extracting data from xml file using c in linux

[karthikmca]

HI,

I have to extract data from xml file through c coding in linux.
I am using expat library function in my coding.

whats my problem is ........


xml_set_element_handler(parser,start,end);

here start and end are call back function. they are not invoked?


this is my code i am using. this code gets compiled with error free. but the call back function start and end are not invoking by the parser!!!.
Code:

#include<stdio.h>
#include<string.h>
#include<expat.h>

void XMLCALL start(void *userData,const XML_Char *name,const XML_Char **atts);
void XMLCALL end(void *userData,const XML_Char *name);
void XMLCALL chard(void *ud,const XML_Char *s,int len);

int main()
{
XML_Parser p;
p=XML_ParserCreate("US-ASCII");

char *str,*str1;
str="<name att='2323' att2='545'>test value</name>";
str1="<name>";

int x=0;
x=strlen(str);

printf("%d",XML_Parse(p,str,x,1));

XML_SetUserData(p,str);
XML_SetElementHandler(p,start,end);
return 1;
}
void XMLCALL start(void *userData, const XML_Char *name,const XML_Char **atts)
{
printf("%s",name);
}
void XMLCALL end(void *userData,const XML_Char *name)
{
printf("End");
}


please help me

[Rubberman]

Could it be here?

printf("%d",XML_Parse(p,str,x,1));

XML_SetUserData(p,str);
XML_SetElementHandler(p,start,end);

Note that you are setting the element handlers AFTER you parse the string, so naturally they aren't being invoked.

[karthikmca]

hm tats right,
i have re-arranged the line. now the callback functions is getting invoked!