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<hr><h1>utf8html.cpp</h1><div class="fragment"><pre>00001 <font class="comment">/******************************************************************************</font>
00002 <font class="comment"> *</font>
00003 <font class="comment"> * utf8html - SWFilter decendant to convert a UTF-8 stream to HTML escapes</font>
00004 <font class="comment"> *</font>
00005 <font class="comment"> */</font>
00006
00007
00008 <font class="preprocessor">#include <stdlib.h></font>
00009 <font class="preprocessor">#include <stdio.h></font>
00010 <font class="preprocessor">#include <utf8html.h></font>
00011
00012 UTF8HTML::UTF8HTML() {
00013 }
00014
00015
00016 <font class="keywordtype">char</font> UTF8HTML::ProcessText(<font class="keywordtype">char</font> *text, <font class="keywordtype">int</font> maxlen, <font class="keyword">const</font> <a class="code" href="class_s_w_key.html">SWKey</a> *key, <font class="keyword">const</font> <a class="code" href="class_s_w_module.html">SWModule</a> *module)
00017 {
00018 <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> *to, *from;
00019 <font class="keywordtype">int</font> len;
00020 <font class="keywordtype">char</font> digit[10];
00021 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> ch;
00022
00023 len = strlenw(text) + 2; <font class="comment">// shift string to right of buffer</font>
00024 <font class="keywordflow">if</font> (len < maxlen) {
00025 memmove(&text[maxlen - len], text, len);
00026 from = (<font class="keywordtype">unsigned</font> <font class="keywordtype">char</font>*)&text[maxlen - len];
00027 }
00028 <font class="keywordflow">else</font> from = (<font class="keywordtype">unsigned</font> <font class="keywordtype">char</font>*)text;
00029 <font class="comment">// -------------------------------</font>
00030 <font class="keywordflow">for</font> (to = (<font class="keywordtype">unsigned</font> <font class="keywordtype">char</font>*)text; *from; from++) {
00031 ch = 0;
00032 <font class="keywordflow">if</font> ((*from & 128) != 128) {
00033 <font class="comment">// if (*from != ' ')</font>
00034 *to++ = *from;
00035 <font class="keywordflow">continue</font>;
00036 }
00037 <font class="keywordflow">if</font> ((*from & 128) && ((*from & 64) != 64)) {
00038 <font class="comment">// error</font>
00039 *from = <font class="charliteral">'x'</font>;
00040 <font class="keywordflow">continue</font>;
00041 }
00042 *from <<= 1;
00043 <font class="keywordtype">int</font> subsequent;
00044 <font class="keywordflow">for</font> (subsequent = 1; (*from & 128); subsequent++) {
00045 *from <<= 1;
00046 from[subsequent] &= 63;
00047 ch <<= 6;
00048 ch |= from[subsequent];
00049 }
00050 subsequent--;
00051 *from <<=1;
00052 <font class="keywordtype">char</font> significantFirstBits = 8 - (2+subsequent);
00053
00054 ch |= (((short)*from) << (((6*subsequent)+significantFirstBits)-8));
00055 from += subsequent;
00056 *to++ = <font class="charliteral">'&'</font>;
00057 *to++ = <font class="charliteral">'#'</font>;
00058 sprintf(digit, <font class="stringliteral">"%d"</font>, ch);
00059 <font class="keywordflow">for</font> (<font class="keywordtype">char</font> *dig = digit; *dig; dig++)
00060 *to++ = *dig;
00061 *to++ = <font class="charliteral">';'</font>;
00062 }
00063 *to++ = 0;
00064 *to = 0;
00065 <font class="keywordflow">return</font> 0;
00066 }
</pre></div><hr><address align="right"><small>Generated on Thu Jun 20 22:13:01 2002 for The Sword Project by
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