15 lines
306 B
Dart
15 lines
306 B
Dart
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 codeUnits) {
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if (charValidator(char)) {
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output.writeCharCode(char);
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} else {
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break;
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}
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}
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return output.toString();
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}
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}
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