29 lines
845 B
Dart
29 lines
845 B
Dart
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import 'dart:io';
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import 'package:combinator/combinator.dart';
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import 'package:string_scanner/string_scanner.dart';
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final Parser<String> id =
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match<String>(RegExp(r'[A-Za-z]+')).value((r) => r.span.text);
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// We can use `separatedBy` to easily construct parser
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// that can be matched multiple times, separated by another
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// pattern.
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//
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// This is useful for parsing arrays or map literals.
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main() {
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while (true) {
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stdout.write('Enter a string (ex "a,b,c"): ');
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var line = stdin.readLineSync();
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var scanner = new SpanScanner(line, sourceUrl: 'stdin');
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var result = id.separatedBy(match(',').space()).parse(scanner);
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if (!result.successful) {
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for (var error in result.errors) {
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print(error.toolString);
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print(error.span.highlight(color: true));
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}
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} else
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print(result.value);
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}
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}
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