></a>00041 <span class="comment">/* Reset all control variables */</span>
<a name="l00042"></a>00042 tNextFree = 0;
<a name="l00043"></a>00043 tMaxElements = 0;
<a name="l00044"></a>00044 } <span class="comment">/* end of vDestroyPropModList */</span>
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <span class="comment">/*</span>
<a name="l00047"></a>00047 <span class="comment"> * vAdd2PropModList - add an element to the property modifier list</span>
<a name="l00048"></a>00048 <span class="comment"> */</span>
<a name="l00049"></a>00049 <span class="keywordtype">void</span>
<a name="l00050"></a>00050 vAdd2PropModList(<span class="keyword">const</span> UCHAR *aucPropMod)
<a name="l00051"></a>00051 {
<a name="l00052"></a>00052 <span class="keywordtype">size_t</span> tSize, tLen;
<a name="l00053"></a>00053
<a name="l00054"></a>00054 fail(aucPropMod == NULL);
<a name="l00055"></a>00055
<a name="l00056"></a>00056 NO_DBG_MSG(<span class="stringliteral">"vAdd2PropModList"</span>);
<a name="l00057"></a>00057
<a name="l00058"></a>00058 <span class="keywordflow">if</span> (tNextFree >= tMaxElements) {
<a name="l00059"></a>00059 tMaxElements += ELEMENTS_TO_ADD;
<a name="l00060"></a>00060 tSize = tMaxElements * <span class="keyword">sizeof</span>(UCHAR **);
<a name="l00061"></a>00061 ppAnchor = xrealloc(ppAnchor, tSize);
<a name="l00062"></a>00062 }
<a name="l00063"></a>00063 NO_DBG_DEC(tNextFree);
<a name="l00064"></a>00064
<a name="l00065"></a>00065 tLen = 2 + (size_t)usGetWord(0, aucPropMod);
<a name="l00066"></a>00066 NO_DBG_HEX(tLen);
<a name="l00067"></a>00067 NO_DBG_PRINT_BLOCK(pucPropMod, tLen);
<a name="l00068"></a>00068 ppAnchor[tNextFree] = xmalloc(tLen);
<a name="l00069"></a>00069 memcpy(ppAnchor[tNextFree], aucPropMod, tLen);
<a name="l00070"></a>00070 tNextFree++;
<a name="l00071"></a>00071 } <span class="comment">/* end of vAdd2PropModList */</span>
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="comment">/*</span>
<a name="l00074"></a>00074 <span class="comment"> * aucReadPropModListItem - get an item of the property modifier list</span>
<a name="l00075"></a>00075 <span class="comment"> */</span>
<a name="l00076"></a>00076 <span class="keyword">const</span> UCHAR *
<a name="l00077"></a>00077 aucReadPropModListItem(USHORT usPropMod)
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 <span class="keyword">static</span> UCHAR aucBuffer[4];
<a name="l00080"></a>00080 <span class="keywordtype">size_t</span> tIndex;
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="keywordflow">if</span> (usPropMod == IGNORE_PROPMOD) {
<a name="l00083"></a>00083 <span class="comment">/* This Properties Modifier must be ignored */</span>
<a name="l00084"></a>00084 <span class="keywordflow">return</span> NULL;
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="keywordflow">if</span> (!odd(usPropMod)) {
<a name="l00088"></a>00088 <span class="comment">/* Variant 1: The information is in the input ifself */</span>
<a name="l00089"></a>00089 aucBuffer[0] = 2;
<a name="l00090"></a>00090 aucBuffer[1] = 0;
<a name="l00091"></a>00091 aucBuffer[2] = (UCHAR)((usPropMod & 0x00fe) >> 1);
<a name="l00092"></a>00092 aucBuffer[3] = (UCHAR)((usPropMod & 0xff00) >> 8);
<a name="l00093"></a>00093 <span class="keywordflow">return</span> aucBuffer;
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keywordflow">if</span> (ppAnchor == NULL) {
<a name="l00097"></a>00097 <span class="comment">/* No information available */</span>
<a name="l00098"></a>00098 <span class="keywordflow">return</span> NULL;
<a name="l00099"></a>00099 }
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="comment">/* Variant 2: The input contains an index */</span>
<a name="l00102"></a>00102 tIndex = (size_t)(usPropMod >> 1);
<a name="l00103"></a>00103 <span class="keywordflow">if</span> (tIndex >= tNextFree) {
<a name="l00104"></a>00104 DBG_HEX(usPropMod);
<a name="l00105"></a>00105 DBG_DEC(tIndex);
<a name="l00106"></a>00106 DBG_DEC(tNextFree);
<a name="l00107"></a>00107 <span class="keywordflow">return</span> NULL;
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109 <span class="keywordflow">return</span> ppAnchor[tIndex];
<a name="l00110"></a>00110 } <span class="comment">/* end of aucGetPropModListItem */</span>
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