C语言实现xml构造解析器

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "sxml.h"
 
 
#define LUA_SCRIPT "function fun()\n\
  int a;\n\
  a = 10;\n\
  return a;\n\
end"
 
 
int main()
{
  sxml_file_info_t* info;
  char* tmp;
  const char* pstr;
  int line=1;
  char buff[128]={0};
  sxml_doc_t* parser=NULL;
  sxml_doc_t* doc = sxml_doc_new("a.xml","1.0","GB2312");
  sxml_node_t* node = sxml_node_new("root");
  sxml_attr_t* attr = sxml_attr_new("age","25");
   
  sxml_node_t* subnode = sxml_node_new("score");
  sxml_node_t* rawdata = sxml_rawdata_new(NULL,"hello world!",strlen("hello world!")); 
  sxml_node_t* rawdata2 = sxml_rawdata_new(NULL,"hello world!",strlen("hello world!")); 
  sxml_node_t* rawdata3 = sxml_rawdata_new(NULL,"hello world!",strlen("hello world!")); 
  sxml_node_t* rawdata4 = sxml_rawdata_new("raw","rawdata",strlen("rawdata")); 
  sxml_node_t* rawdata5 = sxml_rawdata_new("lua",LUA_SCRIPT,strlen(LUA_SCRIPT)); 
  sxml_node_t* innertext = sxml_innertext_new("内部字符串");
  sxml_node_t* comment = sxml_comment_new("注释");
  sxml_node_t* empty = sxml_empty_new("empty");
   
  sxml_add_attr2node(node,attr);
  attr = sxml_attr_new("sex","man");
  sxml_add_attr2node(node,attr);
 
  attr = sxml_attr_new("语文","95");
  sxml_add_attr2node(subnode,attr);
  attr = sxml_attr_new("数学","100");  
  sxml_add_attr2node(subnode,attr);
  attr = sxml_attr_new("英语","98");  
  sxml_add_attr2node(subnode,attr);
   
  sxml_add_subnode2node(node,subnode);
  sxml_add_subnode2node(node,rawdata);
  sxml_add_subnode2node(node,rawdata2);
  sxml_add_subnode2node(node,rawdata3);
  sxml_add_subnode2node(node,rawdata4);
  sxml_add_subnode2node(node,rawdata5);
  sxml_add_subnode2node(node,innertext);
  sxml_add_subnode2node(node,comment);
  sxml_add_subnode2node(node,empty); 
   
  sxml_add_node2doc(doc,node);
   
  //printf("%s\n",sxml_doc_print_buffered(doc,16));
  tmp = sxml_doc_print(doc);
  pstr = tmp;
  printf("%s\n", tmp);
  while((pstr = skip_line(pstr)))line++;
  printf("\n\n%d\n\n", line);
  //printf("\n\n%s\n\n",check_skip("<?xml version=\"1.0\" encoding=\"GB2312\"?>","<?xml version=\\\"")?"YES":"NO");
  //copy_until(buff,"<?xml version=\"1.0\" encoding=\"GB2312\"?>","\" ");
  //printf("\n\n%s\n\n",buff);
   
  //sxml_save(doc);
 
   
  sxml_doc_free(doc);
  doc = NULL;
  free(tmp);
   
  //printf("aaaa...................\n");
   
  //getchar();
   
  parser = sxml_parse("a.xml");
   
  //tmp = sxml_doc_print(parser);//有问题，内存越界
  tmp = sxml_doc_print_buffered(parser,16);
  printf("%s\n", tmp);
  free(tmp);
  sxml_save2file(parser,"b.xml");
  sxml_doc_free(parser);
   
  return 0;
}