parsing the value in between two XML tags

Question

I know this one has been asked before, however I can\'t seem to find a suitable solution, so I \'ll state the problem:

I have a string of characters that is similar to a

Answer 1

I would just use strstr():

char * get_value(const char *input)
{
  const char *start, *end;

  if((start = strstr(input, "")) != NULL)
  {
    start += strlen("");
    if((end = strstr(start, "")) != NULL)
    {
      char *out = malloc(end - start + 1);
      if(out != NULL)
      {
        memcpy(out, start, (end - start));
        out[end - start] = '\0';
        return out;
      }
    }
  }
  return NULL;
}

Note that the above is untested, written directly into the SO edit box. So, it's almost guaranteed to contain at least one off-by-one error.