| 1 | <html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>H. Code for Encoding Conversion Example</title><meta name="generator" content="DocBook XSL Stylesheets V1.61.2"><link rel="home" href="index.html" title="Libxml Tutorial"><link rel="up" href="index.html" title="Libxml Tutorial"><link rel="previous" href="apg.html" title="G. Code for Retrieving Attribute Value Example"><link rel="next" href="api.html" title="I. Acknowledgements"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">H. Code for Encoding Conversion Example</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="apg.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="api.html">Next</a></td></tr></table><hr></div><div class="appendix" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="convertappendix"></a>H. Code for Encoding Conversion Example</h2></div></div><div></div></div><p>
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| 2 | </p><pre class="programlisting">
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| 3 | #include <string.h>
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| 4 | #include <libxml/parser.h>
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| 5 |
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| 6 |
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| 7 | unsigned char*
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| 8 | convert (unsigned char *in, char *encoding)
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| 9 | {
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| 10 | unsigned char *out;
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| 11 | int ret,size,out_size,temp;
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| 12 | xmlCharEncodingHandlerPtr handler;
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| 13 |
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| 14 | size = (int)strlen(in)+1;
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| 15 | out_size = size*2-1;
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| 16 | out = malloc((size_t)out_size);
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| 17 |
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| 18 | if (out) {
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| 19 | handler = xmlFindCharEncodingHandler(encoding);
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| 20 |
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| 21 | if (!handler) {
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| 22 | free(out);
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| 23 | out = NULL;
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| 24 | }
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| 25 | }
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| 26 | if (out) {
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| 27 | temp=size-1;
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| 28 | ret = handler->input(out, &out_size, in, &temp);
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| 29 | if (ret || temp-size+1) {
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| 30 | if (ret) {
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| 31 | printf("conversion wasn't successful.\n");
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| 32 | } else {
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| 33 | printf("conversion wasn't successful. converted: %i octets.\n",temp);
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| 34 | }
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| 35 | free(out);
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| 36 | out = NULL;
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| 37 | } else {
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| 38 | out = realloc(out,out_size+1);
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| 39 | out[out_size]=0; /*null terminating out*/
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| 40 |
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| 41 | }
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| 42 | } else {
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| 43 | printf("no mem\n");
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| 44 | }
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| 45 | return (out);
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| 46 | }
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| 47 |
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| 48 |
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| 49 | int
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| 50 | main(int argc, char **argv) {
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| 51 |
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| 52 | unsigned char *content, *out;
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| 53 | xmlDocPtr doc;
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| 54 | xmlNodePtr rootnode;
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| 55 | char *encoding = "ISO-8859-1";
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| 56 |
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| 57 |
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| 58 | if (argc <= 1) {
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| 59 | printf("Usage: %s content\n", argv[0]);
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| 60 | return(0);
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| 61 | }
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| 62 |
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| 63 | content = argv[1];
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| 64 |
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| 65 | out = convert(content, encoding);
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| 66 |
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| 67 | doc = xmlNewDoc ("1.0");
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| 68 | rootnode = xmlNewDocNode(doc, NULL, (const xmlChar*)"root", out);
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| 69 | xmlDocSetRootElement(doc, rootnode);
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| 70 |
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| 71 | xmlSaveFormatFileEnc("-", doc, encoding, 1);
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| 72 | return (1);
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| 73 | }
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| 74 |
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| 75 | </pre><p>
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| 76 | </p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="apg.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="index.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="api.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">G. Code for Retrieving Attribute Value Example </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> I. Acknowledgements</td></tr></table></div></body></html>
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