Skip to content

Instantly share code, notes, and snippets.

@vasalf vasalf/expat.c

Created Oct 18, 2019
Embed
What would you like to do?
Практика 7
#include <stdio.h>
#include <stddef.h>
#include <expat.h>
#define UNUSED(x) (void)(x)
#ifdef XML_UNICODE_WCHAR_T
# include <wchar.h>
# define XML_FMT_STR "ls"
#else
# define XML_FMT_STR "s"
#endif
void XMLCALL start_element(void* user_data, const XML_Char* name, const XML_Char **atts) {
UNUSED(atts);
int* depth = (int*)user_data;
for (int i = 0; i < *depth; i++) {
printf(" ");
}
char *f = XML_FMT_STR;
printf("%" XML_FMT_STR "\n", name);
}
void XMLCALL end_element(void *user_data, const XML_Char* name) {
UNUSED(name);
int* depth = (int*)user_data;
(*depth)--;
}
const int BUF_SIZE = 179;
int main() {
int ret = 0;
FILE* input = fopen("input.xml", "r");
if (input == NULL) {
fprintf(stderr, "Failed to open input file\n");
ret = 1;
goto ret;
}
XML_Parser parser = XML_ParserCreate(NULL);
char buf[BUF_SIZE];
int done = 0;
int depth = 0;
XML_SetUserData(parser, &depth);
XML_SetElementHandler(parser, start_element, end_element);
while (!done) {
size_t len = fread(buf, 1, sizeof(buf), input);
done = len < sizeof(buf);
if (XML_Parse(parser, buf, len, done) == XML_STATUS_ERROR) {
fprintf(stderr, "XML error\n");
ret = 1;
goto free_parser;
}
}
free_parser:
XML_ParserFree(parser);
close_file:
fclose(input);
ret:
return ret;
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.