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/*
driver.cc
*/
#include <iostream>
#include <string>
#include <algorithm>
#include <bobcat/exception>
#ifdef BOBCAT
#include <bobcat/arg>
#else
#include "../arg"
#endif
using namespace std;
using namespace FBB;
void optcheck(char c)
{
Arg &arg = Arg::instance();
if (size_t count = arg.option(c))
cout << "Saw option " << c << " " << count << " times" << '\n';
if (string("def").find(c) != string::npos)
{
string value;
size_t idx;
idx = arg.option(&value, c);
cout << idx << " returned by option() for "
"option " << c <<
", which has value `" << value << "'\n";
size_t count = arg.option(&idx, &value, c);
cout << count << " times option " << c << '\n';
if (idx == count)
cout << "No non-empty option values" << '\n';
else
{
cout << "First non-empty option at " << idx << '\n';
for (size_t ix = 0; ix < count; ++ix)
{
arg.option(ix, &value, c);
cout << ix << ": " << value << '\n';
}
}
}
cout << '\n';
}
void longopt(char const *longOpt)
{
string value;
Arg &arg = Arg::instance();
size_t opt = arg.option(&value, longOpt);
if (!opt)
return;
cout << longOpt << " " << opt << " times:\t" <<
(value.length() ? value : "-- no arg--") << '\n';
}
void usage(string const &progname)
{
cout <<
"Usage: " << progname << " arg options\n"
"where:\n"
" arg: any argument\n"
" options: any option from abcd:e:f:hv\n"
" try options requiring arguments without specifying an "
"argument\n"
" try other options too. -h provides this help,\n"
" -v provides the version\n"
"Available long options:\n"
" --optional, --extra (+ arg), --file (as -f),\n"
" --version (as -v), --add (as -a)\n";
}
int main(int argc, char **argv)
try
{
Arg::LongOption lo[] =
{
{"optional", Arg::Optional},
{"extra", Arg::Required},
{"none", Arg::NoArg},
{"file", 'f'},
{"version", 'v'},
{"add", 'a'}
};
try
{
Arg::initialize('t', "+abcd:e:f::hvt", lo, lo + 6, argc, argv);
Arg &arg = Arg::instance(); // just to check ::instance()
cout << "dashed options start at index " << arg.beyondDashes() << endl;
arg.versionHelp(usage, "0.00", 1);
for_each("abcdefg", "abcdefg" + 7, optcheck)
;
for (size_t idx = 0; idx < arg.nArgs(); idx++)
cout << "Argument " << idx << " = " << arg[idx] << '\n';
cout << '\n';
cout << "Long options:\n" << dec;
longopt("optional");
longopt("extra");
longopt("file");
longopt("add");
longopt("none");
}
catch (exception const &e)
{
cout << e.what() << '\n';
}
}
catch (int x)
{
cout << "int exception caught, value = " << x << '\n';
return x;
}
catch (exception const &e)
{
cout << "Exception caught: " << e.what() << '\n';
return 1;
}
catch (...)
{
cout << "Unexpected exception caught, shouldn't happen\n";
return 1;
}
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