bpriver_chain 0.16.0

Implementation of chain language. Available as cui, argument parser or inter-appliation communication.

example/example.dart

import 'package:bpriver_chain/bpriver_chain.dart';
import 'package:bpriver_origin/logger_result.dart';

void main() {

    final source = 'a --b x -c --v -w --x x y z -z';

    // parse serialized data.
    final parseStringResult = Chain.parseString(source);
    if (parseStringResult is! Success<List<String>, ChainException>) {
        print('Chain.parseString() failed.');
        return;
    }

    // Give List<String> type data to Chain.fromArguments() method.
    final parseListResult = Chain.fromArguments(parseStringResult.wrapped);
    if (parseListResult is! Success<Chain, ChainException>) {
        print('Chain.fromArguments() failed.');
        return;
    };

    final Chain chain = parseListResult.wrapped;

    final varietyResult = chain.getVarietyAsString('b');
    if (varietyResult is! Success<String, ChainException>) {
        print('chain.getVarietyAs() failed.');
        return;
    };

    final flagResult = chain.isFlag('c');

    final multipleVarietyResult = chain.getVarietyEnumerationAsString('x');
    if (multipleVarietyResult is! Success<List<String>, ChainException>) {
        print('chain.getVarietyAsVarietyEnumerationpleString() failed.');
        return;
    }

    print('head = ${chain.head.asContent.name}');
    print('b variety value = ${varietyResult.wrapped}');
    print('c flag = ${flagResult.wrapped}');
    print('x variety value list = ${multipleVarietyResult.wrapped}');

    print('variety enumeration list = ${chain.varietyEnumerationNameList}');
    print('variety list = ${chain.varietyNameList}');
    print('flag list = ${chain.flagNameList}');

}