qpdf/examples/pdf-npages.cc

62 lines
1.1 KiB
C++

#include <iostream>
#include <string.h>
#include <qpdf/QPDF.hh>
static char const* whoami = 0;
void usage()
{
std::cerr << "Usage: " << whoami << " filename" << std::endl
<< "Prints the number of pages in filename" << std::endl;
exit(2);
}
int main(int argc, char* argv[])
{
if ((whoami = strrchr(argv[0], '/')) == NULL)
{
whoami = argv[0];
}
else
{
++whoami;
}
// For libtool's sake....
if (strncmp(whoami, "lt-", 3) == 0)
{
whoami += 3;
}
if ((argc == 2) && (strcmp(argv[1], "--version") == 0))
{
std::cout << whoami << " version 1.3" << std::endl;
exit(0);
}
if (argc != 2)
{
usage();
}
char const* filename = argv[1];
try
{
QPDF pdf;
pdf.processFile(filename);
QPDFObjectHandle root = pdf.getRoot();
QPDFObjectHandle pages = root.getKey("/Pages");
QPDFObjectHandle count = pages.getKey("/Count");
std::cout << count.getIntValue() << std::endl;
}
catch (std::exception& e)
{
std::cerr << whoami << ": " << e.what() << std::endl;
exit(2);
}
return 0;
}