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Diffstat (limited to 'cli-examples/hello/driver.cxx')
-rw-r--r-- | cli-examples/hello/driver.cxx | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/cli-examples/hello/driver.cxx b/cli-examples/hello/driver.cxx new file mode 100644 index 0000000..bc37564 --- /dev/null +++ b/cli-examples/hello/driver.cxx @@ -0,0 +1,58 @@ +// file : hello/driver.cxx +// author : Boris Kolpackov <boris@codesynthesis.com> +// license : MIT; see accompanying LICENSE file + +#include <iostream> + +#include "hello.hxx" + +using namespace std; + +void +usage (ostream& os) +{ + os << "usage: driver [options] <names>" << endl + << "options:" << endl; + options::print_usage (os); +} + +int +main (int argc, char* argv[]) +{ + try + { + int end; // End of options. + options o (argc, argv, end); + + if (o.help ()) + { + usage (cout); + return 0; + } + + if (end == argc) + { + cerr << "no names provided" << endl; + usage (cerr); + return 1; + } + + // Print the greetings. + // + for (int i = end; i < argc; i++) + { + cout << o.greeting () << ", " << argv[i]; + + for (unsigned int j = 0; j < o.exclamations (); j++) + cout << '!'; + + cout << endl; + } + } + catch (const cli::exception& e) + { + cerr << e << endl; + usage (cerr); + return 1; + } +} |