13 lines
281 B
Dart
13 lines
281 B
Dart
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extension TakeWhile on String {
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String takeWhile(Function charValidator) {
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StringBuffer output = StringBuffer();
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for (final char in this.codeUnits) {
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if (charValidator(char)) output.writeCharCode(char);
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else break;
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}
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return output.toString();
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}
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}
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