onlinehelp.cc

Go to the documentation of this file.

#define ONLINEHELP_VERSION \
  "ONLINEHELP   V1.1   print online help"

#include <iostream>
#include <tfxx/commandline.h>
#include <stfinv/stfinvany.h>

using std::cout;
using std::cerr;
using std::endl;

bool selectprocedure;
std::string procedure_id;

int main(int iargc, char* argv[])
{

  // define usage information
  char usage_text[]=
  {
    ONLINEHELP_VERSION "\n"
    "usage: onlinehelp [-procedure p] [usage]" "\n"
    "   or: onlinehelp --help|-h" "\n"
  };

  // define full help text
  char help_text[]=
  {
    "usage        any non-empty parameter lets the program output\n"
    "             the usage summary of libstfinv\n"
    "-procedure p prints the detailed description of procedure \"p\"\n"
  };

  // define commandline options
  using namespace tfxx::cmdline;
  static Declare options[]= 
  {
    // 0: print help
    {"help",arg_no,"-"},
    // 1: verbose mode
    {"v",arg_no,"-"},
    // 2: verbose mode
    {"procedure",arg_yes,"-"},
    {NULL}
  };

  // no arguments? print usage...
  if (iargc<2) 
  {
    cerr << usage_text << endl;
    stfinv::engines(cout);
    exit(0);
  }

  // collect options from commandline
  Commandline cmdline(iargc, argv, options);

  // help requested? print full help text...
  if (cmdline.optset(0))
  {
    cerr << usage_text << endl << endl;
    cerr << help_text << endl;
    stfinv::engines(cout);
    exit(0);
  }

  selectprocedure=cmdline.optset(2);
  procedure_id=cmdline.string_arg(2);

  if (selectprocedure)
  {
    stfinv::usage(procedure_id, cout);
  }
  else
  {
    stfinv::help(cout);
  }
}

/* ----- END OF onlinehelp.cc ----- */