Fix readme
Align with example/example.dart
diff --git a/README.md b/README.md
index 15aa242..6427218 100644
--- a/README.md
+++ b/README.md
@@ -2,29 +2,29 @@
using a series of `Pattern`s. For example:
```dart
-import 'dart:math';
+import 'dart:math' as math;
import 'package:string_scanner/string_scanner.dart';
num parseNumber(String source) {
// Scan a number ("1", "1.5", "-3").
- var scanner = StringScanner(source);
+ final scanner = StringScanner(source);
// [Scanner.scan] tries to consume a [Pattern] and returns whether or not it
// succeeded. It will move the scan pointer past the end of the pattern.
- var negative = scanner.scan("-");
+ final negative = scanner.scan('-');
// [Scanner.expect] consumes a [Pattern] and throws a [FormatError] if it
// fails. Like [Scanner.scan], it will move the scan pointer forward.
- scanner.expect(RegExp(r"\d+"));
+ scanner.expect(RegExp(r'\d+'));
// [Scanner.lastMatch] holds the [MatchData] for the most recent call to
// [Scanner.scan], [Scanner.expect], or [Scanner.matches].
var number = num.parse(scanner.lastMatch[0]);
- if (scanner.scan(".")) {
- scanner.expect(RegExp(r"\d+"));
- var decimal = scanner.lastMatch[0];
+ if (scanner.scan('.')) {
+ scanner.expect(RegExp(r'\d+'));
+ final decimal = scanner.lastMatch[0];
number += int.parse(decimal) / math.pow(10, decimal.length);
}
