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#include <seqan3/argument_parser/all.hpp>
#include <seqan3/core/debug_stream.hpp>
#include <seqan3/std/filesystem>
int main(int argc, const char ** argv)
{
seqan3::argument_parser myparser{"Test", argc, argv}; // initialize
//! [validator_call]
std::filesystem::path myfile{};
myparser.add_option(myfile,'f',"file","Output file containing the processed sequences.",
seqan3::option_spec::DEFAULT, seqan3::output_file_validator{{"fa","fasta"}});
//! [validator_call]
// an exception will be thrown if the user specifies a filename
// that does not have one of the extensions ["fa","fasta"],
// if the file already exists, or if the file is not writable.
try
{
myparser.parse();
}
catch (seqan3::argument_parser_error const & ext) // the user did something wrong
{
std::cerr << "[PARSER ERROR] " << ext.what() << "\n"; // customize your error message
return -1;
}
seqan3::debug_stream << "filename given by user passed validation: " << myfile << "\n";
return 0;
}
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