Creating implementation for idiom 233 : Read a command line string flag

Idiom

# 233 Read a command line string flag

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Print the value of the flag -country passed to the program command line, or the default value "Canada" if no such flag was passed.

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Other implementations

import "flag"

var country = flag.String("country", "Canada", "user home country")
flag.Parse()
fmt.Println("country is", *country)

Demo
Doc

uses CustApp;

S := Application.GetOptionValue('country');
if S = '' then S := 'Canada';
writeln('Country = ',S);

use Getopt::Long;

my $country = 'Canada';
GetOptions("country=s" => \$country) or die("Error in command line args\n");
print "Country is $country\n";

Doc
Origin

import argparse

parser = argparse.ArgumentParser()
parser.add_argument('-country', default='Canada', dest='country')
args = parser.parse_args()
print('country is', args.country)

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