libxml2/doc/tutorial/includeconvert.c

   1 <![CDATA[
   2 #include <string.h>
   3 #include <libxml/parser.h>
   4
   5
   6 unsigned char*
   7 convert (unsigned char *in, char *encoding)
   8 {
   9         unsigned char *out;
  10         int ret,size,out_size,temp;
  11         xmlCharEncodingHandlerPtr handler;
  12
  13         size = (int)strlen(in)+1;
  14         out_size = size*2-1;
  15         out = malloc((size_t)out_size);
  16
  17         if (out) {
  18                 handler = xmlFindCharEncodingHandler(encoding);
  19
  20                 if (!handler) {
  21                         free(out);
  22                         out = NULL;
  23                 }
  24         }
  25         if (out) {
  26                 temp=size-1;
  27                 ret = handler->input(out, &out_size, in, &temp);
  28                 if (ret || temp-size+1) {
  29                         if (ret) {
  30                                 printf("conversion wasn't successful.\n");
  31                         } else {
  32                                 printf("conversion wasn't successful. converted: %i octets.\n",temp);
  33                         }
  34                         free(out);
  35                         out = NULL;
  36                 } else {
  37                         out = realloc(out,out_size+1);
  38                         out[out_size]=0; /*null terminating out*/
  39
  40                 }
  41         } else {
  42                 printf("no mem\n");
  43         }
  44         return (out);
  45 }
  46
  47
  48 int
  49 main(int argc, char **argv) {
  50
  51         unsigned char *content, *out;
  52         xmlDocPtr doc;
  53         xmlNodePtr rootnode;
  54         char *encoding = "ISO-8859-1";
  55
  56
  57         if (argc <= 1) {
  58                 printf("Usage: %s content\n", argv[0]);
  59                 return(0);
  60         }
  61
  62         content = argv[1];
  63
  64         out = convert(content, encoding);
  65
  66         doc = xmlNewDoc ("1.0");
  67         rootnode = xmlNewDocNode(doc, NULL, (const xmlChar*)"root", out);
  68         xmlDocSetRootElement(doc, rootnode);
  69
  70         xmlSaveFormatFileEnc("-", doc, encoding, 1);
  71         return (1);
  72 }
  73 ]]>